since im stupid about cars :P and dont know of a way to check hp at the crank... i have some questions. unless im wrong and there is a way to determine this.

acura says our cars produce 260hp at the crank

comptech shows a 32 hp gain for headers on their dyno, aem shows 12 for their cai, comptech exhause 3 hp... etc. etc. etc. but this is all WHP.

how much do you think each of the major mods, IHE, would produce at the crank?

something to get your brains working this morning

 

You have to care about the Dyno numbers not the crank HP...to impress someone dudes... just say... "Yeah, I have some 318 HP under the hood.."

 

i do realize that hp at the wheels is what counts. im just boored and thought id get some people thinking.

 

divide you dyno numbers by 0.77

 

Nashua is a wicked smatt kid! Sorry, just working on my New England accent a little.

 

Ya gotta roll your rrrrrr's.. Try putting a few marbles in your mouth.

 

That can’t be right because it doesn’t compensate for the difference in drive train loss between the 6-Speed and the Auto.

My latest DYNO run showed 240 so I figure with a 15-20 percent Tranny loss I’m looking at 290 to 300 “under the hood”.

Shawn S

 

Shawn,

I think you should be dividing your 240 by .8-.85 because you have less drivetrain loss. Nashua was being specifc to autos I assume (~23% loss) vs your 6-speed's 15-20% loss.

When you divide 240 by .85 (15% loss) you get 282 hp at the crank and 300hp if you divide by .8 (20% loss). My guess with your performance mods that your are probably getting 20% loss of power (considering you dynoed with your chrome 18s). 300hp at the crank sounds right for headers and intake.

A stock auto CLS/TLS usually dynos on average 200 hp which equates to a 23% loss at the wheels from 260 at the crank.