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From my point of view, a lot of this conversation is neglecting the time five or six years from today when 2007/2008 cars are coming into IT, and they have Government Mandated traction control integrated into the very being of the AI that runs everything. OBD2 is intended to be "tamperproof" well it's not yet, but it will be. And if the spirit of the rule set is to provide a class for limited prep production vehicles to race, in an economical way, then we can't go on willy nilly banning things that we don't fully understand. Current production cars already have multiple drive train computer modules, this is something that the rules are going to have to cope with. It will, in the future, cost tens of thousands of dollars to work around traction control. If things continue on the path they are on, traction control isn't going to be limited to wheelspeed sensors and an ABS module, it will be integrated into the thought processes of every control module on the car, redesigning that is going to be nearly impossible. Let's not exclude the future in these conversations, and be very careful about the assumptions you make when thinking about these problems.
In my opinion it would behoove us to embrace the technology, there are folks who intentionally try and fool the computer, or force it to deal with limited input information by disabling a sensor or two, I think that the only thing you are fooling is yourself. The computer is trying to accommodate your needs, so you handicap it and expect some stellar results?
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I have to say I have lots of time with the 350 and the vds system and it is not designed to be a benefit to performance. The Traction control systems on street cars take away throttle and use the brakes to regain control in a wheel spin or slide situation. It will be actually more of a problem to blend those cars into IT if we allow more technology to get around these deals. On the 350z project we worked with a tuner and had the OE boxed cracked and flashed before the first race in 03. Anything can be done of you want it done. For those that think it will even the playing field your wrong unless you want to hire somebody to do the dyno work and write the fuel and timing maps. It would be far better to real it back rather than let it out for this class.