Facts about Evinrude/Johnson racing outboards made my OMC

[lars strom]

Cees Van Der Velden in his Velden Racing powered by a Johnson RS V6 3 liter, looper with fuel injection.
1979

[lars strom]

Bob Hering Johnson RS V6 1977
Cross-flow 2.448 litre

[lars strom]

Cees Van Der Velden in his Velden Racing powered by a Johnson RS V6 3 liter, looper with fuel injection.
1979

Lars Strom

Admin-Top contributor

From the BENETEAU boat factory..
#4 Cees Van Der Velden/Tom Posey won the Paris 6 hours 1979 with Beneteau as the main sponsor.
Here he is with the world famous Madame Roux Beneteau..
"The First Lady Of Yachting" she is one tough leader.

[lars strom]

I did race for Beneteau 1979 in Evian, France. That's me in the #56 boat.
I did not get the opportunity to meet Madame Beneteau..

[lars strom]

https://www.beneteau.com/en-us

[lars strom]

The Flyer line


https://www.beneteau.com/en-us/powerboats/flyer

[lars strom]

Greg Jacobsen

Experimental SST-60 at Kankakee. Randy Minch ran an Evinrude and i ran a Johnson. Both with our Karelsen Sport E none capsule boats for an exhibition. Engines were hopped up with cut heads, hand porting and polished crankcases.
They were about 8 MPH faster than the production SST-60 on a capsule boat.

[Mark Poole ModVP]

So on the subject of polished crankcases, maybe I can get a clarification from people who know here. When I was racing 3cyl. V bottoms I built a 49 cu in 75 and hand ported it. While I had the engine apart I polished the inside of the crankcase and I mean it was shiny. Before I put the engine together a couple of people told me that a shiny crankcase in a 2 stroke would be detrimental to the fuel charge as it swirled through the engine. So I went back and bead blasted the gloss off before putting it back together. The engine was a strong runner. But I never did find out who was correct on this subject. Were factory race engines shiny throughout the inside?

[lars strom]

... Were factory race engines shiny throughout the inside?

No..never the ones I raced.

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Cool, the Johnson F1-V8 manual.

[lars strom]

Renato Molinari Stockholm F1-V8 GP 1984.
I guess Renato is checking his Rolex..

[lars strom]

Lars Strom
Back in the early/mid eighties it was a trend by F1 drivers to have a Rolex..Submariner gold was the most popular one.

[WaterZebra]

So on the subject of polished crankcases, maybe I can get a clarification from people who know here. When I was racing 3cyl. V bottoms I built a 49 cu in 75 and hand ported it. While I had the engine apart I polished the inside of the crankcase and I mean it was shiny. Before I put the engine together a couple of people told me that a shiny crankcase in a 2 stroke would be detrimental to the fuel charge as it swirled through the engine. So I went back and bead blasted the gloss off before putting it back together. The engine was a strong runner. But I never did find out who was correct on this subject. Were factory race engines shiny throughout the inside?

Actually a rough surface would be better. It creates a boundary layer just above the crankcase surface. Think about a golf ball for a moment. All those divits molded into its exterior are there for a reason. Same thing for layered feathers on a bird.

[lars strom]

Evinrude F1-V8 manual.

[lars strom]

Arthur Mostert in Stockholm F1-V8 GP 1984.

#2 Velden/B&H/Johnson

[lars strom]

Just a note..The Benson & Hedges three boat team could use cigarette sponsorship in the Stockholm GP 1984.
I could not have tobacco or alcohol sponsorship on my boat because I used a Swedish license from the Swedish Power Boat Federation.