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Originally Posted by SkipB
I really would like some input from Backdraft owners ONLY on what the optimum tire pressures (F&R) are for the 15" wheel set up with BFG Radial TAs. Because we have a BMW based suspension, input about other car brands is not so useful.
I am looking for the best all around set up for the street. I don't do any competitive events, especially with these tires! I just want great handling, limiited vibration, and the best ride. Not much to ask!
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I would think input from other cobra's would be useful, ones with independant suspensions, similar weights and weight distribution, of which all are very similar.
For the best ride, i.e.cruising, you want a lower pressure to absorb the bumps some. If you want best handling, what you are doing is loading the suspension/tire to the extremes on corners, shifting alot more weight on the outside tires than they would nortmally see just with cruising. You will find that the pressure that gives the best ride with cruising will likely be too low to give the best handling, because you will feel the tire kind of roll over on itself as you turn sharpely. You need to increase the pressure for max handling, which may make the ride a little harsher with cruising, but not really that much.
As Oltoff as said, you want above 27 psi for performance with a "street" tire for a cobra. I can tell you that increasing the pressure from 25 to 27 made a noticible difference that I could detect, i.e. wannabe racer, at Mid Ohio.