Originally Posted by amoosenamedhank
You've got this backwards. You don't take Ford's stated engine output and divide by your whp. All that shows you is the difference between Ford's stated number and what you're seeing to the wheels.
There is no way in flying pig shit heaven this car is only experiencing 7.5% parasitic loss through the drivetrain. If these cars are truly dynoing in the mid 140's stock, all that shows is Ford is underrating them from the factory.
How can you say I have it backwards? I haven't shown math. Show me math that states it is 200hp crank?
160 crank horsepower.
148whp = 7.5% parasitic loss.
175whp a the same parasitic loss of 7.5% means the car is making 190 crank horsepower.
Unless you pulled the motor and dynoed the stock crank horsepower, those are the only numbers we have to go on. Yes we all know that the stock motor is probably underrated, but we have no way of proving it, or how much. These are the facts. It should also be noted that GTIs with DSG have far less parastic loss than a traditional automatic, hence the better fuel economy, (and better than manual GTIs). Using that logic a DCT should have less parasitic loss than a manual.