DeAnza, I think you have things a bit confused. You are doing things that will cost money and not improve your performance. Right now, you are thinking of buying expensive sway bars, but you have set your rear toe at zero to try to save a few dollars on tire wear. Basiclly, you are going to spend a bunch of time and money redesigning your car's geometry so you can track it with the goal of saving maybe 2 thousand miles in tire wear per set of tires. This is just plain silly. The cheapest thing you can do and still have good handling is to set the stock suspension up correctly with the correct tire stagger and then buy new tires every 11K miles instead of every 12K miles.

You say that you have non-oem SO2s. What size are the rears? You probably have tires that are too narrow. There is no way that you "need" an aftermarket sway bar running on the track with street tires if the tires are the right size. Please remember that at the limit, one end of your car or the other is going to break loose. That's just the way it works. That is the way you want it to work. I don't know what you mean by "neutral." Do you want both ends of your car to break loose at the exact same time so that you have no control over the situation? The answer my friend is no, you do not. Some people want the rear to break loose first, others want the front to break loose first. No one wants both ends to break loose at the same time. Neutral steering is a bad term that people generally use to mean that the car is well balanced and does not do anything too suddenly. But something is going to give eventually and you only want it to happen to half of the car, not both ends.

Honda set up the car with oversteer. Increasing the size (stiffness) of the front bar will result in less oversteer, leading to understeer depending on the size of the bar. With street tires, a bigger front bar is not much help. At most, I would replace the stock front bar with a M.Y. 00 or 01 bar which can be purchased for short money. But do this LAST!!!

Do yourself the following favor. First, get stock size OEM rear tires. Second use a rear toe setting that will minimize the oversteer. Less than half of one degree is not going to make a huge difference in tire wear, especially if you are tracking the car anyway. See how that feels on the track. If you then want less oversteer, try the MY 00 or 01 sway bar. It uses all the same mounting points and hardware and will be nice and quiet too. If that still isn't enough, it means you want the car to understeer. I can't help you with that because I hate understeer. That's for front wheel drive geeks.

 

Thank You for that advices. I appreciated.

I am using 225 S-02 at the rear but Fonqu told me there are Honda OEM 225 width and the regular S0-2 225 width?

I think I am using regular S-02 now since I didn't change my tires in dealer...

 

Installing aftermarket sway bar will definitly tighten the ride, causing the car to oversteer. I prefer having oversteer drivability though...

Just like what legal bill said, stiffer rear = oversteer, looser rear = understeer.

Some swaybars will have adjustment capability.

 

Vey interesting thread
Off to check what my rear toe is set at!

 

There are two different So2s withthe same size designation, but the OEM tire is a bit wider. there is a way to tell the difference from the numbers on the tire. I'm sure someone on here can tell you what numbers to look for. Find out and then see which tires you have.