Why You Need a GripTec
Belt slip on supercharged setups is a widespread issue, and you may not even know it's happening. It isn't always obvious. Sometimes you only catch it when the system squeals or squeaks, which means you could be losing boost and power without realizing it. Proper belt wrap helps, but with superchargers it's hard to eliminate slip with surface contact alone. Well-optimized setups can see measurable gains once pulley sizing and grip are dialed in, which is exactly why many builders choose GripTec pulleys.
GripTec pulleys are trusted across the performance industry for delivering reliable traction and minimizing slip. Here at Lethal, we've 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.
What Makes GripTec Different
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 of a GripTec pulley's belt surface.
Proven Performance Beyond Pulleys
GripTec's surface technology goes beyond supercharger pulleys. JMS Chip & Performance applied a GripTec finish to the inside of their Avenger and Savage series wheels to help prevent tire slip, similar to a beadlock effect.
JMS wheel with a GripTec finish.
Built for Every Supercharger Setup
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. 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 that are harder to source and generate extra heat from friction. GripTec solves the slip without the cog-belt downsides.
GripTec pulley on a Whipple setup.
Shop GripTec Pulleys by Application
Frequently Asked Questions
Do GripTec pulleys make any additional noise?
No. Unlike cog or toothed pulley systems, GripTec pulleys maintain OEM-level noise while improving belt traction. You gain performance without introducing extra whine or squeal.
How do GripTec pulleys prevent belt slip?
Two patented processes, GripTec Micro (CNC ablation) and GripTec Weld (micro-welding), create an engineered grip pattern on the belt surface. This increases friction without excessive wear, helping maintain boost pressure and prevent slippage in high-RPM, high-boost conditions.
What supercharger systems are compatible?
Applications exist for Whipple, ProCharger, Vortech, Paxton, and TVS systems, with multiple rib counts and sizes from 4.00 down to 2.50.
Losing Power to Belt Slip?
Not sure which pulley fits your setup? Give us a shout and we'll match a GripTec pulley to your supercharger, rib count, and boost target.
Related reading: Whipple Supercharger Pulley Chart · Best Mustang Mods & Upgrades
