I know there is a clutching separation Powerblock/Comet with most guys...but this thread is mainly to see what kind of Comet calibrations guys have used to suit different riding styles around the country.
I have had a tote full of clutches (all Comet...ranging from a 70's 102c for parts...BRAND NEW 102c #208306...to a VERY CUSTOM 108c that Cowboy sent me a while back) and a rev-delete CDI built by Bill Keefe. My area in NH brings my Pilot into some VERY technical climbs up rough rocky slopes into the mountains...so unfortunately all the Comet stuff has been shelfed for a while as it has not been needed. My stock clutch and belt is IMO the best setup for the riding I have done thus far.
Now...the trip to D-Town is a ride that has TONS of long FAST pulls on trails that are super highways. Yesterday I pulled out the clutch tote and started poking around into what I have and could possibly utilize for a higher revving setup for the trip. I have chosen the NEW 102c to use...for a few reasons. When you scale the clutches...the 102 is the lightest...the 108 needs a movable face (as the bushing is worn and not replaceable without a whole M/F) and WOW is that going to be a project. Cowboy has taken a 108c (fittment is for a V-Max 800 4-cylinder) and machined the OD of the fixed and movable face down to the OD of a stock clutch...so it will fit inside the frame...and under the belt shield. Plus...Cowboy had this 108 on a CR500 Pilot...so it will be tricky to re calibrate it to run correctly on a 400cc Pilot...as mine is.
So...to the 102c. My first attempt at a calibration setup may be my last. It has a set of B-1 arms (45g each with heavy tips...NOT thin mod tips) and a Black Comet spring. I am running the Polaris belt to try it out. The STOCK mitsuboshi belt is still close to a C-Note and is typically special order from your Honda dealer...as the Polaris belt fits ALOT of current 4x4 models and the RZR models...so is typically IN STOCK at most Polaris dealers. (significantly cheaper than the Honda belt...even from locations outside of my distributors and discounts)
So in regards to the belt and clutch angles...BEFORE i popped the stock Honda primary from the crank...I measured the clutches the way Ski Doo tells you to measure (X-Y-Z method with a straight aluminum bar) and checked the belt for wear from over a YEAR of use and abuse
Happy to say that stock belt is damn tough...service limit is 1.100 in and it is 1.2+/- when it is new (mine measured 1.170 after use which was pretty impressive to me) The Polaris belt new in the package measures 1.16+/- and has ALOT less overall height for side bite on the faces. After popping the stock clutch and installing the 102...the secondary DID NOT need any shims to match the OEM angles (tolerances are much wider in snowmobile specs for these measurements) the difference between stock/comet were within .003 in...X and Y.
Now to the setup and results...135g of cam arm weight, Black spring, PWK running 182 main and 45 pilot jet.(elevation is 0-600 here in Southern NH) Engagement was 3800-3900 (NOT bouncing off reverse rev limiter) and forward pull is GNARLY. She engages and pulls right up into the high 6000 range and does all the shifting to full engagement up around 7500. When you back off and hit it again...it wants to peel rubber and scream right back into the 7's. It does not bog or lag ANYWHERE through the shifting range...this is why I say this may be a one and done setting. It is IMO too agressive for the rocky granite state trail riding I have done...but feels PERFECT for D-Town.
Any Input? Opinions? Other things guys have tried? Results?