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Thread: Megajolt conversion

  1. #26
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Oh, and I did confirm that the crank keyway does in fact face 12 0'clock in line with TDC.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.



  2. #27

    2ndGenGuy's Avatar
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    Re: Megajolt conversion

    You need to mount the trigger wheel so that the missing tooth is lined up with the sensor when the engine is at top dead center. You do not line it up with TDC on the pulley unless your sensor is directly above the pulley.

    This guide here is the one to read. It's your bible, trust no other sources:

    https://wiki.autosportlabs.com/MJLJ_...allation_guide

    Basically, set your engine to TDC #1, stick the trigger wheel on it and turn it until the missing tooth is lined up with your sensor.

  3. #28
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    OK. The diagram they have just makes my brain hurt lol.
    They say to set it back 9 teeth, that's the part that throws me off.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  4. #29
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Modified pulley is on without the trigger wheel. Just running it for a few days to see if it throws off engine balance or eats the PS belt. So far so good.
    Off work Monday so I'll get some time to get the wheel lined up and start work on a bracket to mount the sensor.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  5. #30

    2ndGenGuy's Avatar
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    Re: Megajolt conversion

    Oh damnit, I see what you're saying on the manual page. I'm trying to figure out why the trigger wheel is moving back and forth with the sensor lol.

    So yeah, I guess it's what I said, plus turn the wheel 9 teeth lol. I forgot about that part.

  6. #31
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Progress was made (finally)!

    Got the barb fittings put into the runners. Only did 3 or them since 4th was already tapped for brake booster, I'll just run a T off that for that runner. The idea is to run those lines into a manifold to smooth out a signal for the MAP sensor in the MJ unit.

    Was actually impressed the ports are clean. Even the intake was clean. For sure thought it would be dirty considering how rich it runs. That port on the right is #4 which was plug fouling but even then it's clean on the intake side which I think tells me it's not the carb overloading.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  7. #32
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion


    All put back together. Dont mind the red tubing, got to rice it up a bit ya know
    Runs 1000 times better, idle is a bit smoother as well. So my issues are for sure timing related. Ran the distributor advance into the vacuum manifold for the time being until I can get everything else sorted out. Still have to daily the car =P
    Also put the 36mm venturi back in the carbs. Needs some find tuning but seems to have helped it out as well, less popping. Still does some but not nearly as much. Will also pull well past 5.5k rpm. Was dropping off at 5.5k pretty hard before but she'll go further now. Actually have to be careful since I dont have a rev limiter at the moment.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  8. #33
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    On hold until I figure out the transmission issue
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  9. #34
    LX User Fixedit's Avatar
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    Re: Megajolt conversion

    Damn, what’s going on with it?

  10. #35
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Not sure until I pull it. Something finally broke though when I got to work. Wont disengage at all even with engine off.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  11. #36

    Dr_Snooz's Avatar
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    Re: Megajolt conversion

    Keep us posted and good luck.
    Dr_Snooz

    "I like to take hammers, and just break stuff, just break stuff." - Beavis


    1989 Honda Accord LX-i Coupe, 220k miles, MT swap, rear disc swap

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  12. #37
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Clutch fixed (so far), broken engine mount replaced, now maybe I can get back to work on this...
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  13. #38
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Coil, module, and MJ unit are all wired up. Got a day off Monday with no plans and no rain chance. I'm getting a bracket built that day if it kills me.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  14. #39
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    1st draft bracket:


    Yes, my welds are terrible, never said I was that great of a welder. In my defense I had the amp setting wrong and didn't realize it until halfway through building it. I'll grind the bad ones off and redo them for better penetration.
    Can't see it to well but I do have the holes marked off for drilling. Sensor is just sitting there as a reference of how it will go.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

  15. #40
    LXi User InAccordance's Avatar
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    Re: Megajolt conversion

    Bracket was almost just right. Was 2mm too short for the distance needed that the sensor sits against the trigger wheel.
    Mounting bolts were spot on though and the sensor lines up perfectly in line with the wheel, just need to extend where the sensor mounts on the bracket to get it closer to the wheel.

    Used 3/16 steel so it seems like it'll be pretty rigid. I've taken a hammer to it and beat the crap out of it to make sure the welds are solid and nothing broke or bent.
    Bracket fits perfectly just under the PS belt.

    Now to line up the wheel, pull pulley off and weld wheel to it.
    Originally posted by ShiRen:
    Nice car or not, nobody likes losing a race to an old 4 door Honda.

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