Alright, you guys are convincing me I need the bar. I may go with the moddiction if it comes out anytime soon, and upgrade to a gendron later if I need to. Sticking with the stock shocks for now, since I only have 28k miles, but that will be upgraded to revalved Konis at some point in the distant future probably.

That being said, if you were buying the bar and tires at the same time, what sizes would you go with. I know many are saying 245/255, which is what used to be common for stock class with R comps, but does the 245 really work ok with a street tire and a 7 inch wheel being pinched that much? Street tires don't take nearly as kindly to pinching. That being said, I am in an AP2v3 so it understeers a lot more then the AP1s, so maybe I need as much tire as I can get?

My experience is coming from a heavily camber challenged BMW 135i that I pinched 235s on a 7.5 inch wheel and then overinflated to get some camber on the actual tire profile, so I am not used to the type of setup required by an S2k, hence why I am asking here. My gut (which is probably wrong) is you don't gain anything from going even more pinched since you don't need the camber and you'll end up with a rounded tire profile that won't have the flat contact patch that a smaller tire would. I could be completely wrong though, that's why I ask!

 

I run 245 dunlops on the front and 255s on the rear. With no front bar I was oversteering at my first autox. I run about 6lbs more psi In the front now to control the tire roll compared to 225s I had b4

 

I have been of the same opinion as you on the front tire size for street. I have always run 225/255 but have ax'd another B street similarly prepared with a 245/255 combo. Honestly didn't think the 245 had any advantage. Although, all your national level drivers are running the 245/255 combo. I guess besides a few extra $ and slightly more weight there is really no penalty for the 245s and there is possibly a slight advantage.....so go with the 245/255 combo.

I am assuming all along you are running max camber and caster settings. I am right at -2 camber and 6 caster with zero toe in the front and -2.4 camber in the rear with just a bit of of toe in.

 

Do the 245/40/17s rub at all on a stock 7 inch wheel with stock suspension with maxed camber? I can't seem to find a solid answer.

 

I've got a 125$ used whiteline front bar and some used 300$ zii's (almost new 205/50/16's) and have paxed 5th on my first 2 different local Scca event. The car came with a cat back when I bought it. I will probably buy the moddiction bar if it ever comes out because the car was a little tail happy on concrete but the balance was good on blacktop.

 

i havent noticed it .
100% no in daily driving duty,....95% sure No in an autox

 

it will rub the liner a tad under hard cornering. get the bar if you plan to be competitive at your local event. it makes the car so much more manageable. not saying that you couldnt without it. you should drive it without first then put it on and see if it made a big difference.

 

I should add, I do have a Comptech front bar on full stiff.

 

Would a 235/40 front tire make more sense? Bit less pinch, no rubbing, hopefully same grip?

 

I have a new set of 235/40s for the front ready for mounting on my OZ Alleggerita HLT, 17 x 7, 49mm offset. I am worried about rubbing because of the offset. These are about the only aftermarket light weight wheel that are legal for B street.

The 225/45s slightly touch the inner fender on the most extreme ax sweepers but with a lower profile and smaller diameter of the 235/40s, I am hoping to get away with them