Originally Posted by
forty2
I'm aware that tires are going to be a big part of the final equation, unfortunately my final track surface isn't yet finished so I'm not quite ready for delving into tires.
Okay, gotcha. However, the starting point of any of this is tires. Besides, if no ones seen the track surface, any suggestion is going to be a guess. With that qualifier, in your situation, I'd probably go with Sweep 40 premounts in the front and since you're loose, Sweep 25 premounts in the rear. This is cause they aren't pricey and are a good all around tire that work well on most surfaces. There may be better tires, but it's real easy to wind up with more $$$$ in your tires if you start chasing tires.
Now, this is important. Label what they are with a permanent marker cause if you get them mixed up, there's no good way to tell them apart. Running a 40 on one side of the car and 25s on the other can make your life more interesting than you'd want.
I'm currently running 210mm, but I have a 225mm body I'm going to start painting tomorrow. Safe to assume the 225mm will be less prone to oversteer?
It's been said by many people, including myself, that the longer WB cars are more stable than a SWB, but that's just an opinion. But no, I don't think you can assume that a SWB oversteers more than a MWB. It may happen quicker on a SWB which to some may make the car feel "twitchy". I believe it's this quickness rather than any inherent tendency of one to oversteer more than the other.