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Fastest boat with 3.5hp?

Old 01-12-2019, 07:52 AM
  #61  
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Twins or Triples

We used to `race for the Spring` in Bermuda. Round the island race with seagull engines. Of course the object was not to go fast but to see how much booze could be carried with you for the up to 6 hour race. (the round Bermuda race class C takes about 45 min if i remember correctly)

Last time i entered that race , we had a barrel of Rum on board the Dinghy and managed to crash into the columns of the causeway. we still managed to finish the race with many watering stops along the way... good times
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Old 01-12-2019, 12:28 PM
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Originally Posted by Fatbill View Post
The engine is already bought and is a M3.5A2 Tohatsu 2-stroke. From what I've heard their 2-stroke 3.5 is bulletproof.
Only if you run it dry before storage. It will run on ethanol great. Run it dry ( till it conks out from fuel starvation)and Do not stor for more than 60 days with fuel in tank. I flip it upside down withiut gas cap to get fuel out. I also use Stabil.

Thanks for thread i am enjoing it immensely.

https://m.youtube.com/results?search....5+hp+outboard
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Old 01-12-2019, 07:12 PM
  #63  
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I see my son Matt jumped in with the MiniMax, which is about as good as you can get for a lightweight planing boat. If you want something with a little more room, I had an 8 foot Optimist prom with the old 3 1/2 horse Johnson that you spun around 180° to go in reverse. I was not a small kid, and I kind of learned by accident that if I sat in the middle seat the boat would plane off. I suspect just about any very simple flat bottom boat built with quarter-inch plywood will plane off with a 3 1/2 on the back and a light enough load far enough forward.
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Old 01-14-2019, 10:04 AM
  #64  
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Well, I went down the MiniMax rabbit hole because of you guys. Im thinking of building a few of these and racing them in the cove at our lake house this summer. Here is my biggest concern, I weigh 240 lbs. Will these things float me?
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Old 01-14-2019, 11:18 AM
  #65  
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You bet. I am right there with you and have run Mimi Maxes with 7.5 and with 10 horse motors with no problem. I forgot to look to see if you were the original poster, but I won't swear it will plane a 240 pounder with 3.5. A Mimi Max can be a ton of fun without a fin or keel. If you're going to put several of them out on the lake near each other, I would suggest a big water ski or surfboard fin about 3 feet forward of the transom
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Old 01-14-2019, 11:33 AM
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Im not the OP and I dont want to Hijack his thread, maybe he is considering doing this though. I am thinking max limit of 10 as I already have a 9.9 not doing anything in my garage. Im thinking no keel, rubbing is racing right?
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Old 01-14-2019, 03:28 PM
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Thanks for all of the replies! Looks like I'll tell him the Solo Skiff is the best bet. No worries about hijacking the thread, all interesting discussion here!
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Old 01-15-2019, 05:01 AM
  #68  
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There is a lot of info on microskiffs.com also
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Old 01-15-2019, 05:34 AM
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My Dad had a 8' John Boat with a 1953 Johnson 3 hp with a 2 bladed prop that easily planed. Lightweight and flat bottom is the key and cheaper than a solo skiff.
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Old 01-18-2019, 08:24 AM
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Old 01-18-2019, 08:31 AM
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Originally Posted by plug tackle View Post
My brother and I had a 12' sears jon boat, 3.5 hp Chrysler air cooled.
With one of us aboard, and sitting in the center it would plane at WOT.
Of course that was over 40 years, and 100 lbs. ago!
The smile on our faces was priceless.
I have a similar experience with a 12' rowboat and a 3 horse Johnson 2-stroke. Had to sit on the center of the boat, tough to reach the tiller handle., but it would get on plane
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