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'''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. VAG PN: '''<part number>''' <Triggerlog file and images> * 2x '''Knock''' sensors. Bosch PN: '''0 261 231 006''' * 1 x '''WBO2''' (Wide Band Oxygen) '''Bosch LSU4.9''' * 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: * '''MAT''' (Manifold Absolute Temp[?] sensor - PN: '''<part number>''' * '''Oil temp''' - PN: '''<part number>''' * '''Oil pressure''' - PN: '''<part number>''' * '''Coolant Temp''' - PN: '''<part number>''' * '''TPS''' (Throttle Pisition Sensor) - Part of throttle unit VAG PN: '''1HS 133 064''' . ---- '''Other Input signals''' ---- * A/C Control e.g. A/C demand and output control with idle pre-adjustment? Is this a standard VEMS feature? . ---- '''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''' PN: '''<part number>''' . * '''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''' . --- '''Controller configuration''' --- <file> .
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