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11-03-2012, 09:36 PM
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#1 |
 
Drives: ZLI IOM Convertible Join Date: Oct 2012
Location: Kennewick, Washington
Posts: 155
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Which tire pressure gauge to trust?
My DIC says the front tires are 28# and the rears are 33#. My little hand held dial gauge say the fronts are 33# and the rears are 37#. Anybody got any info on which might be more accurate, and does it matter that the fronts are a little less than the rears?
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11-03-2012, 09:48 PM
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#2 |
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Drives: 2013 Camaro ZL1 Join Date: Sep 2012
Location: Spring, TX
Posts: 136
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They should all be at 35 psi.
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2013 Camaro ZL1 Silver Ice #3187 TPW 10/22
1100 Preliminary Order Accepted 9/26/2012 1102 Preliminary Order Added Thru Web 9/26/2012 2000 Accepted by GM 10/01/2012 2500 Preferenced 10/02/2012 3000 Accepted by Production Control 10/02/2012 3100 Available to Sequence 10/11/2012 3300 Scheduled for Production 10/11/2012 3400 Broadcast 10/18/2012 3800 Produced 10/22/2012 4000 Available to Ship 10/23/2012 4150 Original Invoice 10/23/2012 4B00 Bayed 10/23/2012 4200 Shipped 10/26/2012 4800 Rail Ramp Unload 11/02/2012 5000/6000 Delivered 11/05/2012 |
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11-03-2012, 09:56 PM
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#3 |
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Account Suspended
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Check them after car sets over night in the morning. I went through this shit for a week. LOL Set them at 36 (SS) ? (ZL1) reset the dic and drive a few miles. Your dic will show higher numbers as the tires get hotter from driving. Again check them in the morning if your car is in a garage. Hope this helps man... Go to Advance and get a digital gauge. Get a good one.
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11-04-2012, 08:35 PM
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#4 |
        Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,935
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I use a digital accugauge and my DIC is only off about 1 PSI on one tire. I run 32 in them.
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11-04-2012, 09:53 PM
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#5 | |
   
Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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Quote:
32 is recommended
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11-04-2012, 09:59 PM
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#6 |
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Older than I look....
Drives: 2010 VR Camaro 2SS/RS LS3 Join Date: Feb 2011
Location: Washington
Posts: 6,481
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According to the owners manual, they should all be at 36psi cold.... I noticed my manual tire gauge was always about 5psi off from the DIC. Got a new manual gauge, and it matched. I now go with the DIC (had some big issues after rims changed, and after going through deep standing water.... now resolved, but I was testing it a LOT during that timeframe.)
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High Heels and Fast Wheels!!
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11-04-2012, 10:20 PM
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#7 | |
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Drives: 2012 ZL1 - #670 Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 8,009
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Quote:
That's for the SS, the ZL1 is different ... Should be 32 cold
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11-04-2012, 10:48 PM
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#8 |
Drives: 2011 Camaro SS/RS - 2004 Silverado Join Date: Mar 2010
Location: Las Vegas, NV
Posts: 2,989
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I'd trust the handheld gauge more than the DIC. My handheld gauge is always about 3-4 psi more.
I think GM intentionally shows a lower psi on the DIC. This makes owners pump up their tires way before the tires are dangerously underinflated.
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2011 Summit White Camaro 1SS/RS
-6.2 LS3, TR6060, 3.45, G80 2004 Black Silverado 1500 2WD Regular Cab, Short Bed -5.3 LM7, 4L60E, 3.42, G80 2014 White Caprice PPV -6.0 L77, 6L80E, 2.92, G80 |
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11-05-2012, 10:30 AM
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#9 |
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corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 6,990
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I'd trust a good hand-held gauge more . . .
Short of that, at least use the same gauge whenever you re-inflate the tires and don't be too afraid to experiment with slightly higher or even lower indicated pressures (since you won't know if your hand-held reads high or low unless you go get it calibrated somehow). Don't be afraid to try a little stagger in your pressures either. A little more pressure in the fronts (2 or 3 psi) will make the car respond a little more crisply to steering wheel inputs, and setting the rears to a little less than the fronts gives them a little more margin against the car's tail "going loose" under a little too much throttle on corner exit. You might find that you prefer the car's handling behavior that way. Norm |
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11-05-2012, 11:00 AM
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#10 | |
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Quote:
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11-06-2012, 12:54 PM
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#11 |
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Raging Bull Reborn
Drives: '09 CGM Z063LZ '15 RH Z/28 #0631 Join Date: Mar 2012
Location: Broken Arrow OK
Posts: 765
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liquid filled analog gauges are my favorite
The pressure gauge can always be replaced with an even more accurate liquid filled gauge, but there are several from JEGS this is one at 48.00 plus shipping; accuracy is not cheap.
http://www.jegs.com/i/Intercomp/541/...oductId=937095 |
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11-09-2012, 12:08 AM
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#12 |
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Drives: ZLI IOM Convertible Join Date: Oct 2012
Location: Kennewick, Washington
Posts: 155
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Thanks for all the tips. I have a few dial gauges (not very expensive) and they all read the same so I'm betting the DIC is off. I will probably invest in more accurate tool just for my piece of mind. I also intend to take the advice and try a couple of different pressures to see what works best for me.
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11-09-2012, 05:47 AM
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#13 |
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Drives: 2012 Corvette, 2007 STS Join Date: Jul 2009
Location: GA
Posts: 157
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Your gauge is probably wrong. The tire pressure system is very accurate.
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11-09-2012, 06:35 AM
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#14 |
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corner barstool sitter
Drives: 08 Mustang GT, 19 WRX Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 6,990
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It cannot be any more accurate than how well within the permissible electrical and physical/mechanical tolerances the bits inside your specific sensors are. And that's assuming that all of your sensors are fully within spec.
Norm |
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