Z-Dreamer Posted March 2, 2002 Share Posted March 2, 2002 I'm considering the purchase of three piece racing rims and would like to know how to mount tires on them? The wheels in question are IMSA racing rims. The fronts are 15X10's and the rears are 15X12's and were made for IMSA Z's in the late 70's to early 80's. I do not know what brand they are, but they appear to in mint condition. They even fit with stock springs, I have seen them. Is $800 to much to pay for all four? I would like to mount Pirelli P7's. Mark Quote Link to comment Share on other sites More sharing options...
Z-Dreamer Posted March 2, 2002 Author Share Posted March 2, 2002 bump Quote Link to comment Share on other sites More sharing options...
Tim240z Posted March 2, 2002 Share Posted March 2, 2002 Mark, Tyres can be mounted as with any normal rims. You may have to search for a shop that has a mounting machine that can handle the wider rims, and watch that they are very careful not to scratch the rims. Check to see if that plastic insert on the machine's fitting surface is in good shape. I worked at a tyre shop for a number of years, and I was the only one that many of the racing guys would trust to mount their tyres (16x11, 16x15), as with the bike guys. ASK if they have experience with racing tyres? Tim Quote Link to comment Share on other sites More sharing options...
blueovalz Posted March 2, 2002 Share Posted March 2, 2002 Is not a P7 a street tire? Mounting, or more acurately, running a street tire on a true racing wheel can have hazardous if not lethal consequenses. I sort of disregarded this warning with some 3 piece lightweight racing wheels (these were road racing, and not drag racing wheels) and sure enough I soon regreted it. As warned, the wheel halves started cracking at the bolt locations where the parts where bolted together. It took only a couple of months for this to happen (only on 2 wheels, but I removed all of them immediately), and I can only imagine what would have happened had I not noticed this while cleaning the wheels one day. The best info I've received on this is that the heavier tires (the street tires where nearly twice the weight of the Goodyear rubber they replaced), higher air pressures (going from 20lbs to 30lbs), and the condition of your typical streets are all contributors to damaging these wheels. All along I was under the impression that if it can stand up to the racing environment, then the street is no problem. Please invest some time investigating this before you commit to doing this. Who knows, you may get lucky. Quote Link to comment Share on other sites More sharing options...
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