How can you determine REAL horsepower?
 

I see heat play a big role, altitude and cold air but what is the real hp for cars and the 0-60 times? I remember posting the 92 SSEi Road & Track page and the 0-60 in 9.0 sec was wrong, so what is it? Also is 240hp the right hp and 6.6 0-60 right for a stock GTP?

well, f/i cars tend to run much better when its cool and dry... the only problem is when it is cold, traction is much more limited... say on liek an 80 degree day i run a 15.0 @ 93 with a 2.2 r/t. on a 50 degree day, you may see .1- .2 quicker, but at maybe 95.5, with a 2.4 r/t.



hmm, none of that really has anything to do with what you asked.... sorry!!! :roll:

:lol: Thats what I was talking about. How can you actually get the truth on hp? Its seem as if its an estimate. All about the weather. That means the maybe bonnies have either more or less hp than what they say?

Calculate HP From ET and Weight
HP = (Weight / ((ET/5.825)^3))

Calculate HP From MPH and Weight
HP = (((MPH / 234)^3) * Weight)

horsepower = mep x displcement x rpm / 792,00

taxable horsepower = bore2 x cylinders / 2.5

weight transfer = weight x cg height / wheelbase x g

lateral weight transfer = weight x cg height / wheel track x g

:twitchyellow:

:lol:

Short-circuiting there??

Thanks, Jim. Those formulas will probably land you within 5%. They're well established and proven.

There are some Java calculators out on the web for this information Steve! :lol:

Makes it easier ;)

what does ET stand for, estimated time?

help me out here

http://www.geocities.com/entity05/java/myjava.html

Engine dyno to be exact. Wheel dyno + the knowledge of your drivetrain loss will get you close. Track time and the formulas above will help as well but there are alot of variables with track time (humidity, temp, launches, etc...)