872R XP BIG BORE
In house SuperFlow 901 Engine Dyno is how we develop the highest horsepower and most reliable Rotax Engines on the planet!
Your Rotax Performance Expert 1 (507) 281 3545
872R 2007 - 2018
Sponsored Racer Tom Roby at work in 2015 on board his 215 Horsepower TMS 872 Mod, Posting wins against the Turbo powered sleds
OUR NEW EXCLUSIVE 872 PISTON DESIGN RELEASED IN FEBRUARY 2014
*Click on above 872 Piston design page for more information.
This model designed for the Summit line makes over 190 HP using a race fuel blend, the stock exhaust and silencer - recommended.
All work on this kit is done in house, not sourced out as others, as to cyl boring, porting, cyl head designs, dyno testing !
Kit includes following:
Cyl boring, our updated porting design, plating, custom cast coated pistons, piston pins, circlips, needle bearings, base gasket, Modify stock cyl head for desired ratio insert domes, Needle shims included.
Note: Coolant manifold is no longer included with 872 kits.
* At this time we have 30 differant Ratio Domes available for the 872 version, all interchangeable, call for recommendations or special requests no problem.
With customer supplied cyl, head, raves.
$495.00 for piston rebuild kit, 2 pistons, pins, circlips, oem specific base gasket, we keep records on every build for all aspects of build (send back your cyl for us to diamond hone when installing new pistons).
*We have matched our new 872 piston weight and design to make this package the smoothest running BB available which helps boost performance also!
(Rotax missed the dynamic balance on the 800R engine package)
Over 1000 pistons in stock at this time, always available for rebuilds and for 10 plus coming years!!
* 860"s can be updated to this new design with new pistons, updated porting, cyl dome machining.
CALL FOR PRICING!
Rebuilt OEM BRP Crankshafts are available and can be installed in 872 kits at no additional labor charges when above kit is purchased.
We now have available Ceramic Bearings for the 800R- 872R engine for increased performance,
CALL FOR PRICING!