CPG Nation Forum

CPG Nation Forum http://www.cpgnation.com/forum hourly 60 1970-01-01T00:00Z en vBulletin 2013-05-23T06:57:13Z http://www.cpgnation.com/forum/images/ca_serenity_red/misc/rss.jpg CPG Nation Forum http://www.cpgnation.com/forum Bad Vibration http://www.cpgnation.com/forum/bad-vibration-8476-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= hey everyone, I bought this engine from a guy that built it, this engine is a 383 stroker, I have done the install myself, set the timing and fired... hey everyone, I bought this engine from a guy that built it, this engine is a 383 stroker, I have done the install myself, set the timing and fired it up, it has a 540 lift cam, got it running fairly good but now I have a very bad vibration in it, the vibration starts at about 2500 and up and also vibrates when I put it in neutral, I am not a mechanic but I suspect I have a serious problem, I don't even know if this motor was broke in or not.
if this engine was not broke in what kind of damage am I looking at after putting 50 km on it.
thanks for helping me out. ]]> 2013-05-21T23:59:50Z hurricane COMP Cams Product Support returning an ez efi? http://www.cpgnation.com/forum/returning-ez-efi-8475-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Anyone return there ez efi? After year of fighting issues I put my carb back on. I moved all the electronics, rewired half the car, moved the O2... Anyone return there ez efi? After year of fighting issues I put my carb back on. I moved all the electronics, rewired half the car, moved the O2 sensor, resealed the exhaust, sent the ecu and O2 sensor back to be check and still doesn't run right. Until the AL comes on it keeps going rich with the slightest throttle movement, so rich it smokes runs extremely poor.

I bought the master kit with fuel pump and hoses. Is this returnable?

"We’re so confident in our EZ-EFI® Self Tuning Fuel Injection System that we’ll guarantee it – for life" ]]> 2013-05-21T23:35:17Z speedphreake FAST Product Support what valve lash?lost cam card http://www.cpgnation.com/forum/what-valve-lash-lost-cam-card-8474-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Im running high tech.440 #4078b lobe and a highrpm .420 #4067B lobe in a twin turbo bbc.what is the proper valve lash for those lobes. Thanks Sean Im running high tech.440 #4078b lobe and a highrpm .420 #4067B lobe in a twin turbo bbc.what is the proper valve lash for those lobes.
Thanks Sean ]]> 2013-05-21T19:35:11Z sean t COMP Cams Product Support 35-421-8 http://www.cpgnation.com/forum/35-421-8-a-8473-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi, is this camshaft with a Standard Base Circle or with reduced base circle? Thanks for your answer. Hi,

is this camshaft with a Standard Base Circle or with reduced base circle?

Thanks for your answer. ]]> 2013-05-21T09:28:35Z Triplet COMP Cams Product Support Partnerspost_pkg_all_star_18may2013 http://www.cpgnation.com/forum/partnerspost_pkg_all_star_18may2013-8472-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid=
More... ]]> 2013-05-20T16:30:13Z CPGRSS CPG Nation Videos pulsing injectors with key on http://www.cpgnation.com/forum/pulsing-injectors-key-8471-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have a 496 big block Chevy with a 671 6 pounds of boost on the dyno. When I key on the ignition the crank light on the ecu comes on and the... I have a 496 big block Chevy with a 671 6 pounds of boost on the dyno. When I key on the ignition the crank light on the ecu comes on and the injectors pulse and don't stop until I key off the ignition. When I key on the ignition again they don't pulse at all
I am using ezefi throttle body and the.2.0 xfi ecu with a duel trottle setup. Any help out there ]]> 2013-05-19T01:46:40Z 37jbrock FAST Product Support pulsing injectors with key on http://www.cpgnation.com/forum/pulsing-injectors-key-8470-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have a 496 big block Chevy with a 671 6 pounds of boost on the dyno. When I key on the ignition the crank light on the ecu comes on and the... I have a 496 big block Chevy with a 671 6 pounds of boost on the dyno. When I key on the ignition the crank light on the ecu comes on and the injectors pulse and don't stop until I key off the ignition. When I key on the ignition again they don't pulse at all
I am using ezefi throttle body and the.2.0 xfi ecu with a duel throttle setup. Any help out there ]]> 2013-05-19T01:31:27Z 37jbrock FAST Product Support Thumper cam install http://www.cpgnation.com/forum/thumper-cam-install-8469-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I just completed the intstall of a hydraulic thumper cam along with rebuild on my small block chevy. On start up it will not idle, if you let it drop... I just completed the intstall of a hydraulic thumper cam along with rebuild on my small block chevy. On start up it will not idle, if you let it drop below 1500 rpm it stalls out. I havegoneback thru and re- checked valve lash, timing, compression and it all checks ok. I installed the cam straight up to the "O"marks on the new comp chain set but I did not degree it in. Help! ]]> 2013-05-18T20:25:52Z WayneQ91 COMP Cams Product Support Fast XFI with no target A/F ratio displayed http://www.cpgnation.com/forum/fast-xfi-no-target-f-ratio-8468-new-post.html http://www.cpgnation.com/forum/attachments/3216-fast-xfi-no-target-f-ratio-5-13-base-tune.zip Any one have an idea why my target A/F ratio does not display on the dash board? This happens whether I'm online or offline. See the log and GCT file attached. Actual A/F ratio is displayed and O2 correction works displays but the target shows all 000's.

Attached Files

5-14 log.zip (2.6 KB)

]]> 2013-05-18T19:14:01Z SSMonte FAST Product Support Ez efi--how to open throttle blades and lower rpm http://www.cpgnation.com/forum/ez-efi-how-open-throttle-blades-8467-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I need to open up my throttle blades so I can get my IAC to where it needs to be, but every time I do it raises my RPM. Can someone tell me how to... I need to open up my throttle blades so I can get my IAC to where it needs to be, but every time I do it raises my RPM. Can someone tell me how to open my throttle blades and get my RPM's to stay at 800? Thanks... ]]> 2013-05-18T17:32:35Z 78 F150 FAST Product Support Watch The Hangover Part III Movie Online http://www.cpgnation.com/forum/watch-hangover-part-iii-movie-online-8466-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Watch The Hangover Part III Movie Online : just once shattering Alan out of a clinic for determinants presently unidentified, The Wolfpack evolves a... Watch The Hangover Part III Movie Online : just once shattering Alan out of a clinic for determinants presently unidentified, The Wolfpack evolves a undomesticated excursion which will take them from LA to metropolis to metropolis. "The Hangover 0.5 III" is that the third and last video in manager Todd Phillips' record-shattering comedy franchise. This time, there isn't any wedding. No smoker. What would possibly fail, right? whereas just once the Wolfpack strikes the road, all wagers ar off.

Download The Hangover Part III Movie Online : pictures has issued the trailer for the near sequel "The Hangover 0.5 III" premier Bradley Cooper, Ed Helms , Zach Galifianakis, Ken Jeong, Heather Graham, Jeffrey Tambor, Justin Bartha, John player, Sasha Barrese, Gillian Vigman, and Jamie Chung. ]]> 2013-05-18T12:40:58Z parul22 Drag Racing Talk Lean AFR readout when decelerating http://www.cpgnation.com/forum/lean-afr-readout-when-decelerating-8465-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi,

i've seen my trucks AFR read 15.9:1 (afaik that is the maximum the sensor can cover) on deceleration.

Is that a hint to look for leaks or does the EZ-EFI V1 shutdown fuel supply if the TPS is 0% but engine rpm a considerate amount above idle?

It runs perfectly normal but the tailpipe is black on the inside... i wonder if the EZ adds fuel to fight the lean-on-deceleration situation.

Thanks,
Alex ]]> 2013-05-15T14:39:32Z kingcrunch FAST Product Support IAC Question http://www.cpgnation.com/forum/iac-question-8464-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I am trying to get my cold start fast idle to work. I think my IAC is not working. Is there a way to check it to see if it is opening /closing.... I am trying to get my cold start fast idle to work.

I think my IAC is not working.

Is there a way to check it to see if it is opening /closing.

I have removed the IAC from the throttle body with the wiring harness connected.

No I have NOT unplugged the IAC with the power on.

Should I be able to see the IAC cycle by turning the key on and off.

I have also temporarily set the throttle follower and start IAC vs coolant temp positions to zero to see if the IAC cycles.

It does not seem to move.

After the key has been on for a while, the IAC does get warm as if it is getting power, it just does not seem to be moving.

Thanks,

Herb ]]> 2013-05-14T15:59:02Z Dart67 FAST Product Support Classic Fast Weak injector pulse when trying to start http://www.cpgnation.com/forum/classic-fast-weak-injector-pulse-when-8463-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Been chasing a problem that is very inconsistent. Car will sometimes start right up. Other times it will crank sputter and kick like timing is off.... Been chasing a problem that is very inconsistent. Car will sometimes start right up. Other times it will crank sputter and kick like timing is off. Seems like fuel problem but fuel pressure is right on target. Put noid light in to check pulse and low and behold no pulse.

It seems as though the problem comes and goes. If I try a few times it will start to kick and show pulse. Like I said very inconsistent.

This is in a turbo Buick with a adapter box from fast track performance.

Any ideas appreciated...

TIA

Rick ]]> 2013-05-14T02:22:22Z TurboBuRick FAST Product Support <![CDATA[Target Air:Fuel Ratio vs. RPM & MAP screen]]> http://www.cpgnation.com/forum/target-air-fuel-ratio-vs-rpm-8462-new-post.html http://www.cpgnation.com/forum/attachments/3211-target-air-fuel-ratio-vs-rpm-xfi-screen.jpg I have a question...

Should the green balloon in the Target Air:Fuel Ratio vs. RPM & MAP screen be at the same MAP and RPM location as the green balloon in the Volumetric Efficency vs. RPM & MAP ?

Mine is not, it stays at the bottom left when the engine is running.

If it is, how can I fix it.

Here is a screen shot of what I mean.

Attachment 3211

Thanks,

Herb

]]> 2013-05-14T00:15:22Z Dart67 FAST Product Support belvedere http://www.cpgnation.com/forum/belvedere-8461-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= :confused:i installed fast ez efi on my 65 belvedere afx street car.it has a 30 over 440 with 4sp and 3.23 gears.it started fine idles great even... :confused:i installed fast ez efi on my 65 belvedere afx street car.it has a 30 over 440 with 4sp and 3.23 gears.it started fine idles great even with ac on.it runs great down the road.my only complaint is my old 3310 holley got 12.5 to 13 mph.the efi gets about 9.0 to10.0 .i need help because i cant aford to drive the car at this rate. it went from 200 miles per tank of gas with carb to 150 per tank with efi.i have about 500 miles on efi.i was happy with the carb and thought efi should be better.right now my opinon of efi is not very good.someone please help!!! ]]> 2013-05-13T19:48:38Z belvedere FAST Product Support Internal Datalogging Disconnects From ECU http://www.cpgnation.com/forum/internal-datalogging-disconnects-ecu-8460-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= At the last race my internal datalogging would not work just all of a sudden. When I click read internal datalog it tells me no datalog to read and... At the last race my internal datalogging would not work just all of a sudden. When I click read internal datalog it tells me no datalog to read and disconnects from the ECU.

I have changed XFI boxes with the spare and it does the same thing.

Has to be the 2.0 software? ]]> 2013-05-12T16:44:30Z Infomaniac FAST Product Support New Install Looking for a Little Help http://www.cpgnation.com/forum/new-install-looking-little-help-8459-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= First, I apologize if this question has already been asked and answered. I tried a search but couldn't find exactly what I was looking for.

I have a SBC that I am converting with the EZ-EFI. Nothing particularly spectacular about this conversion - just looking for a the basic out-of-the-box setup.

My question concerns the tach signal issue. I am running an HEI distributor, but prior to this install I had already converted to the MSD box, so I'm running HEI and an MSD 6AL at the same time.

My question is this - currently my "tach out" terminal on the MSD box is running directly to my autometer in dash tach, which per the instrructions is exactly where it's supposed to be hooked up - if using an MSD box you can't run your tach signal directly off the coil or it voids the warranty, which I presume is a bad thing.

Since I know I need the MSD tach signal for the EZ ECU, can I simply splice the two together, and thus get a good tach signal from the MSD for both the ECU and the tach?

If I can't do this, then what other source would I have for getting two good tach signals?

Please tell me I'm not going to have to forsake my autometer tach in order to have a good tach signal for my EFI. . . .

A little help on this one will greatly help me get across the finish line and get this thing up and running. Thanks in advance, guys.

J ]]> 2013-05-12T02:24:29Z perple76 FAST Product Support vlave spring compressor http://www.cpgnation.com/forum/vlave-spring-compressor-8458-new-post.html http://www.cpgnation.com/forum/attachments/3209-vlave-spring-compressor-91mm.jpg I have a Dodge Viper srt-10 with T&D rollers, I have 2 broken valve springs, could comp cams product #5462 for an LS engine be ok to use, see my measurements please

]]> 2013-05-11T21:18:04Z sssammm COMP Cams Product Support Roller Rocker Pedestal, 1.6 Ratio PN: 1052-16 http://www.cpgnation.com/forum/roller-rocker-pedestal-1-6-ratio-8457-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Installing these on a 302 1978ish Ford head for a 347 stroker CompCam Hydralic Lifters Camshaft Xtreme Energy™, XE262H CompCam Springs CompCam... Installing these on a 302 1978ish Ford head for a 347 stroker
CompCam Hydralic Lifters
Camshaft Xtreme Energy™, XE262H
CompCam Springs
CompCam Valves

Basically everything in the top end is CompCam with the exception of the Pushrods and the Ford Racing Rocker Chanel Kit M-6588-A50

My question. I did a preliminary install to see where the roller tips of the rocker arms and touching the Valve Stem tip. I put a sharpie marker on each one and cycled the engine about 6 times. The markings that rubbed off are below center of the valve stem surface and not directly in the center.

Is this a problem? Thank you for your help.

Ed ]]> 2013-05-11T14:25:24Z Mochaman COMP Cams Product Support WideBand O2 Meter Documention http://www.cpgnation.com/forum/wideband-o2-meter-documention-8456-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I cannot find any REAL documentation on the F.A.S.T. Wideband O2 meters (specifically the 170602) I am wanting to purchase one for my dyno and just... I cannot find any REAL documentation on the F.A.S.T. Wideband O2 meters (specifically the 170602) I am wanting to purchase one for my dyno and just general tuning at the track, but without any real info such as external IO, power requirements, even how to install would be nice (Something besides... It's awesome, and easy and great
).. Could I please get a link to actual information that would be important to somebody who wants to do research before buying? ]]> 2013-05-11T13:57:04Z rab986 FAST Product Support VSS / speedosensor stopped working- why? http://www.cpgnation.com/forum/vss-speedosensor-stopped-working-why-8455-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi.

I've installed a 3- wire HALL speedometer sensor from Cyberdyne in my Ford T5 gearbox.

The signal wire runs to the XFI and I use it to log speed and also for the antispin function (although I have only tested this slightly....)

It has worked 100% but the 3. day out this spring, it suddenly did not show speed in the gauge... or in XFI.

The sensor was removed and tested today. All ears and mechanical issues OK. I hooked it up to 12V and the signal wire to the to the voltmeter and ground. The readings were just BS; voltage changed without wheel beeing turned and I did not see any 0 to 12V peaks as is supposed.

What can be the cause of such a sensor to stop working? Can voltage higher than 12V destroy these? Or are they just fragile and stop working? Just trying to eleminate any causes before I get a new sensor..

I googled and didn't find much and ask here since some of you know sensors....

RS ]]> 2013-05-09T21:29:48Z Caprimaniac FAST Product Support Adaptive Learning Questions http://www.cpgnation.com/forum/adaptive-learning-questions-8454-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= So i mistakenly trusted my tuner and believed in them and long story short... my plugs keep fouling (5 out of 8 for sure, 3 not that bad but not... So i mistakenly trusted my tuner and believed in them and long story short... my plugs keep fouling (5 out of 8 for sure, 3 not that bad but not great either) and i its clear that the main problem right now is that i am running way to rich during idle (based on data logging). my A/F is showing about 10 at idle. Anything below about 1500 RPMs is running rich basically very low 11's and into the 10's for A/F. Above 2000 RPM it looks like its behaving a bit more and into the 13's and even up into 14 at some points.

To begin, i have no knowledge of engine tuning but have been reading a ton in the past week. General motor info is 383 LT1 built for boost (plan to run 12 lbs with D1SC procharger) but running NA right now to break in. 9.5 CR. 32 lb injectors.

After speaking with the engine builder i want to use the adaptive learn feature to help dial in the fuel table/figures a bit and get the A/F ratio closer to where it should be and hopefully stop fouling the plugs.

My question is, can i set the Adaptive learn parameters to 0% TPS and to 50 degrees for the coolant temp and a relatively high idle gain so that the idle number start getting adjusted right away and aggressively? Or would this cause problems and maybe even stalling? I read that you usually dont want to adjust these number when the engine is cold but for the sake of saving the plugs this one time im asking if it makes sense to do this just once and once i see the O2 correction % drop down i can drop the gain % and also raise the adaptive learn temperature parameters so it doesnt learn on cold anymore. Does that make sense?

Thanks everyone. ]]> 2013-05-09T12:00:20Z SomeGuy25thZ FAST Product Support Driving test in the UK? http://www.cpgnation.com/forum/driving-test-uk-8453-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= How hard is it to pass the Driving test Alberta ?

I don't have an EU driver's license even though I have EU citizenship. I have 30 years of driving experience in the US and a valid US driver's license (expires 2014 and can be renewed thereafter)

1 Do I have 1 year to drive on a US DL before I have to get a UK license once I get residency? When does the countdown of 1 year start, from the date of NI issue? Or?

2. If I live in London, would it be possible to go to a small town and take my driver's test there? I presume I would also take my driving lessons there. I plan on taking a test with automatic transmission. I know that it would be easier than using my left hand to do manual shifting. I also know that automatic DL means i can only rent or drive an automatic car.

3. Is it really that difficult to pass the UK Driving test? What is it like, the theory and road test? ]]> 2013-05-09T11:07:57Z Andrewa Offroad Talk iron man 3 in dvd quality here http://www.cpgnation.com/forum/iron-man-3-dvd-quality-here-8452-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Watch Iron Man three on-line Free. If the Iron Man triad (which in any case won't this third chapter) the primary album issued a noteworthy universe, and eventually recommend the abilities of Henry M. Robert Downey son. for the final public, whereas s’ nearly folded during a abundant too lightweight on, the ridiculous humor and wobbly or lazy state of affairs. transfer Iron Man three picture show Free. ]]> 2013-05-09T10:12:40Z Doodle Offroad Talk broken rocker help needed http://www.cpgnation.com/forum/broken-rocker-help-needed-8451-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= hi all, Need some advice please i purchased a rebuilt 460 from a private seller that has a comp cams valvetrain solid cam, pushrods, guide... hi all,
Need some advice please

i purchased a rebuilt 460 from a private seller that has a comp cams valvetrain
solid cam, pushrods, guide plates, cast alum roller rockers.

Heres my problem, i had a shop fit the motor, asked him to check rocker clearances, he finished the job and advised that he didnt know the clearances and that he had backed them off and to take the car away to attend to some other issues and bring it back and he would find out correct tolerances and adjust the rockers.
after about an hour of running it dropped a cyl and i pulled the rocker cover to discover a broken rocker.
i then checked the clearances on the rockers to be 200-250 thou.
so my question, would these massive clearances be enough to snap a rocker in half or should i be looking else where, i dont have any cam or spring pressure info.
thanks dean ]]> 2013-05-09T04:32:58Z cruzincu COMP Cams Product Support Fast xim ? http://www.cpgnation.com/forum/fast-xim-8450-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= System is on a turbo 4 valve mod motor with ford cop. Having issues with what sounds like a freaking rev limiter going off (idles like crap) then... System is on a turbo 4 valve mod motor with ford cop.

Having issues with what sounds like a freaking rev limiter going off (idles like crap) then kinda clears up past 4,000 (free rev).

My fuel #'s do not make sense 64 at idle (160#, fuel constant at .68 for ethanol, fuel 70psi, injector offset set correctly) idles at .99 lambda

I have power and ground straight to the battery, cam and crank are isolated as best as can be and grounded on both ends.

I have some logs of it at idle and at about 25% tps opening.

XIM sync is at 7 but now and then goes to 10 or 1 then back to 7.

i run a fast xfi on my pushrod motor 1800hp no issues for over 5 years, this thing has me on the edge lol.
appreciate any help i can get thanks. ]]> 2013-05-08T22:57:50Z nitrousoutlaw FAST Product Support Hello All http://www.cpgnation.com/forum/hello-all-8449-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi everyone, I am a newbie and wanted to stop by and say hello. I am looking forward to joining into some conversations, and start a few threads... Hi everyone, I am a newbie and wanted to stop by and say hello. I am looking forward to joining into some conversations, and start a few threads myself.:D ]]> 2013-05-08T19:39:28Z P1971 TH-350 no reverse no 3rd http://www.cpgnation.com/forum/th-350-no-reverse-no-3rd-8448-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi all, Just installed TCI Pro Super Transmission Overhaul Kit part number: 328800 to my th-350 The problem is now that there is no reverse and no... Hi all,
Just installed TCI Pro Super Transmission Overhaul Kit part number: 328800 to my th-350
The problem is now that there is no reverse and no 3rd gear.There is no engine braking also. I know that those use the same clutch,and the problem could be there.
And the engine braking problem could be in the last clutch.I don´t have my transmission book at hand so i can´t speak in proper terms,but i´m sure you know what i´m talking about.:)

But can any other thing cause those problems???

I´ve checked
-valves not sticking
-everything to the visual inspection seems to be in order
-proper amount of oil,and the right one
-lingage alingment,ok

What could be the problem??And if it is on those clutches,how can i measure/inspect them that they fuction or not???

The package also included that golden separator plate or such,is it meant to be used solely or with the orginal separator plate of the transmission???This confuses me because on the other forum they said that on B&M kits they should be used both,in sandwitch manner.???
There is now installed only the golden plate which came with the kit.

Please help,i´m beginning to lose my mind with this transmission!!!:mad:

All help would be greatly appreciated!!!

Thank you,
jormaseppo from Finland ]]> 2013-05-08T09:55:08Z jormaseppo TCI Product Support xfi will not start as well as classic http://www.cpgnation.com/forum/xfi-will-not-start-well-classic-8447-new-post.html http://www.cpgnation.com/forum/attachments/3208-xfi-will-not-start-well-classic-xfi-2.0-caspers-harness.png trying to figure out why i cant get my xfi 2.0 to start as well as my friends classic, we discovered his other car with xfi wont start as easy... trying to figure out why i cant get my xfi 2.0 to start as well as my friends classic, we discovered his other car with xfi wont start as easy either. Mine has to crank and crank and crank before she will fire, his classic will make 2 revs then fire right up. Ive copied all the tables, iac cranking fuel, even scaled the injectors from his 72's to match the same pulswidth i would need with the 83's. I even have gone as far as to adjust the battery offset voltage to match. Still no dice.

we logged my car xfi 2.0 with caspers direct harness, his ttop with xfi (1.34) and caspers adapter, and finally his 87 gn(x) with classic fast and precision harness and noticed some weird things.

this is during cold start

first attachment: as you can see with the classic everything is fine, rpm readings and injector dutycyle are in line with what we would expect

second attachment: ttop with xfi and caspers adapter- rpms read 12750 and dutycycle is maxed out for the moment

third: my car- 2.0 with direct harness, notice the rpms jump to 1500 and the dutycycle is maxed at 100%. (as a side note mine would not record an a/f richer then the leanest (15.94) xfi can read untill 3 seconds after the initial crank.

Could this be why we cannot get any xfi to start as well as the classic?? something has to be going on in the background here...

Attached Thumbnails

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ID: 3206

]]> 2013-05-08T02:43:48Z kidglok FAST Product Support Fuel pump loud and voltage drop when hot http://www.cpgnation.com/forum/fuel-pump-loud-voltage-drop-when-8446-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Well I've worked a few bugs out of the new set up. Two remaining issues are fuel pump SCREAMS after driving for about and hour and voltage drops on handheld as car gets warmer. Voltage in cars sytem does not drop. Power feeds for system are not showing low voltage. Feeds all upgraded to 10ga and solid. As far as fuel goes, happens no matter fuel level. Today was 3/4 tank straight flat driving and at idle. Regulator jumping 35 to 45 psi. Could feel a surge in the feed line also. Return line is fed through filler neck so shouldnt be cavitation.
Any opinions? ]]> 2013-05-08T02:37:42Z FAST Product Support boost control question http://www.cpgnation.com/forum/boost-control-question-8445-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= i searched previous post and didn't see any info on this so i apologize in advance if my question is redundant , my question is why doesn't the internal boost controller in the fast 2.0 use 2 control solenoids?....the guy im going to have the car tuned asked me how i have it plumbed/wired and he said i should have a decrease solenoid also ]]> 2013-05-07T23:41:22Z jrailey470 FAST Product Support Ford 351/427 Inglese Injection and XFI 2.0 http://www.cpgnation.com/forum/ford-351-427-inglese-injection-xfi-8444-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= OK here are my problems folks. 351/427 Ford Racing Crate Motor with Inglese Injection 39lb injectors and XFI. We are having issues with it... OK here are my problems folks.

351/427 Ford Racing Crate Motor with Inglese Injection 39lb injectors and XFI.

We are having issues with it idling. What I'd like to make certain is how do I double check the Timing Spark on this set-up. We have a Pro-billet distributor as well as a MSD Digital 6 Plus that controls ignition with the white crank wire.

Any help would be greatful.

Thanks
Miko ]]> 2013-05-06T14:33:56Z MikoPR FAST Product Support poppin out exhaust http://www.cpgnation.com/forum/poppin-out-exhaust-8443-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= im havin a lil bit of a issue. I run a 32v 5.4 mod motor with a classic fast bank to bank set up. I have made a few changes like ported heads and... im havin a lil bit of a issue. I run a 32v 5.4 mod motor with a classic fast bank to bank set up. I have made a few changes like ported heads and stage 3 mmr turbo cams, but and smartfire 120 lbs inj. on e-85. the problem im havin now is when its idling around 14.00 af it have a random pop in the exhaust and some when it starts and rev down it pops an sometimes on deaccel. tried everything thought it was rich and adjusted accordingly but no significant changes. im stump. plus I still haven't quite figured out the idle yet it drops to fast and stall and suggestion would be greatly appreciated thanks. ]]> 2013-05-06T11:59:31Z goldenhp FAST Product Support Prime when starting. http://www.cpgnation.com/forum/prime-when-starting-8442-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi Guy's
Maybe I'm fussing over nothing but after my cars been running (BBC with XFI) for a while & I shut it off, if I go to restart after say 10 mins or so I have to let the fuel pump prime for the allocated 6 secs that I've programmed it for so that it fires straight away, is this normal or is there something I can do to enable me to turn the key on & crank straight away.

Thanks once again guy's for any info.

Cheers Mick. ]]> 2013-05-06T08:15:46Z tuffss FAST Product Support sequential and fuel pump http://www.cpgnation.com/forum/sequential-fuel-pump-8441-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I am setting up a XFI 2.0 on a BBC with a Blower Drive Service electronic fuel injection system. Testing my wiring and I cant get the fuel pump... I am setting up a XFI 2.0 on a BBC with a Blower Drive Service electronic fuel injection system.
Testing my wiring and I cant get the fuel pump relay coil to activate, I am running sequential and I have the fuel pump ground wire, green, to the ground side of the relay but am getting no ground from the ECU.
Key turned on Im thinking the fuel pump should run for a set amount of seconds then shut off for the prime, am I correct here or must I crank the engine.
I was told that the ECU fuel pump ground wire is only for Bank to Bank setup, I hope this is not true as I want the ECU to run the fuel pump. ]]> 2013-05-06T03:37:24Z TOMB1 FAST Product Support 700R4 leaking fluid http://www.cpgnation.com/forum/700r4-leaking-fluid-8440-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi, I rebuilt a 700R4 and installed it in my 72 Camaro. Trans shifts and runs fine with only one problem. After I have driven the car and shut... Hi,

I rebuilt a 700R4 and installed it in my 72 Camaro. Trans shifts and runs fine with only one problem. After I have driven the car and shut it down, it starts to leak trans fluid from the detent cable where it goes into the trans. I have replaced the seal that goes onto the cable but it still leaks. Any ideas? ]]> 2013-05-05T23:58:52Z msavy IRM Numbers EZ EFI http://www.cpgnation.com/forum/irm-numbers-ez-efi-8439-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have one car with 08 and the other with 02. What exactly do these numbers mean. Both cars run fine. Thanks Steve I have one car with 08 and the other with 02. What exactly do these numbers mean. Both cars run fine.
Thanks
Steve ]]> 2013-05-05T23:53:13Z fridgeguy FAST Product Support Thread size queston http://www.cpgnation.com/forum/thread-size-queston-8438-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have the EZ-EFI system with the fuel pump kit in my 72 Vette. I just bought a sump kit and installed it in my factory tank. The kit came with AN... I have the EZ-EFI system with the fuel pump kit in my 72 Vette. I just bought a sump kit and installed it in my factory tank. The kit came with AN -8 fittings and line. I need a fitting to fit the in-line pump. The one that came with the kit is 1/2" to -8 AN. This will not fit.

I think it may be metric, but I am not sure. Does anyone know what thread size the pump has? ]]> 2013-05-05T21:05:08Z Curby FAST Product Support Comp Cam Stage 4? http://www.cpgnation.com/forum/comp-cam-stage-4-a-8437-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hi, I am from Australia and am about to purchase a car which has had a "Comp Cam Stage 4" kit installed. The car is a 2002 Ford Falcon XT with the 5.4L 3v 220kw engine.

Due to the car being on the other side of the country, I am unable to test drive it. Can you please advise if this cam is suitable for daily driving? I can't find any info on a "stage 4" 3v kit on your website.

The other mods on the car are: growler air intake, extractors, exhaust and custom tune. ]]> 2013-05-05T11:03:06Z JTC COMP Cams Product Support fuel cut-off v.s. oil pressure? http://www.cpgnation.com/forum/fuel-cut-off-v-s-oil-8436-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= Hello , Found settings inXFI to cut-off fuel after xxxxrpm , but can you also cut-off fuel if oil pressure drops below certain psi ? So if... Hello ,

Found settings inXFI to cut-off fuel after xxxxrpm , but can you also cut-off fuel if oil pressure drops below certain psi ?
So if something goes wrong with oilpump the XFI takes action.

Thanks for all info. ]]> 2013-05-04T18:33:57Z Dutchrunner FAST Product Support No crank signal on 1 XFI http://www.cpgnation.com/forum/no-crank-signal-1-xfi-8435-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= OK, today I got the car running for the first time which was great:)

However, this was with a friend of mine's ECU as I cannot get my ECU to register a crank or points signal input - or at least the lights on the ECU will not illuminate.
When I swap to the other ECU and leave everything else the same - including the gct file in the ECU then it receives the signals, fires & runs.

So what could be the cause of this? It is clearly an ECU issue.

So it could be a faulty ECU? I cant really see this as it is brand new, but how could I confirm?

Or it is to do with the upgrade. My mate had FAST do he's at the factory, I did mine with an emailed file. How can I test this?

Finally, one more thought from me...is there anything within the pages that need to be changed post upgrade that could cause this? My mates ecu has had all the post upgrade stuff done, where as mine has received the flash upgrade then a tune written for it.

My set up:
XFI 2.0 - upgraded with file
Dash Logger
methanol
Turbo
325lb/hr injectors
MSD 7AL2 Ignition/Pro Power coil ]]> 2013-05-04T18:12:14Z fordpop FAST Product Support suggestions to prevent backfires while cranking http://www.cpgnation.com/forum/suggestions-prevent-backfires-while-cranking-8434-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have been working on my cold start tuning and ended up adding a lot of compensation fuel to keep the engine in a .75 to .8 lamda range with e-85... I have been working on my cold start tuning and ended up adding a lot of compensation fuel to keep the engine in a .75 to .8 lamda range with e-85 while until it reaches 140.
This has kept it from dying and having to restart but it still surges a little until it get some heat in the engine.
I noticed that after doing this it is temperamental at dead cold starts, and can backfire if it does not immediately fire. I have the iac set to 180 for cold starts.
This is a roots blower set up and I need to prevent backfires at all costs.
Is there any way to get the timing steady while cranking if I am using timing trim in my tune up?
I noticed while cranking that timing is jumping around. I imagine the timing trim is causing this while cranking. I am using timing trim to keep the engine from surging at idle.
Any tips to get a roots engine started fast to prevent backfires is appreciated.
It takes 5 to 6 revs to start the car when dead cold.
Regards
Jeff ]]> 2013-05-04T15:57:38Z jeff440sc FAST Product Support Fast ez efi--new install--help with adjustments http://www.cpgnation.com/forum/fast-ez-efi-new-install-help-8433-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I just installed the FAST EZ EFI on a 460 engine I just completely rebuilt for my 78 F150 and I need some assistance with fine tuning this system and... I just installed the FAST EZ EFI on a 460 engine I just completely rebuilt for my 78 F150 and I need some assistance with fine tuning this system and getting it running smooth.

First of all I have had issues with the engine stalling when I let off the throttle. I have the RPM set at 800 (down from 1000 with the carb I had on the engine). The RPM drops to about 400-500 rpm and dies after trying to stay running. Sometimes it will recover and stay running and settle down at 800 rpm.

NOTE: I have noticed that there is an extremely loud vacuum suction noise coming from the hole on the top of the throttle body flange that the air cleaner set on. This hole is about the size of a dime. It is so loud that I can hear it over the engine running while I'm setting inside the truck. I can't believe this would be a normal function of this system. Why is there a vacuum in this hole and what purpose does it serve? Any suggestions on this?

Meanwhile, I have taken readings 4 times now and although everything indicates that the system is functioning properly (the AL & O2 circles are checked) , I have no idea what these live data readings are supposed to be vs. what they are actually reading. That's one issue I need help with; what are the readings supposed to be? I’m not knowledgeable at all with the technical settings of EFI and what things are supposed to be set at. If there was a reading that was way off, I wouldn’t know it even if it was staring me in the face because I have no idea what the reading is supposed to be in the first place. Is there a listing somewhere that can tell me what the readings are supposed to be? I'm listing 3 of the live data readings below and I'm hoping someone can tell me if these readings are off or not and if any of these readings are an indication of why my truck is stalling when I let off the throttle (the 4th reading I did tonight after I made some adjustments and I will list further below after more explanations)....

4/28/13--RPM=800, O2C%=-03, IAC=5, CTS=187, TPS%=00, AF=13.5, MAP=38, BAT=12.8, ATS=70, INJ DC%=02, FUEL LB=06, LOAD%=39, AL & O2 circle is checked. This is the first startup since installation; warmed up to engine operating temp.

4/29/13---RPM=800, O2C%=-06, IAC=39, CTS=182, TPS%=00, AF=13.3, MAP=37, BAT=13.1, ATS=57, INJ DC%=02, FUEL LB=06, LOAD%=36, AL & O2 circle is checked. Drove @ 50 miles then took readings at idle

5/1/13---RPM=800, O2C%=-07, IAC=49, CTS=187, TPS%=00, AF=13.8, MAP=36, BAT=13.1, ATS=76, INJ DC%=01, FUEL LB=04, LOAD%=36, AL & O2 circle is checked. Drove about 2 miles then took readings at idle.

After these three tests the engine still stalls after I let off the throttle. I was hoping that after the ECU did some learning of the engine, it would automatically adjust the settings so it wouldn’t stall, but no luck. So tonight I got out the instruction manual and made some adjustments to the throttle blades, then bumped up the idle to 900 RPM, then recalibrated the TPS. The following are the readings after the adjustments.

NOTE: After adjusting the throttle blades farther open, the extremely loud vacuum noise coming from the hole in the top of the flange went away. I have no idea what this hole is for and why is sucks air, but if I open the blades a little more it goes away. I’m guessing it’s a bypass port in case the throttle blades are closed too much and won’t let air pass by them???? Am I in the ball park with my assumption? Can anyone tell me what this is and why it does what it's doing?

5/2/13---RPM=900, O2C%=00, IAC=5, CTS=187, TPS%=00, AF=13.3, MAP=30, BAT=13.3, ATS=89, INJ DC%=01, FUEL LB=04, LOAD%=28, AL & O2 circle is checked.

A few of the readings are definitely different from the first 3 readings. But after making these adjustments, the truck doesn't stall anymore, however the RPM still drops to about 700 rpm's and then jumps up to about 1200 rpm then settles on 900 rpm. So the idle is still bouncing around, but it's not dying anymore. HOWEVER, now I have another problem after making this adjustment. Now after I shut the truck off and try to restart it, I have to pump the throttle and squirt gas into the throttle body before it will start. I never had to touch the throttle before. And I don't know what to do to fix this problem. I shouldn’t have to touch the throttle at all with a EFI system. Other vehicles I own that has EFI I don’t have to touch the throttle for them to start, so why would I have to do that with this system?

Also, on a side note….As I was reading through the instructions on how to make these adjustments, I noticed a contradiction (at least it seems like a contradiction to me) and I was hoping someone could clarify….On page 21 in the instructions under IAC it states, “Idle Air Control. This is the position of the idle motor. At idle, it will move around to maintain the target idle speed. Displayed in “Counts”. Higher counts mean the idle motor is open more and allowing more air to bypass the throttle blades. Its range is from 5 to 180. Generally, this will be around 20 idling out of gear with a fully warmed up engine”.

On page 23 under the Advanced Options section it states…”It is worth noting that once the idle motor is in its fully closed position (the Live Data display shows IAC at 5), it cannot bring the idle speed down any further no matter what setting is entered here. If this happens, you will need to adjust the idle screw on the throttle body to close the blades more”.

So my confusion regarding the IAC is what should it be reading; 05 or 20???? I’m not understanding this at all and if you look at my live data readings, my IAC reading on the 4 tests I did are: 5, 39, 49, 5.

So given all this info with what I've done and the data readings and the issues I’m still having, can someone help me figure this out?

--What should all the data readings be?
--What should my IAC data reading be set at; 5 or 20????
--Why is there a loud vacuum suctions noise, but after I opened the throttle blades the suction
Noise goes away?
--Why is the RPM jumping around when I let off the throttle?
--Why does the engine stall?
--Why do I now have to pump the throttle to get it to start when I didn't have to before? ]]> 2013-05-03T14:37:55Z 78 F150 FAST Product Support 98 5.7 vortec cam and component part numbers http://www.cpgnation.com/forum/98-5-7-vortec-cam-component-8432-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I have a 98 suburban w/ the 5.7 Vortec. Engine is currently stock and needs some valve work. I would like to upgrade the cam at the same time. ... I have a 98 suburban w/ the 5.7 Vortec. Engine is currently stock and needs some valve work. I would like to upgrade the cam at the same time. Ideally I'd like to not have to do any machine work to accommodate the new cam and components. The truck does a lot of towing in the summer months and it struggles most keeping speed up hill and passing on the highway. Ideally a cam that would help address these issues would be great but any improvement in performance would be acceptable. Future upgrades may include shorty headers, cat-back exhaust and intake.

I'd like parts numbers for a recommended cam and all other components I'll need to go with it. Must be streetable and reliable, this is a daily driver, not looking to make huge power.

Thanks,
Matt ]]> 2013-05-03T14:17:16Z barbosam Tech Support Forums casual or formal http://www.cpgnation.com/forum/casual-formal-8431-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= If you are going for an event,which you will more preffer casual look or formal look..i will prefer teh casual look..what you say If you are going for an event,which you will more preffer casual look or formal look..i will prefer teh casual look..what you say ]]> 2013-05-03T10:57:02Z candy Offroad Talk gen iv 454 marine http://www.cpgnation.com/forum/gen-iv-454-marine-8429-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= i am rebuilding my 454 gen iv all stock ,i just bought a xm 262-12 cam and lifter kit , what else do i need to get to make this work, will this help... i am rebuilding my 454 gen iv all stock ,i just bought a xm 262-12 cam and lifter kit , what else do i need to get to make this work, will this help with increasing my mid range torque? thanks i apperciate any help . ]]> 2013-05-02T18:28:39Z greggmanuel26 COMP Cams Product Support Cam for Vortec V6 Turbo http://www.cpgnation.com/forum/cam-vortec-v6-turbo-8428-new-post.html http://www.cpgnation.com/forum/attachment.php?attachmentid= I'm building a Vortec 4.3L for my 2001 Chevy S10 (balance shaft engine) and bolting on a turbo using stock Syclone exhaust manifolds and front mount intercooling. This is my daily driver and will be a street/strip machine.

Can someone please recommend a good cam for my engine. I plan on running between 14.7-22 PSI once the block is built and broken in. I would prefer to run a hydraulic roller cam and I will have mild port-work done to the heads. ]]> 2013-05-01T21:30:20Z Hellcat1 COMP Cams Product Support How does 16V charging system effect injector voltage offset http://www.cpgnation.com/forum/how-does-16v-charging-system-effect-8427-new-post.html http://www.cpgnation.com/forum/attachments/3202-how-does-16v-charging-system-effect-goodguys-all-american-get-together-camaros Brian, Just recieved my freshly reflashed ECU (XFI 2.0) back, before I reinstall it I have some quick questions, I am running a 16V charging system... Brian, Just recieved my freshly reflashed ECU (XFI 2.0) back, before I reinstall it I have some quick questions, I am running a 16V charging system and have a standard Optima Red top that at static holds 12.2V-12.8V, (key is on, NOT running). After start, it holds steady at 16V on the meter. Where should my injector battery offset be set. I'm thinking "0" + or - ms @ 16V and + ms @ 15V down to 12V. Last two Questions.
1. I was running the basic injector voltage offset "0" + or - @ 12V, and + ms below 12V, could this have prevented me from CLOSED LOOP?
2. Could this charging system have anything to do with my ECU "losing it's mind"?

Just wanted to let you all know how much I appreciated your help and a great product. The Ghia was running clean and mean, can't wait to fire it back up.

Hopefully, the Ghia will be in the next issue of The Goodguys mag, look for "Bad to the Bone" Jim

]]> 2013-05-01T18:36:54Z notfast FAST Product Support Get $3 Off Goodguys Admission Courtesy Of COMP Cams® http://www.cpgnation.com/forum/get-3-off-goodguys-admission-courtesy-8426-new-post.html http://www.cpgnation.com/forum/attachments/3201-get-3-off-goodguys-admission-courtesy-goodguys640.jpg Celebrate the 30th anniversary of the Goodguys Rod & Custom Association by attending an event this season. You can buy tickets at a discounted rate online by using the promotion code: COMPCams during checkout at www.good-guys.com, or simply download the attached coupon and bring it to the gate for a $3 discount off general admission.

Goodguys promotes and produces some of the world’s most dynamic automotive events. Founded by lifelong hot rodder Gary Meadors in 1983, Goodguys is the world’s largest hot rodding association with over 70,000 active members worldwide.

Goodguys events feature thousands of candy-colored hot rods and customs, tricked-out trucks, mighty muscle cars and regal classics sprawled throughout venues including lush fairgrounds, super speedways and large outdoor stadiums.

Goodguys hosts over 20 events annually across the United States.These events range from two-day affairs attended by 30,000 to 40,000 people to three-day extravaganzas attracting over 100,000 auto enthusiasts.

No matter where you live, there is a Goodguys event in your area. Get your tickets today!

Attached Files

Comp_EventCoupon_13 (1).pdf (131.0 KB)

]]> 2013-05-01T16:17:23Z dhodgdon CPG News