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  1. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    weather decided to roll in and it is snowing again so I wont be able to get this tested in the water for a few weeks, but once it warms up a bit I will verify with the muffs base timing at 6* and what it does at 1200 rpm and then 2200 rpm with the timing light.
  2. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Here is the engine plate for reference So suggestions so far is to set base timing mode then adjust to 8* btdc and try from there? Verify total timing at wot is near 34*?
  3. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    will do, thanks for the help on this, Thought it might be a lack of timing, but good to see the spec agree's
  4. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Less Compression would be my guess.
  5. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    Ill give that a try and see how it does. I am sure I can get it figured out I just dont really want to learn another 1 off skill, but I will if I have to. Life is already to busy haha
  6. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    that's what my thought was. So the old advance has a range of 8* to 36*? I am assuming the new delco can't do that as to get a total of 36* of timing I would need to set my base timing at ~12* and that would idle at ~24*? Thoughts on a solution? am I just gonna have to go back to points...
  7. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    I am putting it into base mode then setting timing at 1* btdc, then it jumps to 12-12 at idle when I take it out of base mode, then it goes to 24* as rpms rise. I will try disconnecting the tach. I have not measured fuel pressure, but I would figure I would have good power until the...
  8. M

    Mercruiser 140 Points to Delco EST results in low RPM at WOT

    I've been banging my head on the wall trying to figure out how to solve my low RPM at WOT issue that happened after I replaced the points with a Delco Est ignition. I've got a 84 crestliner with a merc 140, serial A330922, the boat got a replacement 140 to replace the blown up older 370 that...
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