Originally Posted by hatchbuilder
yeah, and that is reading a bit low too by about 10whp. Most STis dyno at about 250-260. So to have a low reading dyno and then read the factory BHP at the wheels isn't right.
I think it's pretty accurate, 75,000 km on the car and it was extremely hot that day by our Alberta standards. 39 degrees celsius I believe with 30-40% relative humidity. 20% drivetrain loss on a stock vehicle seems reasonable as well.