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  1. H

    Attn all VW users

    Thanks SF, Interesting and kinda poo-poo’s my thoughts on what it might have been? I was wondering if it was excess exhaust back pressure with the current Aerovee exhaust as the two banks are separate and there is little or no scavenging going on. Also pipe size could be a little on the small...
  2. H

    Attn all VW users

    Hi all, Now that I have your attention (LOL) may I ask all you VW flyers out there who are using a VW conversion with either exhaust stubs or the 4-into1 exhaust (KR style system as marketed by Great Plains and Revmaster) if you are getting black sooty residue in the inlet ports? Cheers, HH
  3. H

    Is homebuilding going to vanish?

    It won’t die out, but it’s changed. The US is a totally different market to Europe, where much of what’s built here in the UK either comes from the US or Europe. On top of that, here in the UK we did a rather stupid move and left the worlds biggest market, which has made European goods harder to...
  4. H

    VW 2200 4-into 1 exhaust lengths?

    Yes, the primaries dont look very balanced to me either Karmarepair. When I built my Vee in my late teenage years, I remember the rear primaries being routed back through 360 degrees to match the front lengths.... From memory, the pipes were about 51 inches long on it, the figure coming from...
  5. H

    VW 2200 4-into 1 exhaust lengths?

    Aviacs, Cheers for that. Apparently the 4-into-1 that was offered by Revmaster was a reasonably good package that worked well. I am not sure just how long the pipes were, or their diameter, but yes, from my limited experience building a Formula Vee race car many years ago, longer, smaller pipes...
  6. H

    VW 2200 4-into 1 exhaust lengths?

    Optimised for around 3000 RPM.... Cheers, HH
  7. H

    VW 2200 4-into 1 exhaust lengths?

    Hi All, I am looking to build a 4-into-1 exhaust system for my 2200 VW engine. The KR2 seems to have a successful 4-into-1 system designed for it, so does anyone know what length the pipes from ports to collector are? (Revmaster advertised a system for the KR2 a few years back, by they seem to...
  8. H

    Engines….

    Thanks guys. I will do some more homework my end. Personally I’m not a big fan of Rotax, but there other paths out there too. The newer Gen 4 Jabiru seems to have ironed out a lot of bugs and is probably the best value for money engine out there for A/C under 100hp (2200). That might be a path...
  9. H

    Engines….

    Hi All, It’s been a few years of a busy life, dreams that didn’t come true, bringing up family and all that stuff…. Finally I am at that stage of life where things somehow got paid off and those dreams are finally another step closer to reality. A lots happened in the light aircraft world over...
  10. H

    Engines to replace the dominance of Rotax

    PMD, nice explanation...learnt something new.... Ta muchly!
  11. H

    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...
  12. H

    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...
  13. H

    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...
  14. H

    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...
  15. H

    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...
  16. H

    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...
  17. H

    0-200. Just want to know?

    Thanks GH...
  18. H

    0-200. Just want to know?

    OOOpppss posted in wrong forum area I know....still inadvertently related to the fuel system I guess!
  19. H

    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
  20. H

    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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