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Been doing some research and was wondering if anybody is running a Vortech Griptec pulley?
Here is a nice write up: http://www.mustangandfords.com/how-t...rger-belt-slip
I have bought one from https://www.lethalperformance.com/ca...ult/?q=griptec, (still in the mail). --Basically it has two patented processes "micro-grinding" and "micro-welding". Belt slip is always an issue; at $169 a little pricey, but if effective it will be worth it.
Close up pics of the grooves/teeth.
griptec-weld-surface.jpg
Last edited by bubbafett; 05-24-2020 at 10:11 PM.
• Built S52 w/Dinan ISR-3 kit, NickG Stage 2+ Tune, Dinan Vortech V2 Supercharger, Dinan Air to Air Intercooler, Dinan CAI, Porsche 803 HFM, Buldogge 6" crank pulley, Griptec 2.90" blower pulley, Eurosport UD pulleys, Dinan 3.38 Diff, Dinan front/rear Swaybars, Dinan springs, Koni Yellow Sport Struts, Ground Control end links, South Bend Clutch Stage 3 Organic, AASCO Light Weight Flywheel 18.5#, Zionsville Radiator & Oil Cooler, Riot Racing BBTB, Schrick Intake Manifold, 42# Injectors, Schrick cams 264/256, Forged Wiseco pistons 9.0 comp., Forged Eagle rods, Supertech dual valve springs & valves, VAC crank & bearings, Supersprint mufflers, Euro Z3 midpipe, Raceland euro headers, Walbro 255, Bevauto ignition coils, Vortech Mondo bypass, Bailey Diverter DV30, Ireland Rear Subframe Bushings, Mason Engineering Strut Brace, Mason Engineering Clutch Petal, Apex 18" EC-7 Wheels, Full Custom Sound System, two trunk lids (with & without OE spoiler), Hardtop, Trunk full of AK's...
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928 Motorsports has pulleys on eBay that have a patented non slip detail to them. Another option to check out.
'98 RMS stage 2+++++(491whp/390tq VAC cams, CES Cutring-9:1, Built blower, Meth etc)
'09 Saab 9-5 Combi 5mt 1 of 1(Built Motor, Brembos, LSD, the works!)
'22 Cadillac CT4-V BlackWing 6mt
'22 Cadillac CT4 2.0T Sport AWD (wife's)
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You might look at these guys too. I had my pulley coated by them years ago and I have never looked back.
https://www.carbinite.com/pulleys/
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o 1997 540i6 o Dinan supercharger system o Dinan stage 3 suspension system o Dinan wheels o UUC EVO3 SSK/DSSR o SS Headers o M-Tech illuminated shifter o M5 3.62 LSD o Cubic trim o Gauge rings o OEM In-dash CD o Ultimate pedals o Hella AE's o M-Sport Steering Wheel o 400 RWHP o A/W intercooler o Killer Chiller
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I ran the Vortech high traction pulleys 10 years ago while supercharged. Had an 8 rib 6.00 crank pulley. The smallest blower pulley I could run was 2.80 without slippage and I think even it was slipping. The OP may be at it near the limits of his 42 lb injectors with 6.00/2.90 and an S52 with Schrick cams.
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--I believe you are correct pbonsalb, my V2 max spin is 52,000 RPMOriginally Posted by pbonsalb
(hoping for 14-16# of boost).
• Built S52 w/Dinan ISR-3 kit, NickG Stage 2+ Tune, Dinan Vortech V2 Supercharger, Dinan Air to Air Intercooler, Dinan CAI, Porsche 803 HFM, Buldogge 6" crank pulley, Griptec 2.90" blower pulley, Eurosport UD pulleys, Dinan 3.38 Diff, Dinan front/rear Swaybars, Dinan springs, Koni Yellow Sport Struts, Ground Control end links, South Bend Clutch Stage 3 Organic, AASCO Light Weight Flywheel 18.5#, Zionsville Radiator & Oil Cooler, Riot Racing BBTB, Schrick Intake Manifold, 42# Injectors, Schrick cams 264/256, Forged Wiseco pistons 9.0 comp., Forged Eagle rods, Supertech dual valve springs & valves, VAC crank & bearings, Supersprint mufflers, Euro Z3 midpipe, Raceland euro headers, Walbro 255, Bevauto ignition coils, Vortech Mondo bypass, Bailey Diverter DV30, Ireland Rear Subframe Bushings, Mason Engineering Strut Brace, Mason Engineering Clutch Petal, Apex 18" EC-7 Wheels, Full Custom Sound System, two trunk lids (with & without OE spoiler), Hardtop, Trunk full of AK's...
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Just don’t blow yours up like I did mine. You might be fine in 1st, 2nd and 3rd, but the added load of redlining in 4th or 5th could do you in. I was going 155 when mine let go.
I ran a 0.098 MLS in the next engine and a 60 lb tune with a walbro 255 and boost-a-pump. With the Schricks, rms headers, super sprint mid pipe, b&b rear, it did 463/368 SAE in a Dynojet at 16 psi from a 6.00/2.80 pulley set. I also had water meth injection. And went from a 3.23 to a 3.38 to a 3.64. The 3.64 dropped my top speed to something like 143 with the 255/40/17 rear tires and a 7000 rpm limiter.
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