[Ron61]

Bill,

Not sure if this will help any as I run a non aluminum pan. Some of the racers around here run the aluminum ones in different varations, and after talking to them, they more or less recommended that I stay with the standard metal pan if I wasn't going to be racing a lot. It will stand up to any rocks or street speed bumps it may hit better than the aluminum one, or so they say. The metal pans will give and bend, where the aluminum ones will crack and break. Unless you need all the weight savings you can possibly get for racing, from what they have told me, you would probably be better off with the steel pan for street use. If you are going all out racing then the aluminum one would most likely be your best bet.
None of this is from personal experience, just talking to the all out racers and the ones like me that just go to the track once in a while for fun.

Ron