Mach 11998 you posted a AFR of 12.2 !!!!! , so my question to you or Dave is would that be the target AFR for the 927??? Not really interested what they do at sea level or for that matter how they are driven on a hard pack trail.
So I bought my 927 from Dave, it was one of four TMS shop sleds that he delivered to me, first ride out 4-5 miles of trail sled ran ok, drop off into a canyon loaded with snow, try to do some long pulls sled goes into limp mode, 5500-6000 RPM Day 1 ruined, call Dave as he is still in Jackson, him and his boy drive down pull sled apart cant find anything wrong but replace power commander with new one take it up on mountain put 5-6 miles on bring back say all is good, Day 2 back on mountain, again trail in is good, hit the deep stuff and again limp mode, call Dave he has no idea what is wrong, Dave contacts Jim at Frank May, Jim says check boost injector wires, found both injector wires damaged, fix problem, now it will run but still sets check engine light and limp mode at times, start leaning out fuel map and the problem is less and less but never completely gone, season 2 pull power commander off, piggy back in a 2nd air temp sensor like the 872's did, no more limp mode or check engine lights ever, sled runs good but is equal to a stocker, pull second air temp out and run on factory ECU and finally it becomes a runner, driving by other 927's and stocker's by a large margin, now on to the stock 850, base gasket change, timing, clutching and gearing and now we are right back giving the 927 fits. So again Max you listed a AFR at 12.2 is this my target AFR for the 927?
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