O.S.SPEED R21-M05 Minicars SE Marine Engine

This is the new Minicars Special Edition O.S.SPEED R21-M05 3.5cc marine long-stroke racing engine!

Features:

No carb included – choose your own carburetor (15mm dia neck)

Black anodized water cooling head

DLC coated & balanced crankshaft

9-port cylinder liner

Suitable for competition boats (experience level high):

Hydroplanes

Offshore (with gear deduction)

Endurance (with gear reduction)

Recommended fuel:

Hydroplanes: 40-60% nitro fuel with 8% Klotz Original Techniplate + 8% Klotz Benol oil

Offshore: 25-50% nitro fuel with 8% Klotz Original Techniplate + 8% Klotz Benol oil

Endurance: 16-40% nitro fuel with 8% Klotz Original Techniplate + 8% Klotz Benol oil

Specs:

Displacement: 3.49cc

Bore: 16.08mm

Stroke: 17.2mm

Practical r.p.m. Range: 4.00045.000 (4.00043.000)

Output: 2.76hp @ 35.000r.p.m.

Weight: 260g

Included:

R21M05 Marine Engine

RP7 Glowplug

Shims 0.1

O.S.SPEED decal