Tyre Pressure

[Modena]

Ive had my car (stock wheels) sittign on 30 PSI (?). I noticed the car didnt roll too well when up on a hill. Because I drive a lot on freeways I pumped my tyres up to 40 PSI... the car rolls much better now and I am getting better economy, I know that I now should take care in the wet as the tyres are not as grippy.

Whats your tyre pressures?

[siddr20]

For stock rims i found 32 front, 30 rears (300zx rims) the best

But then again i didnt drive around with much thread.. maybe 2mm max on rears.. Plus my tyres were old.

Anyways i have pumped the fronts to 38 once and it seemed fine.

I do a lot of freeways also, but cant tell the difference on highways tho lol

Got 235s on fronts now with 30psi pressure.. Seems fine

Edited August 19, 2006 by siddr20

[Spook's_Skyline]

yer, ive used higher pressure with my tyres 235/45s on front and 265/35s on back

car seems to prefer it that way

usually 36/38

[blind_elk]

I'm running 36 all round, because that's what the manufacturer recommends (B/S Potenza G III, 235/45x17).

When it's wet, INCREASE front tyre pressures - holds the tread open for better water dispersion.

[abcent]

your tyre will have a max pressure written on it somewhere, so long as you dont go over that your ok.

But generally I run 35psi an the car handle's well!

In my daily driver VL como I run 40psi (has 17's) an it seems to ride/handle fine too, in wet an dry.

[nuffsaid]

SK recommends 32/30

Im running 34 front 32 rear, hope that is okay.

Just realised I was running 45psi for the past 2 months, dodgy petrol station air compressor!!

[blind_elk]

Just realised I was running 45psi for the past 2 months, dodgy petrol station air compressor!!

That's the reason for owning your own tyre gauge - at least it will be consistent between servos.

[nuffsaid]

That's the reason for owning your own tyre gauge - at least it will be consistent between servos.

You're telling me dude!

I hope not much damage was done to the tyres, no wonder why the ride was crap.

I got back from overseas for 2 months and figured I needed to check pressures and so I did, unbeknown to me the servos automatic tyre pressure thingo was not accurate

[T04GTR]

for normal street tyres, whether it be 80 dollar re treads or 1000dollar p-zeros you shold inflate the tyres to what the manufacturer recomends.

for track tyres 30 to 32 is the norm.

all presures shold be done when the tyre is hot

[Modena]

It says that stock 16 inch wheels should run 36 PSI... I guess 40 PSI wont hurt.