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Thread: VW Mid Engine Trike

  1. #11
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    1)

    No. Do not groove rod at all ever. The only sticker with internal grooved mains was the early 1500 with the straight drilled crank. The other stock cranks are cross drilled with external grooved bearings.

    2)

    I suppose you could make a way to use stock end castings. You will have to make all the other pieces. Will not be easy to tune....but can be done....I have done worse. I have run a mikuni on a lawnmower engine (racing go kart)

    3)

    A correct vacuum advance makes a smoother street engine. The 009 and its clones was originally an industrial unit. Crank up and run 3750 all the time. No need for the dynamics of road driving. The 009 works fair at best and is the only game if you do not have the ability/provisions for a vac advance. So a vac advance would have roughly the same idle timing and full speed timing so is not measurable increase. The difference is how the timing comes in and behaves. A 009 usually has a big flat spot coming up until rpm gets up there.

    4)

    Not that I know of.

    I have bought several j tubes and cut them.

  2. #12
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    Default VW trike mid-engine kit

    BadAssTrikes has a front-mounted vw frame & pieces like adapter plates, jackshafts, exhaust, etc.

  3. #13
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    Bad ass trikes went out business quite a long time ago.

    He could not sell enough and gave up and went back to a regular job. He is hard to get in touch with, works a lot, busy with family, not worried about cycles......

    If

    You can get him he might have a left over piece or two still laying about.

    I know the person who said they got his last frame.

    Also know someone who said they got his last book.

    If you need info about how to make the parts then look me up. I do not make stuff to sell. But I will share any knowledge I have collected.

  4. #14
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    Default Information

    Thank you for the responses. Once I stop coughing, barfing, and sitting on the porcelain throne, I will be working on rebuilding the engine. Then mocking up a frame. Even though it isn't mine, I'm getting a bit excited about building a bike from the ground up.

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    Default thanks

    Thanks for setting me straight. I'm a newbie to this forum. I've been a member of the corvair center forum for a few years but some of the guys get offended with me for talking about corvair powered trikes.

    I heard about BadAssTrikes a few years ago & thought I'd throw it over to this thread. I just looked them up, looks like Mark Vandamme started business offically in '07 & had trouble by '11. To bad he had to get out.

    40 years ago I built a 1300vw tube framed roll cage dune buggy for my high school shop project. It was a fun build, made lots of mistakes but learned to fab & TIG weld. Rebuilt the engine from the ground up. It was a blast to drive, made lots of good memories with my friends riding along. Back then a guy up the street built a front engine corvair trike. He used to ride past our house, it was a great looking ride. The past few years I've been collecting pieces for a trike build, a '69 110hp motor, triple trees, etc.

    I'll post more when I get the build going.

    The forum looks great! Mike

  6. #16
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    Quote Originally Posted by corvairtrikeguy View Post
    Thanks for setting me straight. I'm a newbie to this forum. I've been a member of the corvair center forum for a few years but some of the guys get offended with me for talking about corvair powered trikes.

    I heard about BadAssTrikes a few years ago & thought I'd throw it over to this thread. I just looked them up, looks like Mark Vandamme started business offically in '07 & had trouble by '11. To bad he had to get out.

    40 years ago I built a 1300vw tube framed roll cage dune buggy for my high school shop project. It was a fun build, made lots of mistakes but learned to fab & TIG weld. Rebuilt the engine from the ground up. It was a blast to drive, made lots of good memories with my friends riding along. Back then a guy up the street built a front engine corvair trike. He used to ride past our house, it was a great looking ride. The past few years I've been collecting pieces for a trike build, a '69 110hp motor, triple trees, etc.

    I'll post more when I get the build going.

    The forum looks great! Mike
    looking forward to following your build.
    Stallion #406 // 2013 Tri-Glide

  7. #17
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    corvairtrikeguy.......welcome.....like gorilla says , looking forward to your build! always liked the sound of vw's and corvairs. Always wondered if Ralph actually killed the corvair, or was it too different for the american car buyer?? still remember looking at the new 1966 corvair coupe, wanted it...never got it! oh well.....

  8. #18
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    Default Engine Torn Down

    Hhmmmmm, not sure who's thread this is now, but I'll keep posting on it anyway. I have the engine torn down to the block and to me, everything looks great. Smooth cylinder walls are a relief but don't know what the bearing look like yet. Still need to break the flywheel nut loose, but trying to shake this flu and stuck home. I'll be replacing the head studs due to one being broken short and one being hit with a grinder. One spark plug is larger in diameter than the other three. I bet it had a helicoil in it which failed and they screwed a spark plug that fit the threads. I think I'll tap them all out to accept the larger plug. The owner saw the engine torn down and I think he is concerned!!

    VW Engine.jpg

  9. #19
    300+ Posts LarryA's Avatar
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    Default reply

    maybe the heli-coil unscrewed with the plug? lol.....here's to your friend, hoping you don't lose interest in the project! Some folks get nervous when the see their stuff scattered all over the floor! Good luck with the project, and the flu! larry

  10. #20
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    That odd spark plug......somebody had problems.

    Avery good reason to inspect those head for cracks. Especially from the spark plug hole.

    Cylinder/piston kits are cheap enough that they are not a worry.

    Heads and/or head machining can be pricey.

    Internal case machine work such as line boring can be a bit expensive if you do not have a vw shop in town and have to ship the case out.

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