Is it reliable? Yes, that's right, RK Tek draws results from "real world" testing It will install on the Dragon 4 injector engine but we have done ZERO testing with the Dragon 4 Injector Engine. If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. (PLEASE CALL FOR PRICING) He had this done by Smith Marine last year, and put 1000 trouble free trail/ lake miles on it in the Old Forge area last season. We are not going to get bogged down with HP figures and such.. Just , rest assured, that this kit DOES produce the power! Sections of this page. See more of RK Tek on Facebook. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). If you have any questionscall us anytime we're here to help. Starter ein eigen tråd for oss Polaris guttar/jenter som er innteressert og nysgjerrig på big bore kitet til Polaris 800cfi2 som Kelsey på RK Tek slipper i løpe av sommaren. Jump to. Sure I'll buy your products. Running the Stock Pipe! Interesting. Create New Account. Log In. motor work, exhaust, fuel map, suspension, clutching is all included. There are yet no reviews for this product. 98 99 00 01 Arctic Cat Zl600 Zl 600 Zr Efi Cylinder Head Heads Temp Sensor . We have developed an 858 CFI Big Bore Kit that will make stockers look like 600's.. Polaris 02-05 800 Ves 85mm Std Cylinders Snow X Pistons Big Block Rmk Xcsp. The RK Tek (www.2strokeheads.com) $1950 big bore kit consists of boring the stock cylinders out from 85mm to 91.5mm and fitting them with proprietary tight-fitting forged pistons. We use the same piston in this kit that is used in out 738cc over-bore (600HO and 700 Series III Engine). Get your Polaris 800 online! Big bore kit 144cc Enduro Engine - 2 stroke KIPS, gaskets & WISECO $850 KX250 fits 1995 #1751 Big bore 295cc Ported plated cylinder, WISECO & gaskets $595. From this point on, all vendors/mfg's promoting Pre-Season tiered sales programs, in the Polaris Forums, that are not paid advertisers will be appropriately moved to the swapmeet section of the forums. 1992 Polaris Indy 500 Efi Sp Cylinder Head Heads Temp Sensor Liquid Cooled Nice. This is huge in reducing stress on the crank and reducing piston side load forces! My main concern about an overbore kit, not anyones in particular, is that if there is already the ocasional motor failure due to the bottom of the cylinder breaking off, Does it make sense to thin that cylinder out even more? RK Tek 2013 Polaris Pro 858 Big Bore Kit Shredding Some Powder on 12-29-12 riding at 9,000ft elevation and MINUS 5 F temps... Engine is VERY happy and making great power! So, if you did nothing but FIX the piston.. you would be increasing performance. or. Featuring polaris 800 available for sale today. Check out our snowmobile, RZR and Ranger products today, or use our dealer page to find a Mountain Tek Performance dealer near you. Kelsey Tek Kelsey Manning. I have been researching this and I might give it a go. I'll leave it at that. RK Tek is in Preston, ID, not near sea level, so he tests mtn setups. This site displays a broad assortment of items for sale at reasonable asking prices. Complete Engine; Component; Snowmobile; Complete; Motor; Carburetor; Find Engines For Sale Online . Polaris 850 Patriot MTNTK Blow Hole. on a quiet night you can hear a 910 big bore sneaking away to hide !! JmeiZ. rk tek 925 kite 184 hk-192+ hk koster $2350,- * dollarkurs * norsk mva , de ekstra $200,- er frakta t/r rk tek blir mest sannsynlig lagervare fra sommern/høsten i tillegg … Yes, that's right, RK Tek draws results from "real world" testing I don't want to miss out on it? It will completely transform your Pro from a zig/zag, I am powering out, up the hill type ride to a sled that will ACCELERATE up the hill with no fade! If you have any questionscall us anytime we're here to help. This over-bore turns your 600cc engine into a 662cc engine. 6:1 Piston Kit, and Cometic Top-End Gasket Set. The big bore kits feature the durability kit for more reliable performance.... and huge power! Showcasing our big variety of on sale! this is a complete turn key set-up. high turbulence, textured squish bands. The FUN FACTOR is increased like crazy when you have a platform this good that finally has some power behind it. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Polaris: Pro-Ride. Yes, that's right, RK Tek draws results from "real world" testing 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 860 big bore - posted in REV-XP / XM Chassis - Mountain Sleds: I am looking at the rk tek 860 for my new T-3. Since its introduction, MANY other shops have also developed an 860 for this power-plant. $125 obo SLP Twin pipes (black) - fits 2002-2005 Polaris 700 RMK models. Email or Phone: Password: Forgot account? 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. hi Kelsey. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access … Has anyone big bored any of their 800's from RK Tek on here, any brand? Share. I see YOUR shop can get 30HP from an ETEC but NOBODY else can?? Let's recap: First mods we recommend for your sled are a Durability + Bolt-On Performer Kit which would get you roughly 168-170 HP. PLEASE check out our YOUTUBE page for Videos of ALL of our Big Bore Engines, http://www.youtube.com/user/torqueline/videos. Yes, I have an RKTek.. Snowmobile Engines. Polaris® Sportsman® ATV Announces 2019 Big Bore Lineup. 08 summit x 800 163” Rk tek 860 big bore Dyno port pipe an can with cooker can Aftermarket running boards Storage bag under windshield Boss seat Full Klim wrap Engine rebuild last season one season on engine maybe 600km on rebuild Proof of rebuild 5200 obo Favourite. Share. 08 summit x 800 163” Rk tek 860 big bore Dyno port pipe an can with cooker can Aftermarket running boards Storage bag under windshield Boss seat Full Klim wrap Engine rebuild last season one season on engine maybe 600km on rebuild Proof of rebuild 5200 obo Thanks SSH i do have a few questions.. First pull: 06 rev 800 with fresh rk tek 827 big bore kit install Price is VERY reasonable ($2150 (plus the Fuel Control Box) or $2050 with RKT Cheater Head Option). Let's recap: First mods we recommend for your sled are a Durability + Bolt-On Performer Kit which would get you roughly 168-170 HP. Yes, that's right, RK Tek draws results from "real world" testing RK TEK POLARIS 800CFI Drop In Piston Kit only $845 12HP gain . Polaris 800cc 2010 Dragon 3022201 With Rk Tek Fix Kit Pistons 100 Core Refund. 2008-2009 Polaris … RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. this package is a dream come true for hot rod trail riders, and lake racers that like to drop the hammer 22. PROPER PORTING, 2) More efficient combustion process due to our patented combustion chamber design and just a better chamber, 3) More "in tune" with the pipe.. this always makes power, 4) Increased RPM of the engine.. HP = Torque X RPM/5252 So RPM is ALWAYS a player.. more RPM= MORE HP as long as torque is staying constant or increasing. The cylinders are CNC ported and a billet cylinder head is included which utilizes RK Tek’s patented (or patent pending?) View a wide selection of Snowmobiles Used and other great items on KSL Classifieds. Sled runs amazing and has always started on the 2nd or 3rd pull. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. high turbulence, textured squish bands. Selling some pipe sets - all used SLP Single Pipe & Can (black) - fits 2002-2005 Polaris 800 RMK models $100 obo Ceramic coated SLP pipe, Y pipe and "The Thing Can" fits 2002-2005 Polaris 700 RMK models. I do know you , you have called me SEVERAL times … And I've had my share of disagreements with Kelsey but I can tell you from experience his stuff works, no question. The ETEC has a VERY smart computer and MANY sensors to give this computer inputs to what is needs and what it does not need. Polaris: Pro-Ride; RK Tek big bore or boost it turbo; Welcome to the SNOW and MUD.com website. One of the best parts of this kit is that it WILL run (and is designed to run) using the Stock components. Create New Account. While there, now, exists many 860cc Big Bore kits not all are created equal. and MINUS 5 Degrees F.. engine runs perfect! Polaris Slp 726 727 Heads Domes 12-7275 600 Big Bore. Just because there is no external fuel controller does NOT mean it is getting the same fuel as it was before the Big Bore. or. 1) Increased Airflow, due to better flowing ports.. Compare to other "kits" that cost 2.5 times this amount. RK TEK SKIDOO MXZ800/ 827 BIG BORE Here is PA resident Jeff Stranges’ RK Tek modified MXZ. Many hours on it, no, unfortunately. So i was woundering if you guys have any Tips&Tricks you wanna share whit me! This is a 2006 M7 with an RK Tec 800 Big Bore. Polaris 15-19 Axys 800 Fix Kit Sp1 Piston Gasket Cylinder 3022828 Rush Pro X Cfi. Next step would be to go big bore and depending on the sled, you can see up to 185 horsepower! The 858 piston is actually LIGHTER than the OEM 85mm piston. wanted to see if anyone has any input or luck with theirs? Polaris Patriot 850 Dual Ring Direct Replacement Pistons. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Log In. Related Pages. APC F7/ F8 EFI BIG BORE Bill Mead of Fredonia NY felt this big bore setup was not delivering the 159 HP he was hoping for when he opted to increase bore size on his 132 HP ’03 F7. Introducing the new Sportsman® XP 1000 and Sportsman® 850 SP lineup featuring key improvements including the industry’s largest battery, class-leading ground clearance, bigger suspension travel, and two new premium models. 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. This kit is designed for the 2011 and newer PRO (2 Injector Engine). RK TEK POLARIS 800CFI Dragon/RMK PRO BILLET HEAD only $465 . If you are looking for HUGE TORQUE and HP Gains.. then look no further. - How many miles/ hours on the BB? Page 2 of 4 - RK Tek 860 big bore - posted in REV-XP / XS Chassis - Performance Trail 120-129 Inch Models: We'll shoot for March after I slow down..I will enter the shoot out.. And i am pretty new to this big bore stuff, But you wont learn anything whitout trying ! There is NO DOUBT that this mod is the best mod for the money you can do. Polaris. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. Choose your weapons wisely. $3,500.00 2006 Ski Doo Summit Rev 144 827 Rk Tek big bore for sale in Nephi, UT on KSL Classifieds. I'll use your sled.. after I big bore it..What shootout are you going to enter? NOTE: RK Tek was the FIRST to develop this 860cc big bore. Your final settings can be different. 2003 polaris rmk 800 vertical edge, has a 925 big bore kit with psi cylinders and adjustable heads, has psi carbs, v-force3 reeds, psi exhaust, upgraded tunnel and track and lots of other goodies. $6,800.00 Custom 2008 skidoo renegade 827 big bore electric start reverse Edmonton 24/11/2020. 6,466. 95 800 HO - 1749. Other than the big bore, he has stock everything else—reeds, airbox, pipe etc that have all proved very optimal in our tuned-up stock F7 testing. Polaris Patriot 850 Dual Ring Direct Replacement Pistons. Big Bore Kits / Replacement Parts. I think it is obvious to the readers here that you like to bash every other shop that is not YOUR shop.. etc. This kit has been on the snow for many seasons and has been performing flawlessly! 95 800 HO - 1749. Reliability is NOT compromised in any way, shape, … Has anyone big bored any of their 800's from RK Tek on here, any brand? RK Tek 860 Big Bore Kit unboxing!! It was developed in December of 2006 (remember the 800R was introduced in the 2007 Summit model only). 12,019 Posts #21 • Apr 29, 2016. jfaub63 said: 860 making 190 converts to 177 out of an 800. Sign Up. He can be abrasive but he knows his stuff. 6:1 Piston Kit, and Cometic Top-End Gasket Set. Press alt + / to open this menu. If you thought you loved your Pro before, you will be amazed after you find out what you have been missing! Regular price $249.99 View. $3,500.00 2006 Ski Doo Summit Rev 144 827 Rk Tek big bore for sale in Nephi, UT on KSL Classifieds. Rob1334 wrote:I know of one in alaska and one in washington that failed. Accessibility Help. This over-bore turns your 600cc engine into a 662cc engine. RK Tek Arctic Cat ProCross 800/ 925 Big Bore Jim Czekala This new 2012 Arctic Cat ProCross 800 was modified for trail use for an anonymous trail rider (“Rider X”) who wanted to have fun with his pals who ride stock Arctic Cat Z1 turbo sleds. 13 RPM Mode Percentage Base (2011-2013 Sleds), RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Buy Scooter Big Bore & … If you are ordering cheater heads, we will need to have your OEM heads to make the modifications. September 17, 2019. Prototypes or not it failed.. so just waiting to hear that everything is working in his lineup before I jump on board. Rider X sent the stock cylinders to Kelsey at RK Tek for conversion to higher HP 925cc big bore. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Buy Polaris 800 on eBay now! You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. View a wide selection of Snowmobiles Used and other great items on KSL Classifieds. Simple as that. 22. See more of RK Tek on Facebook. Polaris IQR 860!! ! Der neueste, leistungsfähigste und vielseitigste RZR, der je gebaut wurde (64" breit) Look what's in Dirt Bike magazine this month. - YouTube We ,PURPOSELY, designed this kit to run with MINIMAL changes over stock! He had this done by Smith Marine last year, and put 1000 trouble free trail/ lake miles on it in the Old Forge area last season. 8ci and has an unreal 5. Directly to your inbox. 300 miles. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. high turbulence, textured squish bands. Arctic Cat Wildcat Trail/Sport BMP Bolt-On Kit or Slip … (PLEASE CALL FOR PRICING) Big bore kit 144cc Enduro Engine - 2 stroke KIPS, gaskets & WISECO $850 KX250 fits 1995 #1751 Big bore 295cc Ported plated cylinder, WISECO & gaskets $595. 5)MUCH better designed piston.. Stock pistons are .008" -.009" clearance after about 300 miles--> with a lousy geometry.. Doug Gardner. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. There are yet no reviews for this product. POLARIS > RK Tek Drop in kit is the real deal! Arctic Cat Wildcat Trail/Sport 700 to 800 Speedwerx Big Bore Kit; Arctic Cat 700 H1 to 750cc H1 Speedwerx Big Bore Kit; Arctic Cat 1000 H2 to 1100cc H2 Speedwerx Big Bore Kit; Polaris Scrambler 400 to 440 Big Bore Kit | Replacement Parts; Polaris Outlaw/Predator 500cc to 600cc Big Bore Kit | Replacement Parts; Head Porting: 4-Stroke ATV / UTV Buy Scooter Big Bore & … RK Tek 2 Stroke Performance. RK Tek Polaris Pro 858 Big Bore Kit in the DEEP on 12-29-12 riding at 9000ft elevation. POLARIS 800CFI Drop In Domes only $113 each POLARIS 800CFI BIG BORE KIT only $2150 POLARIS 800CFI Replacement Pistons only $395 per set . Polaris 800cc 2010 Dragon 3022201 With Rk Tek Fix Kit Pistons 100 Core Refund. The RK Tek (www.2strokeheads.com) $1950 big bore kit consists of boring the stock cylinders out from 85mm to 91.5mm and fitting them with proprietary tight-fitting forged pistons. Share with: Link: Copy link. Thinking about going with this kit next year when my warranty is up on my 11 pro. 6,466. Facebook. It ,REALLY, is that simple... No aftermarket pipes, cans, reeds, etc. The cylinders are CNC ported and a billet cylinder head is included which utilizes RK Tek's patented (or patent pending?) The big bore kits feature the durability kit for more reliable performance.... and huge power! Runs great and has lots of power. Subscribe to our newsletter. Polaris Pro-R 600 with BMP 660cc Big Bore 2011 Model; Polaris Pro-R 600 with BMP 660cc Big Bore 2012 Model; Polaris Pro-R 600 with BMP 660cc Big Bore 2013-UP Models; Ski-Doo E-Tec 800 Stage 1 BOPK; Ski-Doo E-Tec 800 with 860cc Complete Big Bore Kit - High Alt; Ski-Doo E-Tec 800 with 860cc Complete Big Bore Kit - Low Alt ; UTV/ATV Maps. 2008-2009 Polaris . Promotions, new products and sales. MH . Page 1 of 4 - RK Tek 860 big bore - posted in REV-XP / XS Chassis - Performance Trail 120-129 Inch Models: This thing rocks !!! Arctic Cat 650 H1 to 700cc Speedwerx Big Bore Kit; Arctic Cat Wildcat Trail/Sport 700 to 800 Speedwerx Big Bore Kit; Arctic Cat 700 H1 to 750cc H1 Speedwerx Big Bore Kit; Arctic Cat 1000 H2 to 1100cc H2 Speedwerx Big Bore Kit; Polaris Scrambler 400 to 440 Big Bore Kit | Replacement Parts Who all has expierience with this kit? to buy.. JUST THE KIT!! Thanks for your imput!! Enjoy the outdoors like never before with our innovative products! PLEASE NOTE:   You will need to CALL for this kit and you must send in your cylinders and RAVE valves in order for this kit to be completed. Next step would be to go big bore and depending on the sled, you can see up to 185 horsepower! Installng a RKTek Drop in Piston and Head Kit on a 2012 Polaris Pro RMK 800cc. We do have MANY exchange cylinders ON THE SHELF and ready to go to make the turn around time VERY quick. Sports Team. Not Now. Id say it's doable Click to expand... Nope. NOTE: These are ONLY reference fuel settings.. So, this is no exception.. The RK Tek (www.2strokeheads.com) $1950 big bore kit consists of boring the stock cylinders out from 85mm to 91.5mm and fitting them with proprietary tight-fitting forged pistons. 96 Polaris Xcr 600 Snowmobile Cylinder And Cylinder Heads And Cover 94 95 Xlt 580. BIG Plans for the New Polaris 850 engine! Thread starter rockhead00; Start date Mar 3, 2014; Forums. 14 posts Previous; 1; 2; AKSNOWRIDER. RK Tek sets itself apart from other performance shops by testing its products in the best lab in the world - the great outdoors. Share with: Link: Copy link. We use the same piston in this kit that is used in out 738cc over-bore (600HO and 700 Series III Engine). the jaws pipe is the way to go to get the real big power, but with the dome's on my kit has to much comp to get real big power without race gas. RK TEK 827 Big bore. Anyone else considered this? What do you have to say about it? Anyone else considered this? Rattle in motor. 15 posts 1; 2; Next; rk tek 858 big bore rk tek 858 big bore. We will require your cylinders and Exhaust Valves to do the conversion. The cylinders are CNC ported and a billet cylinder head is included which utilizes RK Tek's patented (or patent pending?) Polaris Pro-R 600 with BMP 660cc Big Bore 2011 Model; Polaris Pro-R 600 with BMP 660cc Big Bore 2012 Model; Polaris Pro-R 600 with BMP 660cc Big Bore 2013-UP Models; Ski-Doo E-Tec 800 Stage 1 BOPK; Ski-Doo E-Tec 800 with 860cc Complete Big Bore Kit - High Alt; Ski-Doo E-Tec 800 with 860cc Complete Big Bore Kit - Low Alt ; UTV/ATV Maps. The NEW (ECM Piggyback) Boon-Docker Control Box and the 2013 Pro 858 here is what we are using: NOTE: A Power Commander can be used in place of the Boondocker Fuel Control Box. 2004 Skidoo MXZX 800. JmeiZ. I got it at the end of the season but OHHHHH MAAANNN I wish I had had it all season!!! We frequently load videos on our YouTube Channel (HERE) Please check this channel for the latest Videos showcasing this great kit! GS750 to 850 Big bore kit. wanted to see if anyone has any input or luck with theirs? Looking to get $2000 obo Polaris 02-05 800 Ves 85mm Std Cylinders Snow X Pistons Big Block Rmk Xcsp. Shop Polaris 800 . 10 cc is 1 hp. Post Jan 30, 2014 #1 2014-01-30T03:56. This setup really works well. RK TEk 858 big bore problems, need help. RK TEK SKIDOO MXZ800/ 827 BIG BORE Here is PA resident Jeff Stranges’ RK Tek modified MXZ. Choose your weapons wisely. GS750 to 850 Big bore kit. Basically, install the 858 kit, control box of your choice, and MINOR clutching changes and you are ready to DOMINATE the mountain! 2008-2009 Polaris … VOHK. Yes, that's right, RK Tek draws results from "real world" testing Polaris 15-19 Axys 800 Fix Kit Sp1 Piston Gasket Cylinder 3022828 Rush Pro X Cfi. Post Dec 16, 2012 #11 2012-12-16T23:29. 8ci and has an unreal 5. 00 Arctic Cat Zl600 Zl 600 99 01 02 Zr Efi Cylinder Head Heads Bolts Temp Sensor. 1; 2; … Snowmobiles: Brands, Performance & Modifications. 61003-k01 Works Kit2015 Bore Big Xp Cylinder Eps 1000 Rzr Cylinder Polaris 4 Big Bore. AKSNOWRIDER . 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 is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). Forgot account? well the kit produced a good amount of power, i was overvelded by the power, becouse know of other big bore's that not produce by fare this kind of power. POLARIS > rk tek 858 big bore. RK Tek is located in Preston, Idaho and is owned and operated by Kelsey and Rex (hence RK). AND it … This kit uses your stock cylinders. Arctic Cat Wildcat Trail/Sport BMP Bolt-On Kit or Slip … I have been researching this and I might give it a go. try and find a performnce kit with a guarantee like this !! 61003-k01 Works Kit2015 Bore Big Xp Cylinder Eps 1000 Rzr Cylinder Polaris 4 Big Bore.