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Drag Racing Discuss Drag Racing here be it dirt or tarmac. Sponsored by Sydney Dragway.

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Old 09-07-2008, 01:23 AM   #1
fpv608
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Default calculating rwkw ?

Guys, anyone know what the formular is calculating what rwkw the car is running at the end of the 1/4 mile.

eg. 13.4 @ 108 mph = ? rwkw

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Old 09-07-2008, 07:37 AM   #2
Charliewool
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There's plenty of trap speed/ HP calculators online...
Here's one from Atomic's site.
http://www.atomicperformanceproducts.com/calc.htm
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Old 09-07-2008, 09:33 AM   #3
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Quote:
Originally Posted by charliewool
There's plenty of trap speed/ HP calculators online...
Here's one from Atomic's site.
http://www.atomicperformanceproducts.com/calc.htm
Looks way off to me,what they have as rwhp actually matches the moroso slide rule for engine hp..

You cant use rwhp for 1/4 et/mph simply because chassis dyno's are very inconsistant,and alot of times a total crock..
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Old 13-07-2008, 11:47 AM   #4
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I like that calcualtor, it makes mine have way more power than it does. haha

It says my car is making 573 rwhp, when it makes 410-440?
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