How much horsepower does your main car have?

[ShawnD1]

Theoretically 255 bhp and 220 lb/ft. I've never dynoed it and I'm sure I never will, so all I can do is take the manufacturer's word for it.

They measure that at the crank. On the dyno it would be probably 10-20% lower. Depends on a few things. A car with full time AWD will expect to have higher drivetrain loss. Automatics have more loss than manuals.

I should look for graphs. It would be nice to pin down hard numbers as to how much extra loss one arrangement has over another.

edit
seems like nobody ever took the time to actually test what the loss is for automatic vs manual transmissions. assumed numbers are 15% for manual and 20% for automatic, but a dyno chart for a stock honda civic shows only 10% loss. it is a mystery.
image. dyno says 180, engine is rated for ~200hp.

 

[arcenite]

430rwhp/390rwtq cam/intake/header/tune LS2 GTO

Knockin' on 500hp's door at the crank. And for a DD, that's more than enough for me.

Thinking about getting a bottle for the track though. Have to convince the fiancée that I need it.

 

[KIAman]

Theoretically 255 bhp and 220 lb/ft. I've never dynoed it and I'm sure I never will, so all I can do is take the manufacturer's word for it.

Same. Although the VTEC stickers on mine adds another 200hp.

I've seen dynos on stock E90 330i in the range of 230hp/205lb at the wheels with stick. Auto probably reduces that to 220hp/200lb but has a higher rear differential to make up the difference.

 

[ShawnD1]

I've seen dynos on stock E90 330i in the range of 230hp/205lb at the wheels with stick. Auto probably reduces that to 220hp/200lb but has a higher rear differential to make up the difference.

How does a higher rear differential compensate for horsepower lost in the transmission?

 

[Estrella]

NO one has a riding mower as their main car? Damn.

 

[arcenite]

How does a higher rear differential compensate for horsepower lost in the transmission?

It's quite common for autos to have higher rear gears than manuals for the same model, but not for the reasons stated; but you know all of this.