Dave, probedude wrote: >Could you point me to the message or article that Mike wrote detailing his >calculations? I don't think it's in any of his articles. He's mentioned it several times on the list however. An archive search would be in order. George Roffe Houston, TX 91 SE-R (well modded) 91 G20 (well modded) 84 944 SCCA ITS race car under construction <http://home.earthlink.net/~geo3/>