Since I got my mugen headers I have been having some trouble finding the right launch rpms. <4 I bog >5.5 wheels spin always through first and into second.

So anyway, the last 2 times I have gone out to try to find the best launch RPM's and my car is kicking pretty consistantly to the right. Yes I know that it is to be expected some, but before the tail would hang a bit to the right, then pull in straight and off it would go.

Now I really have to work to keep the car straight.

Tire pressures are even at 37psi when warm/hot.
I leave 2 good tire marks, so I assume the diff is working correctly.

Any ideas?

Also I have noticed that with the mugen headers I easly can spin the tires between 1st and 2nd, 2nd and 3rd, and if I am really on it, 3rd and 4th (sometimes).

 

woohoo! I just moved my own thread

I figured I'd rather have it here than get lost in the waste of poll talk.


Can anyone help me on what I can check or am doing wrong?

 

Good move dude . Just curious, does your car pull to the right too when you brake hard?

 

I don't know... I'll go out in a few and test.

 

Mine used to do that too (two differentials ago).

-Check your tire pressures with an accurate digital gauge.
-Check your alignment

If it continues, take it to the dealership and downplay the "when I peel out" part. The car seems to have a tendency to kick SLIGHTLY to the right from engine torque, but if it's more severe, something might be wrong.

 

Krazik, check out the thread I started earlier this month - it should have the answers you are looking for. In essence the rear end slide is normal - live with it.

http://www.s2000online.com/forums/showthre...p?threadid=3133

 

Some sliding is normal.

Kicking hard enough that I have to fight the car to stay straight is not.

Besides if it is normal, why didn't it do it for the first 16k miles?

 

Krazik, mine does the same, you really have to fight it to keep it in a straight line. Can I suggest at 16k you are probably due for a second set of tyres - I know mine (tyres) are shot and I suspect a major cause of the sliding.

 

replaced the first set at 10k. on 245-45-16 S-02 PP's on the rear.

 

So what's the verdict?