Biland SA 250 4 Stroke Motor

Rear View	Left Side View	Right Side View	Mounted Front View	Mounted Rear View

The CIK has been under pressure to move away from 2 strokes for exhaust emission purposes and has been investigating several alternatives.  The Biland motor was originally developed for a different application but is well suited for a kart.  Usable power range is from 7000-12000 RPM range with 28 peak HP in the 9000 RPM range.  Power is much flatter then a 2 stroke with over twice the width of power band.  That translates to  strong low end torque coming out of turns, with good top end power.  Imagine how a Rotax with a much wider power band would drive.  That's what makes the Biland particularly interesting.

It does weigh in a little more then a Rotax, and cost more initially.  It has a rated time between rebuilds of 300 hours.  It can run on pump gas.

At the Rock Island Grand Prix, the Biland powered karts were turning laps about 4/10s of a second under the Rotaxes in comparable hands.  One of the set up keys with the Biland is to gear it so the rear tires last.  It has just enough torque in the low end to make tire conservation a little more crucial in the set up. 

The Biland is a little on the heavy side, but at 33 lbs it is still less then a Honda CR125 by about 6 lbs.  It might be a good alternative for the 200 lb + club racer who wants to run a Rotax, but is 25 lbs over weight.

Like the Rotax Max, the Biland also has a world cup type challenge in the works.