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what psi is right?

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Old Dec 17, 2002 | 12:13 AM
  #1  
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From: Los Angelos
what psi is right?

i have 235/19 and 265/19 AVS's on my car and on the tire it says the max PSI is 50. on the fuel door it says 33 for rear and 32 for front. Is the meas on the fuel door only for OEM tires? what psi should i have on my current tires? tha
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Old Dec 17, 2002 | 12:49 AM
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2002 C230 : 2007 C230
I would run 40psi @ all 4. That's what I'm runnig on my 18" staggered setup. Too low and it's easy to bend a wheel
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Old Dec 17, 2002 | 09:15 AM
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depends on the weather
folow the recommendation on the fuel door .... because the air inside your tires is what supports the car and the weight of the car has not changed.
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Old Dec 22, 2002 | 03:04 PM
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'01 C320 SS
I agree with Kwik. Running 40psi will: provide increased handling response and better protection against rim lip damage, at the expense of a "firmer/noisier" ride. Choose carefully by riding at factory and then at 40 psi on the same road circuit. If you are a poser or are upgrading for looks...take Luke's advice.
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Old Dec 23, 2002 | 02:35 AM
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1998 C43
Luke:

What is the difference in weight between a 18 inch AMG Monoblock (18x8, 18x9) and the stock 17's? Just curious.

Also, could you give me a quote on the AMG 22 spoke wheel? The one on the SL, cant find a price on the site.

Thanks

DLS
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Old Dec 23, 2002 | 01:52 PM
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Just curious is there a recommended psi for running a staggered 19"s?

thanks!
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Old Dec 24, 2002 | 01:26 AM
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CLK320 (w209)
This is confusing.

My fuel door reads, 28/29 psi front/rear for the standard 16" (CLK320). Just upgraded to 18", and the supplier recommended 40 psi, same as kiwik. That's a big difference. Perhaps i go with 35 psi, happy medium, but i have really no clue.

Cheers
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Old Dec 29, 2002 | 02:31 AM
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asdf
go with 40psi on all 4. anything lower than that and you might bend your rim on a pothole or whatnot.
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Old Dec 29, 2002 | 02:48 AM
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i run about 36~40 psi on 17" on both my wagon and c36. any lower on the low profile tires could result in pothole mangled rims...i lost a few tires already cause i think the dealer set it at 32 b4 i really started checking for it. just keep in mind higher u go, stiffer the ride. also u don't wanna over inflate. 40 should be as high as u should go if u really wanted...too much air could also make it prone to breaking...
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Old Dec 29, 2002 | 05:14 AM
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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 ??????
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Old Dec 29, 2002 | 05:18 AM
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SL55
Sorry, my last post was ment for another thread that I started.

Graham.
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