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Old 27-06-2011   #1
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full load tyre pressure

Hi I have lost my manual and need to know the tyre pressures for full load punto . It's an 8v 1.2 x reg elx
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Old 27-06-2011   #2
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Re: full load tyre pressure

165/70/14 2.2/2.1 bar front/rear
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Old 27-06-2011   #3
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Re: full load tyre pressure

sorry but shouldnt the rear by 2.2 instead of 2.1? and the front is 2.1??
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Old 27-06-2011   #4
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Re: full load tyre pressure

No the front is 2.2 , rear 2.1. Dont forget the spare , 2.8.
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Old 27-06-2011   #5
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Re: full load tyre pressure

I just dont see how that makes sense, surely you need more in the back seeing as there will be 3 people sitting in it? :P
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Old 27-06-2011   #6
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Re: full load tyre pressure

and can anyone else confirm?
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Old 27-06-2011   #7
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Re: full load tyre pressure

Quote Originally Posted by brendanb581 View Post
I just dont see how that makes sense, surely you need more in the back seeing as there will be 3 people sitting in it? :P
People sit between the axles, engine & gearbox sit above front axle so needs to have a bit more in the front tyres. Some cars have the same front & rear but I've never known any Front Wheel Drive car have more pressure in the rears versus the fronts.
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Old 27-06-2011   #8
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Re: full load tyre pressure

so is 2.2 in the front and 2.1 in the rear sound about right for 5 people??
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Old 27-06-2011   #9
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Re: full load tyre pressure

That sounds about right. Over inflation will reduce the contact patch size & could cause the car to lose traction, it also causes heavier wear on the centre of the tyres. Under inflation causes quicker wear on the outside edges.
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Old 27-06-2011   #10
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Re: full load tyre pressure

Scout's honour those numbers are good - fyi they drop back to 2.0/1.9 front/rear for a thing called a 'medium load' in the handbook. Mystic Meg?
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Old 27-06-2011   #11
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Re: full load tyre pressure

Thanks guys
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Old 27-06-2011   #12
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Re: full load tyre pressure

I run at 32 psi front and 28 to 30psi rears Unloaded
No real problems with Traction at all
When loaded up the car seems to be fine as well

32psi fronts give me better tyre wear tho - and grips alot better

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Old 27-06-2011   #13
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Re: full load tyre pressure

Quote Originally Posted by brendanb581 View Post
Hi I have lost my manual and need to know the tyre pressures ...
If (like me) you’re not good at recalling tyre pressures – you can reasonably work `backwards.’ Check the max pressure on the tyre sidewall - & knock-off (say) 20%. For example, my tyres read *50 psi max - & I find this a good memory aid to then inflate to 40 psi.

But I say `reasonably’ as it does require some prior knowledge. (I’ve heard of the max less 10% guide - but that’s a little too hard for my taste).

Just out of interest – what is the max pressure given on your sidewall when compared with the given OH figure?

*225/45ZR18
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Last edited by Caravadossi; 27-06-2011 at 17:47. Reason: +
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