Here, the dyno shows a 0.7 horsepower and 5.1 ft/lbs torque difference
between the stock crank pulley and a Hypertech Power Pulley. This produced an average gain of 4.4 horsepower
and 5.8 ft/lbs torque. Remember, average numbers count too, as that is your area under the curve. Check
out the Dynojet Race Routine between the stock vehicle, the K&N
equipped car and the Power Pulley equipped car.
Note: All runs were performed with the car at approximately 180 degrees at the start of the run.
Again I could not feel a power increase in acceleration, but the engine is much
more responsive in neutral and when blipping the throttle for downshifts. I makes the engine respond to throttle
much quicker. Also, by turning the accessories slower, I am actually saving wear and tear on the alternator, a/c
compressor, air pump and power steering pump. The power steering pump on the fourth generation cars is a reverse
flow design that is very expensive and is also succeptable to overheating from sustained high RPM use. See my power steering cooler installation to see how to help remedy
the problem.