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LS1 vs LS4

This is a discussion on LS1 vs LS4 within the General Help forums, part of the LSx Technical Help Section category; These new front drive LS4 motors are basically putting out the same HP numbers as the LS1 motors with less ...

  1. #1
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    LS1 vs LS4

    These new front drive LS4 motors are basically putting out the same HP numbers as the LS1 motors with less displacement. How are they doing it? Compression? Cam? Tuning?

  2. #2
    Story of My Life!! BIG D's SS's Avatar
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    Black, Blue
    07 TBSS, 07 GSXR1000

    They are claiming flywheel hp. Most LS1's are putting down what they claim to the ground.

  3. #3
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    2002 Z06

    Yeah.. Gotta watch out for that. All the manufactures are going to claim flywheel horsepower not wheel power. That why everyone talks about GM under rating the f-bodys at 300-315. Because when we dyno we get that or more at the wheels stock.

  4. #4
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    wish i did. and i've been on three different dynojets.

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