FYI..NEW Product Announcement. Polaris 800 Direct Replacement Pistons

[RKT]

After some teardowns and inspection of both stock and our drop in kit pistons.

We have decided to offer a Direct Replacement Piston for the Polaris 800.

Our testing and inspections show that the stock piston has several "short-comings" that can lead to failure.

Please do NOT be confused by all this "rod/ratio" problem talk.. Our findnigs have shown that there is NO rod ratio problem with this engine..

Also the idea that a spacer plate and a taller piston fixes anything?? is simply false. If anything, adding a spacer plate will worsen an existing design flaw. BUT. I am not here to talk about the "other" kits. So , please do not ask. I am simply here to inform others that there is a new product on the market that will help with engine longevity.

While there are some "What were they thinking" aspects of this engine.. the rod ratio is not one of them..

While we can not address ALL the issues we see with this engine we can address a very big one in the piston design.. and that is what we have done with this new offering.

We have proven this design with our Drop in Kit that was offered this season and was accepted with fantastic results!!

This new kit is an extension of this drop in kit WITHOUT the need for the custom head.

So, This new piston kit will help address the issues we have seen..

We will be offering this kit throughout the Summer and the following seasons.

Price will be very reasonable and affordable.


Feel free to call if you have any questions

Kelsey

 

[diamonddave]

Also the idea that a spacer plate and a taller piston fixes anything?? is simply false. If anything, adding a spacer plate will worsen an existing design flaw. BUT. I am not here to talk about the "other" kits. So , please do not ask. I am simply here to inform others that there is a new product on the market that will help with engine longevity.


Kelsey

Thanks for the FYI.

However, it seems to me you already did talk about the "other" kits.

If you were truly only here to inform us about your new product, could the spacer plate and taller piston not fixing anything and worsening an existing design flaw comment been left out?

 

[Sheetmetalfab]

Compatability

This piston is going to be a match for the stock head. Would you be able to add your head after the fact? I know you dont recommend anyone elses products, but there is quite a few sleds with heads out there. Hopefully these pistons will be compatible with the par, slp ect heads. Seems you could sell quite a few pistons.

 

[Norway]

We have decided to offer a Direct Replacement Piston for the Polaris 800.

Looks like we might be doin business after all.

 

[Super Sled]

Isnt the drop in kit new head, pistons, and rings? How is this different? Just use stock head and rings?

 

[RKT]

This piston is going to be a match for the stock head. Would you be able to add your head after the fact? I know you dont recommend anyone elses products, but there is quite a few sleds with heads out there. Hopefully these pistons will be compatible with the par, slp ect heads. Seems you could sell quite a few pistons.

Yes, these pistons will work with the stock or any other aftermarket head..

As for our heads comparing to anybody elses.. I will let my track record speak for itself.. We have a patent on our head design. That speaks volumes.. Try getting any patent on an internal combustion engine head and see.. Not to mention the cost of the patent.. If it did NOT work, it would be foolish to spend the insane amount of $$ needed to obtain a patent!

We have been in business a VERY long time.. Longer than most ...

Again, I will rely on the history of the company to tell the tale..

Enjoy

 

[indydan]

Very Nice.

Hi Kelsey.

Talks Cheap & beer cost money.

So I guess 5 years down the road were all going to find out who really knew what was right & wrong with the SB 800.

Cheers to pistons !! Well done !!

Most of us remember what you said was wrong with the Polaris BB 800 cranks............( saved the thread. )

Something along the lines of the 70mm x 85mm was just a bad Bore/stroke ratio combo.............

Wouldn't that also be wrong with the SB 800 ?

Good to see your still trying.

Talk to you in 5 years.

Dan

 

[Angermangement890]

Will this drop in kit require a reflash of the ECU to perform properly? What RPM will the new drop in piston kits operate at? How does the powerband of the Polaris engine with your pistons change?

Is the clutching and RPM you run with these pistons the same as stock or are other modifications needed?

How does your "Drop In Piston" vary from a Stocker? Did you Off set the Wristpins to reduce side loads? Barrell Shaped Pistons? Different Skirt Shape? More material near the wristpins? Do they have a similar shape to the 2011/12/13 stock Polaris pistons? Do you utilize a Garfal Skirt coating on the piston and a Hard Anodized crown like the stockers? The pistons shown are for your 860 Big biore and are Wiseco?

Are you going to be offering a warranty on the engines that you build/install these pistons on?


I have had expierence with the 800 & 827 Ski-Doo kits you offer, I remember having to have ECU's reflashed after the fact for the full performance, and the need to increase RPM on the 800HO to around 8450 RPM with your piston/head. The drop in engine made OK power but was always needing to be tweaked for conditions as it fell on its face when under/over the 8450 mark. Other 7/800's in our group had no issues running with the drop in kits/big bore options you offered. My brother has a 827, he has seriously contemplated going back to a stock 800 HO engine as it pulled more primary weight with all the same clutching/gearing between the 2 engines. His 01 700 Summit with a Dyno Port Pipe/can is as fast as his 827... and he spent tons of time working on his 172 hp 827.

 

[paulharris]

i am assuming that installing these pistons will void the polaris warranty?

 

[pura vida]

i am assuming that installing these pistons will void the polaris warranty?

yeah, i think that would be pretty safe to assume.

pv

 

[knifedge]

--yeah, void the warranty, but probably will not need it

 

[ryan_625]

I am waiting until january for anything. My warranty is up in Feb. so then it is game on! Hopefully there will be some in the snow by then too for some field testing.
Or I may just pony up and go 860...

 

[assault11]

If its something as simple as changing pistons in these motors to make them reliable why hasn't Polaris done it?

 

[Pro-8250]

If its something as simple as changing pistons in these motors to make them reliable why hasn't Polaris done it?

My thoughts exactly!!

 

[beamslayer]

Holy chit --Pandoras box has been opened let the games begin.
Poo rider against Poo riders for talking smack about a poorly designed engine
Aftermarket against aftermarket trying to fix said engine
Polaris Ceo and engineers sitting back waiting for the dust to settle than cashing in $$$$
I hope we end up with a well deserved engine and Poo sends someone a big fat check for fixing something they can not or will not address.

Warranty on this engine does not cut it there should be a recall instead on all 800 that have gone down due to piston and skirt issues.

 

[Pro-8250]

After some teardowns and inspection of both stock and our drop in kit pistons.

We have decided to offer a Direct Replacement Piston for the Polaris 800.

Our testing and inspections show that the stock piston has several "short-comings" that can lead to failure.

Please do NOT be confused by all this "rod/ratio" problem talk.. Our findnigs have shown that there is NO rod ratio problem with this engine..

Also the idea that a spacer plate and a taller piston fixes anything?? is simply false. If anything, adding a spacer plate will worsen an existing design flaw. BUT. I am not here to talk about the "other" kits. So , please do not ask. I am simply here to inform others that there is a new product on the market that will help with engine longevity.

While there are some "What were they thinking" aspects of this engine.. the rod ratio is not one of them..

While we can not address ALL the issues we see with this engine we can address a very big one in the piston design.. and that is what we have done with this new offering.

We have proven this design with our Drop in Kit that was offered this season and was accepted with fantastic results!!

This new kit is an extension of this drop in kit WITHOUT the need for the custom head.

So, This new piston kit will help address the issues we have seen..

We will be offering this kit throughout the Summer and the following seasons.

Price will be very reasonable and affordable.


Feel free to call if you have any questions

Kelsey

Thanks for the info.
Your statement of...Price will be very reasonable and affordable... is open to interpretation. Something affordable to some may not be to others. Wouldn't it save time to post prices?
I have talked to three dealers here in Minnesota and they CLAIM they have not had one 2011,2012, stock 800 go down.
It seems anyway that the motors going down are happening in the higher elevations. You have a great knowledge of motors, so does elevation play a roll in engine failures?
Thanks again.

 

[tdorval]

Thanks for the info.
Your statement of...Price will be very reasonable and affordable... is open to interpretation. Something affordable to some may not be to others. Wouldn't it save time to post prices?
I have talked to three dealers here in Minnesota and they CLAIM they have not had one 2011,2012, stock 800 go down.
It seems anyway that the motors going down are happening in the higher elevations. You have a great knowledge of motors, so does elevation play a roll in engine failures?
Thanks again.

He never puts prices on here. Just go to his site its on that... As far as elevation break downs, I grew up riding back east. We ride wide open a LOT more out here than the type of riding I grew up doing back east, maybe the motors are just more stressed out here...

 

[INDEEP]

The PMS kit addresses both the rod ratio issue and the sloppy piston dimensions. There should be some Dragons with that kit with some big miles on them by now.

 

[Leaf27]

The PMS kit addresses both the rod ratio issue and the sloppy piston dimensions. There should be some Dragons with that kit with some big miles on them by now.

I agree 100%. But we wont hear from the people running these kits b/c there out riding.

check out high mark rentals in west yellowstone talk to Ron he has a whole rental fleet of these, with 2500 to 3000 miles on them.

3000 miles is pretty much what you will get out of a 800R before the crank bearing goes. Not sure why People on this site refuse to believe that MTNTK'S "THE FIX KIT" actually works.

 

[gus bohne]

probably a drop in the bucket but. tis yr alone I have 13 people switched to Wisecos OUT of the box and not only no breakage but NOT 1 single issue period.


Yes these are ALL turbos so maybe that plays a roll and all are above 5000 feet. 7-21 psi and still we have not seen a single issue and no wives were harmed or their tails...lol



gus