RK Tek drop in kit
- Thread starter ProRMK24
- Start date
R
Reddragon800
Well-known member
To be completely honest... No. The kit does make more power but the type of power is a lot different than stock. The advanced port timing makes the motors power band very steep, or peaky!! If you don't have it clutched perfectly around 8400 rpm its the same as stock. When it is dialed in it goes pretty good, but if snow conditions change a bit or you go a bit higher in elevation or your belt isn't adjusted perfectly then it falls easily out of its high rpm power band. If you don't mind always tinkering with it you will like the kit. If I were you I would get the MNTNK fix kit, head and a programmer for close to the same money, and have more power and torque and be able to use all of the power more often. But that's just my 2 cents!!!
N
Newby2sleds
Member
I'm on the other side of the fence and think it's worth it. Mine has been great. Definitely feel a power increase all the way through the power band. It revs way faster than stock. I don't feel that the power band is to "peeky". You most likely will need to add more clutch weight. IMO even in tight trees at lower RPM it runs better than stock. Depends on what sled you have aswell. I have a '12 and RKT says you don't need a fuel controller. I bought a boondocker fuel controller to do some fine tuning.
YES! Mine runs flawlessly. My clutching was set up by SPS and runs 8350 to 8400 everyday. True you do have to make some adjustments to your belt when you switch one out, but I haven't had to tweak it more than once or twice to get it back to full RPM. I've ran the cat 048 belt on it as well, but it takes more adjustment to get perfect. I suppose depending on how and where you ride could make a difference on which kit to get. We ride tight steep trees and it works great. So far, I have nothing but good things to say about the kit.
R
rmscustom
Well-known member
I don't find it that peaky and feel it has a power advantage throughout the rpms (rev 1 kit). No worse to clutch than a stock sled imo. Heard good things about the SPS clutching set up if your looking for a little better backshift than the roosters and stock components provide.
Only downfall I had was the supplied fuel box numbers are not even close... The instructions do say they are just a starting point though.
Only downfall I had was the supplied fuel box numbers are not even close... The instructions do say they are just a starting point though.
M
mrkimbell
New member
i honestly was done with my 12 last year just felt the sled didnt have enough power tried to sell it in the fall and was gonna go back to a cat no takers so i decided to put the rkt kit in ill keep this sled now it really does wake it up i ride with two different cat big bores and im very close to them so i feel it was 800 bucks well spent havent felt it was hard to get the clutching right either this is one thing ive always been impressed with on this sled is the efficiency and responsiveness of the clutches to changes as far as reliability i cant comment on that yet as ive only got 300 miles on since installation
Went with the Rev2 kit on my Trail Sled.
HeavyPorted case,reedspacers
Pc5,SLP pipe 12:5 domes for sea level
And pumpgas.
Had to use 3-5% more fuel into it than with
PAR head to wake it up.
Run flawless and cooler than With PAR head
And spins 8400+and was easy to clutch.
Have 500 trail miles on it with alot midrange
Cruising and have not had a single DET.
Will do it again fo shure.
HeavyPorted case,reedspacers
Pc5,SLP pipe 12:5 domes for sea level
And pumpgas.
Had to use 3-5% more fuel into it than with
PAR head to wake it up.
Run flawless and cooler than With PAR head
And spins 8400+and was easy to clutch.
Have 500 trail miles on it with alot midrange
Cruising and have not had a single DET.
Will do it again fo shure.
M
miko700
Well-known member
reliability?
Lets talk reliability instead of power. Many feel that the rkt pistons are balanced better with less piston "slap" resulting in less heat and less chance of a piston skirt breaking and turning yer engine into a metal blender of destruction. I had one engine go at 1200 because of this i am sincerley considering it for this reason.......whadya think about that?
Lets talk reliability instead of power. Many feel that the rkt pistons are balanced better with less piston "slap" resulting in less heat and less chance of a piston skirt breaking and turning yer engine into a metal blender of destruction. I had one engine go at 1200 because of this i am sincerley considering it for this reason.......whadya think about that?
J
Jkinzer
Well-known member
I have been selling/installing drop in kits in the Pro's since 2012(probably in the ball park of 50 drop in kits on the snow over the years) and we have not seen 1 failure due to the kit, every customer that has purchased the kit loves how it wakes up the motor and the low end torque you gain from such a simple kit. I sell my sleds pretty fast to build new ones but my 2012 which was stock w/ a drop in had over 1100 trouble free hard miles on it when i sold it and my 1st 13 had around 800 when it was sold, 2nd 13 is 700 and counting. These kits are far and away worth the money if your looking for more performance out your Pro, if you like to tree ride add a camo X3 and you have a lethal combination
R
rmscustom
Well-known member
I was hoping to get enough miles on this year to justify taking it apart and measuring the pistons but it looks like I'm done at 800 miles for the year. For what its worth somebody on another forum says hes put in 30ish of these kits and took a few apart with 1200-1500 miles and could not measure a difference in the pistons vs new ones... Pretty good for a 2s piston.
I'm at 3500-7000
M
miko700
Well-known member
Well thats where im at to be honest........I
I love the idea of "15 or so" horses that they speak of....but lets face it the pro rocks! and after a few years of "the real engine builders" discussing it the main issue seems to be "pistons" and turnin up the oiler 2.5 turns or so. It seems as though an 800 dollar investment has a good chance to "buy" another 1500 plus miles after the initial 1500 they seem to go.......and thats cheaper than 3000-4000 for new/rbuilt engine. Also....thanks Kinser
I love the idea of "15 or so" horses that they speak of....but lets face it the pro rocks! and after a few years of "the real engine builders" discussing it the main issue seems to be "pistons" and turnin up the oiler 2.5 turns or so. It seems as though an 800 dollar investment has a good chance to "buy" another 1500 plus miles after the initial 1500 they seem to go.......and thats cheaper than 3000-4000 for new/rbuilt engine. Also....thanks Kinser
R
RMKED
Well-known member
Still on the fence
Can't decide which way to fall... I just turned 1700 miles on my stock 800 and it still runs strong. I turned the oiler up when I first bought the sled and I'm sure that has helped with longevity, but, I know I'm getting to the point of having to rebuild the top end and this kit will be the way I go if thats the side of the fence I fall on. My other option is the PAR 910. Locally built, so if there are any issues its only an hour + drive to get it worked out.
Who is riding above 8k with this kit and what are the pros / cons so far. Clutching tips? Any thing else I should know?
Can't decide which way to fall... I just turned 1700 miles on my stock 800 and it still runs strong. I turned the oiler up when I first bought the sled and I'm sure that has helped with longevity, but, I know I'm getting to the point of having to rebuild the top end and this kit will be the way I go if thats the side of the fence I fall on. My other option is the PAR 910. Locally built, so if there are any issues its only an hour + drive to get it worked out.
Who is riding above 8k with this kit and what are the pros / cons so far. Clutching tips? Any thing else I should know?
R
Reddragon800
Well-known member
I have 800 miles on this kit this year. I have ridden lots of my buddies stock sleds and they are just as fast. Mine is a 12 and theres is a 13 and 14. Like I said before, if its a new belt, I will be a bit faster than then them, but not buy much. I didn't buy this kit. I bought the sled with the kit installed. Like I said before, if it was my money I would run this kit. There are other ones that make the same power but have better torque. My cousin has a different kit and is faster than mine and his is an 11, and it makes more usable power.
The kit im running is the one without the spacer, I think that the first one.
The kit im running is the one without the spacer, I think that the first one.
N
Newby2sleds
Member
You keep saying faster? These are mountain sleds. The '13's and '14's have a bit more performance than the '12's not to mention the quick drives. I don't see how you can judge a kit's performance in a drag race.... too many variables. I have found a big difference. Coming out of some of the bowls I don't have to be wide open to make the top for one. The engine sounds completely different too. I really found value in the RKT kit.
R
Reddragon800
Well-known member
Don't assume I meant drag racing. just over all seat of your pants power!!. My motor sounds different too. All im saying is for the same money you can get other products that I think work better!! Is it better than stock..... yes. A good set of pistons will always help. But I just don't like the design. Also, the kit claims 15 hp!! I know the 13 and 14 sleds are more efficient, but 15 hp should be faster than a stock sled. All I see is guys have fuel problems, clutching problems, and an overall pain trying to run these kits. Either way, the motor is getting a new rebuild this summer and ill post what im running then!!
R
rmscustom
Well-known member
Few things I think of when I see stock sleds beating a modded sled.
#1 The mod is junk and looses power.
#2 The sled with the mod isn't tuned and clutched right.
#3 The sled has other issues other than the mod.
A lot of products get bashed for #3.
Just a thought, not saying its your problem.
#1 The mod is junk and looses power.
#2 The sled with the mod isn't tuned and clutched right.
#3 The sled has other issues other than the mod.
A lot of products get bashed for #3.
Just a thought, not saying its your problem.
Which one in your sled?
So... Are you NOW running the RKT kit in your own sled?
If so... Is it the Version-1 or Version-2?
.
So... Are you NOW running the RKT kit in your own sled?
If so... Is it the Version-1 or Version-2?
.
G
geo
Well-known member
I think he answered these questions in post # 15 MH, which is why he posted his opinion (based on personal experience) in post #2 in response to the OP's question.
RMS was spot on. "Kits" need tuning from stock. Compound that with different years (engine management) and IMO that is why people post originally. To figure things out.
So others post how they got it to work on there sleds based on their experience and the OP has to do the sifting.
One thing is for sure. Everyone would like to bolt on 15 HP on a pro lol.
I have a honest question for you MH (because your opinion is very respected). Have you personally run this kit or had a chance to ride one set-up right beside a stocker?
If so what was your feelings experience? 15 ponies over a '14 stocker? Are you going to put one on your '15?
RMS was spot on. "Kits" need tuning from stock. Compound that with different years (engine management) and IMO that is why people post originally. To figure things out.
So others post how they got it to work on there sleds based on their experience and the OP has to do the sifting.
One thing is for sure. Everyone would like to bolt on 15 HP on a pro lol.
I have a honest question for you MH (because your opinion is very respected). Have you personally run this kit or had a chance to ride one set-up right beside a stocker?
If so what was your feelings experience? 15 ponies over a '14 stocker? Are you going to put one on your '15?
Similar threads
