Need for Speed 2
TY 4 Stroke Junkie
Out yesterday on the rail line groomed nice and flat, Clutching is at 90grams per 3 arm using super tips 54-48 dalton helix black silver dalton primary spring, and a purple EPI secondary spring, no belt slpi and it still hits the limiter coming out at the 60 foot mark with track speed going insane then crazy wheelies. Going to install my HRP clutch I purchased from Turbo Jamie to get better bite and less weight per arm on primary. The 2871 is a riot with no lag at all thats notice able 26-38 gears are working great for my riding and trail lake racing. 18lbs of boost on meth I couldnt be more pleased with my ole one eye it pulls harder than anything I have ridden to date other than our old 660 mods from the old days. Any advise on the HRP clutch would be greatly appreciated. Merry X-mas to all.
- Joined
- Apr 17, 2003
- Messages
- 5,466
- Reaction score
- 1,262
- Points
- 2,003
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
Going from memory, but there is a formula to figure out a starting point for 4-arm weights. I believe it was add your 3 arms together + 12 grams and divide by 4? (Maybe Mr Knapp or Benji or Onestop can step in here and help).
90 + 90 + 90 = 270 + 12 = 282 / 4 = 70.5 grams per arm?
90 + 90 + 90 = 270 + 12 = 282 / 4 = 70.5 grams per arm?
