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  #1  
Old 03-24-2008, 07:41 PM
grandprix00 grandprix00 is offline
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Question ? about supercharger pulleys

how much power do u get from droping sizes does anyone rly know what the gane is rly?
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Old 03-24-2008, 07:53 PM
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grandprixgtx00 grandprixgtx00 is offline
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Re: ? about supercharger pulleys

haha, that scared me...i was like wtf?? i didnt post this, but then i looked and it said grandprixgt00 not gtx00 WOW

to answer your question, when you drop pulley sizes you also need to do support mods. you also didnt mention what year and such GP you have? I'm assuming your not reffering to your '00 GT??

as long as you have a '97-'00 GTP/GTX you will want to go w/ the 3.4, this is your best option

for support mods you will want to do a Ubend delete, CAI and PCM upgrade at the least. may also want to look into colder plugs

w/ a 3.4 pully, and proper support mods, you should see about a 15-20 HP increase

edit* nvm, just noticed your user name is grandprix00 MY BAD! gimme a break, its been a long day
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Old 03-25-2008, 08:42 AM
grandprix00 grandprix00 is offline
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Exclamation Re: ? about supercharger pulleys

well i got is a " 2000 grand prix gt" zzp supercharger kit 3.5" pulley 42.5 injecters short stack intercooler zpp gt cam zzp alum roller rockers 1.95 with push rods zzp 2.5" downpipe with magnaflow car magnaflow mufflers oh yah zpp racing tranny so yah kinda got alot of mods to support a 3.25 the lowest u can go for a ss supercharger kit i was just wondering how much more power ill get from switching.
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Old 03-26-2008, 11:54 AM
GTPpower GTPpower is offline
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Re: ? about supercharger pulleys

Your mods aren't right. You can't run 1.95 rockers with a cam. WAAAAAAAAAYYY to much lift.

Instead of dropping pullies, I'd recommend installing a set of headers. With the higher compression that a GT engine has, you cannot run the same pulley as a GTP. You are probably at the smallest pulley you can handle.
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Old 03-26-2008, 02:58 PM
grandprix00 grandprix00 is offline
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Re: ? about supercharger pulleys

well i just got a stage 1 gt cam nothing too big probably lowest step up from stock cam wont it be alright?
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