Thread: Building A looper Beast

  1. #491
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    Way to go, Dick! It will be interesting to learn what makes the difference.

    My guess is local law enforcement may pay you a visit about the time you get the 5th carb dialed in........ LOL!

    Best of luck,

    Tim

  2. #492
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    If they wait that long!

    Jeff
    "We live at the bottom of an ocean of air." - General Marvage Slatington

  3. #493
    Team Member R Austin's Avatar
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    Quote Originally Posted by BJuby View Post
    Dick, looking great. Have a question. I see you have multiple steel screen filters on the same line. Can you explain the reasoning for this?
    A closer look will show that the tees in the vertical fuel log are rotated forward with the filters unhooked. The filters were looped together just to stop any leakage. The correct question would have been what are all the red wires hooked to the switch box.

  4. #494
    Team Member R Austin's Avatar
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    Quote Originally Posted by J-Dub View Post
    That is a very nice piece of work there! What is the reduction/tooth count at the dyno pump? I have the same Land & Sea dyno with a load cell added as well, but I have adapted a 70HP 2:1 OMC service unit to bring the pump speed down. I know that the lower unit will be my weak link. When I saw the the simple belt and pulley system, I thought that was brilliant! That clearly engages the K.I.S.S. Principle. I already had mine pop out of gear at full power with a D Mod on it... Fortunately, nothing blew up!

    Thanks for sharing!
    J-Dub
    The ratio on the drive is 3 to 1. I know that the pump is made for a normal operating conditions of 2500 RPM at 2500 PSI. I directed by concerns on the speed of the pump and the restrictions of maintaining a solid flow of oil without cavitation to the pump. However I may have gone to far the other way as the trade off on volume is pressure. The 3 to 1 will now translate into high pressure. Hopefully that side of the system can better stand that overload. Time will tell. Again I just want a load that will let tune close enough for final real life on the water tuning. If it can stand it then that will be even better.

  5. #495
    Team Member R Austin's Avatar
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    This is more of an upload test, however I will share with you what I have done while waiting for some good weather.

    Just for curiosity sake, I pulled a coil to check the resistance of the primary and secondary circuits. Sometimes you wonder what were you thinking. Just over thinking I guess. Anyway my findings were that the primary checked out fine. Checking the secondary, coil tower to ground, ugh where is the ground. Its not the wire coming out of the rubber boot? I know that, that's to take a cracked coil short to ground. OK, the primary and secondary share in internal connection to the same coil (-) terminal.

    Having checked the specs on the coil and the voltages of the primary circuits, I went looking for a lost spark 2 cylinder coil. I came up with a coil from a 2 cylinder motorcycle. A good size and specs fell with the range of the ADI system. I know that with a lost spark system, the lost side fires at a lower voltage because of no compression. Given the numbers on the secondary output of the coil, I think it will work fine, both at the same state of compression. I know that with a test board on the coil, both leads will free air fire a 1/2 inch gap. So I made the conversion.

    I know that the system I had installed will not fire both plugs when primaries are wire parallel. I know that it fired both plugs a good 1/2 air gap wired in series even with the first coil secondary finding ground thru the second coil primary. I have ask the question how does this impact the total system operation when running under load and not been able to get an answer. Thought there might be some EE out there that could sort it out.

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  6. #496
    Team Member GHMiller's Avatar
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    Very clean and sanitary installation. Looks great!
    Gardner Miller
    Lone Star Outboard Racing Association

    "Water is for racing. Asphalt is for the parking lot."
    Remember....Freedom isn't...."Free".......

  7. #497
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    I dont know why, but something tells me its going to be a bit loud !!!

  8. #498
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    happy new year
    hows the dyno test coming?
    and the EFI?

  9. #499
    DaBull Dabull1919's Avatar
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    I`ve been wondering the same. I`ve been amazed with this engine from the start.

  10. #500
    Team Member R Austin's Avatar
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    Guess it is time to bring this thread up to date.
    Hard time trying to remember what was lost when the thread was lost.
    Will try to recreate what l can remember and just go forward.
    Thanks ClayT thanked for this post
    Likes ClayT liked this post

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