Tyre Pressure on Boxster

[valcax]

I need to know the accurate tyre pressure for boxster 2.5 MY99, manual transmission. 225/40ZR18 and 265/35 ZR18 Pirelli Pzero Rosso N4.

Now I put 2.0 front and 2.5 rear, but I am not sure because my accident and rear center tyres is consumed, however edges are brand-new. (overpressure?)

A web by delticom holds correct pressures are 2.0 front and rear for boxster 2.5 wheel 18".

I would estimate all your help.

Regards.

Edited June 14, 2005 by valcax

[LVDell]

Does your car have a manual?

[ahn]

Factory specs are 29(psi) front, 36(psi) rear...

[valcax]

Does your car have a manual?

<{POST_SNAPBACK}>

No, it came from Germany.

Factory specs are 29(psi) front, 36(psi) rear...

<{POST_SNAPBACK}>

In bar?

[Stefan]

29 psi = 2.00 bar

36 psi = 2.48 bar

but many people recommend higher pressure in the front, usually around 32 psi (2.21 bar)

[valcax]

29 psi = 2.00 bar

36 psi = 2.48 bar

but many people recommend higher pressure in the front, usually around 32 psi (2.21 bar)

<{POST_SNAPBACK}>

Why?

[LVDell]

Does your car have a manual?

No, it came from Germany.

Having the car come from Germany doesn't mean the car wouldn't come with a manual. It was a simple question if you had one or not. Since you don't have one I would STRONGLY SUGGEST you get one so that you can answer basic questions about how the car is supposed to be taken care for.

[valcax]

Does your car have a manual?

No, it came from Germany.

Having the car come from Germany doesn't mean the car wouldn't come with a manual. It was a simple question if you had one or not. Since you don't have one I would STRONGLY SUGGEST you get one so that you can answer basic questions about how the car is supposed to be taken care for.

<{POST_SNAPBACK}>

dont worry, I have manual from renntech.org. but its MY03, only some things are different.

[LVDell]

trust me....I'm not worried. By the way, there is also a sticker under your front hood that will have the rec'd tire pressures as well.

[Stefan]

The reason people recommend 32 psi (2.21 bar) in the front is that it makes handling more neutral (reduces oversteer). I tried it and I completely agree and prefer the higher pressure in the front. YMMV.

[Donie]

Valcax,

If the center of your rear tyres is worn and the edges are still good then the pressures are far too great, and this is almost certainly the reason that the car 'spun off' in a curve in the accident you mentioned in an earlier post

[valcax]

Valcax,

If the center of your rear tyres is worn and the edges are still good then the pressures are far too great, and this is almost certainly the reason that the car 'spun off' in a curve in the accident you mentioned in an earlier post

<{POST_SNAPBACK}>

I still dont understand. I use a new Pressure Gauge by Michelin and it marked 2.0bar front and 2.5bar rear in cool (recommended by Porsche)

The only thing I can do is to buy a new digital pressure gauge and compare...

Could it be by geometry quota ?

[Stefan]

How many miles did you have on your tires when the accident happened? I ask because new tires are slippery until they get scuffed (typically 50-100 miles/80-160 km).

[valcax]

How many miles did you have on your tires when the accident happened?  I ask because new tires are slippery until they get scuffed (typically 50-100 miles/80-160 km).

<{POST_SNAPBACK}>

13.000 kms