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04-15-2008, 02:13 PM
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#1 (permalink) |
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3.9 Liter V6
Join Date: Apr 2006
Posts: 933
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More Air In Front Tires?
I have a Mazda3. The stock tire pressure is 32 PSI all around. The weight is 63/37 front/rear. Would it help my fuel economy to increase the pressure of the front tires by 2PSI to 34 PSI? Opinions on safety, durabilty of tires and the general idea would be greatly appreciated.
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2008 Chevy Malibu LTZ 2007 Mazda3 I Touring |
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04-15-2008, 03:02 PM
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#2 (permalink) |
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3.8 Liter V6
Join Date: Nov 2007
Location: Atlanta, GA
Drives: 2007 Chevrolet Malibu
Posts: 426
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Re: More Air In Front Tires?
I personally never go below 35 psi. I usually have it around 36, never had any durability or safety problems.
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-Jonathan 2007 Chevrolet Malibu LS w/ 2.2L Ecotec 
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04-15-2008, 03:04 PM
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#3 (permalink) |
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6.0 Liter LS2 V8
Join Date: Jul 2006
Posts: 4,341
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Re: More Air In Front Tires?
I have Mazda3s and never go below 35 psi - usually actually go close to 40psi - especially when I have a lot of highway travel planned.
Many people I know believe in inflating tires close to their max-psi rating (which on the RSA's is about 50psi), but I have never dared to do that. Also note that your ride does get a little bumpier when you put in more air than specified - but that never bothered me. Igor |
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04-15-2008, 03:22 PM
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#4 (permalink) |
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7.0 Liter LS7 V8
Join Date: Nov 2004
Location: Caveville, Neanderthallande
Drives: 2007 black KIA Spectra EX. Have club, will travel.
Posts: 8,947
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Re: More Air In Front Tires?
More air in the front tires?
On the surface, it would seem to make sense. It seems to follow the logic that Pontiac used when they set up the suspension/wheel/tire package on the V8 Grand Prix a year or two back. Larger tires up front, since that's where the weight is. Not to mention power. You've gotten answers regarding tire pressure, and almost everybody has an opinion about that. I believe Car and Driver has done some testing on the concept that more pressure in front would have some positive benefits for a FWD car. Don't recall exactly what their findings were, or if this is a phantom memory. Try this: http://www.wtrscca.org/tech.htm So my question is, why not use a +1 tire on the front of your FWD vehicle?
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The national budget must be balanced. The public debt must be reduced; the arrogance of the authorities must be moderated and controlled. Payments to foreign governments must be reduced, if the nation doesn't want to go bankrupt. People must again learn to work, instead of living on public assistance. Cicero (106 BC - 43 BC), 55 BC |
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04-15-2008, 06:25 PM
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#5 (permalink) |
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7.0 Liter LS7 V8
Join Date: May 2006
Location: Lansing
Drives: 2000 Park Avenue
2007 Camry XLE
Posts: 7,463
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Re: More Air In Front Tires?
I run mine at 32-34psi.
Real nice ride that way. My Coopers are suppose to be designed to go from 30psi up to 45psi.
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2000 Park Avenue 2007 Camry XLE "We must be free not because we claim freedom, but because we practice it." ~William Faulkner http://www.afterlife101.com/research2.html By the Way: There IS a Cabal |
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04-15-2008, 07:33 PM
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#6 (permalink) |
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GMI Fixed Ops Contributor
Join Date: Sep 2004
Posts: 8,948
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Re: More Air In Front Tires?
I'd stick with your car's recommended pressures...
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certified GM Dealer Parts Manager since 1994 GM Dealer Parts employee since 1987 AMC-Jeep-Renault Dealer Parts employee 1987-90 holder of many GM accredations, too numerous to list and not giving a damn! |
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04-15-2008, 09:30 PM
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#7 (permalink) | |
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5.3 Liter LS4 V8
Join Date: Jan 2006
Location: 5,059 Miles SE of Dutch Harbor
Drives: 2008 Saturn Aura XE 2.4 I-4
Posts: 3,861
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Re: More Air In Front Tires?
Quote:
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'I've seen the next Cadillac STS replacement and it looks damn good... like a ****ing Bentley.' - Unclassified GM exec. 'I had no respect for the 55 mph limit and I took great delight in breaking the limit I can assure you.' www.32hours7minutes.com |
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04-15-2008, 10:01 PM
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#8 (permalink) |
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5.3 Liter LS4 V8
Join Date: Sep 2006
Location: CT
Drives: 2005 chevy silverado 1500 5.3 EC LB Z-71
Posts: 3,251
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Re: More Air In Front Tires?
i run at 50 psi, but the again, max for me 65. for my truck, recommended pressure on stock tires is 35, but thats half the pressure of my new ones (which are also larger). i think the rating on your vehicle is more of a guideline than anything. the car is designed with that pressure in mind, but you can change it as long as youre willing to deal with the changed driving characteristics. correct me if im wrong.
that is an interesting question though, i never though of that. i dont think increasing the pressure to that will ruin youre tires or anything, too high and they wont wear correctly though (same thing if theyre too low). by increasing the pressure, you lessen the contact patch, but the increased weight in the front might even that out. in a truck like mine its a noticable difference. you can see the difference in the front and rear sidewalls. i wonder what the weight distribution in my truck is. try it, see what happens. although i dont think you will see much difference with just a 2 psi increase, id go with 5 psi at least.
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2005 Chevy Silverado 1500 5.3 Z-71 EC LB 3" P.A. Body lift, 305/70/17 Nitto Terra Grapplers, 17x9 Pro Comp Extreme Alloy Wheels, Halo Projector headlights w/ HID conversion and LEDs, halo projector fog lights, Pace Edwards tonneau cover, Fire and Ice LED light bar, "Patriot" back window decal, JDM black chrome bumper lights w/ LED, Putco Crhome handle covers, Billet-grille emblem, iPOD jack... Last edited by chakis24 : 04-15-2008 at 10:34 PM. |
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04-15-2008, 10:32 PM
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#9 (permalink) | |
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6.0 Liter LS2 V8
Join Date: May 2006
Location: Dimondale, MI
Drives: '89 Buick Reatta
Posts: 4,604
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Re: More Air In Front Tires?
Reattas have such a front weight bias that with my 17''s I run the fronts at close to max pressure, like 42 psi, and the rears around 28
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'07 Subaru Forester: Manual trans, shifts assisted by Momo '89 Buick Reatta: "Project GS"...3800 SII S/C, 6 speed manual...coming eventually '94 Buick Century wagon: 3100 V6, business vehicle Quote:
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04-16-2008, 12:22 AM
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#11 (permalink) |
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2.0 Liter Supercharged ECOTEC
Join Date: Mar 2008
Location: A2, MI
Drives: It's got chrome and steel
Posts: 186
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Re: More Air In Front Tires?
might want to look here on this topic The Great MPG Experiment...
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The SS badge never was about looks, it's about performance and always should be. |
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04-16-2008, 12:45 AM
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#12 (permalink) |
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6.2 Liter Vortec V8
Join Date: Aug 2005
Location: Pulaski TN
Drives: 04 Silverado Z71
Posts: 2,809
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Re: More Air In Front Tires?
Wow, judging by some of y'alls air pressures your cars must be rattling themselves to death!!!
I keep my truck's pressure at 32 psi.
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 My Current Ride: 2004 Z71 Silverado Family: Father 2007 Solstice, Mother 2003 Envoy XL & Bro 2004 Z71 Silverado Last edited by drew630 : 04-16-2008 at 12:53 AM. |
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04-16-2008, 09:45 AM
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#13 (permalink) | |
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7.0 Liter LS7 V8
Join Date: May 2006
Location: Lansing
Drives: 2000 Park Avenue
2007 Camry XLE
Posts: 7,463
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Re: More Air In Front Tires?
Quote:
My Buick is at 30psi I think. That is just a tad low for me. EDIT: I figured why not and went outside and just checked mine. Since it has gotten warmer then they go up. I was at 35-36psi in all four. So I lowered them. Never hurts to keep a good reliable gauge with you....
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2000 Park Avenue 2007 Camry XLE "We must be free not because we claim freedom, but because we practice it." ~William Faulkner http://www.afterlife101.com/research2.html By the Way: There IS a Cabal Last edited by Old Dood : 04-16-2008 at 09:53 AM. |
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04-16-2008, 01:59 PM
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#14 (permalink) |
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3.9 Liter V6
Join Date: Sep 2006
Posts: 829
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Re: More Air In Front Tires?
The higher pressure makes sence, but remember that the manufactor recommmends a certain pressure for more reasons than just ride comfort. Safety, handling, traction, wear, etc.... All come into play.
But please don't run them lower.......
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04-17-2008, 10:11 PM
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#15 (permalink) | |
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3.9 Liter V6
Join Date: Apr 2006
Posts: 933
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Re: More Air In Front Tires?
Quote:
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2008 Chevy Malibu LTZ 2007 Mazda3 I Touring |
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