11-02-2011, 01:03 PM
Level: -INF 
Well, something free is always a good try, if it dont help it wont harm.
You can use a car performance simulator for free, there you can take your car, any car, install the engine, and do mods to find out how the car would perform, because how a car drives is NOT only defined by the engine.
Try at http://www.nxgtrsim.com