 tire air pressure question & VIDEO |
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| jimkelly |
  Sep 6 2015, 08:09 AM
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#1
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Delaware USA  Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region  |
I think I currently have 32 psi in all 4 tires. they are new and just installed. when I went for my first real drive to dmv, I can feel big slop in the rear handling/tracking. I may have some suspension tweaking to do, and car has not had an alignment, but I think 32 psi is far from being enough.
what do you guys think???? this is me pushing car side to side, showing tire sidewall movement. https://www.youtube.com/watch?v=aptbCK1rj6o |
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Replies(1 - 3)
| 914Mels |
Sep 7 2015, 11:00 AM
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#2
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Member Group: Members Posts: 357 Joined: 20-June 11 From: Santee Member No.: 13,221 Region Association: Southern California |
What is the recommended tire pressure spec molded into the tire say? Radial tires have fairly flexible side walls so a flex like that is probably normal. I wouldn't go above the max inflation pressure for the tire.
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| jimkelly |
Sep 7 2015, 11:16 AM
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#3
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Delaware USA Group: Members Posts: 4,969 Joined: 5-August 04 From: Delaware, USA Member No.: 2,460 Region Association: MidAtlantic Region |
looks like 51 psi is max. so I could try 40 psi and see if that helps. Dunlop sp sport 5000.
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| Mike Bellis |
Sep 7 2015, 12:19 PM
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#4
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Lots of variables like tire type and width. I run 35psi of nitrogen in 225/50/16 & 245/50/16. Nitrogen is more heat stable and is a large molecule so tends to leak less then standard air.
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