I know that these topics have been covered and I searched and read all threads however most have variable differences so I am not sure that they apply on my car/set up.
I was on an autocross corse this weekend and it was a tight turned corse with a few places you could get up to 50-70mph, well I would come into the corner at around those speeds and turn and my car would push into the corner until I slowed to probably around 25-35mph. Now it was a open class with street tires, and this is my set up. 98 Integra GS 4Dr, LS Turbo (about 250HP), LS trans with GSR 3rd gear, countershaft, Type R LSD and Ring gear, Tein Basic coilovers, Neuspeed front upper strut tower bar, Neuspeed Rear Swaybar (19mm),Tanabe front and rear lower tie bars, Nitto Neogen tires. Now I know that tires would help as far as getting something gripper like a Potenza or something but as far as suspension goes, should I go with a larger rear swaybar such as a 21 or 22mm or go up to the 24mm. Now The way my car is set up now, it is very predictable and does handle very well except on the high speed quick turns. I would like to keep the car somewhat neutral so the back end does not kick out too much also. Any suggestions would be greatly appreciated! The quickest time on the corse was 73.9 and I put down a 80.1 and placed 4th.
I got beat an Evo (driven by two brothers ) that took 1st and 2nd place and an Supercharged S2000. We all beat out the GTR that was there

 

I'd go for the OEM ITR 22mm bar. The course where I used to autoX my car had an area similar to what you describe - a long straight then some quick S-turns. I had GC/Koni 380f/450r rates and an ITR 22mm rear bar and the back end of my car would step out easily if I let off the throttle suddenly or braked too quickly while entering those turns.

 

I was reading up on this also lately, I believe someone talked about 24mm and a little too much over steer to their liking. So those guys actually tried your 19mm and said it worked out great. With my car (ek) I run a 22mm type r which I like. As with everything it's all driver preference. Since your actually tracking the car I would keep everything the same but switch out your shocks and springs. Tein Basic spring rates are 8k F/6k R in auto x most set ups use a stiffer spring out in the rear to help with the body roll. Reason why I tell you to swap springs is first off basics suck big *****. Secondly I know they can't handle any stiffer spring rates. If you want to go cheap just order rear Koni's and see if GC will just sell you the rear pair of their coilover kit with 10k springs since the fronts are already 8k. Good luck man.

 

Also remember that the stiffer the rear springs are, the lighter your swaybar can be. With lighter springs, the sway bar needs to be larger to get the same effect when cornering, but that will also greatly increase the stress on the subframe mounting points where the sway bar is attached.

 

Yeah, thats why I told him to keep his 19mm and try the stiffer rates.

 

I had a 92 prelude that I had set up with the Koni and the GC with a neuspeed 24 or 26mm, I cannot remember but I hated the way the rear would swing out, It was fun on the roads but if you took hard corners you better be ready for the *** end to swing out so that car had nothing on the handling that my current set up has. I am not trying to knock down anyones suggestions and I am open to all of them but I actually prefer the tein's over the
koni/gc set up. I had that first on this car because that is what I had on my Prelude, then I switched to the Tanabe sustec Pros and they were good but I could not get them to ride very well (as this is a daily driver and I drive 135 miles a day!) So I switched over to these teins full coilovers and I don't know that I would go back to anything else. It actually handled better than I would have thought other than when I would come in Hot in a hard corner. I didn't have to worry about the tail swinging out or sliding around too bad. I was thinking of just jumping up to a 21mm. I think anything else would cause too much oversteer
which is not what I am trying for. OR I currently have 17" wheels with those nitto neo gens, would it be better to get a 15 or 16" with say a set of potenza's or a stickier tire?

 

Well the prelude you can't compare because of the weight factor but 24 or 26mm damn! Thats why the rear would kick out. To get your tune to your like I still think you need stiffer rates in the rear or go with that thicker sway bar. As Pat had mentioned I would stick to OEM so the 22mm. As for your tires the only thing I ever got out of Neo Gens was they never really wore out. I ended up selling them and the still had good tread after 60k but they sucked big ***** once again.

 

You don't think a 22mm would be too big? So I could go with a 22mm type r one then and use the factory mt points? Or will I have to mount something different? Will my stock end links work with the Type R bar? I am sure that my nuespeed ones will not. Also What tire would you suggest. I bought the nittos for the simple fact that they do not wear out and since I drive about 42000 a year I needed something that will not wear out too fast. I never really thought that I would be auto x my car until I just decided to try it once and now I am hooked! Keep the suggestions coming! Thanks to all that replied!~!

 

You will definitely need a mount kit for a 22mm rear sway bar. Everyone says ASR, and that is a very good product, but on an Integra you can go with a Beaks kit and you'll be fine. I've had mine on a Beaks kit for nearly 6 years without any problems.

You CAN use stock end links with the ITR bar, as long as you're using stock lower control arms, or aftermarket that has the end link hole in the correct location (offset towards the top, if it's in the middle on the LCA you can't use stock end links).

42K a year damn and those NeoGens last that long? Are those all-season tires or something? The longer a tire lasts, the harder the compound, which means less grip. I would go with a performance tire with a treadwear rating of 300 to 350 or so. If you're not riding super slammed, you can just get the car aligned and not worry about tire wear. If you do get a bit of wear on the inside, just have the tires dismounted and flipped around, and then you'll get more life out of them.

 

Unfortunately I don't think there is a tire that can perform great and last that long. Kinda like I want 20lbs of boost all day, but I want my engine to last 100K miles. I would go with falken Azenis or those federal copy's at least those are cheap.

 

We'll I would just buy a set of some light wheels and some sticky tires that would just be used for track purpose that would still be considered a "street" tire. I wouldn't use them on a daily basis. I swap the wheels out because it snows here so I have the nittos on about 7-7 1/2 months and then I got some steelies with some blizzak's on them which if you have never had good snow tires, the blizzaks are amazing!! I got about 30K on my set of nittos and there is still a lot of tread left. I would suspect I'll get about 45K out of them. You can get a lot of mileage out of a tire especially if you drive it on the highway 135miles a day! I attached a pic of my turd behind the Skyline!

 

This is the wrong forum for this but I would go with a smaller rim but wider like a 15x8 or 16x8 for your car. If your not willing to mod your chassis that would be perfect. If your building an all out track car then 15x9 I think I'm gonna try that on the street actually hehe. Gonna notch my RTA's and run a 5mm spacer 15x9 +36 with a 225/45/15 on the street and 245/40/15 for the fun stuff. hehe