Step By Step
Even with a power-sapping 6-speed automatic trans, the ZL1 turbo kit lays down nearly 530 hp and 585 lb-ft of torque at the rear wheels with a stock motor. Manual trans cars put out 50 hp more. Included with every turbo kit is a custom dyno tune using EFI Live software. For pump gas compatibility and to ensure long piston life, Fastlane dials back the timing from the stock 28 degrees of advance down to 12 degrees. If the stock pistons could handle it, which they can't, bumping up the timing to 17 degrees would be worth an extra 70 hp. For mail order customers, Fastlane sends out a custom computer program that can be loaded up with an SCT tuner.