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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
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Not sure how big but it’s a looper.Quote:
Originally Posted by powerabout
Yes I agree, not sure but Yamaha did a lot of testing.Quote:
Originally Posted by olboatman
Hows the passage straight to the bore?
6 more inlets?
I don't know to much about this but Ray Anderson do.Quote:
Originally Posted by powerabout
http://www.screamandfly.com/attachme...3&d=1512843275
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.Quote:
Originally Posted by lars strom
Attachment 394181 You can see the Tim's sponson on the outside.
Attachment 394182
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
One hundred percent Yamaha built V-6 race engines. (Powerhead, mid section and gearcase)
Pictures from Lars Strom's file.
http://www.screamandfly.com/attachme...9&d=1512871056
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Quote:
Originally Posted by lars strom
I never heard that Yamaha built their own gearcases before. What year was this?
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.
http://www.screamandfly.com/attachme...7&d=1512922657
Japs never throw any tooling out
So they could come back
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..:)Quote:
Originally Posted by powerabout
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/
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