pulleys for looks or for power

reignman · 11-11-2002, 10:59 AM

just a couple of questions first off this may sound a little dumb but pulleys are the things that qull the belt right. adn if so by replacing them with aftermarket pulleys is there really a horsepower gain or is more for looks

briand · 11-11-2002, 11:17 AM

the pulleys are for a power increase. what it does is kind of like changing gears on a 10 speed bike. the crank pulley is reduced in size and the accessory pulleys are increased in size to rid the motor of some drag of the accessories. it is one of the greatest bang for the bucks, but expect to do a little charging and cooling work on your car

ChunkFunky · 11-11-2002, 11:58 AM

I'll add.. that you can replace pulleys for both reasons.... as the reason stated in the last post, you can gain some power by effectivly making it easier for your engine to drive all the other accessories... but again like that last post stated... it makes your accessories spin slower... wich means, your water pump will be slower and your altenator.. on a stock car, it's a nice boost... but if you have a big stereo... you might find that the alternator cant keep up.. just keep that in mind...

but while you're replacing pulleys for power, you might as well get nice shiney billet ones.. or whatever tickles your fancy.... you can get them in just black too... if you like to keep the engine compartment alittle more LOW profile...
-as

11-11-2002, 10:59 AM	#1
reignman Registered Member Join Date: Oct 2002 Location: cincinnati ohio Posts: 24	pulleys for looks or for power just a couple of questions first off this may sound a little dumb but pulleys are the things that qull the belt right. adn if so by replacing them with aftermarket pulleys is there really a horsepower gain or is more for looks __________________ 92 Lx Flowmaster pipes, but no other mods 110,000 miles rookie mustang owner

11-11-2002, 11:17 AM	#2
briand Registered Member Join Date: Mar 1999 Location: Jackson, LA Posts: 264	the pulleys are for a power increase. what it does is kind of like changing gears on a 10 speed bike. the crank pulley is reduced in size and the accessory pulleys are increased in size to rid the motor of some drag of the accessories. it is one of the greatest bang for the bucks, but expect to do a little charging and cooling work on your car __________________ GT-40X heads(58cc), Cobra upper and lower, 75 mm Bullet, Moroso fenderwell induction, FRPP 65mm TB, 24# injectors, black magic electric fan, phenolic spacer, 1.7 crane cobra roller rockers, crane 2031, BBK 1 5/8 equal length hearders, 2.5 inch off road pipe, 2.5 flowmaster catback, FMS 3.55 gears, T5-Z transmission, FRPP aluminum driveshaft, svo heavy duty clutch, mcleod bullet proff bellhousing, BBK adjustable cluth quadrant, hurst billet shifter, lakewood subframes, BBK strut tower brace, BBK 2pt lower cross bar, FMS 190 lph fuel pump, crane ps91 coil, FMS street pulleys, and 300+ race wires. All thanks goes to my wife sheri, jason, jeff, robby, my dad and all others you helped contribute. most importantly GOD!!!

11-11-2002, 11:58 AM	#3
ChunkFunky Registered Member Join Date: Apr 2002 Location: Tustin, CA Posts: 465	I'll add.. that you can replace pulleys for both reasons.... as the reason stated in the last post, you can gain some power by effectivly making it easier for your engine to drive all the other accessories... but again like that last post stated... it makes your accessories spin slower... wich means, your water pump will be slower and your altenator.. on a stock car, it's a nice boost... but if you have a big stereo... you might find that the alternator cant keep up.. just keep that in mind... but while you're replacing pulleys for power, you might as well get nice shiney billet ones.. or whatever tickles your fancy.... you can get them in just black too... if you like to keep the engine compartment alittle more LOW profile... -as __________________ '89 GT Convertible: TFS TW Heads, TFS Street Intake, TFS Stage 1 Cam, FMS 1.6 RRs, 24# Injectors, Pro-M 75mm MAF, No Name CAI, 3.73s, O/R H-Pipe, FlowMasters, AOD w/ Trans-Go Shift Kit

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