Just Sharing - MegaSquirt Hemi w/Traction Control

The setup only has a 100 miles or so on it but the results have been more than entertaining! The car will sense the amount of slip and react to a target difference, in this case I am using 3%, which is a bit low, but I am getting the hang of things.

The car drives completely different and it is much more managable to put power down on the street. My tires are a bit old and 1st and 2nd gear wouldn't be very useful under 35-45mph..I'd just blow the tires off of it without heavy peddling to keep it moving forward....as shown....


With the traction control, timing is pulled to try to manage minimal tirespin and maximum acceleration. This isn't a perfect example, but you can see the rear wheel speed [VSS1] go up and down and it keeps the car going forward...and straight. It's hard to say how much quicker it makes the car around town, but it is nice to be able to get on it and let the car go as fast as it can manage.


Anyway, I am just sharing my results. If anyone has questions, feel free to ask. I am still working on tuning it, but I can provide some support.

I know this is a bit of an old thread, but I just got the MS3X setup in my Dart up and running and got a front VSS installed over the weekend, so I'm just getting around to playing with mine. As it stands my DOT slicks and current tune don't really put me in too much wheelspin territory, though I'm guessing if I put street tires back on it I might see some again when provoked. That being said, what kind of power are you making with your car? I'm curious how you have your spark retard curve set up to manage the wheelspin. I finally found that setting today, but I don't really have any idea what values make sense. I know it's likely a bit of guess and check to see what works, but figured if there was a chance you had a similar setup that I might be able to learn from your settings.