Overview
2.6 litre ADV I5 in my VW Microbus Syncro ceased due to oil starvation. I am now rebuilding a second hand AFU (2.3l 10V) and
want a modern ECU with knock sensors and lambda control, hence this project site.
- Engine: Audi (VW SA) AFU 2.3 litre I5 with Motronic 1.5.4 ECU.
- Goal of rebuild: I want to re-build the engine with low-end torque in mind and max power around 4500 - 5000 rpm. Normal cruising speed at around 4000 rpm.
Engine Build
- Block (measurements)
- Crank (measurements)
- Pistons (measurements)
- Conrods (measurements)
- Oil Pump
- Head (measurements)
- Porting or not?
- Port matching opinions?
- Camshaft timing for torque @ ~3000 rpm
- Inlet Manifold options? Flowing, smoothing, coatings?
- Exhaust manifold options? Flowing, smoothing, coatings?
- Balancing opinions?
.
*VEMS Info*
Input Sensors
- 60-2 Hall on rear main crank seal.
- 2x Knock sensors.
- 1 x WBO2 (Wide Band Oxygen) sensor.
- 1x EGT (Exhaust Gas Temp).
- Cam Sync - Dissy or Cam sprocket sensor? No fitment points on head though.
- MAF (Mass Air Flow) in place of MAP or both? - PN:
- MAP (Manifold Absolute Pressure) sensor - PN:
- Oil temp - PN:
- Oil pressure - PN:
- IAT (Inlet Air Temp) - PN:
- Coolant Temp - PN:
- Throttle potentiometer Part of throttle unit VAG PN: 1HS 133 064
- A/C Control e.g. A/C demand and output control with idle pre-adjustment?
Outputs
- Ignition:
- Intend using active COP Coils with mounting holes to enable mounting on custom made bracket. Controller option for coils therefore 0 IGBT + 8 logic-level outputs
- Injectors
- Weber/Marelli IWP025 200cc/min. May need to go a bit bigger if engine HW optimizations contribute to efficiency.
- Idle control: Part of throttle unit VAG PN: 1HS 133 064