Belt slip with supercharged setups is a widespread issue. You may not even be aware it’s happening. Belt slip isn’t always noticeable — sometimes you only catch it when the system squeals or squeaks, meaning you may be losing boost and power without even knowing. Proper belt wrap helps, but with superchargers it’s hard to eliminate slip with surface contact alone. Well-optimized setups can see measurable gains when pulley sizing and grip are dialed — which is exactly why many builders choose GripTec pulleys.
Watch the video for the scoop from Jared!
GripTec pulleys are trusted across the performance industry for delivering reliable traction and minimizing slip. Here at Lethal, we have run them on many setups with outstanding success, proving their performance on real-world builds. When you need consistent boost and power, upgrading to a GripTec pulley is a proven move for serious horsepower enthusiasts.
Unlike traditional pulleys, GripTec units feature ZPE’s patented GripTec® surface — precision-engineered to enhance belt traction while minimizing wear. ZPE uses two patented processes to increase surface grip: GripTec Micro (a CNC ablation process that textures the belt contact surface) and GripTec Weld (a micro-welding process that adds material for bite). Together, they increase friction between the pulley and belt to virtually eliminate slip.
Close-up shot of a GripTec pulley’s belt surface
GripTec’s surface technology goes beyond supercharger pulleys — JMS Chip & Performance applied a GripTec finish to the inside of their Avenger & Savage series wheels to help prevent tire slip, similar to a beadlock effect.
JMS wheel with a GripTec finish
No matter your setup — Whipple, ProCharger, Vortech, Paxton, or TVS — GripTec pulleys are engineered to maintain consistent boost and minimize belt wear. With multiple rib counts and sizes from 4.00″ down to 2.50″, there’s a fit for every high-performance application. Explore the full lineup of GripTec pulleys on our manufacturer page.
Belt slip is a very common issue on supercharged setups. Some units cranking out 14–16 psi can take up to 200 hp to drive. Many systems suffer slippage and builders move to noisy cog systems — belts with shorter life spans, harder to source, and generating extra heat from friction.
- GripTec / ZPE
GripTec pulley on a Whipple setup
Watch the video below where Joe explain everything you need to know about supercharger pulleys.
Check out some of the Griptec pulleys here:
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