Thanks for the personal attacks, always plenty of that on the internet, it gets pretty tiresome.
My real world results don't match what you guys are saying. Either I got a weak motor, or the snow depth and snow consistency is different(ie, shallow snow, damp snow or firm snow, or road riding), or elevation is the variable, or the method for quantifying "holding 8000" is much different. I suspect it's a combination of the last 3 things.
If your stock Etec can hold 8000 at above 7000' elevation on C4 in deep dry snow then I got a weak motor.
Here is how I quantify holding 8000. Steep climb, bottomless dry snow, almost no ground speed, track and motor digging for all it has, a period of digging long enough to actually see that the rpms don't fall off, and if the track was allowed to unload and get to 8000 it didn't count.
I suspect the guys who are saying they hold 8000, are actually saying it holds 8000 with ground speed, 2 very different things! I am trying to get the motor to hold 8000 under the worst possible conditions. Do I see 8000 in the run up, yes, do I see 8000 when the track unloads, yes, do I see 8000 when the snow is firm/damp, yes, do I see 8000 with ground speed, yes. But that is NOT how I quantify "holding 8000".