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how much crank hp does my car make?


pontiacfreak142

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dumb question, i know. I have a guy that is interested and wants to know how much power the motor makes. I know there is no way of getting an exact awnser short of putting it on an engine dyno, but i figure i would get a few guesses from people that might have a good estimate. The car put down 225 whp and 230 tq through a 4l60e trans with a some what loose 3500 stall, 1 piece steel drive shaft, torsen posi unit with 4.10 gears.
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I'll need to know if you actually want to race or not. Because it kind of goes like this:

 

- if you want to race, then you take whatever you say your car makes and add 200hp to it

 

- if you don't want to race and instead just want to hang out in a parking lot and talk, then you take whatever you say your car makes and subtract 200hp

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I'll need to know if you actually want to race or not. Because it kind of goes like this:

 

- if you want to race, then you take whatever you say your car makes and add 200hp to it

 

- if you don't want to race and instead just want to hang out in a parking lot and talk, then you take whatever you say your car makes and subtract 200hp

 

i do race lol

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Actually its hard to judge an automatic car on a rear wheel dyno because of converter slip. Only way to get a rough estimate is to run it at the track and use the numbers there to back figure.

 

look up wallace racing calculators and plug in your numbers

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Actually its hard to judge an automatic car on a rear wheel dyno because of converter slip. Only way to get a rough estimate is to run it at the track and use the numbers there to back figure.

 

look up wallace racing calculators and plug in your numbers

 

Thats where I git the 265ish

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yeah, it can be deceiving with an auto. my cobra laid down 580 rwhp with the previous tune and a 6 speed. i just had an automatic intalled and the car laid down 520rwhp with no other changes---same a/f ratio all the way across the board, same fuel parameters, same boost. quite a bit is lost through the torque converter. i haven't driven the car yet, so i can't comment on whether it feels faster or not
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