Facts about Evinrude/Johnson racing outboards made my OMC

**lars strom** · 12-08-2017, 07:57 AM

I remember when the Mercury boys was making fun of OMC when the new 6 inch mid section broke for the F1-V8 fuel injections 1985..and Bertil Wik crashed in Minneapolis GP..
Well..Karma is a bitch..

http://www.screamandfly.com/showthre...38#post3004738

**lars strom** · 12-08-2017, 10:10 AM

Originally Posted by powerabout

Wow 3.0 looper?

Not sure how big but it’s a looper.

**lars strom** · 12-08-2017, 04:31 PM

Originally Posted by olboatman

Thats quite a BEAST!!! The plumbing could use a little "cleanin up" lol. How well did it run and was it competative?
Gary

Yes I agree, not sure but Yamaha did a lot of testing.

**powerabout** · 12-09-2017, 03:39 AM

Hows the passage straight to the bore?
6 more inlets?

**lars strom** · 12-09-2017, 01:14 PM

Originally Posted by powerabout

Hows the passage straight to the bore?
6 more inlets?

I don't know to much about this but Ray Anderson do.

**RogerH** · 12-09-2017, 03:14 PM

Originally Posted by lars strom

I don't know to much about this but Ray Anderson do.

I was at this race in Nashville (6/2016) and talked with Ray Briefly about his boat/motor. His wife had asked him what he wanted to do for his birthday.....and his reply was he'd like to get the boat out and run the Nashville race. It won it's first heat race with Tim Seebold in that heat! Not sure what happened on Sunday. Ray drove the boat very well and it performed well in the first heat.

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You can see the Tim's sponson on the outside.

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**lars strom** · 12-09-2017, 05:37 PM

...

**olboatman** · 12-09-2017, 06:45 PM

Wow That yammy must run well to take on the Seebolds as they seem to set the pace at the race's they attend from what I've seen....I had a chance to attend Gulfport last April and enjoyed it so much I'll be there next yr!
Gary

**lars strom** · 12-09-2017, 08:59 PM

One hundred percent Yamaha built V-6 race engines. (Powerhead, mid section and gearcase)
Pictures from Lars Strom's file.

**Mark75H** · 12-10-2017, 10:13 AM

Originally Posted by lars strom

One hundred percent Yamaha built V-6 race engines. (Powerhead, mid section and gearcase)
Pictures from Lars Strom's file.

I never heard that Yamaha built their own gearcases before. What year was this?

**lars strom** · 12-10-2017, 11:16 AM

I got all the info from Ted Zahorski
He was part of the Yamaha team developing racing V-6 powerheads, midsections and gearcases.
Ron Anderson also told me the same thing at an Old Farts Meeting in Naples a few years ago.
Yamaha copied a Merc racing gearcase but run in to some gear problems after a few hours running them.

**lars strom** · 12-10-2017, 11:21 AM

...

**powerabout** · 12-10-2017, 09:16 PM

Japs never throw any tooling out
So they could come back

They seem very tall, propshaft to powerhead?

**lars strom** · 12-11-2017, 08:24 AM

Originally Posted by powerabout

They seem very tall, propshaft to powerhead?

HeeHee maybe Yamaha copied that measurement from OMC's first V6 race engines with the longer V4 mid sections..

**lars strom** · 12-11-2017, 09:48 AM

A Rotary – (Wankel) wins the 2 liter class in Paris 6 hours 1970.

8 November, 2014

Yes, I have totally forgot about this but two friends of mine drove a
V-bottom boat powered with a NSU Rotary (Wankel) to victory in the UIM Class R-3. (Max 2 liter inboards)

Here is a few pictures of Krusenstierna and Zetterstrom´s green Joker boat # 115 powered by a NSU Rotary – (Wankel)
Red arrow.
This boat was used in many races in Sweden over a few years and was doing very good.
Pictures by Wilfried Weiland

http://svera.se/blogg/a-rotary-wankel-wins-the-2-liter-class-in-paris-6-hours-1970/