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  1. Jay Dub

    What could be done to reinvent the Affordaplane to a more homogeneous project?

    I remember looking into the clones and I found a video of an n3 with a clone 420 iirc taking off on a beach. It was mostly tan colored. I tried looking for it but I can't locate it now.
  2. Jay Dub

    premix oil

    After I posted here a bit up the page, I did a lot more reading and learning. A lot of the older 2 cycle oils were fairly similar. As I read and studied the Stihl ultra oil isn't rated that highly as it was made for double duty in both their 2 stroke and "4 mix" engines. The most impressive 2...
  3. Jay Dub

    Mountain plane

    I used to fly in the Andes in Bolivia. A few strips we serviced were around 14,500. Most all of our mountain strips were uphill/downhill and many of them were between 3000-5000' long and Gravel. Some of the strips you had to takeoff downhill even with 20 knots of wind at the tail. It was always...
  4. Jay Dub

    premix oil

    I know this thread is 3 years old but I want to resurrect it. I have a freshly rebuilt 447 I hope to put on a Kolb Firestar I'm building so oil is on my mind. Back in the early 90's I had a CGS Hawk with a 447 on it that I mostly used the Pennzoil "Air Cooled" oil. It coked up the pistons and...
  5. Jay Dub

    Bing 54 jet size adjustments for altitude

    I found on leading edge airfoils website a pdf for tuning the Bings and it says "To adjust the carburetor, in general, a different main jet size is sufficient. Only in very particular cases does a different needle jet and/or different idle jet have to be installed." This is good as I only need...
  6. Jay Dub

    Bing 54 jet size adjustments for altitude

    I have plenty of experience dialing in motorcycle (2 & 4 cycle) and chainsaw carbs. I have a 447 Rotax with the single factory Bing 54 carb that I just put new seals and gaskets in that I will be installing on a Kolb Firestar II. The Bing is stock with the 165 main. I live at 4600'msl so I...
  7. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine conversation thread

    That's fine. Some of us aren't participants of Facebook for many various reasons. Me included and I have no plans to join fakebook. I know I'm not alone. I wish people that started groups on FB would realize there are many of us that won't be a part because of how those platforms are run and...
  8. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine conversation thread

    I watched the video. Bob's such a nice guy, it was good to see him on video. I'm already starting a Kolb Firestar but I think you are right, Bob's little plane might be a good platform for one of the Vanguards. Jay
  9. Jay Dub

    Briggs & Stratton 627cc engine info/no theory, just the facts!

    HI Erkki67, Bautek has gone out of business recently leaving many people without the engines they paid for. There are a lot of very unhappy "former" customers.
  10. Jay Dub

    Briggs & Stratton 627cc engine info/no theory, just the facts!

    Please keep this just the facts thread to just the facts on what is working on the 627 Vanguard, not Valley Engineering, etc. I started the 627 conversation thread here for conversations and ideas. Thanks, Jay
  11. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine conversation thread

    TLAR, I'm a big Bob Barrows fan. I almost built the original Bearhawk several times and still have plans 767. That 4 place is quite the performer. As a former bush pilot I really liked what the "Helio Courier expert" with JAARS had to say after flying one with the Lyc 540 in it. His words...
  12. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine info/no theory, just the facts!

    Keeping with just the facts, no, I think these were just peak numbers, not sustained. Another Youtuber is Devin Daniels testing several of the MHP engines on video. In this video he is using the 75hp big bore with a single mikuni carb (that was in the dyno video I got the stats from) going 37...
  13. Jay Dub

    Briggs & Stratton 627cc engine info/no theory, just the facts!

    I just started a new thread for conversations on the 627cc Vanguard so we can throw out ideas there and not clutter this thread with drivel.
  14. Jay Dub

    Briggs & Stratton 627cc engine conversation thread

    In order to try to keep the "just the facts" threads on the Briggs Vanguard 627cc to just the facts, I wanted to make a conversation thread for people to make their comments and throw their ideas out. As I stated in the just the facts thread, I think the 627 won't produce the power I need as...
  15. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine info/no theory, just the facts!

    I just started a new thread for conversations on the 993 Vanguard so we can throw out ideas there and not clutter this thread with drivel.
  16. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine conversation thread

    In order to try to keep the "just the facts" thread on the Briggs Vanguard 993cc thread to just the facts, I wanted to make a conversation thread for people to make their comments and throw their ideas out. After seeing what Midwest Horsepower did on the dyno with the 993 I'm thinking I would...
  17. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine info/no theory, just the facts!

    I appreciate the interest in the topic but I see this is drifting from "just the facts of what is working." I really want this to be a thread of just what we know is working, not ideas nor conjecture. There is already a thread with 72 pages or so with everyone and their brother's ideas on...
  18. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine info/no theory, just the facts!

    Trying to keep with the facts, I'm going to share some of what I have learned on this engine. This is a side note as this doesn't come from flying examples but good examples none-the-less. Interestingly, looking at the mud-motor guys that use these engines hard, running full loads for long...
  19. Jay Dub

    Briggs & Stratton 993cc "Big Block" engine info/no theory, just the facts!

    This is very similar to the thread I started on the Briggs Vanguard 627cc engine: We call this "Experimental Aviation" for a reason. If you are a theory person or a "thrower of wet blankets armchair engineer", please don't reply to this thread. We only want to know what does or does not work by...
  20. Jay Dub

    Briggs & Stratton 627cc engine info/no theory, just the facts!

    For the most part it appears most everyone is doing mostly the same such as: Remove governor Shim valve springs (in hi rev kit) Change valve keepers (in hi rev kit) run a redrive (1.8:1 down to 2.29:1) because running higher engine RPM (4300-4500) needs a different carb (993 carb, single or...
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