Fuel Economy EZ EFI

fridgeguy · #1 (**permalink**) 07-29-2010, 02:53 PM

Well, I finally did a fuel mileage run in the Camaro. Its got a 465 hp 470 tq 383 with a 4speed and 3.08's. I got 22.5 mpg on a 90 mile trip, 90% highway, average speed moving was about 60 mph and total average was about 55 mpg with a 5 min stop with the engine off. This was an west/east trip so I had a head wind going and a tail wind on the way back. My highway speed was 70 mph, give or take. I also nailed it a few times too. The best I ever got with a carb was aprox 18 mpg driving it very easy.

69sixpackbee · #2 (**permalink**) 07-29-2010, 04:37 PM

You're one of the lucky ones. I still get 10 MPG in my 402/4spd '72 Chevy pickup.

Great!

FAST Tech Maxwell · #3 (**permalink**) 07-29-2010, 08:20 PM

Thanks for posting, fridgeguy!

Did you change up the AF Targets or Acc Fuel any?

fridgeguy · #4 (**permalink**) 07-30-2010, 12:06 AM

Originally Posted by FAST Tech Maxwell

Thanks for posting, fridgeguy!

Did you change up the AF Targets or Acc Fuel any?

idle is 14.4
cruise is 14.4
wot is 12.8

accel shot is zero. I tried going up and down but tended to get a bit of a stumble.