Steering Light

[southwd1]

Does anyone's steering get quite light when travelling at over speeds of say 85 + mph.

I checked my tyre pressures and they are a tad under inflated but i prefer that as it gives that bit more grip.

Regards David

 

[Black80XSA]

Underinflated tyres - i would never run under stock pressures, but thats your choice. Underinflation is far worse than overinflation in wet and ddry handling/braking situations.

Unless you are using a 'good' quality pressure gauge (ie £20 and upwards) then borrow another one from a neighbour and double check - never trust garage forecourt gauges either. You'd be surprised how inaccuarte cheaper gauges can be, and don't assume digital readout ones are better; they are often far wore than old style dial gauges.

Have you checked all the flaps and spoilers at the front of the car ? They can easily be broken by road debris and peed ramps, they do make a difference to high speed stability - not sure how much they would affect steering but worth a quick look, and cheap to replace from the OPC.

 

[southwd1]

Flaps & spoilers - theres a couple next to the front wheels but are there anymore.

Regards

 

[childish]

Had a similar problem with my 996, that speeds over 90+ would make the car light and slightly unstable. I had delaminated/ worn brushes on my traction control arms this was giving the car lateral movement at high speeds but it was fine at low speeds.I also had a four wheel alignment done and found the toe and camber of the front tires and back tires to be out. Anyway after I had it done the car felt like a brand new car on the way home.[]

 

[SteveW14]

ORIGINAL: southwd1

Flaps & spoilers - theres a couple next to the front wheels but are there anymore.

Regards

2 at the front (1 in front of each wheel) 2 at the rear in the middle of the car, as someone has already mentioned easy to catch and damage them, but at least they're cheap to replace.

 

[keith phillips]

I had the same worry when I bought my 2000 2.7 last year. Think it was because I was used to a front engine front wheel drive car.
Did some research at 149 mph total lift is 50kg which is split 32kg front and 27kg at the back. Front is lighter at higher speed which increases understeer which is ment to be desirable.

hope this helps

 

[channella]

ORIGINAL: Black80XSA

Underinflated tyres - i would never run under stock pressures, but thats your choice. Underinflation is far worse than overinflation in wet and ddry handling/braking situations.

Depends on the extent doesn't it? On a track day tyre pressures increase by, say 8psi, are they then overinflated? The pressue in each tyre needed to support the car doesn't change. Remember the "stock" pressures have to be a compromise, between fuel economy, grip and handling and tyre wear.