any more info on this 1/2 vw

Discussion in 'Half VW' started by slociviccoupe, Apr 5, 2011.

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  1. Apr 5, 2011 #1

    slociviccoupe

    slociviccoupe

    slociviccoupe

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    H & I Engineering introduces reduction drive for VW engine.

    would be a lot better than a cut case version. Google doesn't come up with much searching for info.

    if not anyone know some accurate dimensions of a vw case? like main widths in the block. main spacing, distance the cam is from the mains ( center to center), bore stagger, lifter location, spacing, ect almost anything that would aid me in drawing up an engine case.

    with a little work on cad i could come up with a billet case design for a 1/2 vw, almost the same as what is pictured just made out of billet instead of cast. just don't have a type 1 case or anything infront of me to measure from.

    I had this same idea using honda 13hp ohv cylinder heads, on a billet block and cylinders, with a cut in half automotive crankshaft. motor was 90mm bore X 77.4mm stroke. Its drawn and ready to machine till i found out the price for an oem honda ohv cylinder head. found out it wasn't afordable and there are already other engines out there for less. but would be cool to have an aircraft engine you could fix from a lawnmower repair shop and your local honda automotive dealer.

    but any accurate info on the vw would be appreciated. after the case was done some billet half vw heads would be next to draw up. intake in the back with exhaust out the bottom with more cooling fins meant for aircraft use, and dual plugs.

    :ban:
     
  2. Apr 5, 2011 #2

    Hot Wings

    Hot Wings

    Hot Wings

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    In spite of the text on that link the article is about an old stillborn project. As far as I know that is all the further the company got before fading away. The case pictured had all of the disadvantages of the normal 1/2 VW along with one of it's own - weight. That sand cast case weighed more than a full stock VW case. I also suspect that the reduction was based on a set of C3 transmission planetaries and would have proven unreliable in that application.

    The Global engine was another 2 cylinder based on the VW. Information on it is also getting hard to find but there may be some left for the search engines to discover. It too was heavy for the Hp and is no longer available.

    Nice ideas, just not viable.
     
  3. Apr 14, 2011 #3

    nheistand

    nheistand

    nheistand

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    The best model for your 1/2 VW engine case would be the Mosler 1/2 VW case. I believe it is cast aluminum. It has all of the internal dimensions of the original VW engine case except the crank and cam are shortened and there are only two cylinders. You can see it at
    - Mosler/TEC/Team-38 Engine Parts $300. I plan to build a 1/2 VW engine using this case and parts from Great Plains Aircraft and Hummel Engines. The big difference between a good 1/2 VW engine and a similar industrial V-Twin with 35hp or so is that the 1/2 VW engine can be built with performance parts like Mahle pistons, Scat cranshaft, Scat rods, etc. I would love to build one of these for someone else as well as for myself (for a fee :)).
     
  4. Apr 14, 2011 #4

    slociviccoupe

    slociviccoupe

    slociviccoupe

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    wow, didn't even know of mosler. only thing i see that isn't soo good is the split port scat heads, no fins around the exhaust ports. they have been known to run hot on land based vehicles.
     

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