ATI Pulley - Supercharger - 8.88 - 11 Grv Serp - 2019 ZR1 LT5 - 10 Percent OD

If you're looking to get more out of your 2019 Corvette ZR1's supercharged LT5 engine, increasing the supercharger pulley size is a common way to do it. This 10% overdrive pulley from ATI is designed to spin your supercharger faster, which can lead to improved horsepower and torque. It's an 8.88-inch diameter pulley with an 11-groove serpentine belt configuration.

ATI is known for making well-built performance components, and this supercharger pulley is no exception. It's made from strong materials designed to handle the increased rotational forces. The 10% overdrive means it spins the supercharger 10% faster than a stock-sized pulley, effectively increasing boost pressure. This is a popular modification for ZR1 owners looking for a noticeable power increase without going to a full custom tune right away, though a tune is highly recommended to take full advantage of the added boost and ensure engine safety.

When installing a larger overdrive pulley, it's important to ensure your serpentine belt is still the correct length. You may need a slightly longer belt to maintain proper tension on all the accessories. Always refer to the manufacturer's installation guide for specific details and recommended practices.