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-   -   hp figure from 1/8 mile et and mph figures (http://www.hotrodders.com/forum/hp-figure-1-8-mile-et-mph-figures-114953.html)

johnsquicks10 04-29-2007 08:10 PM

hp figure from 1/8 mile et and mph figures
 
just ran the s10 today and i am trying to find a calculator for figuring hp from 1/8 mile et and mph
the truck weighs around 2900#
my time slip
.731 reaction time
60' 2.39
mph 96.7
et 8.82
truck has 4.10 gears and a gov-loc
thanx

Bumpstick 04-29-2007 09:58 PM

http://www.wallaceracing.com/Calculators.htm

Good place to start...

firestone 04-30-2007 09:59 AM

This should give you a rough estimate

8.82*1.57=13.8 in the 1/4

Using an ET calculator, at 3050 lbs (assuming the driver weighs 150 lbs), you would need roughly 230 at the wheels to get a 13.8 in the 1/4
http://www.race-cars.net/calculators/et_calculator.html

Assuming a 20% loss to the rear wheels, that would put you at around 290hp at the motor.

Adam

RHamm1320 05-01-2007 08:54 PM

If that is your 1/8 mph, it up there pretty good. As your 60ft time says, you must have looked like John Force out there spinning the tires :D

Your making alot more hp than your et indicates, traction is killing you.

Here is the calculator http://www.virtualengine2000.com/Calculator.htm

http://www.caliwampus.com/images/dyno1.1.jpg

johnsquicks10 05-02-2007 09:50 AM

thanx for that link, you're right about traction issues it did'nt hook up till about halfway thru 2nd gear. these street tires have got to go. the motor is a 406 sbc with afr 190R heads, roller cam, pro magnum rockers, holley street dominator intake with a holley 750 vac.sec carb. all going out thru hedman
long tube 1 3/4 headers.
i dont know the cam specs or compression. bought the engine from a local machine shop. said they have had it for a while. owner couldnt pay for it, all forged components, head studs. i think it has flatop pistons, but i cant find any specs on the heads. a few racers have told me this truck should run in to the 7's with traction.


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