I think it's on average 12-13%, manuals are typically 15% but hondas are either very efficient or underrated. That is how i know it. correct me if i'm wrong.

but some guy thinks it's 20%. and we are having a little debate..

 

I think it is between closer to 15%. The bonestock GSR dynoes I have seen average ~143whp which is ~16% loss. And I thought that most Si's dyno bonestock in the upper 130's which would be ~15% loss also.

I don't have a bonestock dyno on my GSR, but I did dyno with only that intake resonator box in the fenderwell removed (otherwise bonestock engine and with heavier wheels and tires) and then I got 149.4whp (~12%loss). So if all the Hondas came without the resonator and therefore sucked in colder air, then they could be considered to be underated or have very, very efficient drivetrains.


[Modified by red97gsr, 8:09 PM 9/15/2001]

 

I always thought 17%. Were all pretty close here.

 

Yea...13~17 seems about right.... As far as 20% naw that more like VW/AUDI drive train loss .they suck power

 

On my stock Teg GS, I dynoed at 117 whp and the car is rated at 140 to the flywheel. That is a 16.5% drivetrain loss.

 

Would it be possible to gain a little by changing to a lighter aftermarket flywheel?

 

I dynoed my 96 GS-R, 52K miles

akimoto filter on a stick
18 degrees advanced ignition timing
greddy SP catback

consistant peak 148 hp to the wheels, 117 torque. Warm and muggy Houston day, car needs valve adjustment, spark plugs, fuel filter.

I'm happy.