Speed Inc.- Ralph's ZL1 upgrades and dyno results!
We recently had the pleasure of working on Ralph's beautiful 2012' ZL1 convertible. Last year Ralph stopped in for an Airaid induction and American Racing 2" Long tube off-road headers with a full dyno tune. The car left with 500RWHP/502RWTQ with duty cycle of the injectors approaching 100%. This time around we went with a Metco 2.4" upper pulley, solid isolator, Metco idler, and a set of Injector Dynamics 850s.
The results were 573RWHP/582RWTQ!