BXR .21 5-Port Competition Buggy Engine (Turbo Plug) by RB Products

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Frederick, MD

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This product was added to our catalog on May 17, 2016.

Note: This engine is a Rodage version and has been professionally pre-run by the factory as an AMain Team Engine.   The "Rodage" engines have been upgraded with a higher quality rear bearing for increased performance, and have been pre-run by RB Products to get you on the track faster. 

This is the RB Concepts BXR .21 5-Port Competition Buggy Engine. The BXR (Buggy Xtreme Racing) is the big brother to the BX with similar specifications but greater performance. Suitable for either 1/8 scale buggy or truggy, the RB BXR is an extreme competition race engine! It features a 14.5mm paste balanced turbo crankshaft, turbo plug use, turbo combustion chamber, 14.5mm main ceramic bearing, CNC machined piston, competition conrod, lightweight crankcase and a lightweight cooling head that sits lower on the engine for a lower center of gravity.  



  • 5+2 Ports with MES
  • CNC machined piston
  • 14.5mm Turbo crankshaft, balanced with paste
  • Competition conrod
  • Turbo combustion chamber with integrated O-ring
  • 14.5 Ceramic main bearing
  • Front dust protected rubber sealed bearing
  • Low center of gravity and lightweight cooling head
  • Lightweight but strong crankcase
  • Composite slide carburetor
  • 6, 7 and 8mm venturi restrictors included

Recommended RB Glow Plugs:


Bore: 16.22mm
Stroke: 16.80mm
Crankshaft: 14.5mm
Carburetor: Nylon 9mm
Porting Intake: 5+2 Bypass
Porting Exhaust: 3
Combustion Chamber: Turbo
Piston: CNC machined piston
Rod: Competition conrod
Bearings: 14.5mm ceramic main bearing, front rubber sealed bearing
Weight: 360g
Plug: 01052-6 (one included)

marty korn
Wednesday, Feb 6 2013 (about 4 years ago)
RB Products BXR .21 5-Port Competition Buggy Engine (Turbo Plug)
I have been racing nitro for 15 years and I have used nearly every engine there is over the years. This is one of those engines that just makes you smile. The incredible power of this engine is the first thing that will impress you. The power band and reliability is what what will keep you coming back. The fuel mileage is far better than other engines. And this little gem idles like a dream even at very low idles that you need for competition. Until something better is designed this is what you will see in ALL of my off road cars and trucks!)
Austin Blair
Thursday, Feb 28 2013 (about 4 years ago)
RB Products BXR .21 5-Port Competition Buggy Engine (Turbo Plug)
This is my first year running a RB motor and what else can I say but WOW. This motor has tons of torque, mid and top end and gets good fuel mileage. I'm running this motor in both my truggy and buggy with a RB 2097 pipe.)