Facts about Evinrude/Johnson racing outboards made my OMC

[Instigator]

Very cool Lars!

Thanks for that lesson.

Nice to see the underdog win.

I have heard rumors of what the other teams spend on powerheads.

Jonas Andersson is from the small town Frövi, Sweden and are now a three time UIM F1 World Champion. He is very unique because Jonas is the only "self employed" winning driver with a minimum racing budget.
In his little shop in Sweden he preparers his own Merc 2.5 liter V6 and design his own boats with help from the Danish boat builder Molgaard.
To beat the multi million dollar Middle Eastern teams with hired drivers makes his success even greater.
Congratulations Jonas to your third World Title.

[WaterZebra]

How do the staggered intakes work?

[2us70]

That guy is my kind of racer!

[lars strom]

Standing on the bridge between the fresh and salt water.

The first picture is facing the large fresh water Lake Mälaren and the lock in to salt water of Stockholm. Mälaren is around three to four feet above the salty Baltic Sea.
Trying hard to continue with my daily walk here in Stockholm, but its pretty tough to get the motivation winter time. You cant wait to long because the sunset is 14:45 today..!!
On the positive side the sun is out today..
I took my "pixie hat" off for the selfie but put it back on pretty fast.

[lars strom]

Not many people know this but the Swede John Ericsson from Värmland, Sweden invented the propeller.

https://www.tekniskamuseet.se/en/learn-more/swedish-inventors/john-ericsson-propeller/

[powerabout]

How do the staggered intakes work?

To compensate for the different exhaust lengths per cylinder groups

[Rotary John]

To compensate for the different exhaust lengths per cylinder groups

How does that work with 2 exhaust pipes and 3 different intake lengths?

[powerabout]

How does that work with 2 exhaust pipes and 3 different intake lengths?

The path from the bell mouth to the end of the megaphone is what they are compensating for although not quite making up the difference if its thats simple.
Mr Brucato was the man behind this

[WaterZebra]

The path from the bell mouth to the end of the megaphone is what they are compensating for although not quite making up the difference if its thats simple.
Mr Brucato was the man behind this

Brucato sold the spacers as an accessory to his system but I never understood what they were for? Compliments to Andersson for doing the R&D to make them work. Earlier comment about the "little guy"...........some teams have deep pockets and simply write the checks to pay for the results. You can accomplish anything you want if you throw enough money at it.

[powerabout]

Brucato sold the spacers as an accessory to his system but I never understood what they were for? Compliments to Andersson for doing the R&D to make them work. Earlier comment about the "little guy"...........some teams have deep pockets and simply write the checks to pay for the results. You can accomplish anything you want if you throw enough money at it.

What are you referring to there, everyone is using them and have since Merc started selling Brucatos design 25 yrs ago

[lars strom]

Christmas 1954 – A Year To Celebrate


1954 had been a banner year with Johnson building outboards 24-hours a day in three shifts. Two milestone motors were at the heart of this consumer excitement: the revolutionary “quiet” Sea-Horse 5½ hp, which would outsell every other model of outboard made in a single year in industry history to that date, and the new electric start Sea-Horse 25.

[Instigator]

My dads first real pleasure boat was a 18’ plywood cuddy w/twin 25 hp E-Rudes.

I was very young at the time but clearly remember one being pull start (a ‘53) and one being electric start (a ‘54)!

As luck would have it, he only had trouble w/one starting and it was the rope start!

They we’re tough enough to pull (Ive owned a couple) start that if it didn’t start on the first or second pull, you were in trouble!

One weekend my brother (10 yrs older than me) brought one of his high school buddies, who was a body builder.

When that motor didn’t want to start, my brother and dad were excited to turn the body builder loose on the starter rope.

He broke the starter rope on the first pull!

I remember on mine, I kept in perfect tune and told my skiing partner if it didn’t start on the 2nd or 3rd pull you were doing something wrong!

That was at the end of the rope start era and would have people approach me at the ramp to tell me they knew I wished I had an electric start.

Id smile, not say a word, pump the pressure tank a couple more times and start it on the first pull ��

Christmas 1954 – A Year To Celebrate


1954 had been a banner year with Johnson building outboards 24-hours a day in three shifts. Two milestone motors were at the heart of this consumer excitement: the revolutionary “quiet” Sea-Horse 5½ hp, which would outsell every other model of outboard made in a single year in industry history to that date, and the new electric start Sea-Horse 25.

[Muskoka2]

I believe Brendon Powers in Fla is building a bunch of them.


looks to still be 2.5 based but I’m sure with as much billet unbotanium that oil money can buy!

And Alex Hledin up in Hudson Quebec does Rusty Wyatts and I thing Bartek Marszelek's! His brother Peter runs Skater! Alex is a dentist by day and mad 2.5 scientist by nite & on weekends!

[WaterZebra]

And Alex Hledin up in Hudson Quebec does Rusty Wyatts and I thing Bartek Marszelek's! His brother Peter runs Skater! Alex is a dentist by day and mad 2.5 scientist by nite & on weekends!

Alex Hledin cooked up a giant 3 butterfly 2.5 inlet that at WOT literally opened up the entire reed gallery of the engine. It made Brucato's rig look like a coffee straw. It was great for quick reed cage inspection............just mash down on the throttle. I don't know if Hledlin's stuff ever made it on OMC engines but Wayne Taylor's MAD EFI equipment sure did and Velden was a customer.

[Mark Poole ModVP]

Hledin has been at it a long time. I figured he would be retired by now. He did work for Seebold a long time ago.