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post #1 of 20 (permalink) Old 12-06-2005, 02:25 PM Thread Starter
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Question ACT Diamond Drive or Chain Case

What’s the verdict on the pros/cons?

I know Diamond is smoother and chops about 11 pounds
But no reverse with the Diamond Drive.

Anybody got any info on acceleration or top speed comparisons?

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post #2 of 20 (permalink) Old 12-06-2005, 08:53 PM
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both work well, chian would be better if you dont know much about mechanics, DD will out preform a chian though.

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post #3 of 20 (permalink) Old 12-06-2005, 09:24 PM
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could someone explain diamond drive? is it a gear drive instead of chains?

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post #4 of 20 (permalink) Old 12-07-2005, 01:14 PM
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there is 2 gears that run of each other , after that there is a planetary set(john deere) that spins the track

Why john deere you ask? the ACT DD drive is the same as a john deere tractor rear end more or less.
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post #5 of 20 (permalink) Old 12-07-2005, 01:23 PM
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DD also allows for lower RPM engagment which will reduce trenching for people who like powder.

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post #6 of 20 (permalink) Old 12-07-2005, 03:09 PM
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All this sounds like mumbo-jumbo!! There is no functional difference other than the weight savings, mentioned by g-man. The DD does nothing the chaincase doesn't do, which is simply transfering the rotation of the jack shaft to the drive shaft. Each has the ability of gear reduction. The DD is simply better for weight & package! All clutching theory remains the same! Acceleration & top speed are uneffected.

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post #7 of 20 (permalink) Old 12-07-2005, 03:28 PM
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why cant they have reverse with a DD?
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post #8 of 20 (permalink) Old 12-07-2005, 04:26 PM
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cat still has mechanical reverse.


no advantages!? how about never having to replace/worrie about the chain, less parasidic losses and no jackshaft + a more responsive brake.

bottom line less parts do more, is a winner in my book.

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post #9 of 20 (permalink) Old 12-07-2005, 04:41 PM
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Quote:
Originally posted by sesnopro
cat still has mechanical reverse.


no advantages!? how about never having to replace/worrie about the chain, less parasidic losses and no jackshaft + a more responsive brake.

bottom line less parts do more, is a winner in my book.
No jackshaft!!???? How does the power get from the 2ndary to the gearbox??

Nobody said "no advantages!" Just said they do the same thing!!

Time to read things a little better, sesnopro!!

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post #10 of 20 (permalink) Old 12-07-2005, 06:42 PM
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Diamond Drive does not use a jackshaft becuse the gear case is on the pto side of the sled, thus the driven clutch is conected directly to the upper gear and the brake rotor is on the drive shaft. they are no were near the samething, plus it looks like you need to study a bit more IndianRvrShiver if you dont even know how Diamond Drive works.

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post #11 of 20 (permalink) Old 12-07-2005, 08:35 PM
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Re: ACT Diamond Drive or Chain Case

Quote:
Originally posted by gman250
What’s the verdict on the pros/cons?

I know Diamond is smoother and chops about 11 pounds
But no reverse with the Diamond Drive.

Anybody got any info on acceleration or top speed comparisons?

Happy Holidays!
Do you want reverse in your sled? If so dont even bother to look at any with the diamond drive... no reverse option available.

I will stick with my chainase thank you.

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post #12 of 20 (permalink) Old 12-07-2005, 08:43 PM
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You're correct...no conventional jackshaft!! I humbly bow down to you sesnopro!!
But I stand by my original post that they perform the same function, namely transfering the torque from the 2ndary to the track, albeit, with less weight, moving parts & better package. Conventional clutching theory/practice still holds. The DD has no effect on acceleration or top speed which was the original question posted by gman.

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post #13 of 20 (permalink) Old 12-09-2005, 11:38 AM Thread Starter
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Thanks for all the reply’s. A good friend of mine chose chain on his new 06 F7 and reverse being the only reason why. Electronic reverse of some sort, BRP style, would be far better than the mechanical setup on my 04 F7. I know my 04 700XCSP reverse was outstanding. I do believe they traded that technology with BRP.

Anyway, 30cm of snow coming tonight. I think we may get our first ride tomorrow.

Happy Holidays and safe sledding!

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post #14 of 20 (permalink) Old 12-09-2005, 07:11 PM
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couldnt be, because your engine doesnt stop and run backwards...

yeah, do some riding! ill be out this weekend.
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post #15 of 20 (permalink) Old 03-01-2010, 08:11 PM
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Dd

diamond drive saves wieght. I was told by arctic cat dealer that diamond drive cannot MPH as good, but them guys half time don't know half of what they should. I do know one thing for sure, if it breaks it is big dollars to fix. there is a planetary in there. hope this helps. I can't find to much info on it.
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post #16 of 20 (permalink) Old 03-01-2010, 08:25 PM
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Dd

ACT Diamond Drive Conversion Kit
This kit fits all ACT Diamond drives manufactured from 2005 to 2010 and transforms them into a custom High Performance driven clutch.
FEATURES

1.Currently the only torsional kit on the market to work with 2009-2010 electronic reverse.


2. Uses torsion spring technology.

3. Uses quick-change helix technology.

4. Easy to work on design.

5. Uses low cost helix and springs.

6. Greater selection of helix and springs.

7. Easy external roller replacement design.

8. Uses high quality CPC aero-space rollers.

BENEFITS

1. The use of torsion spring technology improves up shift(acceleration)and back shift.

2. Superior engineering allows for quick change of the spring and helix in less than 2 minutes.

3. Rollers can be replaced in seconds without clutch disassembly using an Allen wrench.

4. Increases belt life due to a decrease in belt heat.

5. Consistant clutch shifting characteristics due to higher lubricity and longer wearing rollers.

CP-000-0302 Diamond Drive Conversion $299.99
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post #17 of 20 (permalink) Old 03-01-2010, 08:25 PM
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Whoa! Bringing back a thread from 2005!
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post #18 of 20 (permalink) Old 12-28-2010, 03:13 PM
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i will have to say all this is bull.....i have heard it sucks 10 horse from dudes that have dynoed it..... but in my personal experiences it is not smoother possibly worse, clutching is different for some reason as well.....if it werent for that planetary it would be awesome why do they need the planetary??? why cant they simply gear it down to the desired gear ration then leave it
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post #19 of 20 (permalink) Old 12-28-2010, 03:45 PM
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WAY old thread, but when something goes bad in the DD, you better have some good money to fix it! I don't like them.

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post #20 of 20 (permalink) Old 12-28-2010, 04:58 PM
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No reverse on DD

Yes most of the newer models come with reverse. My 2008 with diamond drive has a reverse button. The motor does not run backwards like Ski Doo but they do have reverse, works very well.
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