Help with tyre pressures please
Thread Starter
Senior Member
Joined: Aug 2002
Posts: 267
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From: U.K.
SL55
Help with tyre pressures please
Help with tyre pressures please.
Hi all,
I see lots of posts recommending different tyre pressures. Some as per the fuel flap, some higher. What is the general consensus of opinion please?
I’m talking about road use not racing or track work.
Thanks Graham.
Hi all,
I see lots of posts recommending different tyre pressures. Some as per the fuel flap, some higher. What is the general consensus of opinion please?
I’m talking about road use not racing or track work.
Thanks Graham.
Member
Joined: Jul 2002
Posts: 186
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From: The PJ's
an import
Depends on what type of ride you want.
There's nothing wrong with following the pressures stated on the fuel lid, but this really give you a soft, less responsive ride. I typically keep the pressure at 45 psi (hot) for some extra road feel.
There's nothing wrong with following the pressures stated on the fuel lid, but this really give you a soft, less responsive ride. I typically keep the pressure at 45 psi (hot) for some extra road feel.
Guest
Posts: n/a
Originally posted by Fanatic
Depends on what type of ride you want.
There's nothing wrong with following the pressures stated on the fuel lid, but this really give you a soft, less responsive ride. I typically keep the pressure at 45 psi (hot) for some extra road feel.
Depends on what type of ride you want.
There's nothing wrong with following the pressures stated on the fuel lid, but this really give you a soft, less responsive ride. I typically keep the pressure at 45 psi (hot) for some extra road feel.
Thread Starter
Senior Member
Joined: Aug 2002
Posts: 267
Likes: 0
From: U.K.
SL55
?????????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
Guest
Posts: n/a
Originally posted by London Lad
?????????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
?????????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
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Joined: Apr 2002
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asdf
Originally posted by London Lad
?????????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
?????????
You can see why I started this thread; there are so many different views.
I always understood that too high a pressure caused premature wear in the centre of the tread width and too low pressure, premature wear on the outside edges.
Therefore the 'correct' pressure for a given tyre on a given vehicle would be the one that allows the tread to run pressed flat on to the road across its full width.
Any more views ??????
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Joined: Sep 2002
Posts: 159
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From: Boston Ma.
2017 S63 Cabriolet Black With Porcelain 2019 Range Rover Velar Special Edition
tire pressure
I never run my tires over 30 psi on my 97 sl 45,000 miles 17" evo style wheels Michelins just started to wear out . My 2003 sl 500 ran that car at 29 psi once you go under 30 the ride comfort increases dramaticaly, with out any tire sag i never scalloped tires nor wore them out pre-maturely.I like the low profile look but can;t stand the harsh ride, lower tire pressure is the sollution.
Give it a try you'll see what i mean.............
Give it a try you'll see what i mean.............
MBWorld Fanatic!
Joined: Jan 2002
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From: San Francisco, CA
1996 C36 AMG, 1995 Volvo 850 Turbowagon
sometimes...too high can be prone to pothole damage also. if u can't decide who to listen...high psi or low psi...something in the 36~38 psi range is a good compromise...
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asdf
Originally posted by steve s
sometimes...too high can be prone to pothole damage also. if u can't decide who to listen...high psi or low psi...something in the 36~38 psi range is a good compromise...
sometimes...too high can be prone to pothole damage also. if u can't decide who to listen...high psi or low psi...something in the 36~38 psi range is a good compromise...
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From: San Francisco, CA
1996 C36 AMG, 1995 Volvo 850 Turbowagon
this is something from tirerack's website
air inside ur tire supports the weight of the vehicle and it's load. if u set it too low...there isn't enough air to properly support the weight. it also becomes prone to damage and over-heating. the load that was supposed to be picked up by the air is now being picked up by the tire and probably the rim.
if u have too high a pressure, well, that leads to a weaker tire as well. think of it this way. if u have a balloon that's inflated about halfway, it's got just enough resilience that when u use a pin and gently push against it, it will give a little, but also push a back little and not break. if u have a balloon that's inflated to max, take a pin to it, it breaks immediately... something like that..
Overinflation
If your tires are overinflated by 6 psi, they could be damaged more easily when running over potholes or debris in the road. Higher inflated tires cannot isolate road irregularities well causing them to ride harsher. However, higher inflation pressures usually provide an improvement in steering response and cornering stability up to a point. This is why participants who use street tires in autocrosses, track events and road races, run higher than normal inflation pressures.
If your tires are overinflated by 6 psi, they could be damaged more easily when running over potholes or debris in the road. Higher inflated tires cannot isolate road irregularities well causing them to ride harsher. However, higher inflation pressures usually provide an improvement in steering response and cornering stability up to a point. This is why participants who use street tires in autocrosses, track events and road races, run higher than normal inflation pressures.
if u have too high a pressure, well, that leads to a weaker tire as well. think of it this way. if u have a balloon that's inflated about halfway, it's got just enough resilience that when u use a pin and gently push against it, it will give a little, but also push a back little and not break. if u have a balloon that's inflated to max, take a pin to it, it breaks immediately... something like that..
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asdf
Originally posted by steve s
this is something from tirerack's website
air inside ur tire supports the weight of the vehicle and it's load. if u set it too low...there isn't enough air to properly support the weight. it also becomes prone to damage and over-heating. the load that was supposed to be picked up by the air is now being picked up by the tire and probably the rim.
if u have too high a pressure, well, that leads to a weaker tire as well. think of it this way. if u have a balloon that's inflated about halfway, it's got just enough resilience that when u use a pin and gently push against it, it will give a little, but also push a back little and not break. if u have a balloon that's inflated to max, take a pin to it, it breaks immediately... something like that..
this is something from tirerack's website
air inside ur tire supports the weight of the vehicle and it's load. if u set it too low...there isn't enough air to properly support the weight. it also becomes prone to damage and over-heating. the load that was supposed to be picked up by the air is now being picked up by the tire and probably the rim.
if u have too high a pressure, well, that leads to a weaker tire as well. think of it this way. if u have a balloon that's inflated about halfway, it's got just enough resilience that when u use a pin and gently push against it, it will give a little, but also push a back little and not break. if u have a balloon that's inflated to max, take a pin to it, it breaks immediately... something like that..
MBWorld Fanatic!
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From: San Francisco, CA
1996 C36 AMG, 1995 Volvo 850 Turbowagon
if u blow a tire, all the air gets let out. on a tire that gets blown out by the a pothole, the sidewalls are usually damaged. sometimes, even if it's not totally damaged, u may see a bulge in the side of the tire wall. the inner steel belt (giving radial tires their strength) most likely has been broken and the rubber is the only thing that is keeping the tire together, so u'll c a bulge. how does that happen? when u hit a pothole too hard, the air gets pushed all the way to the other side of the tire, so instead of the air inside the tire cushioning the impact, all u have is the tire being squished real fast. the tire is now in between the pothole edge and the rim, and breaks. the pothole has now hit the rim, and that's how u get bent rims.
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In addition to that, if you ride on over inflated tires like the balloon example above, you're more susceptible to catastrophic blow outs. Have one of these at highway speed, and your rim is more likely to get damaged...unless you have some cool rally/race rims that are meant to be ridden on just in case of a blow out.
