PoliticalMachine
Pro
14.5mm rollers to lower engagement better bite. 47 helix does this help with top end and backshift? don't know much about clutching so i'm looking to use stock parts to increase performance. so a set it and forget is what i'm trying to do. i ride in upper and lower MI on and off trail with some drag racing. wanting to keep up with my buddies F7. also all these parts can be purchased at a yamaha dealer or is there a cheaper and better dealer to get these items. Any advice is greatly appreciated. THANKS
mike3577
Expert
- Joined
- Oct 18, 2009
- Messages
- 309
- Location
- auburn hills,mi
- Country
- USA
- Snowmobile
- 09 nytro xtx, 8 inch slydog powederhounds, mbrp silencer, ulmer racing clutching, fast track studs,cr10ek sparkplugs,
better buy a kit from ulmer racing and fly past that cat
You should be able to find em used for well under $100 on here.
The 47 helps with upshift & acceleration.
If you want backshift your gonna have slower acceleration. If you want better acceleration you gotta give up some backshift.
Pick one...can,t have both.
I do have a lot more aggressive set up then backshift is totally gone.
The set up i gave you is a decent compromise.
The 47 helps with upshift & acceleration.
If you want backshift your gonna have slower acceleration. If you want better acceleration you gotta give up some backshift.
Pick one...can,t have both.
I do have a lot more aggressive set up then backshift is totally gone.
The set up i gave you is a decent compromise.
PoliticalMachine
Pro
is there much tuning after this set up or is it set it and forget it. i know if i want to tune it more i have to get a clutch kit like ulmer's. also what hole do you put the secondary spring in on the helix, same as it was. just trying to get an edge without spending much money, i've spent alot this year and no snow yet. Thanks
Your probably better of to buy a clutch kit.
Get ulmers cus he can help you dial it in if you have problems or issues.
Get ulmers cus he can help you dial it in if you have problems or issues.
PoliticalMachine
Pro
if i did ulmer's xtx clutch kit would that do everything you were doing with the rollers and the striaght helix. or could i combine them and make a super kit?
SledFreak
TY 4 Stroke God
- Joined
- Feb 7, 2005
- Messages
- 5,514
- Location
- Ontario. Canada
- Country
- Canada
- Snowmobile
- Current 2020 ThunderCat. - SOLD!
Just tell Ulmer you want to run the rollers and he can set it up from there... You might need a higher engagement spring to help bring back the low engagement.
yamahabandit
Expert
If your goal is to beat your buddy's F7 you better learn clutching.LOL.PoliticalMachine said:
fasteddie
Extreme
Will Ulmers stage 1 clutch kit get me close to the 2010 F8? How does the Nytro 121" do against the F8 stock to stock?
2010 f8 has 162 hp.
You have 135 hp.
The math ain,t there!
You have 135 hp.
The math ain,t there!
SledFreak
TY 4 Stroke God
- Joined
- Feb 7, 2005
- Messages
- 5,514
- Location
- Ontario. Canada
- Country
- Canada
- Snowmobile
- Current 2020 ThunderCat. - SOLD!
fasteddie said:
You will lose....
fasteddie
Extreme
Not sure where I read this but does it not beat it up to 70 mph on the hole shot? Or was that the old f8 motor?
dirkdiggler
Suspended
I beat up on my buddy's 2009 F8 pretty bad. I want to race a 10 to see the difference
2010 800 cat engine has 15 more hp the 09/08 model.
thetruck454
TY 4 Stroke Junkie
Honestly the nytro has the power of a strong 600 or run of the mill 700 2 stroke. It also weighs in more, but it has much more tq. Given a good hole shot the nytro will play with a 800 outa the hole, but it soon dies off. If you want to reliably beat a recent 800 (160+hp) outa the hole and on the top end you need to re-gear, and go turbo/sc.
