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Summary of change:
BMW S54, as in the e46 M3, M coupe, and M roadster 3.2 liter Dual VANOS, Individual Throttle Body, 333(US)/338(EU)bhp factory spec. * Cylinder bore: 87 mm * Displacement of 3,246 cc * High pressure Double VANOS continuously variable valve timing system with faster operation at high rpm * Compression 11.5:1 * Finger-type rocker arms for reduced reciprocating mass and friction * One-piece aluminum head casting for lighter weight * Scavenging oil pump to maintain pressure during heavy cornering VEMS ECU Config: BMW S54 dual-VANOS engine: VR, HALL, HALL + 4 * PFET high-side switches for the 4 hydraulic cam-actuator solenoids There are 3 engine speed sensors. One on the crank (VR) and one on each camshaft (Hall). The ECUs need to be ordered with 3 trigger inputs. The ECUs also need to be ordered with 4 PFET high side drivers for the camshaft solenoids since they require switched 12V, not switched GND like traditionally run solenoids.
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