Jonas Olhssons BMW 1602
News
2007-08-03
Engine has been started, we had to add the R30 pull-up resistor because it was not mounted (I assembled and built this system myself) but after that the trigger worked. MAP is steady, about 85 kPa @ 1500 rpm idle. As expected this engine needs lambda 0.85 (or at least below 0.90) to idle properly. This engine could _really_ use mappable fuel injection angle to get a reasonable idle and low load quality, or at least development should be pushed towards Alpha-N with pressure compensation.
The engine was only warmed up today and an oil pressure problem appeared that must be resolved before any more is learned.
Engine specification
- BMW M10, 2.0 litre crank, stock rods and Mahle forged pistons
- Schrick cam shaft (300+ degrees duration)
- Individual Throttle Bodies
- Ford Motorsport 1600 cc fuel injectors, 5 Ohm impedance
- Run in saturated mode with no power resistors and a 30 V TS diode on the flyback wire
- Stock distributor with heavy duty coil and MSD 6A CDI box
- Honeywell GT1 Hall-sensor on crank (and eventually cam)