In Reply to: Re: M3 - OBD2 Programmable ECU Software Frustratio posted by Shawn Fogg on February 10, 2000 at 18:58:33:
I'll take your words as an encouragement.
I'm a pretty die hard car guy and I want to know everything about my car. As soon as I found out that the 96+ M3's had programmable computers vs. chips I was ecstatic.
Some people believe that once we get the ability to do the work ourselves, we'd blow up the car.
But like you said, it'd be nice to bump up simple things like timing or a/f ratios.
I looked over DINAN's dyno charts for the M3. Assuming they tell people to use 91+ octane gas, their charts reflect a pretty simple +6 to +8 degrees in timing advance. Which makes roughly 10hp and 10ft/lb torque.
On most pre-95 cars imports, a timing advance was as simple as turning the crank angle sensor or rotor. ODB2 turns that act into mutiny.
Well thanks Shawn. Looks like I'll be buying the RDSport UK upgrade in the UK.