Underdrive pulley?
udp
An average of 2.7 HP is gained from every
pound lost off the crank shaft. 85% of the gains are from weight loss.
The rest of the gains are from underdriving, which accounts for
about 15% of the total gains. These pulleys do not push underdriving
for two main reasons. The first is to keep
charging systems, air conditioning, power steering, and water pumps moving fast
enough for every day driving. Second, not much horsepower is gained from extreme
underdriving. All of the underdriving is done with the crank pulley, not the
accessory pulleys. This is done so maximum weight loss can be achieved at the crank where most of
the horsepower gains are found
-Custom Maxima
pound lost off the crank shaft. 85% of the gains are from weight loss.
The rest of the gains are from underdriving, which accounts for
about 15% of the total gains. These pulleys do not push underdriving
for two main reasons. The first is to keep
charging systems, air conditioning, power steering, and water pumps moving fast
enough for every day driving. Second, not much horsepower is gained from extreme
underdriving. All of the underdriving is done with the crank pulley, not the
accessory pulleys. This is done so maximum weight loss can be achieved at the crank where most of
the horsepower gains are found
-Custom Maxima
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