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Helping with clutch heat and blowing belts

G

ghost rider

Well-known member
Dec 1, 2007
651
333
63
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1st clean clutches often on first ride (scotch brite pad).
2nd gear from 21 to 19.
In the primary put in 433 ramps or ramps that the rt 1000 used.
Make sure your primary spring is 160/290 or 160/320 or close to.
Load your pin weight to 16 grams for 154" track or 15 grams for 163" track.
With hollow pin it is 12.5 grams.
Leave the secondary stock!
Gearing down and throwing more weight will allow the clutches to pinch the belt and eliminate slipping preventing heat. It will also will increase track speed allowing you to kick a** without blowing belts.
This set up is for 5000ft and higher. Don't be afraid to ride in clicker 1 or 2.
My 2 cents and have fun.
 
Last edited:
A
Nov 30, 2007
144
0
16
Kelliher,Sask
1st clean clutches often on first ride (scotch brite pad).
2nd gear from 21 to 19.
In the primary put in 433 ramps or ramps that the rt 1000 used.
Make sure your primary spring is 160/290 or 160/320 or close to.
Load your pin weight to 16 grams for 154" track or 15 grams for 163" track.
With hollow pin it is 12.5 grams.
Leave the secondary stock!
Gearing down and throwing more weight will allow the clutches to pinch the belt and eliminate slipping preventing heat. It will also will increase track speed allowing you to kick a** without blowing belts.
This set up is for 5000ft and higher. Don't be afraid to ride in clicker 1 or 2.
My 2 cents and have fun.

So is this for the TRA7 on the 07 doos???? i wanna do mine but did not know what to put in it yet.
 
G

ghost rider

Well-known member
Dec 1, 2007
651
333
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This set up works on both the 07 and 08's.
07 800r/light weight, w/151" powdermax
08 154" eversest w/can
 
160/320 spring would be a Purple/Purple if I'm not mistaken???
What are the 163 X's coming with for ramps from the factory?
163 w/ Powdermax is supposed to have 19 top already, has anyone pulled chaincase to verify?

I'll have to check my pinweight too but I believe it's around the 15 mark, so my stock setup is pretty close to what you are stating to be a good setup, right? I found it to be pretty good on the first ride last weekend but I was taking things pretty easy most of the time and the sled was just starting to wakeup when I got back to the truck.
 
S
Nov 28, 2007
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1st clean clutches often on first ride (scotch brite pad).
2nd gear from 21 to 19.
In the primary put in 433 ramps or ramps that the rt 1000 used.
Make sure your primary spring is 160/290 or 160/320 or close to.
Load your pin weight to 16 grams for 154" track or 15 grams for 163" track.
With hollow pin it is 12.5 grams.
Leave the secondary stock!
Gearing down and throwing more weight will allow the clutches to pinch the belt and eliminate slipping preventing heat. It will also will increase track speed allowing you to kick a** without blowing belts.
This set up is for 5000ft and higher. Don't be afraid to ride in clicker 1 or 2.
My 2 cents and have fun.


THATS IT?
Well sweet ....Good ole DOO
 
G

ghost rider

Well-known member
Dec 1, 2007
651
333
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163x

Thanks Ghost Rider, have you guys done any testing on the 163" yet?

We haven't changed gearing yet but have done the spring, weights, and ramps(433) and it helps a ton. We plan on dropping one tooth on gear.
And for heavier riders 200 lbs plus we changed helix to 40/36.
 
G

ghost rider

Well-known member
Dec 1, 2007
651
333
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ramps

160/320 spring would be a Purple/Purple if I'm not mistaken???
What are the 163 X's coming with for ramps from the factory?
163 w/ Powdermax is supposed to have 19 top already, has anyone pulled chaincase to verify?

I'll have to check my pinweight too but I believe it's around the 15 mark, so my stock setup is pretty close to what you are stating to be a good setup, right? I found it to be pretty good on the first ride last weekend but I was taking things pretty easy most of the time and the sled was just starting to wakeup when I got back to the truck.

The ramps are 413 stock which are less steep. The stock spring on both 154 and 163 are purple/purple or 160/320.
 
G

ghost rider

Well-known member
Dec 1, 2007
651
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ramps and weights

i see that the 433 ramp is steeper than stock. What is the advantage of this ramp with more pin weight compared to stock setup?

By having a steeper ramp and throwing more weight you will shift out faster, pinch your belt harder so it doesn't slip and hold your rpm's better. The more weight you throw the faster the track speed you will achieve and the less likely for belt slipage when you hit the hard spot on the hill.

For example: Past weekend 154" clutched and 163" stock with no weight in pin. The 163" tached great at 3 clicks but track speed was 38-39 in 3ft of bottomless powder. The 154" clutched and geared properly on the same hill side by side was pulling 44 mph track speed and high marking the 163" by 8 sled lengths. The 163 clutches were to hot after to pulls and the 154" you could put your hands on with out burning. Noticeable difference.
 

Ephratafarmer

Well-known member
Premium Member
Nov 26, 2007
473
183
43
Ephrata, Wa
Just thinking out loud, when you run steeper ramps you slow the shift down just like running 4 on the clickers rather than 1 or 2, but when you put more pin weight in, you make the shift faster, so why does that make less heat in primary clutch, than just adding enough weight to the pins, to make ya move the clicker up a couple numbers to maintain your RPM? I do know that by adding pin weight you grip the belt harder, because ya collapse the primary spring faster, more force ya know. Like I said just my thoughts.--Ken
 
G

ghost rider

Well-known member
Dec 1, 2007
651
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Ken you are right in your thinking. The 433 starts at a different curve and ends at a different curve than the stock 413. You are also correct on the pin weight- heavier the pin weight the faster it shifts out and holds easier under pressure. The set up i have recommended holds rpms at a lower clicker and allows me to run 18 grams at clicker 2 at 10,500 ft and holds 8300 rpms all day and cool clutches. The set up all together rocks. I just wanted to give everyone who is having problems a set up to try and it will amaze on performance over stock. No weight in the pins will hold rpms but it will cook the clutches and slow track speed.
 
S
Dec 2, 2007
1,242
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Cottonwood
will 434 ramps work instead of 433?

Ken you are right in your thinking. The 433 starts at a different curve and ends at a different curve than the stock 413. You are also correct on the pin weight- heavier the pin weight the faster it shifts out and holds easier under pressure. The set up i have recommended holds rpms at a lower clicker and allows me to run 18 grams at clicker 2 at 10,500 ft and holds 8300 rpms all day and cool clutches. The set up all together rocks. I just wanted to give everyone who is having problems a set up to try and it will amaze on performance over stock. No weight in the pins will hold rpms but it will cook the clutches and slow track speed.

Will 434 ramps work in this clutching scenario?
 
G

ghost rider

Well-known member
Dec 1, 2007
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Yes we used them on one of our sled because our dealer was out of 433's.
 
C
Mar 3, 2006
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Utah
Hey Ghost, what weights come stock? I was under the impression they were 12g weights. I pulled them out, but was planning on putting them back in this weekend. Do you think I should put 15g weights, or just the stock ones? It sounds like the 163" is alot closer than the 154" as far as gearing goes. Thanks for taking the time to do the R&D for the rest of us! :)
 

Ephratafarmer

Well-known member
Premium Member
Nov 26, 2007
473
183
43
Ephrata, Wa
What primary spring are ya using with the 433`s, I`ve got a,160--320, a 160--290, and a 160--260. I can come up with a set of 433`s, they were stock 1000 ramps, I`m always willing to try different things, hope I`m never to old to learn. Thanks --Ken
 
R
Nov 26, 2007
197
10
18
New Meadows
Just a little more info. I have a 163 XP and the belt has never been to the last inch of the primary. At 67 mph on the flat I hit the rev limiter! Running clicker #3 Has stock pin weights, I think. Running at 6000 to 7500 feet.
Was going to add 6g pin weight for the next ride and see how that works. Have not had the clutch apart yet to check for any binding, todays work.
Now starting to think I should change ramps to 433.

RickPDX
 
G
Nov 27, 2007
27
0
1
Smithers BC
I think if you change to 433 ramps you will hit the rev limiter in about three seconds. Running those ramps would be like running clicker 6. The RT 1000 runs considerably heavier arms than the Summits do. That is why you need to add so much weight when running those ramps. In order to get any real top end speed you would need more weight than the 800 motor can realistically throw.
I can see those ramps giving great bottom end and midrange but falling flat on top due to their steepness and the inability of the 800 throwing the arms far enough from clutch centerline IMO.
 
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