ProTek RC Samurai RM.1 Maifield Edition 'Drake-In' .21 Competition Nitro Engine (Broken In by Adam Drake w/21j Carburetor)
About this part
Top Level 1/8 Off-Road Racing Engine
ProTek R/C is Delighted to announce the arrival of the astounding Samurai RM.1 Maifield Edition 3-Port .21 Competition Nitro Engine with increased fuel mileage by nearly 60 seconds. Designed in collaboration with legendary R/C Racer "Ryan Maifield" who is constantly looking to achieve the highest level of performance, speed and outcome on the track to be the pinnacle of off-road 1/8 nitro buggy and truck R/C racing engines!
About the Samurai RM.1
"Drake-In" Engine Break-In
Adam Drake is a legend - so its no surprise that when we decided to offer a pre-run Samurai, we would take advantage of Adam's "EBIS" engine break in services. Now, the same "Oil Bath" break in service trusted by Ryan Maifield, Robert Battle, Ty Tessmann, Spencer Rivkin, Mike Truhe, and many others is now available to you, performed with the knowledge and precision that has made The Drake a legend in RC racing.
Updated Internals
The RM.1 features smoother low end power with higher top speed, a steel backplate insert to reduce friction and wear while increasing RPM and providing a supreme stable idle! A strengthened black-coated crankcase to maximize durability and reliability! Additionally, the Samurai RM.1 utilizes a 3-port type ABC piston and cylinder that are specially designed to provide more torque over the power range!
Updated Profile & Externals
The blue anodized cooling head with laser etched ProTec, Samurai and RM logos features a low CG (Center of Gravity) design providing a boost to stability and giving a more planted feel to the chassis. Another major improvement that the ProTek team wanted to bring to the RM.1 is the case durability that now features an all CNC-machined cast aluminum design to allow racers to push their buggies and tucks to the limit without having to worry about the engine case cracking!
Included Glow Plug & Carburetor
Combined with this magnificent Samurai RM.1 engine are the racer's favorite ultra hot, performance oriented, ProTek P3 turbo glow plug and Samurai RM 21j "High Efficiency" carburetor that has proven to be one of the most reliable and powerful carburetors and glow plugs that pro racers can always depend on since 2014! Just add the ProTek R/C (PTK-2090 - Sold Separately) Tuned Pipe with Manifold combo to experience the highest level of quality and performance ProTek R/C provides for all-time greats like Maifield that separates him from the rest of the competition!
Features:
- Designed in collaboration with Ryan Maifield
- Crafted in Japan by a leading maker of model engines
- Increased fuel mileage by nearly 60 seconds
- Smoother low end power with higher top speed
- Low CG cooling head design
- Steel backplate insert to reduce friction and wear while increasing RPM and providing a supreme stable idle
- High quality ceramic rear ball bearing
- 3-Port Type ABC piston and cylinder enabling more torque over the power range
- Strengthened black-coated crankcase
- Utilizes 21j "High Efficiency" carburetor
Includes:
- (1) Samurai RM.1 Maifield Edition 3-Port .21 Competition Nitro Engine
- (1) 21j Carburetor
- (1) PTK-2542 ProTek R/C P3 Turbo Glow Plug
- (1) 6mm Venturi
- (1) 6.5mm Venturi
- (1) Samurai Storage Wood Box
- (1) Instruction Manual
Needed To Complete:
- (1) PTK-2090 Tuned Pipe w/Manifold
Recommended to Complete:
Specifications:
| Displacement | 0.213cu.in. (3.49cc) |
|---|---|
| Bore | 0.641in (16.27mm) |
| Stroke | 0.661in (16.80mm) |
| Power Output | 2.64HP (2.68PS) @34,000RPM |
| Practical RPM Range | 4,000-42,000RPM |
| Weight | 12.42oz (352g) |
| Recommended Application | 1/8 Off-Road |
Manuals:
User Manual
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews4.8 · 4 reviews
I ordered this engine for 2024 Icebreaker at indy RC world and the engine with the oil bath break in allowed me to get the engine up to race tune after 6-7 tanks and got amazing fuel mileage allowing me to make two stops in a 25 minute main while everyone else ran 3 stops. The engine has a very linear power band where I thought it drove very close to my electric buggy. On top of that the engine was super easy to tune without needing help from other drivers as I’m not the best tuner. For sure a great engine!
So far so good, arrived quickly, extremely tight pinch definitely need to preheat to 200 before starting. Just got it broke in I'll give an update here in a gallon or two but protek is top notch competition grade so im sure it will be all good things
This motor is very good quality, I am not sure about the Drake in process as they do not tell you how many cycles it has gone through, the engine seemed to stop alot at top dead center for being run in. But all in all this is a really good motor and not difficult to tune. A+
The RM.1 is hands down my favorite engine I’ve ever run. Over the last two years, it’s been incredibly reliable and consistent at almost every event I’ve competed in. I’ve been able to get 10-minute run times at Silver State, DNC, and nearly every race I’ve used it in, which honestly says a lot about the quality and durability of this engine. After running so many different setups over the years, the RM.1 is the one engine that’s truly earned my trust. If you’re looking for something competitive, reliable, and proven over time, I can’t recommend it enough. The Drake-In Takes away the tedious process of running the engine in to where you could run it on the track. You can put it in the car and hit the track with a slightly rich tune, in no time you'll be at race tune with your brand new engine. I have used Drake-In for over 8 years and have had 0 issues with longevity and performance in all of my engines.
Four verified or near-verified owner reviews rate this .21 nitro engine highly, with three of four giving 5/5 and one 4/5. Reviewers praise its linear power band, fuel economy, ease of tuning, and reliability over extended use, with one owner reporting 10-minute run times at multiple events. Reviewers agree the engine is competition-grade. The Drake-In break-in process is the main point of divergence: one reviewer found it effective and time-saving, while another was unsure of its cycle count and reported the engine stalling at top dead center during run-in. One review is a brief first impression and does not confirm long-term performance. Pinch tightness requires preheating to about 200 degrees before starting, per one reviewer.
- + Linear power band
- + Strong fuel mileage
- + Easy to tune
- + Reliable and consistent over time
- − Break-in process unclear on cycles
- − Engine stalled at top dead center during run-in
- − Extremely tight pinch requires preheating