Accessory Drives
Peterson Fluid Systems drives are precision CNC machined from high quality billet aluminum & steel. Our Gilmer, HTD, and V-Belt pulleys are machined from aluminum and then hardcoated to resist wear. Our drive mandrels and hardware are precision machined from the best materials and offer versatility for almost any application. We also offer the finest rubber drive belts in Gilmer and HTD in all of the popular sizes.
Drives Kits Oil Pump, Water Pumps, Alternators
Accessories Mandrels, Spacers, Bolts, Belts, Washers
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Peterson oil pumps are a positive displacement pump as are most of our competitors pumps. This means that if you turn the pump slower it pumps less volumeand if you turn it faster it pumps more volume. Most pumps have a maximum RPM that you can turn them. Typically, pumps turn from 50% of engine speed, as is the case of cam driven pumps, to 57% of engine speed in the case of our standard belt driven pumps. However, ratios of up to 70% have been used. Peterson Fluid Systems produces pulleys of different sizes (tooth count) so that the pump speed can be adjusted to a praticular engine. Ideally the pump will turn just fast enough to satisfy the engine need and keep the oil pressure up without the need of bypassing oil. It takes horsepower to drive a pump andthe faster you turn it, the more volume it pumps and the more horsepower it takes. It doesnt make sense to pump volume that goes through the relief valve. On small displacment engines with less oil need, it is not uncommon to slow the pump to 45% of engine speed. If you know what your engine requirements are, in GPM of oil, our tech people can help you determine a pump speed, for Peterson pumps, that will not rob horsepower.