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Thread: Dual Sync distributor setup cam signal.

  1. #1

    Default Dual Sync distributor setup cam signal.

    I'm using a Dual Sync distributor for a cam signal on a SBF. I'm using a Holley crank sensor 554-118 with an MSD wheel setup on falling edge at 50°. Should the falling edge of the cam signal be at 195°? With the ECU set at 50°.

  2. #2
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    Yes, Digital Falling at 195° BTDC on compression stroke of #1 cylinder: http://forums.holley.com/showthread....m-Sensor-Setup (Crank & Cam Sensor Setup)

    Originally Posted by Danny Cabral
    Ignition Timing Cylinder Sequence Verification
    Ensure the Firing Order is entered correctly in Ignition Parameters (System ICF).
    Before the initial start, disconnect the fuel injector harness and verify
    at least, the first four cylinders in the firing order using a timing light.
    If your cylinders are firing in 90° intervals BUT in the wrong sequence,
    the coil harness is connected wrong (at the ECU or at the coil packs).
    Hopefully you have a fully degreed balancer or at least markings every 90°:
    1st cylinder, in firing order, should fire at 0° (or 15° - add whatever your cranking timing is)
    2nd cylinder, in firing order, should fire at 270° (or 285° - cranking timing added)
    3rd cylinder, in firing order, should fire at 180° (or 195° - cranking timing added)
    4th cylinder, in firing order, should fire at 90° (or 105° - cranking timing added)
    5th cylinder, in firing order, should fire at 0° (or 15° - cranking timing added)
    6th cylinder, in firing order, should fire at 270° (or 285° - cranking timing added)
    7th cylinder, in firing order, should fire at 180° (or 195° - cranking timing added)
    8th cylinder, in firing order, should fire at 90° (or 105° - cranking timing added)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

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