I have a 06 TL. I have a K&N CAI....just bought a ATLP JPIPE, and Comptech cat back.

They all state wheel horsepower. I am wondering how to calculate the WHP to HORSEPOWER so I can add this together to see what my TL is pushing in engine horsepower if that make sense lol

Stock 06 Acura TL = 258 HP/233 TORQUE

ATLP J PIPE= ????WHP

Comptech Catback Exhaust= 8HP

 

Depends on whether you're 6MT or 5AT. A solid benchmark for the 3G 6MT Base is TOV's 222 whp reading on a Dynojet.

222/258 = .8604, or roughly 86% of horsepower is making it to the car's front wheels, for a 14% drivetrain loss.

So if a given exhaust is making 8whp on a dyno, you'd go the other way and divide 258 by 222 to come up with a conversion factor of ~1.162. Now multiply your 8whp by 1.162 and you end up at roughly 9.3 for the crank estimate; not really a huge difference.

Not sure where to start on the 5AT, maybe 212whp? Then, dividing 212 by the same 258, you're at .82 or 82%, or an 18% drivetrain loss. Then your multiplication factor would be 1.216 for a crank estimate of 9.7

Make sense?

 

You want higher numbers go on a dynojet. Mustang/Dyno Dynamics are the two I prefer. As the previous dude mentioned transmission has a big thing to do with it...along with climate and how well you maintain your car. Those are also things to consider to what power level you are on. No one can give you an exact number.

 

I just want to roughly know what my car is pushing. Example 300 HORSE power?

It's an automatic.

 

its not going to be 300 but nice try...hey we're in the same boat

 

It might not be 300, but I am trying to get close, and that is why I am wondering what I will be at after all these mods

 

You can't just add all the stated HP together, it doesn't work like that.

This is the best thread to get an idea of the WHP you get with various bolt on mods:

https://acurazine.com/forums/showpos...97&postcount=1


Rough calc is to take ~18% for DT loss. So if WHP is 220, crank HP is roughly (very roughly) 220 / .82 = 268.

 

I like crank hp lol.

My bone stock 5at made 210hp (209.8) at the wheels. It's rated at 258 at the engine.

81% of the power made it there for a 19% loss. Not bad for an auto.

Keep in mind as power levels go up, so do drivetrain losses.

I think the 602rwhp I put down was in the neighborhood of 760ish hp so I'm losing roughly 21% which is still extremely good at this level.

I feel sorry for the turbo TLs. I have a feeling they're in the 25% and greater drivetrain loss due to the TL's inefficient torque convertor.

My math sucks but I believe 243 at the wheels in an 5at should be about 300 crank hp. 300x81%.

Oddly enough, 258whp should be close to 300 crank hp on a 6mt.