Our current engine setup is as follows:
- 150cc briggs block, piston, crank, conrod
- custom head, cross flow valves driven by stock push rod cams
- custom port injection mount using Siemens Deka IV (22cc/min) control by hc08 megasquirt using speed-density
- stock butterfly valve tb
- no muffler, straight exhaust
- spark control by MSD small engine
- trigger is a hall effect sensor with a single magnet
- O2 sensor installed but never used
The 2008 engine is in development so these aren't set in stone:
- 50-70cc
- Sleeved 150cc briggs block
- Honda head
- port injection
- electronic throttle body
- fuel by VEMS using tps and O2 feedback
- spark by VEMS using at least 4-1 trigger wheel