Join Date: Jun 2007
Location: Massillon, OH
Thanked 166 Times in 142 Posts
The only advantage I can see would be faster warm-up cause you could have it off and not circulating the coolant......you could block off the bypass hose and drill a small pressure relief hole int he T-stat and that would aid in warming up. I see no other use on a street truck....on a full race motor same would apply as with a drag car....lees accessories driven off the crank will make more power....but it's a minimal gain and only if you are searching for that last increment of HP would I do it on a street driven motor. I have a friend with a Stroker 340 that did a rear wheel dyno test with only the WP swap....there was a 5hp difference at the rear wheels vs the crank driven pump.
98 2500 4x4,12V,47RE Suncoast Billet input shaft, Suncoast H/D Extreme Trans kit, Goerend Triple disc converter, FASS 150/90, FASS Suction tube, Amsoil Ea air and pre-filter, 100 plate, 4K GSK, 370's, AFC Mods, CoolerTubz intake, straight piped 4" DP to 5" stacks, BD-SBS, Autometer Z-series Pyro/Boost/Trans/FP, Amsoil Bypass system and Amsoil fluids bumper to bumper.