OPTIONS
FX 21 R-03M

Pre Running-in Ceramic Bearing Option

Ceramic
Bearing

R6 CONROD (light) with special HardBlack treated wrist pin

R6 CONROD (light)

FX 21 R-03M
FX 21 R-03M

Adaptation of our best On-Road engine endowed with a special marine cooling head and a particular rotary carburetor ø9mm, the FX 21 R-03M will be your best ally for racing powerboat...

 

 

Technical Data FX 21 R-03M
C. Capacity :3,49 cc
Bore :16,26 mm
Stroke :16,80 mm
Ports : 7 + 2 By pass
Crankshaft :ø 14 mm
Carburetor : ø 9 mm Rotary
Glow Plugs :Turbo
Weight :326 gr

 

 

# FX 21 R-03M

Turbo Glow Plug FX 21 R-03M

Turbo Glow Plug

The insert is a "Turbo" version to give an optimal performance to this engine and it gives greater power. Its length important entering the sleeve allows maximum tight without deformation of the sleeve. Its large insert allows an optimal cooling with the marine cylinder head.

WARNING: It is very important to use only a Novarossi Glow Plug for this engine. Only this Glow Plug is perfectly adapted with this insert. The use of other brands can make the engine instable and damage the insert and the piston sleeve.

ABC Sleeve 7 PortsMicrocasted Piston FX 21 R-03M

7 ports ABC Sleeve

The 7 ports ABC sleeve is endowed with two by-pass for the lubrication of the connecting rod. The piston is CNC machined and drilled to better lubricate the head of connecting rod and cools bottom of the piston. The connecting rod is R7 type with double ring-type brass.
Every piston sleeve set are fine tuned for optimum timing and better gas flow compared to Stock version. Each piston and sleeve manualluy fixed to check optimum tightening and best compression.

Crankshaft FX 21 R-03M

Turbo Crankshaft

The crankshaft is HardBlack coated, a red putty, used for over 20 years on JP Racing engines, is placed in designed hole of the crankshaft to improve gas flow.
Like the piston sleeve set, each shaft is fine tuned for optimum timing and better gas flow compared to Stock version.

WARNING: Do not put the shaft inside solvent or gasoline for cleaning.
This liquides are able to damage the red dough.

Carburetor FX 21 R-03M

Carburetor

The 9mm rotary carburetor with aluminum body is specialy used for this type of marine engine.