pulley swap / serpentine belt change?
For you gent's who have changed pulley sizes (Maggie based) -- did you change the serpentine belt size as well?
I've notice some who went from the stock 3.3" down to 3.0" even 2.9" -- did you change belt sizes?
....or does the tensioner pick up the slack? (effectively with no slip)
2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
Hey Henry. On mine I used the same belt.
I went from 3.0 to 2.8 with same belt, no issues
Rotohack 102 intake - 102 MAF - TPIS 102 TB - TVS1900 ported & plated w 8 rib 2.5" front + OD rear
PnP Interchiller - RCR ported heads - RCR Lunati 219/231 113+1 - Forged Bottom End
ARH 2" LT headers - Solo 3" CB - MT DRs + M&H FRs on Weld RT-S
CTS-V fuel w Vaporworx - FAST 85s - Alkycontrol meth M15 + M10 - RCR tune
9.75@139.2 ? rwhp ? rwtq
Changed belt sizes for sure on mine. Having to upgrade now to an 8-rib system for the road course- 6-rib belts keep shredding.
2009 Hot White G8 GT, CTS-V v1 fronts, Camaro 20's, BMR Sways, Eibach Springs, Rear Cradle bushings. GXP FE3's, BMR rear susp. Kooks 1 7/8 LT headers, RCR custom 3” exhaust, ported LSA blower, 2.38 pulley; Ported heads and TB; LS7 MAF, Racetec pistons, Scat rods, CTS-V crank; FAST 85 injectors; RCR Lunati cam: 223/238 .615/.601, 116 +2 LSA. CTS-V pump/VaporWorx cntlr. Built trans, Methanol injection. Rick Crawford built and tuned. Best 1/4 9.68 @142, 1.42 60'.
Thanks guys! There are these "relatively new" Gates belts I want to look at. They are dog ugly green - but apparently more durable.
2009 G8 GT
628.5 RWHP on gasoline ---> ARH Long Tubes 1 7/8" & full exhaust / Magnaflow Mid Muffler / Cherry Bomb Vortex Mufflers / Magnuson 1.9 / Overdrive "non-cog" pulley system / Ported blower base / 2.70" Pulley / LS3 rockers with Trunion upgrade / Trick Flow x255 cylinder heads / 8-Rib Pulley system / Innovator West 10% Balancer / DOD Delete / Lunati Lifters / Custom CTS-V Patrick G Cam Grind / Wiseco Forged Rods & Pistons / Injector Dynamics 85lbs / 4.25" Air Intake Tube / 102mm TB & MAF Tube / 102mm TPIS Throttle Body / LS7 MAF Card / ZL1 Fuel Pump / JMS Fuel Pump Booster / VaporWorx Controller / B&M Tranny Cooler with fan / Circle-D Heavy Duty Rebuild & 265mm triple Disc Billet Converter / Camaro Tranny Pan/ Eibach Lowering Springs / BMR Front & Rear Sway Bars, LCA's, Control Arms / DBA 4000xs Rotors / Hawks Ceramic Pads
I went down 1/2 inch shorter with a Goodyear belt. 3.0 inch pulley. No problems.
08 G8 GT: MagnaCharger TVS MP1900 10psi, LS9 cam, 72# injectors, Roto-Fab CAI, SLP Headers, Corsa Catback, etc.
My Garage
Thanks for that Henry, I've been wondering who made those. I saw one at ECS on a Hendrix Camaro; I'll take a look.Originally Posted by hflores3
2009 Hot White G8 GT, CTS-V v1 fronts, Camaro 20's, BMR Sways, Eibach Springs, Rear Cradle bushings. GXP FE3's, BMR rear susp. Kooks 1 7/8 LT headers, RCR custom 3” exhaust, ported LSA blower, 2.38 pulley; Ported heads and TB; LS7 MAF, Racetec pistons, Scat rods, CTS-V crank; FAST 85 injectors; RCR Lunati cam: 223/238 .615/.601, 116 +2 LSA. CTS-V pump/VaporWorx cntlr. Built trans, Methanol injection. Rick Crawford built and tuned. Best 1/4 9.68 @142, 1.42 60'.
The green belts are the Gates Fleetrunner. Supposedly more durable and have less stretch over time.
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2009 G8 GT MSM, Sport Pkg
Rotofab, Magnuson TVS1900 w/3.3", Ported Blower Tub, PB 10% OD 8 rib
Blitz Ls250 heads pocket ported w/LS3 valves, PSI 1511ML springs, YT 1.85 RR, 7.450 PR, Comp FSL AFM cam
Kooks 1-7/8 mids, Corsa, ZL1 converter, PPV alt
I found they have a race line that's blue; wonder which one is better, the Fleetrunner or race.
2009 Hot White G8 GT, CTS-V v1 fronts, Camaro 20's, BMR Sways, Eibach Springs, Rear Cradle bushings. GXP FE3's, BMR rear susp. Kooks 1 7/8 LT headers, RCR custom 3” exhaust, ported LSA blower, 2.38 pulley; Ported heads and TB; LS7 MAF, Racetec pistons, Scat rods, CTS-V crank; FAST 85 injectors; RCR Lunati cam: 223/238 .615/.601, 116 +2 LSA. CTS-V pump/VaporWorx cntlr. Built trans, Methanol injection. Rick Crawford built and tuned. Best 1/4 9.68 @142, 1.42 60'.
When I changed to the 2.8" pulley I swapped to a 101" belt and also changed to a 60mm idler to help with belt wrap
Atmospheric Acquisition
Sydney - 2009 G8 GT - Liquid Red, Onyx/Red interior, Flat Black Rally Stripes
Performance: Tuned By Me Using HP Tuners, TMS Forged 402, Ported LSA Supercharger 2.5/9.5, AIS Dual Nozzle Water/Methanol Kit, Super Chiller, ID850 Injectors, Rick C. Blower Cam, Morel Lifters, Comp Trunion Upgrade, Roto-Fab CAI, Kooks 1 7/8 Mids, Solo Mach Shorty Exhaust w/ 3.5" tips, CTS-V Torque Converter, Camaro 3.45 Diff, 6 Piston Front/4 Piston Rear Brembo Brakes, ZL1 Fuel Pump/BAP, Saikou Michi Dual Catch Cans, Spohn Trailing Arms & Toe Links, BMR Cradle & Diff Bushings, Derale Trans Cooler, SJM Line Lock.
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