I am running Pirelli Pzero Nero M+S on 18s. I noticed that everytime i give a little gas into a turn my car begins to fishtails in the rain or on wet ground. I was wondering is something wrong with my suspension or does this happen to everyone? IS there anything I can do about it for example. get a rear tie bar or lower strut bar?

 

1. Check to make sure that the spring spacers have been removed from the car.
2. Lower profile tires provide less compliance than OEM tires and exacerbate oversteer tendencies.
3. Offset non-conformities can affect handling.
4. Is your alignment set correctly?
5. If all of your available grip is being used in cornering, the use of the throttle will induce oversteer. If you haven't done so, I recommend a driving school (either autocross or track) to more safely explore the limits of your car.

Any or all of these issues may have contributed to your concern.

You already have a lower tie bar on the car and the S2000 does not have a strut-type suspension, so neither of your suggestions will help.

 

Check tire pressure all around.

I had front tires changed this spring and the car handled like crap in the rain- the tire dealer had 38 lbs. in the front tires, where I told them I wanted 32 and assumed they had it set to that.

 

M+S and 18's... that's your problem.

M+S means mud and snow which means that your tires are all seasons and are much less sticky that the stock ones. Combine that with 18's and thus stiffer sidewalls and they become very easy to break loose... especially in the wet.

Maybe as you wear them in the traction will get better. If not, I think you may just have bought the wrong tires. I hope I'm wrong but that's my opinion.

Good luck.

 

Your tires are the problem. The S2000 needs summer high performance tires to handle properly.

 

Heh, my car seems to fishtail on dry land... but then again that's a throttle issue

Yeah, get some different tires and you should be doin better.
-Doug

 

Actually, those Pirellis are very good tires. I've had a few sets of other brand M+S with probably better wet traction that stock.

What width are your tires?

Wrong pressure or alignment can cause fishtail with any tires as well.

 

I have 18x8 in the rear.

 

Thats not a tire size, its a wheel size. Check the sidewall of your tire.

 

Maybe it's just driver? Laying into the throttle when it's wet out WILL make the car lose traction. The only thing tires change is how much throttle it takse to get to that point...