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  1. H

    Engines to replace the dominance of Rotax

    PMD, nice explanation...learnt something new.... Ta muchly!
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    Jabiru, how do they do it?

    Just a correction here. British tax laws never ever brought us 3-wheelers.....up until just a few years ago, you could drive a 3-wheel car in the UK on a motorcycle licence, that's what lead to the god-awful Reliant and the brilliant little Moggy....(there used to be a lot of people who held...
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    Jabiru, how do they do it?

    In that case I stand corrected and will happily stand up and say in that case I don't understand the basic fundamentals of larger stroke engines and conversely am quite happily make any apologies where needed re-'chasing myths' to Cheapracer. I want to learn here, not talk about the merits of...
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    Jabiru, how do they do it?

    To be honest Tim, personally I don't care who had the worst or best product. Fact of the matter is, the Germans build some very good cars and have built some rubbish as well. Same can be said for America, same for Japan. We had our fair share of howlers too. The British car industry has largely...
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    Jabiru, how do they do it?

    They were what they were in their day. I hardly think that either the Aussie or American car market was so vastly superior, given the number that we were exporting to both countries in the 50's and 60's. Before you start preaching how crap the cars were (or Lucas, which were not manufacturers of...
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    Jabiru, how do they do it?

    The only thing I would argue with you over, the unions did more to kill off the old Brit car industry than taxes ever did. The new one is doing rather well under the present difficult circumstances, far better than the OZ one, if your closures are anything to go by.... Cheers Ross, I think I...
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    Jabiru, how do they do it?

    Hi All, Still looking into different engines for my future project. Was intrigued to look at Jabiru's figures for their engines. They are running relatively short strokes on big bores, yet claiming and getting direct drive RPM'S of the mid 2000's. I know you cant beat sheer capacity through...
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    0-200. Just want to know?

    OOOpppss posted in wrong forum area I know....still inadvertently related to the fuel system I guess!
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    0-200. Just want to know?

    Does anyone know what con-rod length an 0-200 uses for standard? I am curious to know what rod-ratio the engine uses. Hap
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    Scimitar props on VW's???

    Yes it does make sense Fred. From what I've read, the blade tries to twist or bend forward at low air speeds, thereby reducing the pitch. I guess the more curve, the more the effect. You have to be careful however as very strong centrifugal forces acting on blades can lead to failure....not...
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    Scimitar props on VW's???

    This radical Scimitar prop has always intrigued me. Not easy to construct, but often wondered if it would help improve some of the inherent direct-drive VW problems by allowing for a longer effective blade for a smaller blade diameter, therefore lower corresponding tip speed? Maybe one way of...
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    Question for the propeller experts among us

    This Scimitar prop has always intrigued me. Not easy to construct, but often wondered if it would help improve some of the inherent direct-drive VW problems by allowing for a longer effective blade for a smaller blade diameter, therefore lower corresponding tip speed? Maybe one way of getting...
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    Yet another VW power argument. Again.

    Interesting thread. More interesting is the reactions from a lot of readers who are all hooked up on how much HP VW’s can produce. I have some experience with the humble VW, but it isn’t in the same league as some of you out there. What is clear from my experience that there are limitations to...
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    Small engines - new

    When people talk about engines, everyone focusses on one thing only, HP! Interestingly at first glance, surly the Aerovee chart is a bit of misnomer? It should really read, Torque/RPM vs HP as HP is the result of the two, not a function. Also the unit used for Torque is wrong as it is...
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