depending on where the measurement is taken, I would expect a 30-35% power loss at wheel. so, 10 hp at flywheel vs. 6.5 at wheel. 40-50% loss on four wheel drives. that number could be lower if it is taken on the loaded dyno's.Thanks for the information. So basically, I pull the crimp out of the exhaust and get about 1 extra hp.
Wouldn't the dyno shop monitor cooling temp and tire temp during testing? how long is the process? westechperformance indicated a day of testing. Seems like that would be pretty harsh on the engine with no air flowing.
I would be curious to know what the specs are on the Trofero as they are at 425hp and supposedly only slightly modified from the production engines.
They use giant fans. The process lasts about 5 minutes, if your objective is max torque, hp and top speed. they basically run through all the gears. Of course the actual process is longer including the setup time. adjustments can be made depending on what you see on the curves. more $$$ though.
different ECU program and fuel, lets say 100 octane, can give you a much greater yield on hp. though, you'll never be able to go back to the regular fuel and at $10 a gallon...?? tweeks on the header, exhaust, flywheel, cooling...
again if you can corner better than the guy next to you, 10 extra hp will just be a number.