k what the ratio between them, like for example if u had 160whp then your motors hp would be more, like 180 or 190 right?
anyone know the ratio or something... i just wanna know.
k thx.

 

it's usually 15-20%

 

I usually use 15%. A GSR at 170 hp is right around a 15% drivetrain loss if it dynos at 145 whp.

 

well every engine is going to dyno differently. i've seen 160whp bone stock gsr's. :loco:

 

Oh yeah, no doubt. On average, one should expect ~145 whp out of a GSR. There are factory freaks and duds out there too.

 

This ratio will work for pretty much all fwd / direct drive vehicles. You will how ever notice a way different ratio with much more loss of power when you are using drive shaft. Like in say a mustang's / camaro's / ect. where you have engine in the front with rear wheel drive connected via drive shaft. There is a lot of power loss there.

 

You are thinking about it wrong. There is no ratio. All cars have power losses due to friction. That's why we have dynos. You never know what your car is putting to the wheels until you dyno it. With that said, for our cars, it's usually about 15-20%.


*I can't recall exactly, but I think only like 20% or something of the energy stored in gasoline actually makes it to the wheels. Food for thought.