This is another company that converts Subaru car engines for use in aviation.

-It is the Sub4 Aeromotive Ltd. of Hamilton, New Zealand.

-It basically uses the EA-81 to obtain various versions as we will see.

-The EA-81 displaces 1800 cc and uses a dual carburetor delivering 115 HP. but with an electronic fuel injection system, it raises to 125 HP.

“Sub4, 115 and 125 HP”

“Installation on a Dakota Hawk”

-One quality of the presented mechanical reduction gear is that it can be installed in a upright or inverted position.

-We show two examples of the Sub4 115 HP engine with both arrangements.

“Sub4, two reduction gear versions”

-Here is an enlarged view of the 115 HP Sub4, with dual carburetor.

“Sub4, 115 HP”

-Sub4 has also adapted the EJ, EG and EZ series using its reduction gears.

-Precisely the new reduction gear model is the one offered below, with capacity for engines up to 300 HP at 6,000 maximum rpm.

“New reduction gear on Subaru EJ”