Stability over 100
Stability over 100
Author
Discussion

R8nan

Original Poster:

258 posts

255 months

Thursday 24th August 2006
quotequote all
Any ideas why the front end seems to go a bit light and unstable. Everything is fine until 100 and then the front seems to feel as if its lifting.

350matt

3,896 posts

308 months

Thursday 24th August 2006
quotequote all
I presume you mean over 100Km/hr.......

3 things

check the suspension geometry as it is absolutly critical on these cars

make sure the little chin spoiler underneath the car hasn't been ripped off

Check tyre pressures



Otherwise they should be pretty stable at speed

Matt

RUSSELLM

6,002 posts

276 months

Thursday 24th August 2006
quotequote all
Must admit, mine used to feel a tad light at the front over a ton, but It seemed to feel a lot worse in the wet.

I've had some new shocks fitted, and at speeds of over 130 it feels very stable.

My chin spoiler's never been on.

R8nan

Original Poster:

258 posts

255 months

Thursday 24th August 2006
quotequote all
What tyre pressure would you recommend? At the minute I have 24 front and 26 rear.

cossiemetro

1,092 posts

269 months

Thursday 24th August 2006
quotequote all
mine was a bit like that checked my tyres and they were all around 20 psi DOH!! I'VE PUT 26 FRONT 28 REAR i've not used the car since as its been p...ing down the last 3 days
and check for your chin spoiler as above

RUSSELLM

6,002 posts

276 months

Thursday 24th August 2006
quotequote all
I'm on standard 16's & the book says, 22 front, 24 rear.

Sustained high speed 25 & 28.

It doesn't mention if those are hot or cold though.

I've always assumed cold

Far Eastender

1,362 posts

247 months

Thursday 24th August 2006
quotequote all
I had a similar problem on the Autobahn this year. It was simply the tyre pressures, which had become uneven after a week of high speed driving. I made the fronts 26 and the rears 28.

R8nan

Original Poster:

258 posts

255 months

Thursday 24th August 2006
quotequote all
Chin spoiler is ok still in place. I will try tyre pressure at 26 front and 28 back.

olly

2,174 posts

313 months

Thursday 24th August 2006
quotequote all
I'm on 16's too (running the stock 22/24 front/rear(cold))and I have a chin spoiler.

Never noticed any problems over 100 (been the frightening side of 160 a few times & thats fine too). driving

peternib

98 posts

260 months

Thursday 24th August 2006
quotequote all
Hi Ronan,

Check your suspension is in good shape! just changed mine to TCS Pro tech and it is a different car!!!

One of mine was beginning to leak and it didn't fill me with confidence especially over 130

See you on track Monday

Peter

mad mark

2,345 posts

261 months

Thursday 24th August 2006
quotequote all
I would say those tyre pressures are too high. There was another thread that was on here recently about tyre pressures, check it out.

ridds

8,372 posts

273 months

Friday 25th August 2006
quotequote all
Mine felt loose with high pressures. Was very high at 28 Fr and Rr though.

Now running 23 front and 25 rear and is much better. Used to feel loose in a straight line around the dead ahead but dropping pressures has improved that greatly.

R8nan

Original Poster:

258 posts

255 months

Friday 25th August 2006
quotequote all
Changed the tyre pressure to 25 front and 24 rear after speaking to TCS and problem solved. Car is much more planted to the road and seems to grip the corners much better.
P.S Peter see you at track day on Monday, wouldnt mind seeing how your car is going with the Protechs on. By the way I have just put on a set of linked Decats from TCS, in a word BRILLIANT.

cossiemetro

1,092 posts

269 months

Friday 25th August 2006
quotequote all
oh oh