I am going to c&p what I wrote down below:
The water pump is driven by the crank sprocket, not the crank pulley. The crank continues to turn at the same speed, as does the crank sprocket that drives the water pump, thus coolant flow is not effected. The crank pulley will drive the alternater, ps pump, and a/c compressor. The UDP will replace the crank pulley.
I have been using an UDP on my HRC 2001 PT for ~ 1 1/2 years. No Problems!
__________________
PT powered PT with:
Fully built HRC Turboed 2.4: Wiseco pistons, T2 rods, Port & Polished head (Bob Special) with oversize Stainless Steel valves, #14 Crane Cams, AF/X UDP, No balance shafts, Custom 3\" downpipe, 3\" hi flow exhaust, Ported GT intake manifold, Bored Throttle Body, 30 lb injectors, Water/Alc. injection
|