[Editor’s note: This article originally appeared in the November 2016 issue of Grassroots Motorsports.]
Meet Our Expert
Gary Bohanick of Detroit Speed
detroitspeed.com
Common Failure Points: Stock rear toe links are the first weak link of the rear suspension. Spend the money and purchase aftermarket toe links to fix this problem.
Next problem area: the rear cradle bushings, which allow excessive body movement. Same solution here: Buy aftermarket bushings to reduce compliance and eliminate the squirm under hard acceleration.
After that, consider upgrading the rear differential. The stock SS unit will not take the punishment of extended track use.
Must-Do Upgrades: Coil-over setup, front and rear; front and rear anti-roll bars (the car typically needs more rear spring rate and roll rate); front upper camber plates to achieve more camber.
Ideal Track Wheels: ZL1 or Z/28 wheel and tire sizes. For the ZL1, that’s 20×10-inch front wheels with 285/35ZR20 tires and 20×11-inch rear wheels with 305/35ZR20 tires. The Z28 came with 305/30ZR19 tires all around mounted on 19×11-inch front wheels and 19×11.5-inch rears. How big can you go out back? 315/35ZR20 rear tires can be used with minimal modifications.
Spend your money on the basic needs mentioned above. Then, go spend money on fuel and tires to get seat time rather than on glowing halo headlights.
Meet Our Expert
The Chevrolet Performance crew
chevroletperformance.com
Aero Upgrades:
Our Z/28 Aero Component Kit includes select bolt-on pieces from the Z/28 Camaro’s downforce-enhancing exterior. It includes a front splitter and wheel flare moldings that fit a rear spoiler with a wicker bill.
The wheel flare moldings are designed to cover wide tires and feature deflectors at the bottom-front corners that contribute to downforce-producing aerodynamics. The unique rear spoiler’s wicker bill is a small, vertical tab at the top edge that adds approximately 28 counts of drag, improving rear lift performance by 70 counts. That allows the Z/28 to handle turns at higher speeds and delivers greater overall stability at high speeds.
Suspension Improvements:
The Camaro 1LE Suspension Track Pack will get you improved body control and on-track performance. This…
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