ATVPT

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We have been running the Dayco HPX2217 under very extreme field conditions here at ATVPT, and abroad at different Tests locations around the country.

We have found this OEM belt replacement to be very durable, and also competitively priced.

The bottom line is, I would recommend Dayco Products ATV Belts for anyone to use.

Now fellow ATV Brothers and Sisters, this Dayco HPX 2217 is a belt to be dealt with!!

ATV Product Review

Product:                     Dayco HPX 2217 Top Cog CVT belt

Test Duration:            1,100 Miles

Tested By:               Patrick Saunders

Review Date:              10/5/2005

I have put over 1100 miles on my belt since I have started the tests with the Dayco HPX 2217 Belt and I have felt it to perform outstandingly. When I stop to compare it with the original HP 2017 Dayco Belt, it is light years apart in appearance, construction, and functionality. When I received my first belts for testing I was really impressed with how they felt. The HPX 2217 belt is much more rigid to the touch, and appears from just looking at it to be a more durable construction.

I hoisted the quad on my lift and got ready to install the new Dayco HPX 2217 belt on my 04-700 Kawasaki Prairie. One of the things I need to stress is the correct procedure for anyone changing, removing or installing a cvt belt on your quad. In order to install any belt properly you should remove the primary clutch with a clutch puller. You then remove the belt as you pull the clutch off. Inspect the clutch for wear while you have it off. Then place the belt over your secondary clutch and your primary clutch. You then slide the primary clutch with the belt installed, on to the shaft. This is very easy to do, and you will not run the risk of destroying your belt when you do it this way. A very poor way to install your belt is to put your belt on the primary and force the belt on over the secondary clutch, wile potentially destroying your belt as you do so. This will cause premature belt failure sometimes. Now bear in mind that in the field you have to install your belt like this just to make it home. With great pleasure the HPX 2217 belt was installed and tested perfect deflection. I did not have to re-shim to get the proper deflection, like you have to do with some aftermarket cvt belts.

Well, after installing the HPX 2217 belt I was ready to start a regime of tests to determine if the new belt could hold up under the stress of our testing conditions. Bare in mind that we had set up a series of base line numbers with the OEM belt, that is supplied with the Kawasaki. Our tests were to compare how close the numbers would line up with the OEM belt. We were not sure if we would be on par or surpass the OEM belt requirements. I have on my test platform, as do some of my associate field testers, a temperature probe that monitors cvt belt exhaust temperature at all times while we are riding or stationary. One of our primary focuses was to monitor cvt belt temp to compare OEM to the new Dayco HPX 2217 belt. The reason for this procedure is because there is an optimum operating temperature for any belt. If you can keep the temperature within this range your belt will remain stable and function properly, hopefully lasting you for many miles of happy riding. If your belt runs too cool it will not hook up effectively. If it runs too hot it will deteriorate very quickly, therefore having a short belt life span.

Before I could calm myself down to get into some serious testing I had to take a quick test drive to see how the HPX 2217 belt so to speak, hooked up. As with any new belt or anytime you go riding you should break in your belt. Some of the experts will call it seating in the belt. I usually put a couple of easy miles on my quad before I get serious, and do any hard, full throttle riding.

My first impressions on how the HPX 2217 belt hooked up, were “outstanding”. I warmed up the belt which already felt like it was gripping the clutch sheaves very nicely. I tried a full throttle start from a stand still and almost went through the ceiling. It was gripping the sheaves like it had teeth. I thought to myself, you boys at Dayco have done your home work this time, thumbs up.

From there we proceeded to get serious with the testing.  We have a regime of tests that we put the stock OEM belt through first. First we took the quads out and ran them on our trails hard for 5 miles. We recorded the cvt belt exhaust temps while doing these trail test runs (comparing OEM temps to the Dayco HPX 2217 temps). Second we did a drag test, which consisted of a hauling a weighted sled attached to the rear of the quad, for a distance of 5 miles. We then compared the OEM temps to the Dayco HPX 2217 temps. Third we did another hard 5 mile trail ride, recording the temps as we drove the trails (also comparing the OEM temps to the Dayco HPX 2217 temps).  Theses tests were done back to back. We repeated these tests everyday for a week. We took off a week in between tests, for normal trail riding.  We repeated the tests by-weekly again over the months with outstanding results in the wear department. Now this HPX 2217 belt has been pulled off my quad many times during the tests to check for wear and to test other belts for comparisons. Every time I checked the belt it appeared to have very minimum wear with absolutely no stretch in the belt. My testers keep asking me if they can switch to the Dayco HPX 2217 belt for testing, so my Dayco rack on my wall is always in need of replacements.

I would say without hesitation that the Dayco HPX 2217 belt will be my first choice for an OEM replacement Belt.

Ratings are on a scale from:  Excellent - Great – Not Bad     

Build Quality:                  Excellent

Durability:                      Excellent

Functionality:          Excellent

Terrain Type:           Rocky, Sand, Hard Pack, Mud.

Recommendation: It is the # 1 choice for jps/Patrick

 

 

ATV Product Review

 

Product:                      New Dayco HPX 2217  Proto-type belt

Test Duration:            10/11/2005 to 10/11/2005, over 200 miles

Tested By:                 Jody Robinson

Machine:                   Suzuki Twin Peaks 700 (same as Kawasaki 700 Prairie)

Review Date:             10/11/2005

No complaints here, only praise.  I installed the belt without any problems.  I replaced my OEM 700 belt that had nearly 1,000 miles on it. The installation of the new HPX 2217 Dayco belt did not require a shim change in the secondary, and the deflection turned out to be right where I like it, on the tight side at ¾” (19mm).  For comparison, my OEM belt was still in good condition, it had almost 1” of deflection (25mm) and the width is still within specs, but getting close to the thin limit.  It was starting to slip during very hard deceleration, when the KEBC kicked in. 

Something very sweet happened when I got my quad back together, fired it up, and put it in gear.  NO SQUEAL!!!! Even with the belt on the tight side, and the quad creeping up a little at idle, there was no irritating familiar squeal, as with the OEM.  I thought for sure it would eventually start sounding like a pig in pain after it heated up, but it never did.  Grip was excellent.  At least as good as the OEM was.

I have installed a temperature probe inside the exhaust snorkel, as close as I can get it to the flexible boot.  This lets me keep an eye on the temperature inside the cover.  There are two reasons for this.  One is to evaluate belt performance and predict reliability; the hotter a belt runs, the quicker it will fail.  The other reason is to warn me of a possible clogged CVT filter.  No, that wasn’t a typo.  I have installed a filter of my own design to keep water, mud, debris and dust out of the CVT sheaves and clutches.  More on that in a separate write-up. 

The temps I have been reading are favorable.  At ambient temps of 70 to 80 degrees F, the CVT temps hovered between 140 and 150.  Only on one occasion did the temps climb to 160.  That was after a very long steep hill climb under nearly constant WOT.  A lot of factors change temp readings.  I don’t let my machine idle for more than 1 minute before I cut it off.  I also put my tranny in neutral when I’m idling.  If you do these things, you could experience higher temperatures.

UPDATE 10-21

After running the belt for a short period of time (less than 5 miles) with an Dalton orange/blue spring and doing a lot of drag race style starts, the belt started to show some wear.  I have not been drag racing, but I have been re-jetting to compensate for muffler and intake mods.  The WOT throttle starts were done to evaluate engine performance as well as see how the belt handled the higher engagement RPM of the new Dayco belt.  I did warm the engine fully prior to these tests. 

Now the deflection is at 13/16”(20.6MM) and the contact edges are showing some wear.  I have since switched back to the lower engagement of the Dalton blue spring.  I loved the acceleration, but I’m not comfortable with the combination of the O/B with the new HPX-2217.  I think the higher engagement RPM’s of this spring really take it’s toll on this belt or any belt I would have used for these tests. Bottom line, keep away from high engagement springs for any type of ATV trail riding.

 

Ratings are on a scale from 1 to 10    

Build Quality:    9 – no visual defect

Durability:      9 – so far so good, no problems

Functionality: 10 – fits like OEM, without the OEM squall

Terrain Type: 10 –aggressive trail riding, rocks, light mud, steep hills, informal drags

Recommendation: Barring failure over the long haul, YES, HIGHLY RECCOMMENDED!

 

 

 

 

ATV Product Review

Product:                    Dayco HPX 2217 Drive Belt

Test Duration:          10/25/2005 to 10/25/2005

Tested By:               Lyle Pakula

Review Date:           10/25/2005

Initial Impressions:

Heavier, more durable belt.  Tended to keep round more than the stock unit. 

Installation:

Similar to the stock belt, but a little harder to shim due to it’s stiffer nature.  Found that it likes to creep a bit when shimmed properly, but a minor complaint.

Operation:

Testing was done on a variety of conditions.  Worst case testing was driving into a 24” deep water hole, with 3-4” of soft mud at the bottom.  It was navigated at slow speeds, in high range.  At the end of the hole, the belt still gripped fine.  If it did get hot enough to chirp, then a few minutes of no-load driving cooled it off, and it was fine.  If the same hole was attempted with a stock belt, it would start to slip half way through, and it would have been necessary to switch to low range.  The stock belt would have taken an hour to cool off to a point where it would grip again without chirping.

The belt hooks up faster than the stock unit, and my only complaint is that it causes the machine to creep on smooth surfaces (due to it’s round shape).  Considering the performance and durability improvements gained, I’d accept the creep as a minor by-product.

 

Ratings are on a scale from 1 to 10    

Build Quality:                  10

Durability:                    10

Functionality:                9

Terrain Type:             1-10 (sand, mud, grass, hard pack, muskeg)

Recommendation:        10

 

 

ATV Product Review

Product:                     Dayco HPX 2217

Test Duration:         08/04/2005 to 12/8/2005

Tested By:               Gary Ditchfield

Machine:                   2004 Kawasaki Prairie 700 (Highly Modified for Drag Racing)

Review Date:           12/08/05

Location tested:      Calgary, Alberta, CN

 

 

I was given this belt at least 4 months ago. So far it has worked rather well, far better than the Carlisle exploding belt. I used it for basic all round mudding and playing around pretty much what the normal person would do for 3 months. Only to make sure it wasn't to grenade on me like the Carlisle belt has done with little to no pressure. I have been told that I am less than one percent of the populace that likes to take my machine to the extreme. Well then it is time to find out how this new belt will hold up.

I have put it through repeated high speed drag races with no immediate grenading which is a major plus. I have found out it does run cooler than the stock belt which is good for longevity and it seems to be rather durable. I did however find it does leave black belt marks when I approach 9000 rpm and this only happens on the top part of the front sheave. I tried other springs weights to see if would stop the problem, but it would do it in degrees. More spring pressure more scuff marks but understand this only happened above 9000 rpm. Most people would not be able to get their machine anywhere near that high.

Since I have also been trying a new CDI I decided this would be perfect time to test the belt as well. I made 40, 300 foot drags one after the other which is more than enough punishment on a belt it worked well. Now in the last 15 runs I made, the speed of the machine started to drop off, I did decide to check the belt.

 

 I checked over the belt it didn't show any frayed threads to show it was going to grenade. This is good at least when you start to slow down, you know it is time to change the belt. This is a lot better than BOOM, yep time to change the belt.

In brief this belt is very close to OEM standards, but far better and a lot more reliable than the Carlisle belt. For the price of the belt I would use a new one for a race with out a doubt and have no worries. Longevity I would say %75 of OEM reliability at least to my grueling punishment.

Gary Ditchfield
Field Tester

 

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