Handling Woes..

[Sidewaysanchez]

Hi everyone, I've just spent the weekend at the Ring, did 4 laps and the car felt terrible.

Spec is - cup dampers all round, cooksport springs, camber bolts on the front, 10mm axle spacers with 1° camber shims, Michelin pilot sport 3 tyres on 15 inch alloys.

It has 2° camber all round, std toe front and rear, car feels terrible, front end feels like its floating, no feel, cant tell whether or not it's going to slid off the road or grip???

What am I doing wrong????

 

[robzracing]

What tyre pressures were you running? When you say standard toe, what is it exactly? Have you had an alignment done?


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[Sidewaysanchez]

32psi all round on a very cold wet track, asked for toe to be set to factory

 

[robzracing]

A cold wet track certainly wouldn’t help of course.
Most people that race Clios run with toe out rather than toe in.
Personally I run about 10’ toe out on the front and zero toe on the rear.

Difficult to know for sure without seeing the car.
I assume all your bushes are good?
Steering rack bushes are prone to failing, that would make your steering feel vague too.


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[chris blue]

32psi in mine would make it feel like its on an ice rink, unstable
I drop to 26psi hot

 

[robzracing]

32psi in mine would make it feel like its on an ice rink, unstable
I drop to 26psi hot

I find 30psi hot is optimum but his problem was get any heat at all into the tires on a cold wet track but you may be right, possibly a bit lower would have worked. I beleive they had snow at the Ring this weekend. When it gets cold there it gets really cold!

 

[stu8v]

Bin the spacers. They'll do you no good for a start.

 

[JamesBryan]

Most wrong with that alignment.

Must be something else.

32psi would have increased a bit over the lap. Would have been tempted to start at like 26/27.

 

[Eddie555]

This is the setup sheet for mine. Looking at yours, it appears your caster angle is a lot less. I had a similar issue with my caster in that I accidentally fitted non cup wishbones on, Ive since replaced my wishbones with Cup ones. I also did the Nurburgring on this setup although it was nice weather and I’m running Toyo R888r. I’ve also done Bedford on this setup and my car handles like it’s on rails. Loads of feed back and very direct. I will add though all of my bushes have been replaced by Powerflex black edition including the steering rack. Oh and I run 16mm hubcentric spacers on the front and 10mm rear axle spacers.

 

[PhillipM]

As above, castor angle wants looking at, that seems too low for a track car, I'm guessing the front doesn't self centre very well either?

 

[Usr117063]

Subframes have different caster as well?

 

[Clio182mike]

I reckon castor angle as well. It needs increasing so the bottom ball joints go more towards the front on the car. This will increase the self centering of the steering wheel as well.