American Racing Solutions® (09-13) Corvette ZR1 LS9 Billet Aluminum Racing Belt Tensioner

Although the Supercharged LS9 engine on the C6ZR1 has an 11 rib belt driving the supercharger, in many cases it is still not enough to prevent belt slip. Smaller than stock pulleys, combined with inadequate belt wrap from the factory is a recipe for belt slip on the ZR1 that we have seen and been dealing with for many years. The best solution up to this point was fighting to install the tightest belt possible while frequently changing belts to keep belt slip to a minimum.

Aside from belt slip, the OEM tensioners have been known to fail for a variety of reasons.

We took all of these issues into consideration and decided a new tensioner was necessary with a complete design overhaul. Performance, durability, and appearance were all taken into account during the design process to come up with the best possible alternative solution for a belt tensioner.

 

Key Features:

• All 6061 billet constriction (much stronger than the stock unit).
• 50% increase in tension over the OEM tensioner.
• Increased tensioner travel
• No modifications needed for install.
• Simple bolt on installation. (5-10 minutes)
• Reuses the factory hardware for mounting. (Three bolts)
• Lifetime Warranty. Never buy another tensioner again!
  
  

American Racing Solutions believes in the age old adage that “necessity is the mother of all invention.”  Anyone that is racing a supercharged muscle car knows that the stock belt tensioner on their car was not designed to stand up the stress and the strain of racing with increased HP and torque.

We are proud of our line of Racing Belt Tensioners and Pulleys, which are designed and fabricated from 6061-T6 Billet Aluminum (not cast).  Every item in the line has been designed to be a direct bolt on replacements for the original/stock tensioner (no adaptor plates or accessories needed).

Our Tensioners have been proven on the DYNO and the Race Track and will increase boost and HP by reducing or completely eliminating belt slip.

As a result of our engineering and the use of custom fabricated springs, hardened steel shafts, needle bearings and bushings our Tensioners will outperform anything on the market.  No more broken, shredded or melted belts.  Every tensioner that we sell is guaranteed that it will not break or bend.  Yeah, they’re that good.

In addition, we pride ourselves on our partnership with our customers and our racing partners.