>> Hardest problem to overcome >> (I believe) is keeping the apex seals in operation. > yes. That's the flaw > > Some thought a while back that some sort of composite ceramic might be > the answer. A VERY thick block of wood under the accelerator pedal may help. These engines tend to encourage people to drive them very fast and wearing big grins. While they last. Known as V8 beaters in days of yore. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .