MOTORI 4 STROKE 120

DECO MOTOR

The Deco motor has been around since World War II and has been powering quarter midgets almost as long. It's compact size and robust construction makes it a good race engine. Originally this engine produced about 3 hp at 2500 rpm for powering pumps and generators. This antique utility engine has evolved into the racing engine powering the most exciting cars in quarter midget racing.

QMA has 4 Deco engine racing classes:


Super Stock: 121 cc max. Cam, carburetor, ports, manifold, timing and minimum flywheel weight specified by racing rules. This class started out as a box stock class, but over the years production changes, lack of original parts and the desire to go faster made it into a "super stock" class. In this state of tune the engine produces over 5 hp at 6000 rpm.
Modified: 121cc max. Specifications are the same as the Super Stock class except the timing; carburetor and manifold can be changed. This allows the engine to really breathe. Modified engines typically make over 7 hp at 8000 rpm.
B-Modified: 124cc max. Restrictions on the engine block are removed from the modified specifications allowing high flow ports. The "B" engine really delivers a sting and an exciting ride for your driver, producing more than 9 hp at 9000 rpm. Because of the high performance level the QMA only allows the older and more experienced drivers to run the B-modified motor.