Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Emblempros
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > General Camaro Forums > Camaro ZL1 Forum - ZL1 Specific Topics > ZL1 Wheels/Tires

ZL1 Wheels/Tires Wheels and tires discussion for ZL1

Reply
 
Thread Tools
Old 07-12-2012, 12:15 PM   #1
joes407


 
joes407's Avatar
 
Drives: 2014 ZL1m6 red hot #569
Join Date: Dec 2009
Location: florida
Posts: 2,353
ZL-1 tire pressure wheres yours at?

Just curious where everyone is keeping their tires inflated too. Mine came with 30 in the rear and 29 on the front. The manual says put 44 lbs if you gonna go over 100mph and the tire says 51 max psi. I just raised them all to 38 psi cold
joes407 is offline   Reply With Quote
Old 07-12-2012, 12:23 PM   #2
Russell James


 
Russell James's Avatar
 
Drives: '12 SS/RS LS3 IBM
Join Date: Dec 2009
Location: SE Michigan
Posts: 3,365
Your everyday pressure will be on the door label. The high pressure (44) is only for high speed/racing.
Russell James is offline   Reply With Quote
Old 07-12-2012, 12:26 PM   #3
SlingShot


 
SlingShot's Avatar
 
Drives: 2012 ZL1 - #670
Join Date: Jun 2009
Location: Seminole, Fl.
Posts: 6,965
32 here
__________________
SlingShot is offline   Reply With Quote
Old 07-12-2012, 12:45 PM   #4
Mrose
 
Mrose's Avatar
 
Drives: 2012 ZL1 Victory Red !!!!!!!
Join Date: Nov 2010
Location: MI
Posts: 311
35 here cold i use the onstar app on my iphone to monitor my tire pressures warm
__________________
ZL1 Current Status:6000 #1251
1000 Initial Order 11/28/2011 -
1100 Order accepted at dealer: 11/28/2011 - QBDTB8
2000 Order accepted by GM: 04/23/2012
2500 Order preferenced. Pulled to the production system 4/24/2012
3000 Accepted By Production Control: 04/25/2012 - TPW 05/07/2011
3100 Sequenced: 05/03/2012
3300 Scheduled For Production:5/4/2012
3400 Broadcast: 5/5/2012
3800 Produced: 5/11/2012
4B00 Available To Ship car is bayed: 5/13/2012
4200 Shipped: 5/30/2012
5000 Delivered To The Dealer: 6/5/2012
6000 Delivered To Customer: 6/6/2012
Mrose is offline   Reply With Quote
Old 07-12-2012, 12:52 PM   #5
gmgdave
 
gmgdave's Avatar
 
Drives: 12 ZL1 & 08 Suzuki Boulevard C50
Join Date: Oct 2011
Location: Olympia, WA
Posts: 363
37 psi cold, nitrogen
__________________
2012 ZL1 - #413 - IOM - Mods; Exhaust Commander. GMG Third Brake Light Pulsar, Tinted Windows, color matched Engine cover, ZL1 Floor Mats
gmgdave is offline   Reply With Quote
Old 07-12-2012, 01:22 PM   #6
htron50


 
htron50's Avatar
 
Drives: 2012 ZL1
Join Date: Feb 2009
Location: SC
Posts: 2,462
From Factory got this:

33 32


35 37


Fixed them all to 32 Cold. When hot go to 35.
__________________
2012 CAMARO-ZL1
Sincere Thanks to City Chevrolet, Charlotte, NC http://www.citychevrolet.com/blog/ca...et-camaro-zl1/
htron50 is offline   Reply With Quote
Old 07-12-2012, 02:26 PM   #7
ZL1Dave
 
ZL1Dave's Avatar
 
Drives: 2012 ZL-1 #1442
Join Date: Apr 2012
Location: Phila. Pa
Posts: 201
32 cold and they go up to 35 on the highway. I have never seen anything below 31 yet and if I did I would be looking at the tires very closely
ZL1Dave is offline   Reply With Quote
Old 07-12-2012, 02:29 PM   #8
AZ-ZL1
Dry Heat My @ss
 
AZ-ZL1's Avatar
 
Drives: 2012 ZL1 SUMMIT WHITE
Join Date: Mar 2012
Location: Chandler, Arizona
Posts: 707
32 all around
AZ-ZL1 is offline   Reply With Quote
Old 07-12-2012, 02:30 PM   #9
Lonny Doyle
Aerospace Machinist
 
Lonny Doyle's Avatar
 
Drives: 2012 Victory Red ZL1 w/ ECF
Join Date: Nov 2011
Location: Red Oak,Texas
Posts: 67
Everyday driving I run 32

At the strip I have tried 32 and then 27, 27 hooked up better.

First time at the autocross I tried 40 and it was too much, it would not hook up.

The second time at the autocross I set it at 30 and it was a lot better.

There are triangles near the edge of the tire that are wear references. Under heavy side loads the tire will roll under, you will see scuffing start to approach the triangles, if the scuffing starts to wear away the triangles you need to add more pressure.
Attached Images
 
__________________
Lonny Doyle is offline   Reply With Quote
Old 07-12-2012, 08:25 PM   #10
Silverguardrail

 
Silverguardrail's Avatar
 
Drives: 2012 ZL1 #1448
Join Date: May 2009
Location: WNY
Posts: 890
Quote:
Originally Posted by Lonny Doyle View Post
Everyday driving I run 32

At the strip I have tried 32 and then 27, 27 hooked up better.

First time at the autocross I tried 40 and it was too much, it would not hook up.

The second time at the autocross I set it at 30 and it was a lot better.

There are triangles near the edge of the tire that are wear references. Under heavy side loads the tire will roll under, you will see scuffing start to approach the triangles, if the scuffing starts to wear away the triangles you need to add more pressure.
I just read an article online http://racingready.com/2010/05/27/ti...s-tuning-tips/ about tire pressure, the important part is near the bottom, talks about the triangles on the sidewall.
__________________
2012 ZL1 SIM, MN6, B92, RTQ


ZL1 - the true definition of joy ride
Silverguardrail is offline   Reply With Quote
Old 07-12-2012, 08:38 PM   #11
fiascoes1
SoCalRaceTeam new-b!
 
fiascoes1's Avatar
 
Drives: 2012 ZL1/WHITE/BLACK STRIPE
Join Date: Apr 2011
Location: norwalk ca
Posts: 2,011
32
__________________
4B00- 2/16/12 vin 284 my build thread http://www.camaro5.com/forums/showthread.php?t=224028
fiascoes1 is offline   Reply With Quote
Old 07-12-2012, 08:47 PM   #12
16floz470ml
 
16floz470ml's Avatar
 
Drives: 2012 ZL1 GLJ MG9 WBP RTQ
Join Date: Nov 2011
Location: Texas
Posts: 76
Why does the owners manual say set the pressure to 44 for high speed use and the ZL1 owners video says different. It says set the pressure to 28 front and rear when cold. Then hot pressure for the front is 38 and for the rear is 37 for high speed use?
16floz470ml is offline   Reply With Quote
Old 07-12-2012, 08:47 PM   #13
OldScoolCamaro


 
Drives: Camaro's, always have, always will.
Join Date: Oct 2010
Location: Home of the brave
Posts: 4,859
It's suppossed to be 32 PSI as on the door jamb decal. Correct me if I am wrong.
__________________
In Scott We Trust...all others must show proof.
OldScoolCamaro is offline   Reply With Quote
Old 07-13-2012, 07:28 AM   #14
Norm Peterson
corner barstool sitter
 
Norm Peterson's Avatar
 
Drives: 08 Mustang GT, 10 Legacy 2.5GT, ...
Join Date: Jul 2012
Location: Eastern Time Zone
Posts: 2,325
Quote:
Originally Posted by joes407 View Post
Just curious where everyone is keeping their tires inflated too. Mine came with 30 in the rear and 29 on the front. The manual says put 44 lbs if you gonna go over 100mph and the tire says 51 max psi. I just raised them all to 38 psi cold
Ignore the 51 psi max pressure on the tire for setting operating pressures. Max tire pressure is related to the tire's design basis, not vehicle operation.

I don't know why the video would differ from the manual, but delaying the onset of standing waves in the tread and maintaining tire load capacity are likely involved in the increased pressures . . . tire rated load capacity actually does drop off at very high speeds - Linky.


Norm
Norm Peterson is online now   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 02:16 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.