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What tyre pressure for 235/45R17 tyres? 

 

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 Post subject: What tyre pressure for 235/45R17 tyres?
Posted: Tue Feb 21, 2006 9:35 am 
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What tyre pressure for 235/45R17 tyres?

 

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Posted: Tue Feb 21, 2006 9:39 am 
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Depends!
Do you drive like a lunatic?
Prefer feel over comfort?
I'd say something around the 38psi cold mark, that's what I'd have.
I've got 40psi in my rear 225/50 R16s and 35psi in the fronts.

 

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Posted: Tue Feb 21, 2006 10:08 am 
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when i had my steelies on about 3 years ago now i started at 35psi, and kept increasing the pressure and found i liked them at 40psi.
why do you have more psi in the reaR? wouldn't it be the opposite as the front has more weight?

 

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Posted: Tue Feb 21, 2006 10:26 am 
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twr7cx wrote:
when i had my steelies on about 3 years ago now i started at 35psi, and kept increasing the pressure and found i liked them at 40psi.
why do you have more psi in the reaR? wouldn't it be the opposite as the front has more weight?

Yeah usually, but I got LPG, amps, sub, plus I was getting a bit of understeer.
Less pressure (to a point!) more forgiving, bit more 'grip'.
More pressure (again, to a point) the opposite.

 

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Posted: Tue Feb 21, 2006 2:09 pm 
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i run 38 in mine

 

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Posted: Tue Feb 21, 2006 8:56 pm 
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I run 40 in mine

 

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Posted: Tue Feb 21, 2006 10:36 pm 
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36 is about the norm.

 

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Posted: Wed Feb 22, 2006 12:56 am 
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35-36 in the front.
when loaded up I run between the 38-40psi mark in the rear (ute) .. usually 38psi though.

I have even wear over all tyres .. and I do heavy load driving and towing all of the time.

I run Sava Intensa tyres (235/45R17s) and I have done close to 40,000km on this set of tyres and I still have 50% tread left all round.

I make sure my alignment is right regularly and rotate them when needed ... also I don't abuse my tyres .... except for loading them up.

 

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Posted: Wed Feb 22, 2006 3:25 am 
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I run all of them with 40psi at the front.

Tyre guy told me "38, but don't be afraid to pump them up"

 

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Posted: Sun Jun 04, 2006 3:01 am 
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Hmm, ive got 225,s and was told by the mechanic to do around 32, does that sound right? some people say 36 all round, some tell me to have a little more on the driving wheels, who should I believe? :?

 

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Posted: Sun Jun 04, 2006 3:11 am 
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45 rears, 40 on the front.

 

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Posted: Sun Jun 04, 2006 3:45 am 
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s**t fnp....bit of petrol saving there?

i run mine on 40 all round.

phong =P~

 

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Posted: Sun Jun 04, 2006 9:15 am 
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phongus wrote:
s**t fnp....bit of petrol saving there?

i run mine on 40 all round.

phong =P~


Car feels nicer like that.. last track day I ran 55 in the rears :D but the ride just gets a bit too figety then (running over white lines can hurt lol)

 

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Posted: Sun Jun 04, 2006 12:00 pm 
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Ahok, I'll try out the 45 on rears and 40 on fronts, thanx Fnp.

Thanx,
Mick

 

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Posted: Tue Jun 06, 2006 9:59 pm 
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55? your a crazy man you know that :/ with low profile tyres you should keep them around the 38 to 40, for the 16's an lower id say around the 34- 36 or 32 on the light cars


not to sure about the45 an 55 idea. theyll go kaboom :) well the wont really but yea id use 45 tor a trailer that is constantly fully loaded with light truck tires, tyres designed to take more psi an with a higher ply rating

 

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