Thread: Upgrading pullys

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  1. #1 Upgrading pullys 
    SE Level Member CoolblueGTP2000's Avatar
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    Can i go to a 3.2 pully on stock gtp without intercooler
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  3. #2 Re: Upgrading pullys 
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    HAHAHAHA!

    NO!

    Use the search bar!
    GPONA #1 Cyber Bully
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  4. #3 Re: Upgrading pullys 
    SE Level Member CoolblueGTP2000's Avatar
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    Where is search bar im new to this site
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  5. #4 Re: Upgrading pullys 
    Killa Bee Scottydoggs's Avatar
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    read this, print it out re read it lol http://www.grandprixforums.net/safel...car-17482.html

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #5 Re: Upgrading pullys 
    GT Level Member RideWithPride's Avatar
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    Oh lord never no nada, i got a stock pulley and my engines already threw rods on 4 dif engines
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  7. #6 Re: Upgrading pullys 
    SE Level Member CoolblueGTP2000's Avatar
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    thanks..... lots of info
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  8. #7 Re: Upgrading pullys 
    Moderator dsmuts's Avatar
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    Stock engine you don't really want to drop pulleys unless you are getting 0* KR Then you could drop down to a 3.6 but you'll likely knock quite a bit on it.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  9. #8 Re: Upgrading pullys 
    GT Level Member fisher580's Avatar
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    after seeing people ask this so many times im just going to say you should be safe dropping to 2.8 on a stock car, as long as the pulley fits who cares LOL
    2001 Grand Prix GTP Coupe - Black-SOLD
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    2006 Grand Prix GXP - That Purplish dark red color
    -FWI, DiabloSport Trinity, and Trans. Cooler - - 6.8 @ 208 mph LOL
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  10. #9 Re: Upgrading pullys 
    GTP Level Member FriboRage's Avatar
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    Quote Originally Posted by fisher580 View Post
    after seeing people ask this so many times im just going to say you should be safe dropping to 2.8 on a stock car, as long as the pulley fits who cares LOL
    I think 2.8 actually wont fit, doesnt the snout of the blower have to be machined to work a 2.8?
    --------------------------------------------------------------------------------
    2004 Grand Prix GTP Comp G: Intake, F+R plogs + downpipe, 1.7 YT Rollers, Overkill, F-body front brakes, drilled/slotted r1 concept rotors.
    Sport Edition Kv5 18x8
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  11. #10 Re: Upgrading pullys 
    GrandPrix Junkie
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    Quote Originally Posted by FriboRage View Post
    I think 2.8 actually wont fit, doesnt the snout of the blower have to be machined to work a 2.8?
    Machining necessary for anything below 2.8
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  12. #11 Re: Upgrading pullys 
    GT Level Member fisher580's Avatar
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    i thought it was 2.7 or lower but i could be wrong, so lets say a 3.0 on a stock car LOL
    2001 Grand Prix GTP Coupe - Black-SOLD
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    2006 Grand Prix GXP - That Purplish dark red color
    -FWI, DiabloSport Trinity, and Trans. Cooler - - 6.8 @ 208 mph LOL
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  13. #12 Re: Upgrading pullys 
    Moderator DanPrixGTP's Avatar
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    Machining the snout is required anything below 2.7

    im pretty confident on that.

    So i say, machine the snout, run a 2.55 on a stock car.
    '97 GTP - Stage 2 Heads, 90# Springs, 1.9 Harland Sharp Rockers, Gen V, 3.0, Intake, N* TB, LQ4, FSIC, 10.5mm Wires, Poly Mounts, SLP Headers, Borla Exaust, Built Trans - SOLD*

    '08 G8 GT - 6.7L 408CI Stroker, 239/254 Cam, Fast Intake, 102mm TB, CAI, Full Exhaust.





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  14. #13 Re: Upgrading pullys 
    GT Level Member fisher580's Avatar
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    or maybe twin charge at 25 psi from turbo on a stock car, maybe change plugs all will be well
    2001 Grand Prix GTP Coupe - Black-SOLD
    -SOLD
    2006 Grand Prix GXP - That Purplish dark red color
    -FWI, DiabloSport Trinity, and Trans. Cooler - - 6.8 @ 208 mph LOL
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