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08-29-2012, 05:46 PM
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Registered User
 Join Date: Dec 2010
Location: Virginia Beach, Virginia
Posts: 74
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Tire pressures
I put Ford Racing “C” springs and Steeda billet aluminum C/C kit in the Mach last weekend. I took it to the local alignment shop today to get it all straight. They only do alignments and are the specialists for lowered cars or lifted trucks. After the technician told me he could not align the car, bad Steeda X2 ball joint, he said he inflated my tires to the tire manufacture max pressures. I have Sumitomo 245/45-17s in front and 315/35-17s in the rear. I have run for the past two years the Ford recommend 30 PSI all the way around.
What is the correct PSI to run for a DD? |
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08-29-2012, 07:26 PM
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#2 |
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oooooo snaaps....
 
Join Date: Jun 2007
Location: DALLAS, TX
Posts: 592
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Re: Tire pressures
i run 16 psi all the time in my car(rear), i have 315 bfg drag radials.
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2003 DSG mach 1:best 1/4-12.81 at 106.0 spinning, new times soon. Performance: HPP tuned 390hp and 422trq on 4lbs precision 7675 billet wheel turbo kit...FRPP 4.10...RAM Powergrip clutch...SPEC billet steel flywheel...MGW shifter...FIORE quadrant...Steeda firewall adjuster...Roy's 1/2" intake spacer...EGR delete...HPM megabite Jr. upper and lower arms. Looks: 03 Cobra wheels...03 Sideskirts...01 Tail lights...01 Front bumper |
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08-29-2012, 07:47 PM
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#3 |
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LuLz
 
Join Date: Dec 2003
Location: Cedar Park, TX
Posts: 19,294
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Re: Tire pressures
for street tires the proper pressure will vary since the proper pressure is really what give you a nice even wear across the tread of the tire. for me it was 38 in the front and 44 in the rear with 265/38/18 and 315/30/18.
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11 Sterling gray GT500 coupe 08 Silver Z06 1058rwhp/1073rwt @ 15psi  14 Silver Q50S Vortech blown 04 DSG Mach 1 (stolen) 03 OW Mach 1 (sitting in a field rotting away) |
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08-29-2012, 08:23 PM
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#4 |
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Registered User
 
Join Date: Sep 2011
Location: NY
Posts: 394
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Re: Tire pressures
Mine is a dd with the same size tires, I run 32 psi on all 4's.
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03 Mach 1 391 rwhp/353 rwtq N/A 106100s Bolt ons NA SVT intake 4.10s |
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08-29-2012, 11:45 PM
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#5 |
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Registered User
Join Date: Mar 2007
Location: Discovery Bay,CA
Posts: 513
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Re: Tire pressures
275/35 295/35 18 cold pressure i run 32-34 front 28-30 rear.
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ROB: 03 A.B MACH 1 5SPD MAGNAFLOW AFTERCAT: BASSANI CATTED X PIPE: JLT RAI: PHP SPACER: 390 GEARS: X CAL II W/CUSTOM TUNE: WHEELS CHROME BULLITTS: 18X9 275/35 18X10 295/35: (MM SUSPENSION MODS): BILSTEIN HD STRUTS/SHOCKS: 350#FRONT COILOVERS: CASTER/CAMBER PLATES: FRONT LCA: SWAYBAR END LINKS: STEERING RACK BUSHINGS: K MEMBER BRACE: REAR HD ADJUSTABLE LCA: TORQUE ARM: PANHARD BAR: TROQUE ARM SPRINGS 370-440#"S: SUBFRAME CONNECTORS: |
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08-29-2012, 11:48 PM
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#6 |
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Registered User
Join Date: Mar 2007
Location: Discovery Bay,CA
Posts: 513
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Re: Tire pressures
I will adjust my pressure some what depending on the time of year.
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ROB: 03 A.B MACH 1 5SPD MAGNAFLOW AFTERCAT: BASSANI CATTED X PIPE: JLT RAI: PHP SPACER: 390 GEARS: X CAL II W/CUSTOM TUNE: WHEELS CHROME BULLITTS: 18X9 275/35 18X10 295/35: (MM SUSPENSION MODS): BILSTEIN HD STRUTS/SHOCKS: 350#FRONT COILOVERS: CASTER/CAMBER PLATES: FRONT LCA: SWAYBAR END LINKS: STEERING RACK BUSHINGS: K MEMBER BRACE: REAR HD ADJUSTABLE LCA: TORQUE ARM: PANHARD BAR: TROQUE ARM SPRINGS 370-440#"S: SUBFRAME CONNECTORS: |
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