Alignment specs for 1990 348 | FerrariChat
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Alignment specs for 1990 348

Discussion in '348/355' started by jerhofer, Dec 22, 2014.

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  1. jerhofer

    jerhofer Formula Junior

    Jul 10, 2013
    291
    Rockwell, NC
    Full Name:
    Jerry Forthofer
    #1 jerhofer, Dec 22, 2014
    I replaced my rear tires. The right rear was worn a lot more on the inside than the left indicating an alignment is needed. I have the factory specs for the alignment. Are there recommended alignment specs that are better than the factory settings?
     
  2. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,741
    #2 Mitch Alsup, Dec 22, 2014
    At the age of this car, it is probably time to have the car corner weighted and ride height adjusted. It is highly likely that the springs have sagged a millimeter or two. This ensures that both sides of an axle carry the same amount of weight, and thus wear at the same rate. Corner weighting is always performed with ride height adjustments at the same time.

    If the wheels are not carrying an appropriate weight, wheel alignment will not cure differential tire wear.

    Ride height adjustment is how one changes the relationship between oversteer and understeer on these cars. For more oversteer, raise the read by 1-2mm, for more understeer, lower the rear by 1-2mm. You will not find much grip by changing from -0.5 camber in the front, or from changing from -2.0 camber in the rear. There is no reason to modify caster (5 degrees fro non-power steering 348s, 7 for power assisted F355s.)
     

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