3854 Boul Henri-Bourassa est Montreal Quebec, H1H 1K5, CANADA Open in Googlemaps Fermé jusqu'au 11 janvier 2021. As you provide your questions below, we'll relay them to Kelsey and staff. Hopefully, this article will clear up some of the mis-conceptions that surround this engine and its internal design? If you have any questionscall us anytime we're here to help. The Polaris rod is approx 132mm in length and the stroke is 70mm yielding a rod-ratio of approx 1.88. Visual inspection will tell you NOTHING about the size of your piston. Wiseco is a USA manufacturer for performance products such as forged pistons, clutch baskets, gasket kits, connecting rods, valves, crankshafts, and camshafts for motorcycles, dirtbikes, ATV, snowmobiles, PWC and automobiles. These pistons, we offer, are FAR from ANY "off the shelf" OR "aftermarket" piston available today! The truth is that the Factory OEM Piston has a .020" offset to help relieve thrust pressure near Bottom Dead Center (BDC). you can also send in your stock haed and he will cut it for his domes. Our custom pistons HOLD their tolerances..  AGAIN.. LOOKING fine and MEASURING fine are 2 VERY different things! AUTOMOTIVE DIVISION POWERSPORTS DIVISION. If it uses a 1/4" shim under it, then this is most likely the case. He said an honest 10 hp and have nothing but positive feedback on it. When you are talking to us, you have our full attention and will not be cut short. Some aftermarket pistons, such as the ones used by MTNTK Performance and RK Tek, are made of forged metal. One would hope that any of these other pistons would also contain this same OEM offset. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). This Block is being sold with 2 Matched RK Tek FIX PISTONS. Installing ANY clever named piston kit will NOT fix your thin walled cylinder skirts! Two actually as i have the head and test pistons on my both 2017 and 2011 bikes. RK Tek 2 Stroke Performance. Thread starter Danzick; Start date Dec 15, 2010; Forums. the rktek pistons are custom cut from sea doo pro x pistons and must have his cylinder head to work. Installng a RKTek Drop in Piston and Head Kit on a 2012 Polaris Pro RMK 800cc. RK Tek Inc is your premier 2 Stroke Performance Shop.. ALL we do is 2 Stroke Engines! Doing a compression check will not yield any relevant information regarding the health of your PISTON SKIRTS. Box 1513, Woodstock, Ontario N4S 0A7 Order and Technical Assistance Phone : … If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. ALL my pistons are designed from a blank sheet of paper and made with custom components (No, they are not 100% Wossner). Used Polaris Snowmobile 600 Pistons RK Tek Replaces 2204900 for 2014 and others - with wrist pin bearings. RK Tech. Friend of mine having fun with a Polaris RMK 800 PRO 2013 mod with RK TEK and SLP Stage2 kit. This is 100% false!! They have very a proprietary design that is unique to ALL of our pistons. Link to his channel: http://www.youtube.com/user/vipe84 Kawasaki Ninja ZX-14R. However, the piston design is not much better than the 800 Piston. It is a widely held belief that the OEM Polaris pistons are too small from the factory and this is where the issues lie with the OEM. The REAL issue is that the OEM piston does not REMAIN in spec after use. We have spent the time and developed a Piston Kit and a Drop In Piston/Head kit for the 600 Twin.. Machined from one solid piece of metal, these pistons are stronger and lighter, thus giving a longer lifespan and better performance overall. In other words.. your piston can LOOK perfect but MEASURE out of spec. They are 100% unique to RK TEK! Convincing you to believe that their piston has an offset where others do not is simply misleading. Ok, so I was reading the rk tek article from there web site about the series 111 motors and wanted some feedback on that. This FUJI crank is a superior crank to the MAPE in every way. _____________________________________________________. Snowmobiles: Brands, Performance & Modifications. We NEVER use "call waiting" to  "click" over to another call. This is not a bad change but does very little to aid with the skirt collapse, extreme piston weight, and heavy ring drag. Clever named kits do not address the MAPE Crank Issues! The new AXYS piston is basically, the SAME piston with some added oil retention grooves on the exhaust upper skirt. its got 1900 miles on it with around 100 psi of compression so we are going to replace the pistons. Installing ANY piston kit (including ours) AFTER running the OEM pistons will NOT remove any stress or fatigue that MAY have already occurred in your cylinder. Fantastic service, and a pleasure to talk with Kelsey on the phone to place my order. PLEASE, be patient if you get the voicemail and leave a message. ALL of the 2008-2012 800 Engines were prone to lower cylinder skirt cracking! The MAPE crank was discontinued in 2013 and newer engines in favor of a new manufactured crank by FUJI. NOTE: We return every phone call if a clear message is left. KTM and Husqvarna. The MTNTK fix kit addresses piston failure that is common with some Polaris engines. It is a sports bike from Kawasaki, which is one of the fastest bikes in its segment. We address this with our REV 2 Drop In Kit. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. RK Tek also builds one of a kind custom CNC machined parts for any application. If you have any questionscall us anytime we're here to help. The piston kits we offer (some call a fix kit.. we do not) are the highest quality piston on the market today.. Page 1 of 3 - RK TEK head.....10 hp gain - posted in REV Chassis - Performance and Trail Models: I have been checking into more mods and I think Im going to get a RK TEK head. Polaris thickened up the skirt, again, for 2011-12 CFI-2 Engines. This is a great modification and can be done by any competent machine shop. What we need is someone who has an RK Tek head already on their bike, to install the new concept piston. Kelsey Tek Kelsey Manning. It pleases me to see all the interest and hope Kels has another batch of pistons made up so i can have one ready when the time comes. This allows your 2011-2012 engines to run with the better 2013 cylinder. These pistons, we offer, are FAR from ANY "off the shelf" OR "aftermarket" piston available today! Heat is one of the primary causes of skirt collapse and skirt collapse is ONE of the primary issues with the OEM design.. This MAPE crank has a high failure rate of the lower rod bearing and the outer bearings. In other words,  IF your cylinder is fatigued, it will STILL be fatigued once a better piston is installed. More clearly, the rod ratio is too small for this engine. There are some massive gains to be had by drastically altering the piston design. 7) Another held belief is that the new AXYS piston has addressed the OEM short-comings mentioned above. 2 were here. Installation of ANY of our pistons will allow ANY Polaris CFI engine to reach a higher potential. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). RK TEK says they run the Boondocker control box but my mechanic is convinced the Power Commander V and Auto tuner is the way to go. Came off a 06 skidoo 800 rev. September 17, 2019. They claim that the cure for ring flaking and poor performance under long loads for the series 111 motor would be to replace the OEM piston and rings and head with there dual ring pistons and there hemi head. And it has to be on a bike where the stock piston isn't totally clapped out as that could give a false sense of performance gain. Some will also have you believe that they have installed a "special" pin offset. I picked up a set of these on Friday. Therefore, the rod ratio on the Arctic Cat 800 engine is WORSE than that of the Polaris 800 engine. 1) The 600 Polaris Engine is a great engine!.. If you're on a budget and want to try some slightly used Pistons go with RK Tek. Both of these kits offer SIGNIFICANT performance enhancement and extend engine life! Pistons * Rings * Wrist Pins Rods * Gaskets * Sleeves HOME AUTOMOTIVE POWERSPORTS Company Info Dealer Application Catalog Request Overstock Piston Sale! RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Our CUSTOM pistons (Direct replacement, Drop In, AND Big Bore) are CUSTOM designed! Talked with them a few times and the gains are real good. Yes, that's right, RK Tek draws results from "real world" testing, 1245 Industrial Park Rd.Preston, ID  83263 Phone: 208-852-3221, Copyright © 2017 RK Tek - All Rights ReservedCreated by Mountain West Web Design. They are designed with hard anodizing on the ring lands, pin boss and crown underside AND custom coating on the crown. Wishing you all a very Merry Christmas, from our family to yours! Cart empty × Cart empty ... Polaris Patriot 850 Dual Ring Direct Replacement Pistons; Motorcycle Performance. We feel this piston to be mildly superior to the previous piston but also feel it is a lesser quality piston than what we offer. The truth is that the OEM piston's tolerances are in spec, they just don't stay there. It has EXCESSIVE skirt taper.. RK Tek SKI-DOO 800R/ETEC Drop In Piston Kit ETEC Kit is ONLY $570 PTEK Kit is $845. They are in good shape and I was tempted to put them in a different engine however I can't bring myself to put in used pistons. Remember this, VERY IMPORTANT, a compression check will tell you little to nothing about the health of your skirts. Condition is "Used". Closed up to Jan 11. It suffers from skirt collapse and it is also WAY too HEAVY! Dec 11, 2008 596 50 28 Livingston MT . You can have a BROKEN off lower skirt and the compression reading will not change! Ski-Doo: ZX Sleds. The Rod-Ratio is the ratio of the rod length to the stroke of the engine. Re: RK TEK head and new concept piston 2017 300 xcw test. Look what's in Dirt Bike magazine this month. 2) The 2008-2009 CFI-4 engines had a VERY thin lower cylinder skirt that was prone to cracking especially once the OEM piston gets lose in the bore. D. Danzick Free Member. Christmas came early for a few of our customers! We are the ONLY company that has a kit to aid in lower piston skirt support. Used in there Billet cylinder head. This Price Already Includes a Refundable Core Deposit of $100. Doug Gardner. Installing a better designed piston that will remain in tolerance (spec) will greatly aid in helping your thinner walled (2008-2012) cylinders survive. FEED SYSTEMS MANUFACTURER AND SUPPLIER All products manufactured to PED and ASME standards FEED SYSTEMS MANUFACTURER AND SUPPLIER All products manufactured to PED and ASME standards Applications SR-TEK containers setup Applications Why SR-TEK What our brand stands for Why SR-TEK References Some of our projects References PRESSURE TANKS Stainless steel swing … well worth it if your looking for some more performance. This is the first start up after complete too end rebuild including new plated and machined cylinder and Rk tek drop in piston kit. Please speak loud and clear when leaving a message. Based on these FACTS, I think it is safe to assume that the rod-ratio is not an issue and claiming that is nothing more than a scare tactic. The drop in kit consists of a custom 2 ring piston that is designed to have tighter cylinder clearance which will help to minimize piston "rocking" or "slap" in the cylinder. The RK Tek Line of Customs Pistons are VERY Unique... ALL pistons are designed from a blank sheet of paper and uses only the highest quality of components. I'm not sure as I'm a newbie. The longer the rod, the higher the ratio, given the same stroke. The phone is busy all day long servicing our clients. With the Polaris CFI Engine (ALL 2 Injector Models), the lower half of the engine is dry.. meaning there is little to no fuel entering there. 5) It is also believed that there exists a Rod-Ratio issue with the Polaris 800CFI engines. These Forged Pistons are Engineered 70 Grams lighter than Stock -- Engineered with proven results by Kelsey Manning at RK TEK to Ensure Skirts Will Not Rock and Crack. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. As Eastern Canada's newest exclusive dealer for RK TEK , Kelsey see's our dedication to the sport of high performance sledding here at SLED-WERX Racing and shares our passion in providing our clients the very best and the most accurate information on products possible! THIS is a great modification to perform and will help with crank failure. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. Performance Shop.. all we do is 2 stroke engines the Rod-Ratio is the first start up after too. The new AXYS piston is rk tek pistons canada of spec is unique to all the! Empty... 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