Since we are talking M sleds here, I was up at 127 on Saturday and the snow was EXCELLENT. We were screwing around in the flats on the Tokositna River carving up the powder and I was either getting snow ingestion into the intake or snow into the exhaust. AK-AWD, are you sure your exhaust was plugging? To me it seemed like a snow ingestion bog, but I've never had an exhaust that could get plugged. The snow out on the river was super light and fine and I was laying it over in the powder constantly.
Second, and I know there is a trenching thread in the main AC page, but AK snow is different from alot of other places. I'm still trying to figure out a good setup for getting up on top of the snow. My poor kitty got molested by two XP's on Saturday. We went to play up in the hills to the east of the river and they were consistently out climbing me and just plain got on top of the snow better. I'm not saying the kitty was sucking, but there was clearly a difference. I was tending to spin the snow out from under me and trench down while there were getting right on top. I'm going to try pulling the limiter strap down a notch, but I'm open to other suggestions to help my cat get up on the snow better. My setup on Saturday was: limiters out, front track shock fairly loose, rear at 140 psi. I've never fooled with my rear suspension settings, so its all new to me.
Last my Cat came from ERPAC and I'm getting the same RPM's as bgreen. I know (like mtnsld said) even at 7950-8050 I'm getting plenty of torque and HP but I'm also the kind of person that wants that other 150-250 RPM if I know they are there.