T350C handling issue

[Talksteer]

I seem to be getting a new issue with my car. When I turn in I get a small amount of passive rear steer as the car's suspension compresses, this is much worse should I hit a bump.

Has anyone else had this issue?

I will be getting the geometry checked however I do have a concern it will turn out to be something more annoying like suspension bushings something similar!

[Buzz Billsberry]

Worn bushes, loose wheel nuts for starters

Buzz

[spongy]

I had this issue about 2 months back....hoping new back tyres cure the problem as the geo set up was bang on.will know when car comes back next week

[spitfire4v8]

Sounds very much like bottom wishbone bushes. The spring/damper is mounted at the front of the lower wishbone, it's also inclined so imparts an increasing toe-out lateral load component on the lower wishbone as the suspension compresses.

[Walford]

Talksteer said:

I seem to be getting a new issue with my car. When I turn in I get a small amount of passive rear steer as the car's suspension compresses, this is much worse should I hit a bump.

Has anyone else had this issue?
!

How do you know, you are getting passive rear steer

[Talksteer]

Walford said:

Talksteer said:

I seem to be getting a new issue with my car. When I turn in I get a small amount of passive rear steer as the car's suspension compresses, this is much worse should I hit a bump.

Has anyone else had this issue?
!

How do you know, you are getting passive rear steer

I seem to get a double turn in after the car settles, I know the geometry is out due to odd tyre wear so it could be some odd bump steer. I'm getting a full geometry re-alignment on Wednesday hopefully this should sort the car out if it doesn't then I'm going to start looking at bushes and shocks.

[Targarama]

Before you do anything else please tell us what your tyre pressures are.

The correct answer should be 24-25 PSI cold.

T.

[black11s]

Targarama said:

Before you do anything else please tell us what your tyre pressures are.

The correct answer should be 24-25 PSI cold.

T.

What should they be hot?
Are the figures above specifically for any particular brand?
I run Conti Sports on mine.

Personally, on a race car I can tell 3-4psi difference in tyre pressures, but I have no idea what my road car should be set at!
Guidance much appreciated.

[7 TVR]

Targarama said:

Before you do anything else please tell us what your tyre pressures are.

The correct answer should be 24-25 PSI cold.

T.

Does that not depend on the tyre make? ie Toyo888 stiffer side wall = Lower pressure
Conditions etc

[Targarama]

7 TVR said:

Targarama said:

Before you do anything else please tell us what your tyre pressures are.

The correct answer should be 24-25 PSI cold.

T.

Does that not depend on the tyre make? ie Toyo888 stiffer side wall = Lower pressure
Conditions etc

Of course. But the majority of T cars wear normal road rubber so I made an assumption.

[Targarama]

black11s said:

What should they be hot?
Are the figures above specifically for any particular brand?
I run Conti Sports on mine.

Personally, on a race car I can tell 3-4psi difference in tyre pressures, but I have no idea what my road car should be set at!
Guidance much appreciated.

I'm pretty hamfisted and I can tell the difference between 24psi and 26psi in my T350 on the first bend I come to, and that was when I had std suspension. 28-30psi feels like driving on ball bearings.

I'll let the more track hardened owners give any more detailed advice.

T.

[leef44]

Targarama said:

I'm pretty hamfisted and I can tell the difference between 24psi and 26psi in my T350 on the first bend I come to, and that was when I had std suspension. 28-30psi feels like driving on ball bearings.

I'll let the more track hardened owners give any more detailed advice.

T.

+1

24psi works for me on my T350. The tyre company that fitted mine had put 32-34psi. I thought someone had turned my gaz pro golds up a few clicks.