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It’s weird that they make their clutch weights specifically for a certain elevation range??

2020 Kawasaki KRX 1000, 0-3000’ elevation, oversized tires. (can be also used with stock tires)
At the risk of sounding like an idiot, what does elevation have to do with it??
 

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At the risk of sounding like an idiot, what does elevation have to do with it??
Evevation changes effect normally aspirated engine performance causing a lower horsepower power band. Clutching for sleds at different altitudes, and difference performance envelopes is a very common practice. A good sled tuner will ask a lot of questions of the rider to get what the rider wants out of the sled. My son and I had two identical 1000 CC sleds, his was clutched for performance, mine for geezer riding. Mine would pull way good on take off, his would dislocate joints it would pull so hard. The only difference was clutching. It's an art. The elevation question caught my eye and indicates a tuner who just may know his stuff.

BTW, in my mind the only stupid question is the one not asked!
 

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Evevation changes effect normally aspirated engine performance causing a lower horsepower power band. Clutching for sleds at different altitudes, and difference performance envelopes is a very common practice. A good sled tuner will ask a lot of questions of the rider to get what the rider wants out of the sled. My son and I had two identical 1000 CC sleds, his was clutched for performance, mine for geezer riding. Mine would pull way good on take off, his would dislocate joints it would pull so hard. The only difference was clutching. It's an art. The elevation question caught my eye and indicates a tuner who just may know his stuff.

BTW, in my mind the only stupid question is the one not asked!
Very interesting, thanks for the schooling.
With that in mind, as the aftermarket companies catch up, I would imagine you’ll see more clutch kits designed for different altitudes. I’ll have to do some more reading up on this topic, as I’d like to see if it’s better to put money on a clutch kit, or a super charger. If at 5 to 7k feet of altitude, (where I ride) where is the best bang for the dollar.
:unsure:
Thanks again!
 

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The right answer is get both ( clutch kit and supercharger) as they complement each other.

A substantial number of the rides in our area start at 8000' plus and can go to over 12000. Personally, I think exra power isn't cost effective for the type of riding we ( me personally) do as the roads are rockey and narrow. Not to say that a SC or TC wouldn't be cool. If we did more desert and dunes a forced induction and requisite clutch work would be much higher on a to do list.

My son's highschool best friends dad is the owner of a pretty dialed in powersports dealership that did a lot of sled performance stuff (crazy like 300hp+ TC hill climber sleds) any and every mod included a clutch redial.

The Deranged off road guys did a nice piece on a clutch kit with a lot of adjustability built in. IIRC, they shaved something like 2 seconds off their 0-60 time on a KRX. That is performance money well spent. Point being, your clutch is a big (and often overlooked) factor in gaining the most performance out of your car. A good tuner always considers clutch settings when changing things. Your gonna be fiddiling with your clutch a lot if you want performance maximums....period. one of the big advantages to a belt CVT xmission is the variable clutching adjustability.
 

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The right answer is get both ( clutch kit and supercharger) as they complement each other.

A substantial number of the rides in our area start at 8000' plus and can go to over 12000. Personally, I think exra power isn't cost effective for the type of riding we ( me personally) do as the roads are rockey and narrow. Not to say that a SC or TC wouldn't be cool. If we did more desert and dunes a forced induction and requisite clutch work would be much higher on a to do list.

My son's highschool best friends dad is the owner of a pretty dialed in powersports dealership that did a lot of sled performance stuff (crazy like 300hp+ TC hill climber sleds) any and every mod included a clutch redial.

The Deranged off road guys did a nice piece on a clutch kit with a lot of adjustability built in. IIRC, they shaved something like 2 seconds off their 0-60 time on a KRX. That is performance money well spent. Point being, your clutch is a big (and often overlooked) factor in gaining the most performance out of your car. A good tuner always considers clutch settings when changing things. Your gonna be fiddiling with your clutch a lot if you want performance maximums....period. one of the big advantages to a belt CVT xmission is the variable clutching adjustability.
That was our clutch kit in the video
 

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That was our clutch kit in the video
It appears to be a very intuitive, well thought out design. The adjustability options certainly caught my attention. Most of the kits I see get you "kinda where you need to be....maybe." That's OK, I guess if your good with "kinda where you need to be....maybe." That can leave a lot on the table performance and drivability wise.
 

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So with that kit, how do you know which weights to install?
We set it up close when the customer orders and fills out the drop down menu. Our weights are externally adjustable (you don't have to remove the weights to adjust them), so the customer can dial his/her setting in based on altitude, tire size, exhaust/flash and weight of accessories.
 

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Anyone use or hear about these?
Looks like the RCOR kit but is black and comes with springs. They have two kits, low and high elevation.
Dalton | Kawasaki ATV / UTV Products DUV KR1
I just put the <3000 elevation kit in my machine.
The kit comes with primary and secondary springs along with adjustable weights depending on your tire size.
It has turned my KRX into a hole shot monster.
I am running system 3 XT300 33inch and it would not break those tires until I put the Dalton kit in....very happy!
2702
 

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I just put the <3000 elevation kit in my machine.
The kit comes with primary and secondary springs along with adjustable weights depending on your tire size.
It has turned my KRX into a hole shot monster.
I am running system 3 XT300 33inch and it would not break those tires until I put the Dalton kit in....very happy! View attachment 2702
So u guys that installed the dalton kit ,what did u notice between the stock primary spring and the one dalton provided?
 

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So u guys that installed the dalton kit ,what did u notice between the stock primary spring and the one dalton provided?
The Dalton weights are 25% lighter than stock with no weight added so they set the primary spring rate according to the weights, weight. It seems to run a little more rpm in my machine with no weight added and 35's. From a stop it goes to 8k rpm and holds throughout the shift. My buddies machine with the RCOR weights, stock tires and no tune, goes to 8,300 rpm and lowers to 7k rpm at the end of the shift. The Dalton secondary spring is a bigger thing if running larger tires. It backshifts into a low ratio quicker to get the RPM up for the bigger tires.
 

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That was our clutch kit in the video
Not sure about the Right Coast off-road kit for I made the huge mistake of spending $429 on the Dalton kit and to be honest what a joke the kit only has 49.5 miles on it on my machine with only 775 miles on it and the primary spring is bent and the weights are already chatter marked at the tips like the stock weights not happy with my personal experience with this at all was going to buy the Right Coast off-road kit and decided on the Dalton what a huge mistake for me on cruising back roads on my machine so my machine isn't beat on maybe just my bad luck with the Dalton kit my rollers and clutch are in very good condition do I know that's not to blame for the failures. Duranged off-road did a great video on the Right Coast off-road kit.
 
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