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