Hey guys....wow, I have been out riding and come back here to see all kinds of action! LOL.
Just got caught up on 3 or 4 pages of reading....Got lots more miles on and have been waiting for clutch parts to arrive, which just came in today!
Not sure why some guys are all upset with me, but I was just trying to weed out the reason my RPMs were so low initially. So swapped the Mach ramps to 880s(adr,X,Xrs ramps). This one test alone was the most worthwhile test IMO. There is such a difference in the 880s vs the 897s, and if I was gonna buy only one clutch item, it would be the 880 ramps for the Mach. I continue to think the 897s were designed around LC period.
That being said, I never was DONE with the tuning. I know full well what this clutching is lacking and have been waiting for parts. I also want to run the Ultimax. Im pretty sure I have explained this before in this thread but reading along the posts just go so far off from where Im going. I understand its a forum and this happens, and yes I am throwing theories out there of ECU pulling back, maybe so or maybe not? But I'm still in the middle of clutching this Mach.
I did find a fair amount of slippage in the secondary since we now have more miles on. I felt from the beginning this was happening and can clearly see it now, and so my hunch in the parts I ordered a while back should work out.
While I do think the rpms need to come up(I was at 7500), we did find enough test time to show 8000 vs 7700 on top end the top speeds are ultra similar. I think 7700 on long hauls once heat soaked is OK, and should not be lower. I would prefer 7900 though. 880s ramps seem to like that zone.

So for me, this is what sledding has always been about. Dialing in the clutching. No different then any other sled I have owned. Only difference is now there is the internet and I enjoy posting if I find gains I like, so others can try them out.....I do feel these 4strokers are setup more for touring type power, and MPG. Where as the 850s are clutched for pure corner to corner jam. So there is alot to be changed to get these to feel much more fun corner to corner, and for me I enjoy engine braking alot too.
I understand you can never please everyone, i get it. Anyone who cares where I end up Im an open book. PM me anytime. Im sure guys with spring changes will get close, and be alot cheaper. These 4s are very forgiving on top RPM range, however I am trying to make this more of a corner to corner biased sled.
Have a good day gang, life is short and I really do like to keep a positive attitude! I think the Mach is a blast so far, impressing me in way more ways than I had expected, and while the TOP SPEED is not where I would have wanted, the rest of the '22 Mach experience far exceeds! This will be fixed with a tune(fingers crossed) or I will be talking to Dave or Chris by next fall for the Hurricane standalone.
Dan
