What are you guys running for tire pressure?

Pokerplayer said:

Folks,

Just curious what everyone is running on their stock 19's on the RR.

I know that the manual states 36 F and 44 R which I have been running.

For some reason when I picked up the car at the dealer they it had 38F and 46 R and I deflated them accordingly.

Probably it was just me, but it felt like it rides better plus 2 psi from suggested?

Thanks,
Mike

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I have XL Tyres and am running 36psi all round while its snow/icy on Vinnimans advice `)

33 front 35 rear for 18 inch;makes so smooth.
once it was 40f-45r even its affect was less then it shold be.
The manual states 36-44?Mine doesn't.

There is a sticker on the drivers door shut that gives you the correct pressures with different loads etc.

If you change away from these ratio's you can damage the differentials. Obviously a 45PSI tyre is larger than a 35PSI tyre so the 35PSI has to rotate more to cover the same distance. The center diff has to allow for slip when turning etc but constant slippage is not good.

This is a known issue with te P38 and the 89-95 classic (with the limited slip diff) on the P38 you can get a shudder from the drivetrain as a warning that all is not well. This isn't a "known issue" with the L322 but working on the same principles as every other 4wd with a limited slip diff it will still suffer from the same problem.

Bare in mind though it's the ratio that must stay the same, it doesn’t actually matter what pressure you use. So if you like it soft, knock 2psi off front and rear or vise versa and you should be safe.

Dan

Good info Dan thanks,
45 was an idiot service boy's job.
I rado a couple days with it.
Ratio subject is interesting.

So Dan

I may sound a moron , but just to be sure , the most important thing is to keep the spread between the front and the back , and not the exact pressure requested .
Did i get it right ?

Jaybear . 8~

jaybear said:

So Dan

I may sound a moron , but just to be sure , the most important thing is to keep the spread between the front and the back , and not the exact pressure requested .
Did i get it right ?

Jaybear . 8~

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Well, the L322 is supposed to have the same tyre pressures front and rear, 36 & 36 according to the manual. But 36 and 44 if you’re fully loaded – what this does is as the tyre squashes down with the extra load it then has the same rolling radius as the fronts. But like I said if you fancy a firmer or softer ride adjust accordingly, but also according to the load you have...

I definitely am a moron !!!
thanks a lot Dan ;
Jaybear :thumb:

But doorside label says 33-36;not equal pressures.

umitbat said:

But doorside label says 33-36;not equal pressures.

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I know, odd. I think i'll go with the sticker on the car (incase they changed it without printing a whole load of new manuals etc)

Mine says 26 front 42 rear but they ONLY give you fully loaded pressures on the car sticker! I am very rarely fully loaded normally just me or me and the wife & two small kids (boot empty)

I will jack up pressures for fully loaded ski trip though.

Surely when driving empty having higher pressure in the back is silly as the engine & driver are up front????

Please read above 36 and 42

And WTF are 175/80 R19's!!!!! - 60psi on every wheel :?

Gazellio said:

And WTF are 175/80 R19's!!!!! - 60psi on every wheel :?

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That's the space saver :snooty:

Dan_UK_1984 said:

Gazellio said:

And WTF are 175/80 R19's!!!!! - 60psi on every wheel :?

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That's the space saver :snooty:

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Clever Dick :roll:

Dan,

So are we agreed that the correct pressures are 33 front and 33psi back for normal every day use? `8)

I hate this NO EDIT sh*t.....

I meant 33psi front and 36psi Back....

ADMINS why can't we have 30 seconds to edit posts like most sensible forums. This would not effect the validity of the forum as after 30 seconds the change to change has gone.