I thought that rotaries were supposed to be reliable, with fewer moving parts? "I don't need no stinking pistons"

What were you trying to change, the timing? and that's what caused the detonation?

Start looking on eBay.

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Tim Linerud
San Francisco Region SCCA
#95 GP Wabbit (Bent)
http://linerud.myvnc.com/racing/index.html