Friday, April 22, 2011

Update: Roush 511cid Shelby Cobra

The continuation Shelby Cobra is finished. This Cobra has a Roush 511 cid big block FE motor.
Like all of the Roush EFI packages, the drivability left a lot to be desired. The car was extremely difficult to start, idled very poorly and was running very rich. Autotrend EFI completely re-wrote the calibration (tune) and the car is a whole different car. Starting is great, the motor runs clean and crisp and idle quality and drivability is excellent. The engine management system is an Accel/DFI