Thread: what pulley can i drop to with each option

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  1. #1 what pulley can i drop to with each option 
    Donating Users nascartech's Avatar
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    ok so i am looking at getting a ic or meth and wanted to know what size pulley i can run with each setup so right now i have headers 3.5 cone filter 104s 180 tstat and i have 42.5 injectors but not installed so withh a ssic what size and what size for a full size ic, and what size if i run meth. thanks
    01 GTP is3 cam 130 springs double roller 60lb injectors lq4 maf headers 4000 stall lowered
    sold 97 GTP stock
    Sold 2001 gp gt ssm90 plog dp 3.8 208 whp 265 at the crank 14.8 1/4
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  2. #2 Re: what pulley can i drop to with each option 
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    i was thinking of just a 3.25 or 3.3 with all 3 options except the ssic i wouldnt do 3.25 is this right oh and i dont have a tune but i do have a ls1m scanner
    01 GTP is3 cam 130 springs double roller 60lb injectors lq4 maf headers 4000 stall lowered
    sold 97 GTP stock
    Sold 2001 gp gt ssm90 plog dp 3.8 208 whp 265 at the crank 14.8 1/4
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  3. #3 Re: what pulley can i drop to with each option 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    maybe 3.2, 3.25.

    Really comes down to how the car likes it and how the tune is.

    SMGPFC Member #1
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  4. #4 Re: what pulley can i drop to with each option 
    GXP Level Member boostedcompg's Avatar
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    Gonna need a tune with those mods....fo sho
    04 comp G, front/rear towerbraces, pacesetters, ported sc, LIM, 3.3 pulley, 1.9 mod rockers, Ls1 springs and retainers, custom dyno tune, 180 tstat, shortned dog bones, full poly mounts, zzp shift kit, custom fwi, 28inch cherry bomb, flowmaster 40's. 290whp 380wtq before the button. coldfusion n2o, 60 shot. I haz corvette brakezand gxp cluster! smgpfc028
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  5. #5 Re: what pulley can i drop to with each option 
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    if i did get a tune it would have to be canned no one has a tuner around here
    01 GTP is3 cam 130 springs double roller 60lb injectors lq4 maf headers 4000 stall lowered
    sold 97 GTP stock
    Sold 2001 gp gt ssm90 plog dp 3.8 208 whp 265 at the crank 14.8 1/4
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  6. #6 Re: what pulley can i drop to with each option 
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    I think you will be able to run a 3.2 with those mods pretty comfortably. Some guys are even able to get down to a 3.0 but would be running less timing and mostly not worth it.

    The above is with a custom tune. With a canned tune it's kinda up in the air but some guys on here or other forums could get you pretty close if you have a wideband and some way of seeing KR.
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  7. #7 Re: what pulley can i drop to with each option 
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    ya i have a ls1m which reads kr fuel trims lt ft injector duty all that and it alows me to log
    01 GTP is3 cam 130 springs double roller 60lb injectors lq4 maf headers 4000 stall lowered
    sold 97 GTP stock
    Sold 2001 gp gt ssm90 plog dp 3.8 208 whp 265 at the crank 14.8 1/4
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