Quote:
Originally Posted by PETESGT  yep I get what your saying.
So go with the bigger blower and just tune it down is the bottom line? I'll just pay cash for the blower, get the 2.2 and then leave "the door open" if I need to take a loan against the car to replace the engine or something to that effect if things get out of control |
With the larger blower, you use a larger pulley to reduce the speed of the blower. Remember, a positive displacement blower pushes a set amount of air with each rotation. The larger blower won't have to work as hard to push a certain CFM rating of air as a smaller blower would. This helps most when you put the smaller pulley on the blower to increase air flow.
Boost is just a byproduct of the engine resisting the air being forced through it. Both blowers are forcing the same amount of air through the engine when you pulley them to 9# of boost. The larger blower isn't heating the air as much because it is running at a lower speed.
Just remember that free flowing inlet and exhaust will make little increase in horsepower if you don't increase the CFM of air. You will make the engine breathe better, but your gains will be mostly from the lower inlet air temps due to less restriction. This is only true on a P/D blower though.
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"Ignore that whistle, it's just a vacuum leak."
2000 Mustang GT:
Saleen Series IV Twin Screw, Chicane I/C, AFCO Extreme H/E, 2.8" pulley, FMS 42# injectors, Dual Catted 2 1/2" UPR X Pipe, UPR LCAs/UCAs, 2 1/2" Flowmaster American Thunder kit, 90mm LMAF, 112" Goodyear Gatorback, Kenne Bell BAP, Mosaleen idler, T-56, Detroit TrueTrac w/ 373s, Demolet 100mm CAI, SCT XCal2 with JDM Engineering 93 Octane "Race" tune.
