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Thread: Pulley Downing Question?

  1. 09-04-2007 03:31 PM #1
    Ramsey
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    Pulley Downing Question?

    You Can See My Setup ,after I Put On The A/w Intercooler I Lost Some Ass .so Ive Decided Too Take The Plunge .my Factory Pulley On My S/c Is A 3.33 And Its Supposed To Be 5-7 Psi .so I Ordered A 2.87 Pulley Today Says Itl Get Me 4 Lbs Of Boost Im Thinking Then Ill Be At 10 .my ? Is Does That Sound Right And Is There Any Bewares About Using A Smaller Pulley W/ 10 Psi Of Boost.is My Tune Safe Set For Now Til I Get Upgrade Or Should I Get Upgrade Bfore I Put It On ,what Are The Repercussions Of Using A Smaller Pulley .problems Etc.im Told 10 11 Boost Is Safe But I Want Too Ask The Pros.any Input At All Will Be Appreciated.expierance Is The Best Way Too Find Out .and This Is The Place.thanks
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  2. 09-04-2007 03:43 PM #2
    Ramsey
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    Well Takin A Nap Just Had Surgery Ba Back Around 5.30 Hopefully Have Some Answers Or Suggestions Ive Got Till 6 Pm Too Change Anything Tonight On My Order Please Lets Have Some Opinions,dont Want To Pay For Overnight For Nothing Just Too Return It ,thank You Guys,talk Too You In A Little
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  3. 09-04-2007 04:38 PM #3
    Ramsey
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    Wow
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  4. 09-04-2007 07:16 PM #4
    Ramsey
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    nobody has put a smaller pulley on?
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  5. 09-04-2007 08:06 PM #5
    Ramsey
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    I Wish I Could Get Some Answers.lalalala
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  6. 09-04-2007 08:49 PM #6
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    1slow01z71
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    You need to get Allen to send you a retune besides that you will be fine. Just watch your wideband for the first few WOT runs and make sure it isnt leaning out, other then that take out some stock in a tire company you are going to need it
    2007 CCSB Z71 VortecMax: Stock!
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  7. 09-04-2007 09:35 PM #7
    Ramsey
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    Thanks Alot ,is It Really That Much Diff In A Centrifical S/c ?
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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  8. 09-05-2007 07:27 AM #8
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    SCIV
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    It will make a big difference in the upper RPMs. Like slow said, get a retune.

    Is 10 psi safe...hmmm that is a loaded question. Wasn't on mine, but with your meth it should be fine.
    Gone, but not forgotten!
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  9. 09-06-2007 12:15 PM #9
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    txarkitekt
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    Be sure to peg your crank pulley...you DO NOT want to spin that thing...

    2000 ECSB 6.0L
    TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
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  10. 09-06-2007 12:29 PM #10
    Ramsey
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    is this because of added torque .?that much more torque diff?from 7 psi.do you havethe link for pegging the crank? ik ow i saw it on here once but lost it .thanks
    mods:2004 sierra ext sb,20s ,big brake kit w,hawk pads,air bagged,2006 6.0 lq4 swap,vortec supercharged10psi, air to water intercooled w/ dual electric fans on it ,snow meth injection kit,60lbers, e-fans ,big radiator swap ,cam 218 /222 548/550 comp .hardened prs .1.85 comp roller rockers ,guideplates ,crane double springs,trans 4l65e built .pacesetter l/ts true duals w/x pipe and magnaflows,14 bolt rearend swap ,3.73s,aroemotive fuel pump system w/elec.fuel controller and bypass regulator a/n fittings, taylor 10.5s interceptor gauge,aem w/b a/f ,autometer boost/vac NELSON 93 OCTANE TUNED .
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