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  1. Replies
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    [QUOTE=RaisedByWolves;157169]Boat is currently...

    [QUOTE=RaisedByWolves;157169]Boat is currently under construction so pics wouldn't help much.

    Its your basic 14' aluminum vee with two pedestal seats and a front deck with trolling motor and...
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    Sometimes its tuff to tame them and settling for...

    Sometimes its tuff to tame them and settling for it to smooth down at top speed is the best it will get. Outboard race runabouts are prone to porpoising [not all] but are faster smooth. Seen it many...
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    Props are only as good as test results, different...

    Props are only as good as test results, different per boat or motor Genrelly if you do change a prop it only makes sense to try different settings. The manifolds are not that significant as long as...
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    [QUOTE=RaisedByWolves;157157]Quoting myself here...

    [QUOTE=RaisedByWolves;157157]Quoting myself here to keep things coherent.


    Took the boat out and saw no improvement in speed. I was able to trick it into idling with the primer set on cold start...
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    I also see in the pic that you set this up as a...

    I also see in the pic that you set this up as a 31.8 manifold. [clever]
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    The Mikuni slide carbs will probably perform...

    The Mikuni slide carbs will probably perform better to start with. I made up a manifold to accept a 2 barrel carb from an OMC 85hp. Each barrel the same size as the stock single. Each cylinder draws...
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    Generally above 7200 + or - is about it, a...

    Generally above 7200 + or - is about it, a bearing cage fail is the likely reason. Not that an engine couldn't be built to go more but the weight balance alone in these stock is not extremely...
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    I have had a V block in one hand & a crank case...

    I have had a V block in one hand & a crank case in the other, looking at the possibilities & intend to do it. I know serious gain can be found there from a failed reed experiment. bending the dampers...
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    Good story Steve sounds like fun, not sure I want...

    Good story Steve sounds like fun, not sure I want to know the answer to your Q tho LoL.
  10. Replies
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    Yeah I do, & for whatever it's worth it IS mine...

    Yeah I do, & for whatever it's worth it IS mine to entertain. If you weren't so busy telling others how it is according to you you might find there's many very high caliber folks here but instead you...
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    , Yeah, I just found that out. As far as posting...

    , Yeah, I just found that out. As far as posting tho, I'll post as I wish & leave it to the moderators to notify me or block posts if I'm off base. As far as what can & can't be done depends on who...
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    http://i35.photobucket.com/albums/d151/mes355/DSCN...

    http://i35.photobucket.com/albums/d151/mes355/DSCN0449.jpg
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    http://i35.photobucket.com/albums/d151/mes355/DSCN...

    http://i35.photobucket.com/albums/d151/mes355/DSCN0389.jpg
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    Thats a stock manifold. I removed single carb...

    Thats a stock manifold. I removed single carb studs & shaved the aluminum down till it had a flat surface big enough to accept the 85hp 2 barrel carb. I made an adapter plate with 4 studs to mount...
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    Not true, I've done it. With some experimenting...

    Not true, I've done it. With some experimenting got it to work very well on a 31.8 OMC twin cross flow. It was within 1 mph on top & boosted mid range nicely. It also started better....
  16. If I've learn't anything in building RaT motors &...

    If I've learn't anything in building RaT motors & racing it's that what seems 'should be' often is not. My best guess is you want turbulence on the intake side because it can aid in mixing the fuel &...
  17. I don't know much about specifics but from...

    I don't know much about specifics but from experimental experience I can say trying the reeds with the 85 carbs is your best bet & most likely success. Sure you might have to re-jet the 85's but you...
  18. Thread: Nosecone

    by JohnsonM50
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    I know, I started slow.. paddling lol, then the...

    I know, I started slow.. paddling lol, then the evolution of a lifetime. Once you're into performance boating it all changes. At that point it's wise to have become a seasoned test driver learning to...
  19. Thread: Nosecone

    by JohnsonM50
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    18,923

    Propwalk itself can be dangerous to outboard...

    Propwalk itself can be dangerous to outboard racers especially in the flat bottom types like hydro's & runabouts. With a left rotation prop & a turn fin or chicken wing [oval racers] if the prop...
  20. Thread: Nosecone

    by JohnsonM50
    Replies
    131
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    18,923

    Your English is far better than my Finnish ha ha.

    Your English is far better than my Finnish ha ha.
  21. Thread: Nosecone

    by JohnsonM50
    Replies
    131
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    18,923

    They really do work well, vulnerable only to...

    They really do work well, vulnerable only to clogging or running too slow & slow doesn't even count when you're running a pump. On height, the higher the better to a point, then control & traction...
  22. Thread: Nosecone

    by JohnsonM50
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    hupiveneilija, That's some really nice work...

    hupiveneilija, That's some really nice work you're doing, straight as can be & cleanly feathered. I'm glad you are getting desired results.
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    Not a surprise, all the other allegations known...

    Not a surprise, all the other allegations known or not, Uranium 1 probably the most significant. The possibility that the Bengazi killings were a 'hit' & what about that Iran deal? I'm convinced the...
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    My new favorite:

    Bought a new 500MH hull in '14 & went thru some trials & changes to finally get it to work for me. I'm not a racer with alot of winning under my belt, only 6 going into year 7. Actually a boatload of...
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    Gotta be some difference from the 25SS [?] I've...

    Gotta be some difference from the 25SS [?] I've seen you run on it. That IS a NICE hydro!.. Look for the orange Bezoat at the 'Hop'.. pretty close fun there.
  26. Ive tried all kinds of things & conclude reeds...

    Ive tried all kinds of things & conclude reeds would be a break thru. The flat wall reeds are not going to do it tho,tried single & double comp reeds & there's no significant gain so far. On bending...
  27. Thats good to read. It's a funny endeavor...

    Thats good to read. It's a funny endeavor sometimes, but carbs, props, setups all change things, & there is no way to be sure but run. Not about bigger or more as much as what works best. Good Luck...
  28. With low power to be more the goal than speed the...

    With low power to be more the goal than speed the best way to achieve that is a prop change. 10 is pretty low but 9 to 9-1/2 P might do it. You might not be sacrificing much speed either because alot...
  29. The carbs that are not restricted are close...

    The carbs that are not restricted are close enough that any would work. They are easy enough to change so testing is the best bet. I'd think the 35 carb best for overall performance but the 30 is...
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    Happy Birthday Mr Hill, Hope many more meet you...

    Happy Birthday Mr Hill, Hope many more meet you in good health.
  31. Polyester is strong but brittle while epoxy is...

    Polyester is strong but brittle while epoxy is stronger & more flexible. West is considered one of the better if not the best but is expensive. I do find however the cost varies, a local lumberyard...
  32. Ive used 2 brands, West & System 3, both seem...

    Ive used 2 brands, West & System 3, both seem good but West is thicker. There is an old comparison discussion on HR, would be a good read.
  33. I've done this before, rotted floor, bad glass...

    I've done this before, rotted floor, bad glass work & another that went up on rocks. What I took away from that was manufacturers are sloppy where they know the sun don't shine. The supporting...
  34. Agreed, scraped, ground & free of all the problem...

    Agreed, scraped, ground & free of all the problem junk. The wood, maybe it was still green at manufacture time? A problem of some glass boats is constant wetness & stagnant air under the floor.
  35. Fred, your PM's are full.

    Fred, your PM's are full.
  36. Replies
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    My pal Reeves ended up with a Sorensen CSR. It...

    My pal Reeves ended up with a Sorensen CSR. It was built by an inboarder I hear & is a TANK! I mean that in a good way tho because racing it he did well despite being almost 20 lb's over. The only...
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    That's a beauty, great lines.

    That's a beauty, great lines.
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    Happened to be at a pals when his Brother in law...

    Happened to be at a pals when his Brother in law showed up with 1. There's a virtual reality goggle too that shows you what the drone cam sees. It is programmable to return the start position if you...
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    champ20B, That's the best description of how to...

    champ20B, That's the best description of how to set up a fin location I've read yet. A question about it, if you were going with a fixed driver position [not driving as a kneeler] do you think...
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    I agree but didn't go there because it seemed...

    I agree but didn't go there because it seemed better handling was the goal more than speed. Racers like the '9' are set up with fins for good reason. Maybe it will not only improve the handling but a...
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    If you do use plywood to pad the transom be...

    If you do use plywood to pad the transom be careful to used a no void marine grade & install it with the grain horizontal. If it were to compress under pressure & vibration your clamps would then be...
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    What I can add might be apples to oranges but...

    What I can add might be apples to oranges but alot of race runabouts have a pad that is about 24" to 30" wide on about 36" overall. The same principle of dead flat pad on a flat main bottom, it's...
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    Don't know that the carb is all that makes it,...

    Don't know that the carb is all that makes it, there's often subtle differences that would add up to the 15 rating. check the specs, timing might be different, the intake could be restricted [that's...
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    It seemed in the time that Mercury had an odd...

    It seemed in the time that Mercury had an odd rating system. Of course HP is just a # & only one of the factors in what makes speed. In fun & interest, somewhere in the AOMCI links I read a...
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    That is a good question, somebody's got to know.

    That is a good question, somebody's got to know.
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    It wouldn't vent any better & no increase would...

    It wouldn't vent any better & no increase would be found there. If I remember right it will cause it to have a problem, I'll look as some carbs & get back on.
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    3" pistons in a reasonably light motor.. 50+ is...

    3" pistons in a reasonably light motor.. 50+ is possible with one but about all the stock lower unit can deliver, the R's at that point are about a G over but no problem.
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    There are old records archived but different orgs...

    There are old records archived but different orgs might have different records. I think the lap records for B runabout of the mid '50's to be about 50mph. B runabouts today have a wide variety of...
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    Yes, you can race an Airborne however it would be...

    Yes, you can race an Airborne however it would be hard to make competitive. Its a bit bigger than a B of today & the wide flat bottom drags too much. As long as you ran a light B motor it would...
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    Nothing wrong with building a regular boat w/...

    Nothing wrong with building a regular boat w/ fir, its strong, tuff & flexible enuff.. just the bumpy raised grain & weight make it not ideal to race against Sepele or Okoume. A pal built a Kelly...
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