Horse Power not ET Correction Charts???
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Joined: Nov 1999
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From: Elizabeth, Colorado
Car: '94 Corvette
Engine: LT1
Transmission: 4L60E
Horse Power not ET Correction Charts???
Does anybody know of any Horse Power Correction charts dealing with Altitude.
Let say I pull 207HP at 6400 feet (lets say thats also the density alt.), at the rear wheels with a 4L60E.
Is there a formula for transforming that into rear wheel HP at sea level (again well call it 0 feet density alt).
Thanks,
Ron
Let say I pull 207HP at 6400 feet (lets say thats also the density alt.), at the rear wheels with a 4L60E.
Is there a formula for transforming that into rear wheel HP at sea level (again well call it 0 feet density alt).
Thanks,
Ron
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
You need some dyno software to calculate how much hp is lost as the altitude does up.
Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
MPH and HP are generally considered to be related. So, take the NHRA MPH altitude correction factor and apply it to your dyno results.
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