108716, RE: T3/T4 Turbo Help (running Lean)
Posted by 740 turbo brick, Dec-31-69 06:00 PM
Never turbo'd a 420A so I cant tell you about the FMU parts, but I will say that you cannot tune/modify a stock N/A DSM ECU in anyway. They are encased in epoxy. You can get an AFX ECU if you like waiting for months to get a part, or you can go Megasquirt which is well worth the price.
|