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Tag Archives: FAST LSXRT intake

Displacement vs Back Pressure

After installation of the turbo system on the larger 6.2L, the modified LS3 produced 807 HP and 747 lb-ft of torque. The peak boost pressure on the 6.2L was 6.9 psi, with a peak back pressure reading of 13.8 psi. Bigger motor equals more power equals more back pressure!

Words and Photos: Richard Holdener Unless you have been hiding under a rock for the last decade or two, the hottest thing going right now is the LS engine family. It is hard to believe that it was even possible to replace the original, and wildly successful, Small Block Chevy. After all, the original mouse motor was successful in just ... Read More »