HCS Snowmobile Forums - View Single Post - 2014 XF 8000, need to shed some 300+ peak RPMS
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Old 01-01-2018, 09:11 AM   #5 (permalink)
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cheftel13's Avatar
Join Date: Mar 2008
Posts: 3,011
Current Sled(s): 2017 XF Cross Country 8000
Previous Sled(s): 92'580ext,99'zr700,03'zr900, 07'F8 SP,12' F8 SP,14'XF8000
Location: Meriden, CT
Favorite Riding Area: Forks, Milli, Woodford, N.B.
19-20 Mileage: 1200
18-19 Mileage: 1300
17-18 Mileage: 1100
16-17 Mileage: 556 no mas
Age: 42
Riding Since: 1988

Originally Posted by Rubrsidedown View Post

Looking for a few clutching gurus that might have an idea as to what direction I should go it.

I have a 2014 XF 8000 Ltd. (137" track")

I made some changes over the summer.

New SSi Y Pipe, Carbon Tech Reed pedals (stock cages), relocated the air temp sensor and installed a set of Magna Force primary weights and D&D helix on the secondary.
New stock clutch springs front and rear.

Low end and mid range is VERY good. MUCH better than it was in stock form.
Peak rpms is the issue.
Revving 8440 at least.
Really want to be at 8150-8200.

I have the magna weights set up at 1,2,1,2 right now. 1 in the tip and so on.

What would be the best option to achieve 8150-8200 rpm at this point?

One more thing.
This is a trail sled, I'm a trail rider and that's all it will ever be. Just looking for peak performance for trail riding that's all. Not a lake racer and I know it. [IMG class=inlineimg]https://www.hardcoresledder.com/forums/images/smilies/grgrin.gif[/IMG]

[IMG class=inlineimg]https://www.hardcoresledder.com/forums/images/smilies/thumbsup.png[/IMG]
Rubber- I have the same sled
I haven't been able to open her up yet to see the max. On my 12, I used 77g cat weights to bring the rpms down to 8150. Try getting 77-79g w the magna weights. I have a d&d clutch kit on mine. Pulls hard from start, now just waiting to see how it is in the long run.

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