800T clutching
- Thread starter turbo800
- Start date
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badass1000
Well-known member
Just buy the DJ mountain ramps. Better yet just buy his clutching all together. 
I been making this ramp since Spring 09. I have lots in stock and can send at any time.
Usually once order is placed, we send right away, and its 7~10 days to USA with tracking number.
I'm running ramps like DJ's. a 200/320 primary spring. Full pins a 45/47 helix with the purple doo secondary spring. 23/51 gearing. Belt temps are pretty high. clicker 2 at 6000-8000' pulls rpm no problem. But I have an over rev in the middle. If i bring the boost in then let off it over revs. I dunno.
Might gear it 21/51 and try a straight 48
maybe a 230-320 primary spring. and some solid weights or tungsten inserts.
Might gear it 21/51 and try a straight 48
maybe a 230-320 primary spring. and some solid weights or tungsten inserts.
S
simbatheking
Well-known member
I know its a long shot, but can anyone guess what this primary spring could be? I couldn't find any numbers on it. the previous owner I got the sled from said it was titanium but other than that I have no idea. im using it and its working great im just curious for future tuning reference.
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tinman800
New member
If you know who the manufacturer of the spring is you can measure the diameter of the coil wire and the overall length of the spring. You can cross reference there spring chart and get a pretty good idea what it is. The overall length will likely be a little bit shorter than listed on the spring chart due to fatigue from cycling but with titanium will much closer to the listed length than steel.
Skidoo did not offer very many titanium springs, so if its a skidoo spring it should be a narrow search window.
Skidoo did not offer very many titanium springs, so if its a skidoo spring it should be a narrow search window.
http://www.rentoncoilspring.com/performance/shop/snow_primary_clutch.html
Measure and give those guys a call or email them, great company... I'm running the rcs 235-330.
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nuttyn01
Well-known member
clutching
I have been running turbo doo's since 08 and have tried every clutching scenario out there for mountain riding! I am currently running an aerocharger set up at 9.5 lbs of boost on a 14 xm 163" x 3" track and 7 tooth drivers with TKI belt drive(2.42 ratio - going down to 2.33). I have the ring gear removed from the primary as well as the clutch lightened and balanced by John at slead head racing. I ride from 6000' to 13000'. This is the best clutching set up I have found to date period(IMO). I just spent two days in the black hills riding tight trees and the throttle response was great and still pulled like a freight train on top. Engagement is at about 4200 rpm, in and out of the throttle it is right there and back shift is perfect:
primary: felker ramps on clicker 2
felker spring - 240/290 titanium spring
1 mm oversize roller - controls r's and increases shift force
medium pin kit full (19.6 grams)
belt to outer sheave clearance at .012"
secondary: 40/48 reverse helix
skidoo green spring
I have been running turbo doo's since 08 and have tried every clutching scenario out there for mountain riding! I am currently running an aerocharger set up at 9.5 lbs of boost on a 14 xm 163" x 3" track and 7 tooth drivers with TKI belt drive(2.42 ratio - going down to 2.33). I have the ring gear removed from the primary as well as the clutch lightened and balanced by John at slead head racing. I ride from 6000' to 13000'. This is the best clutching set up I have found to date period(IMO). I just spent two days in the black hills riding tight trees and the throttle response was great and still pulled like a freight train on top. Engagement is at about 4200 rpm, in and out of the throttle it is right there and back shift is perfect:
primary: felker ramps on clicker 2
felker spring - 240/290 titanium spring
1 mm oversize roller - controls r's and increases shift force
medium pin kit full (19.6 grams)
belt to outer sheave clearance at .012"
secondary: 40/48 reverse helix
skidoo green spring
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nuttyn01
Well-known member
spring
If i had to guess I would say that is felkers 240/290 titanium spring. Give Lynn a call and im sure he can verify it!
If i had to guess I would say that is felkers 240/290 titanium spring. Give Lynn a call and im sure he can verify it!
Is that a typo? Maybe 390? I can't find any spring with more than 200 starting rate and less than 290 finish rate...
If it is 390 it would match the Renton spring in the link pretty close!
That's a pretty crazy low rate per inch spring. Interesting. Likely helps keep the rate of rpm increase in check on an etec.
Nutty, what does the felker ramp look like?
Thanks!
Nutty, what does the felker ramp look like?
Thanks!
And is that 40/48 helix a dual angle or a progressive cut?
Thanks!
Thanks!
