Tyre Pressures For Falken Azensis Rt215

[R32zilla]

I have been told:

Run lower on front than back

Run softer suspension on front than back

Suggestion:

18PSI front hot

22PSI rear hot

sounds low to me...

[djr81]

I have been told:

Run lower on front than back

Run softer suspension on front than back

Suggestion:

18PSI front hot

22PSI rear hot

sounds low to me...

I think you should go and see whomever gave you this "advice".

And slap them.

It is so wrong as to be laughable.

[Beer Baron]

lol, that advice is so far from anything usefull.

if we are talking track use look to run around 30-35psi front and rear HOT (probably start about 28-32 cold). if we are talking street use then around 36-38 is good.

as for softer suspension on the front and harder on the rear. that is absolute rubbish advice. if anything the opposite is true.

same goes for running the car lower at the front. Run the car either even height F+R or slightly higher at the front is the way to go for a GTR.

[sav man]

is that a cold temp? I drop my Dunlops down to ~20 and that ends up to around 32 when they warm up.

[R32zilla]

thanks for the help guys,

one other thing , should you adjust pressures (up/down) for ambient/track temp differences?

[djr81]

You adjust pressures to obtain (To the extent you can) the best possible temperature gradient across the tread face, ie to even out the temperature at the inner, middle & outer edge of the tyre. This is hopelessly complicated by the (for example) different amounts of camber induced by braking as against cornering.

The second reason is to do with needing to generate temperatures at all. Sometimes too high a pressure will not allow proper temps to be developed on low grip surfaces.

The third reason relates to the tyre construction & maintaining the requisite pressures to allow it to work. This is most commonly shown up by massive vibration when cornering on cold/underpressured tyres.

The fourth reason relates to how many laps you want to do & when you need the tyre to achieve it peak grip (Assuming you are not running valves that allow a constant pressure to be maintained.)