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Old 3rd March 2008, 11:29   #676
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According to the sticker on the car, the recommended is 33/36.

Seems just too much difference between that and 30 all round.
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Old 3rd March 2008, 11:31   #677
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Quote:
Originally Posted by Thad E Ginathom View Post
According to the sticker on the car, the recommended is 33/36.

Seems just too much difference between that and 30 all round.
True. But thats for 165/80/14 tyres na.
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Old 3rd March 2008, 11:47   #678
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Yes its for 165's, if someone can check what Zxi with 185 tyres carry, it would be helpful.

Lesser Psi i agree but not sure on 6 Psi drop?
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Old 3rd March 2008, 12:23   #679
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Hi,

> @trrk - So no need to take out the tyres .

Exactly.

With unidirectional tyres, it is best not to involve your spare for tyre rotation. Rotation is restricted to switching axles only.

So it is best to have a bidrectional spare which can be used for either side.
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Old 3rd March 2008, 12:26   #680
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Hi abhilash,

> But thats for 165/80/14 tyres na

The above size tyres are doing duty in my Marina in the front axle and are running 28psi.

Nicely filling up the wheel well and gives a better ride.
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Old 3rd March 2008, 12:36   #681
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Quote:
Originally Posted by trrk View Post
Hi abhilash,

> But thats for 165/80/14 tyres na

The above size tyres are doing duty in my Marina in the front axle and are running 28psi.

Nicely filling up the wheel well and gives a better ride.
In fact I wanted to ask you the story behind up-sizing the front tyres only. Hearing it for the first time. But it is to be discussed in a new thread, i believe.
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Old 3rd March 2008, 13:29   #682
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Guys size of the tyre alone is not the reasoning behind correct air pressure. It has lot of other factors involved also Car Bibles : The Wheel and Tyre Bible Page 2 of 2 can throw in some idea
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Old 4th March 2008, 06:49   #683
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@jaggu - Well even though he did not know , I reminded him that the engine being on the front the load is more on the front tyre. He said that it is not much of a bother as the tyres can take it. Dont you think lower tyre pressure would mean lesser jerks , vibrations being transmitted to the engine and thus increased engine life ?

Also what exactly may happen if you are maintaining a low psi and hit a pot hole at high speed ?
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Old 4th March 2008, 07:02   #684
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Quote:
Originally Posted by nikunj_cal View Post
Also what exactly may happen if you are maintaining a low psi and hit a pot hole at high speed ?
Simple, a bent wheel rim
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Old 4th March 2008, 10:36   #685
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Quote:
Originally Posted by jayz View Post
Simple, a bent wheel rim
Yes but If u mantain a high pressure and hit the pot hole at high speed you may end up with a cracked rim ! My question was what will happen to the tyre ?
Hitting a pot hole at high speed irrespective of the pressure is never good for your rims !!
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Old 4th March 2008, 10:54   #686
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Tyre sidewall can get damaged with low pressure. And your theory on engine taking the beating coz of higher air pressure doesnt work for me.

See at the end of the day, if you are happy with the car at 30 psi, run that. For me after experimenting 34-32 gives the best performance based on my taste.
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Old 4th March 2008, 11:12   #687
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@nikunj, wondering if you missed this thread:
http://www.team-bhp.com/forum/tyre-a...rs-lately.html (Tyre pressure, have you checked yours lately?)
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Old 4th March 2008, 12:06   #688
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Quote:
Originally Posted by Jaggu View Post
See at the end of the day, if you are happy with the car at 30 psi, run that. For me after experimenting 34-32 gives the best performance based on my taste.
I am also sticking to 34 front and 32 rear after trying out various other options. I am on JK tyres (Stock).
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Old 4th March 2008, 12:45   #689
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Quote:
Originally Posted by condor View Post

Actually I did not , I did scan the thread after my discussion with the good year agent , now I am googling the same to see if there are any psi specs released by good year itself!
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Old 4th March 2008, 13:52   #690
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Quote:
Originally Posted by nikunj_cal View Post
Yes but If u mantain a high pressure and hit the pot hole at high speed you may end up with a cracked rim ! My question was what will happen to the tyre ?
Hitting a pot hole at high speed irrespective of the pressure is never good for your rims !!

In an underinflated tyre the sidewalls will be geting damaged due to excessive flexing, and it also reduces the tire life.
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