ok-n

 
 

$4,500 - TM OK-N, Fully built, dyno tuned and tested. Includes carb, pipe, and engine mount

The new OK-N category is the most exciting thing to happen in American karting in years. The engine is an international FIA class, and represents a move away from spec engine racing and towards a true racing class. This is the direction US karting should be headed; fast, light, powerful engines on sticky tires, not underpowered 100cc air-cooled engines on hard tires. The engine is a direct drive, water cooled 125cc engine that is “open” to building and modification. What this means is engine builders can actually build and tune the engines rather than assemble spec parts, hoping to make a fast spec engine. What this means for the consumer is, if you choose the right builder, you can always get a winning engine. You no longer need to buy multiple engines hoping to get a special one. Every engine can be machined, ported, and tuned to be fast. The price is slightly higher than most TaG engines, but overall cost is much lower because every engine can be built into a winner. Also, the format allows you to use engines from different manufacturers, another move in the right direction. The current state of US karting is that of a monopoly; the 2 dominant entities import the engines, parts, tires, and oil, and mandate their use in the race series they promote. Monopolies never work in the favor of anyone but the monopolist, so giving racers more choice in equipment is a huge positive.

The engine in Senior format makes 35+ hp, and being direct drive (no clutch, no slip) makes for a challenging, visceral racing experience. The engines are beautifully built, and have very stout bottom ends. Main bearings will last a full season (30+ hrs), cranks should get new big end bearings at 15 hrs. Top ends should be done every 6-8 hrs for top performance, similar to any TaG engine.

For 2024, the Junior class of OK-N will be introduced in the US. A simple, restricted exhaust header is all that is needed to change the OK-N to Junior format. It will be ~28hp, and at Junior weight, will be an amazing class to challenge our younger drivers.

Click here to find out about our OK-N build process.

 
 

COMPETITION 2 STROKE CARBURETORS AND ENGINES

Major upgrade to the shop with this proper engine stand, courtesy of Kartune Motorsport in the UK. When it comes to #karting the Brits do it right. Thanks to @aventus_power for the tip. . . #iameusa #x30 #enginetuning #UK #kartracing
Racing finally returned to the Northeast, and what a way to start with clean sweeps in X30 Senior and Junior, and great results all around from all of our drivers. The countless hours at the bench and on the dyno during our downtime certainly paid of
dyno day . . #x30 #iameusa #dyno #dynotune #karting #enginebuilding #skusa
A nice batch of @rotaxkarting work got me thinking back to happier times, like P11 at the 2017 Rotax Worlds in Portugal with @aidan.fox.44. Year 2017 > 2020 might be the understatement of the century. I love the Rotax format and have always enjoye
Here you go...you will not be dissapointed. . . . . #X30doneright #iame #karting #enginebuilding #kartdavid @iameusa @superkartsusa @tillotson_racing @kartdavid
A little known and underreported symptom of the corona virus is #waft. With no racing, all there is to do is get prepared. X30s, KAs, Mini Swifts, and even a Rotax Mini Max MY20 conversion...our drivers will be on fresh, fast engines when racing resu
@superkartsusa #supernats23 P25 of 78 entries Decent result after the 101% track condition rule killed our qualifying and we had to start at the back of every heat. @kartdavid @freemuk @tillotson_racing @tillettracingseats @otkkartusa #expritkar
Very proud to be part of Aidan Lourenco’s first race win @ovrp1 in @rotaxkarting #minimax!! @vivekracing had a challenging day but still put in a great drive to score a nice P3. @thomastraylor_ put in a great effort to score a solid P4 at the
Back @ovrp1 this weekend, our X30 drivers set the pace but had no luck in the races. In @rotaxkarting Mini Max Aidan Lourenco drove from last to third after a dropped chain in the prefinal, while @vivekracing continued his domination of the field. Ke
Good day @ovrp1, proud of all of our drivers. #X30 power was on point with pole in both Jr and Sr, race win in Jr, and only last lap contact preventing P1 in Sr. Debut of the new @kartdavid engine decals was a hit! Special thanks to @brandonjarsocrak
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