I have been pretty happy with the unit that Chris Ludwig pioneered. That unit IS a modified stock ECU so it required no modification to the stock harness.

After I stopped "fixing" things I knew nothing about and just relied on the tuning parameters of the ECU my car started to run way better and much more reliably.

The ECU can modify virtually all the control parameters that the tune the car as well as logging them for subsequent analysis. I have connected my Innovate LM1 AFR unit to input into the logging channel so that I can review AFR/rpm/pulse width/temp.

I have finally managed to get the exact AFR I was hunting to hold steady all the way down the RA back straight. It has made a big difference to how my car performs.

Early on I sadly realized that I was not an intellectual candidate for the more exotic ECU systems nor did I have the financial resources to make an installation a success.

Now if only I had a 5.12 and could afford new Hoosies for every race . . . .

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