Weight loss and et.

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by jody stroud, May 2, 2017.

  1. jody stroud

    jody stroud ZOMBIE Top Dragster

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    Anyone have any data on what a 30 to 50 pound weight loss will do to the et of a sub 4 second ( 1/8 mile ) car ?
     
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  2. aj481x

    aj481x Member

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    If weight change doesn't affect traction etc. will change about 1 100th of sec. per 10 lbs. Weight loss many times can be the cheapest and easiest way to go faster.
     
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  3. KZ5 Blown SBC

    KZ5 Blown SBC Member

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    In a 1000 hp car .01 is the normal but In a 3000hp car I find that hard to believe I have always wondered the same thing jody. I think it's more like .01 for every 20 lbs. So El General still going too kick there ass lol
     
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  4. aj481x

    aj481x Member

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    My error, our data was for 1/4 mile.
     
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  5. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    I have no scientific data, but I think 100 lbs is worth roughly .05 in the 1/8. Maybe more once the tune up is optimized for the lighter weight, as it's easier to accelerate a lighter car without getting into shake/spin. I think it's worth .07 in 1/4.
     
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