RxSly
Veteran
- Joined
- Dec 4, 2016
- Messages
- 45
- Age
- 32
- Location
- Ontario
- Country
- Canada
- Snowmobile
- 2016 SR VIPER LTX-DX
2003 RX1 - SOLD
Kerrdog - That's what is awesome about the guys on this site....we want to help! Simple things to make the Viper run better, handle better and even get better fuel mileage.
I noticed the coil bind back in February when a member broke his secondary spring. I put a new one in and when it didn't work, I thought "hmmmmm, why is the paint gone on the coils?" After that it was clear certain springs do not have the clearance on the secondary clutch. The stock pink spring is one of them. hence, the extra washer under the helix when I was testing clutching.
Now....doing a lot of thinking here..... this coil bind issue could be why the 8JP did not last and the 8DN is doing so well. Think about this, the 8JP is shorter than the 8DN....if the shorter belt would go down into the secondary "without" machining done to the secondary, it would try to open the secondary more than the 8DN in which the coil bind issue would really kill top end by not letting the secondary move through the entire movement, hence coil binding and slipping the belt causing the belt to create a bunch of powder and burn the belts to a crisp....creating the black residue! BY GEORGE!!!! I FIGURED IT OUT!!!! The 8DN is a longer belt that would climb more on the primary (more rpms and shift) and not getting to the coil bind area as fast as the 8JPThis is why the 8DN went faster and then adding the washers under he helix made the top mph numbers show
Do you think the 8JP belt will still work in this set-up if the helix is shimmed with the washers? I have a spare 8JP belt already and don't really feel like spending money on another belt!
I know Dalton makes a secondary spring for the yamaha's and say that they are 1/2 inch longer then the silver yamaha spring..Does this give you any ideas?
Last edited:
- Joined
- Apr 14, 2003
- Messages
- 6,539
- Location
- Hessel, Michigan
- Country
- USA
- Snowmobile
- Sidewinder, SR Viper XTX, SR Viper XTX, 2016 Apex XTX and Pro-Line Pro Stock 1000
Yes, you can use that belt with the same setup with shims
smitty_j25
Veteran
- Joined
- Feb 2, 2015
- Messages
- 31
- Age
- 38
- Location
- Nova Scotia
- Country
- Canada
- Snowmobile
- 2014 SR Viper XTX
Is anyone still selling the 45/39 helix that has the spring pocket machined? I just saw the link to Pioneer performance and was going to call them until I saw that they had closed down
jeff_yam
Pro
I have done the mod listed below but i'm still not able to go faster then 150km/h (93mph). Anyone can help me?
-Stingray Airbox mod
-MBRP trail can
-COTC clutch kit (soft start spring + 2 x 1mm glide washers +4.5g rivet on tip)
-46/40 secondary helix (6-1 wrap / pink spring)
-8DN belt with OSP adjuster)
RPM at WOT = 8900
Gearing = 24 / 50
Thanks!
-Stingray Airbox mod
-MBRP trail can
-COTC clutch kit (soft start spring + 2 x 1mm glide washers +4.5g rivet on tip)
-46/40 secondary helix (6-1 wrap / pink spring)
-8DN belt with OSP adjuster)
RPM at WOT = 8900
Gearing = 24 / 50
Thanks!
Last edited:
SnoNinja
aka "Plan B"
- Joined
- Feb 18, 2015
- Messages
- 605
- Age
- 57
- Location
- Gaylord, Michigan
- Country
- USA
- Snowmobile
- 2015 Viper LTX-LE
2016 Vector LE For my Bride
2007 Phazer GT, 136" Stretch.
2002 SXR600 (still own)
1997 SX600 (sold)
1997 XT500 (sold)
2013 Can-Am Maverick 1000XRS
2006 Dodge Charger RT - Top Banana Daytona
Check Dalton.
SnoNinja
aka "Plan B"
- Joined
- Feb 18, 2015
- Messages
- 605
- Age
- 57
- Location
- Gaylord, Michigan
- Country
- USA
- Snowmobile
- 2015 Viper LTX-LE
2016 Vector LE For my Bride
2007 Phazer GT, 136" Stretch.
2002 SXR600 (still own)
1997 SX600 (sold)
1997 XT500 (sold)
2013 Can-Am Maverick 1000XRS
2006 Dodge Charger RT - Top Banana Daytona
Conditions? 6-1 on 46-40 and pink spring is not the ideal set up for top speed. I was faster with stock helix at 3-3 than I am with 46-40 and 6-1. Right now you have better backshift, and it will hold your RPMs better in heavy snow, but it is too much helix and wrap to pull to the bottom of the secondary in anything but perfect conditions. With that helix and spring, try it at 3-3, or even 3-2 and it will help a bit on speed. Your RPM will drop some but the torque in the 1049 can pull it. To get the speed, you need to get full shift from the clutches. All depends on what you like.
Find some ice with just enough snow for lube and traction. Suck up limiter straps. DuPont slides. Right conditions it will hit 100mph.
SnoNinja
aka "Plan B"
- Joined
- Feb 18, 2015
- Messages
- 605
- Age
- 57
- Location
- Gaylord, Michigan
- Country
- USA
- Snowmobile
- 2015 Viper LTX-LE
2016 Vector LE For my Bride
2007 Phazer GT, 136" Stretch.
2002 SXR600 (still own)
1997 SX600 (sold)
1997 XT500 (sold)
2013 Can-Am Maverick 1000XRS
2006 Dodge Charger RT - Top Banana Daytona
Do that and it will hit 106....
jeff_yam
Pro
Conditions are almost perfect, hard packed snow with low temperture of -20 to -25C (-4 to -13F) Also I already have dupond slides. Then I will try my helix at 3-3 and if needed put back the stock helix at 3-3.
Envoyé de mon Galaxy S7 en utilisant Tapatalk
You are using gps right? Try the limiter straps. Even one hole helps.
jeff_yam
Pro
I don't want to play with limiter strap, I already try that and lost a lot of comfort.
I have a PC5 on the way and I will try to add some power before playing with the limiter strap.
Envoyé de mon Galaxy S7 en utilisant Tapatalk
Power is answer!
larrypolaris
Expert
I got mine from Hauck a couple of years ago. Try and call them.
Ontarioviperxtx
Extreme
- Joined
- Oct 2, 2016
- Messages
- 73
- Location
- Northern Ontario
- Country
- Canada
- Snowmobile
- 2018 Sidewinder xtx
16 viper xtx se SOLD
08 nytro rtx SOLD
- LOCATION
- Kirkland Lake
I am running the 8dn belt & cotc Iam getting belt slip when I first take off from a stop if sled is moving at all everything seems fine. What could be the problem?
