This is the Mark II Speed Racer diesel engine. The anniversary version has 3 intake and 3 exhaust ports. The Mk 2 has 4 of each. The Speed Racer Mk II runs very smooth and powerful. We only manufactured 10 of them.

Technical data:

Bore                           5.0 mm
Stroke                        5.0 mm
Rpm                          27,100 rpm
Total combustion        0.098 ccm
Weight                      15 gram
Intake                      Front Rotor

Price                         $225.00