Tire pressure on 275/315 set up? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Royal Tiger · 05-22-2018, 06:45 PM

I’m running I believe the psi listed inside the door or 1-2 less and I’m wearing the centers from a cursory inspection today. What are you guys running with this set up? Thanks.

KillboyPowerhead · 05-22-2018, 07:14 PM

I've wondered this myself but could not find a definitive answer. To me it makes sense to use less pressure with wider tires because you're increasing surface area and, therefore, the same amount of weight/force is distributed across a greater area, meaning less pressure would be required to resist said weight/force (or something like that).

In your case I guess you have proven that less pressure makes sense, assuming you've maintained consistent air pressure in the tires and a consistent driving style since the beginning of these tires.

I'm thinking as a starting point, if you increase the surface area of the tires by 10% you could decrease the pressure in those tires by ~10% as well, but then again I have no idea what I'm talking about

Also, 36 PSI is just a recommended pressure for all scenarios (fuel economy, tire wear, performance, etc.), so even using 36 PSI as a reference isn't necessarily right; guess you just have to check your tire wear every few thousand miles and see.

chuckie669 · 05-22-2018, 07:17 PM

I have 255/315 combo on 20s and run 36psi around

spyderbuddy · 05-22-2018, 09:50 PM

275/315 and run 32psi on all four corners no problems.

Royal Tiger · 05-22-2018, 09:57 PM

Quote:

Originally Posted by spyderbuddy

275/315 and run 32psi on all four corners no problems.

I checked and this is what all 4 are set at. The tires aren’t terrible, but my mechanic noticed the wear pattern.

TheFlyingBananaSS · 05-23-2018, 05:58 AM

I have my fronts at 30 cold. And rears at 28 cold. Thinking about going to 32 cold on the fronts. Since its not a DD, I keep the drag radials on the rear low so I always have good hook up. A race can happen at any time around here lol.

rvnmaniac · 05-23-2018, 08:46 AM

I run 34psi cold front and rear. No unusual wear of tires...

witenite · 05-23-2018, 06:23 PM

Quote:

Originally Posted by rvnmaniac

I run 34psi cold front and rear. No unusual wear of tires...

Same here.

GodWentPunk · 05-24-2018, 11:33 AM

I have mine ZL1's set to 35 all around.

joe...

JimE · 06-01-2018, 06:49 AM

I'm at 28psi cold on the stock Goodyears which I use in the summer.

The Toyos which I use over the colder months are at 32psi.

TheFlyingBananaSS · 06-01-2018, 08:32 AM

I found a good balance for my driving style to be 34 cold front and 28 cold rear. I'm even considering 26 or 27 on the rear. Hook up is everything.

CCMADONNA · 06-01-2018, 08:34 AM

275/305 P Zeros at 35 - 36 psi

ChibiBlackSheep · 06-01-2018, 08:40 AM

33 PSI here. Do you do your own tire rotations? Set your PSI where you think it should be, and then see how the tire is wearing. If it's wearing in the center, let some air out. If the sides are wearing, add some air in.

SSEssence · 06-01-2018, 11:01 AM

35 psi cold here all around

05-22-2018, 06:45 PM	#1
Royal Tiger Account Suspended Drives: 2013 2SS/RS Convertible Join Date: Apr 2016 Location: Lehigh Valley, PA Posts: 3,873	Tire pressure on 275/315 set up? I’m running I believe the psi listed inside the door or 1-2 less and I’m wearing the centers from a cursory inspection today. What are you guys running with this set up? Thanks.

05-22-2018, 07:14 PM	#2
KillboyPowerhead Drives: 2015 Z/22 Join Date: Aug 2015 Location: Ontario, Canada Posts: 931	I've wondered this myself but could not find a definitive answer. To me it makes sense to use less pressure with wider tires because you're increasing surface area and, therefore, the same amount of weight/force is distributed across a greater area, meaning less pressure would be required to resist said weight/force (or something like that). In your case I guess you have proven that less pressure makes sense, assuming you've maintained consistent air pressure in the tires and a consistent driving style since the beginning of these tires. I'm thinking as a starting point, if you increase the surface area of the tires by 10% you could decrease the pressure in those tires by ~10% as well, but then again I have no idea what I'm talking about Also, 36 PSI is just a recommended pressure for all scenarios (fuel economy, tire wear, performance, etc.), so even using 36 PSI as a reference isn't necessarily right; guess you just have to check your tire wear every few thousand miles and see. __________________ Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts

05-22-2018, 09:50 PM	#4
spyderbuddy Drives: 2010 RS Inferno Orange Metallic Join Date: Mar 2010 Location: Albany, Ga. Posts: 3,398 View My Garage	275/315 and run 32psi on all four corners no problems. __________________ PCP Hideaway Headlight Covers, BBK Headers & High Flow Cats, ZL1 Add-ons Wicker Bill, TL1/ZL1 Hood Insert, Gen5 DIY Frameless Mirror, ABL Dash Lighting an My link Navigation, Blacked out Rear Bowtie, all Sylvania led Turn Signals, Ceramic Window Tint By Nicks, MBRP Exhaust tips, GEN5 DIY Virginia Legal DRL Harness, Painted Brake Calipers, Vittesse Throttle Controller, Heritage Grill, Diode Dynamics Led Lighting, Manual Shifter Boot, Paddle Shifters, CNC Throttle Body, Trifecta Tune, RX Catch Can & Breather, Trunk Black out and Side Grills, Chevorlet door Sills.

05-23-2018, 05:58 AM	#6
TheFlyingBananaSS Evil Genius of Chevrolet Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017 Location: New York Posts: 3,260	I have my fronts at 30 cold. And rears at 28 cold. Thinking about going to 32 cold on the fronts. Since its not a DD, I keep the drag radials on the rear low so I always have good hook up. A race can happen at any time around here lol. __________________ GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.

05-23-2018, 08:46 AM	#7
rvnmaniac Drives: 2012 M6 ZL1. 2019 Altima.07 FJR1300 Join Date: Nov 2011 Location: MD Posts: 665	I run 34psi cold front and rear. No unusual wear of tires... __________________

05-22-2018, 07:17 PM	#3
chuckie669 Drives: 2011 ss Join Date: Sep 2015 Location: E-TX Posts: 764	I have 255/315 combo on 20s and run 36psi around

05-24-2018, 11:33 AM	#9
GodWentPunk Drives: 2015 2SS White Convertible CE/INDY Join Date: Mar 2016 Location: Lockport, IL Posts: 780 View My Garage	I have mine ZL1's set to 35 all around. joe... __________________ ARH LTH/HFC/Legato muffler, RDP Custom Tune, K&N Blackhawk CAI, Bigworm Blackout kit, ZL1 Rims, Phantom Grills, VMAX PTB

06-01-2018, 06:49 AM	#10
JimE Drives: 2013 2SS/RS/1LE Join Date: Apr 2010 Location: St Louis, MO Posts: 3,087	I'm at 28psi cold on the stock Goodyears which I use in the summer. The Toyos which I use over the colder months are at 32psi.

06-01-2018, 08:32 AM	#11
TheFlyingBananaSS Evil Genius of Chevrolet Drives: 2017 Z06, 2019 XTS, 2013 SS Join Date: Feb 2017 Location: New York Posts: 3,260	I found a good balance for my driving style to be 34 cold front and 28 cold rear. I'm even considering 26 or 27 on the rear. Hook up is everything. __________________ GPI SS2 VVT cam, ECS Novi 1500 supercharger, Corsa Extreme, Detroit Speed and BMR suspension, Circle D triple disc, Melling oil pump, LS2 chain tensioner, ATI 10% UD, DSX E85 kit, High Energy coils, BTR springs, LS2 Lifter trays, Titanium retainers, hardened push rods, FIC 1000 injectors, ZL1 pump, Mighty Mouse catch can, AEM gauges, Tial BOV, Richmond 3.91 gears, Custom gauge bezels, Speed Engineering headers, Stainless Works HF cats, DSX Aux pump, 710rwhp on E85.

06-01-2018, 08:34 AM	#12
CCMADONNA Drives: 2014 SW 2SS/RS Join Date: Jun 2014 Location: So Cal Posts: 1,681 View My Garage	275/305 P Zeros at 35 - 36 psi __________________ 2014 2SS/RS VERT L99 SUMMIT WHITE AIRAID CAI BORLA ATAK CAT-BACK EXHAUST ELITE ENGINEERING CATCH-CAN RANGE AFM-DELETE MODULE HUPER OPTIK 40 CHROME PEDALS PREMIUM FLOOR MATS PREMIUM CARGO MAT DEDICATED 32GB iPHONE HD[/I][/B][IMG][/IMG]

06-01-2018, 08:40 AM	#13
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,089	33 PSI here. Do you do your own tire rotations? Set your PSI where you think it should be, and then see how the tire is wearing. If it's wearing in the center, let some air out. If the sides are wearing, add some air in. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

06-01-2018, 11:01 AM	#14
SSEssence Instagram: Sangstah Drives: 2019 Camaro 1LE Join Date: Sep 2016 Location: Buena Park, CA. Posts: 2,802 View My Garage	35 psi cold here all around __________________ 2019 SS 1LE - "CaSSandra" 2014 SS - "AleSSandra - Sold" 94 Z28 - Sold Follow the build https://www.camaro6.com/forums/showthread.php?t=612717