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06-27-2007, 10:57 AM
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CC Member
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Join Date: Feb 2006
Location: Arlington Hts,
IL
Cobra Make, Engine: SPF, KC 427
Posts: 424
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Not Ranked
Tire Pressure
How many pounds of air pressure do you run in your tires. Provide your tire size and list street, track and drag air pressure.
I was running with 32# but have since learned that as a rule of thumb, no more than 1# per 100# of car weight. Now I run - --
Street - 22# rear and 25# front
Track - I don't do track
Drag - 18# rear and 25# front
__________________
To my Cobra: - - when I'm with you - Oboy!
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06-27-2007, 11:12 AM
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CC Member
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Join Date: Nov 2003
Location: Fresno,
CA
Cobra Make, Engine: Shelby CSX 4766 (Vegas Built) with 482 Aluminum Pond motor
Posts: 814
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Not Ranked
Good Year Eagles (Bill Boards) 25-27 for street and track.
__________________
Morgan LeBlanc
Fresno CA
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06-27-2007, 11:20 AM
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Half-Ass Member
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Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,015
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Not Ranked
Yokohama Avid S/T -- 28psi in the front, 26psi in the rear. Reasonably neutral handling.
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06-27-2007, 12:00 PM
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CC Member
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Join Date: Mar 2005
Location: Savannah,
ga
Cobra Make, Engine: Unique, 351W
Posts: 260
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Not Ranked
Avids 24 F and R. Street use.
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06-27-2007, 01:28 PM
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CC Member
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Join Date: Aug 2006
Cobra Make, Engine: Ex CSX3327, & AK7113 AutoKraft AC MK IV
Posts: 458
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Not Ranked
pressure
dunlop sp8000's 255 x16 - 28 pounds
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06-27-2007, 01:58 PM
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CC Member
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Join Date: Oct 2006
Location: McLeansboro,
Il
Cobra Make, Engine: LA Exotic
Posts: 235
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Not Ranked
Warren;is that summer air or winter air
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06-27-2007, 05:02 PM
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CC Member
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Join Date: May 2004
Location: Bartlett,
il
Cobra Make, Engine: B&B 302ci
Posts: 67
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Not Ranked
On my car max front 44 psi 235-60R-15
max rear 35 psi 295-50R-15 this max psi printed on the
sidewall of course this would give the best tire and gas mileage for
street use.  |
06-27-2007, 05:20 PM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
Pressure
BFG G-Force 28 front and 24 rear street only. Best traction on wet and dry roads. Softer ride.
Dwight
Woody2
I think 44 & 32 psi is to much for our light cars on the street. Try 28 psi front & rear and see the differents. Better traction and softer ride.
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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06-27-2007, 05:23 PM
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CC Member
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Join Date: Oct 2002
Location: New Braunfels,
TX
Cobra Make, Engine: Superformance
Posts: 37
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Not Ranked
Why are you guys running so much air pressure?? I tried all of the above and the most even tire wear and neutral handling came with 18# front and rear. Better ride, also. 245-60R-15 and 295-50R-15 Goodyear GT2's. Dynamic also recommended lower pressures.
Eric 1151
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06-27-2007, 05:51 PM
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Senior Club Cobra Member
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Join Date: Mar 2005
Location: Manchester,
NH
Cobra Make, Engine: AK1085 (302 Street), HTM111 (427 Comp), CSX2375R (289 Comp) and COB5999 (427 S/C)
Posts: 19,052
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Not Ranked
Tire pressure:
Good Year Eagles (Bill Boards) 23 rear - 26 front "cold" for street only.
Jeff
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06-27-2007, 06:50 PM
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CC Member
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Join Date: Apr 2007
Location: Chicago,
Il
Cobra Make, Engine: Superformance, 392 W
Posts: 16
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Not Ranked
I run with 22 pounds in both front and rear on the BFG radial T/A's that came on the SPF. 255 60 15 front and 295 55 15 rear. It seems to be a reasonable compromise between performance and economy. (Did I just use the word economy while describing anything that has to do with a Cobra? I am sorry!)
SPF recommends 18 for normal and 25 for performance driving, I have not dropped the pressures to 18 pounds yet, seems a little low to me. Experimentation will tell you what your car and you prefer.
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06-27-2007, 08:23 PM
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CC Member
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Join Date: Jan 2002
Location: Northern California,
CA
Cobra Make, Engine: -Sold- Contemporary 427S/C # CCX-3152 1966 427 Med Rise Side Oiler, 8v 3.54:1 Salisbury IRS, Koni's.. (Now I'm riding Harleys)
Posts: 2,567
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Not Ranked
Mileage? what is this Mileage???
__________________
michael
A man that is young in years, may be old in hours, if he have lost no time. But that happeneth rarely. Generally, youth is like the first cogitations, not so wise as the second. For there is a youth in thoughts, as well as in ages... Sir Francis Bacon (1561-1626)
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06-28-2007, 10:07 PM
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CC Member
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Join Date: Feb 2004
Location: Baton Rouge,
LA
Cobra Make, Engine: Unique Motorcars 289 FIA, S. Automotive 354 stroker
Posts: 148
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Not Ranked
26 front, 24 rear. 235/15/60 Pirelli P600 fronts, 275/60 Nitto DR rear. I also autox with the same pressure/tires with quite satisfactory results. (Here's a recent video I posted in another thread: http://www.youtube.com/watch?v=r3-x_6Tg6lQ).
For drag racing I lower to 20 psi in the DR's. Could probably go lower. |
06-28-2007, 11:46 PM
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CC Member
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Join Date: Mar 2006
Location: San Marcos california,
CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,605
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Not Ranked
The max tire pressure on the tire sidewall is MAX air pressure ,not the recommended,anything above that is dangerous! A Cobra is a light car and even on the track 30 -32 is more than enough, for the street take the advise given above ,mid 20's
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