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Thread: Hot Singles ! - Pictures
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10-30-2020, 03:43 PM #45768000 RPM
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Lars photo of Cesare Scotti in boat 23, and Renato Molinari's boat 22 at a South Africa race in the winter of 1969 - 1970.
And then in 1971, things are different and beginning the new rival.
Cesare is building is own Scotti Tunnel race boats.
Renato is now a Mercury Factory driver.
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10-30-2020, 06:56 PM #4577The Historic Photo Master
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10-30-2020, 07:30 PM #45788000 RPM
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The "Outboard Marine Corporation" readily admits to spending 1% of it's "gross outboard sales" on it's racing team, and rumours were that Kiekhaefer, maker of Mercury engines, invests as much as $3,000,000 dollars a year to attend Havasu, Parker,Lake Tahoe, Lake Elsinore, Miami, St. Louis, Paris, Bristol, Berlin, etc. for the season!
~~~
That quote above is from the Title Drive link, about the 1969 era of Mercury versus OMC.
I wonder how much money, in USA dollars, is the 1% of OMC gross sales?
And did Mercury spend 3 million dollars a year supporting boat racing?
Title Drive link:
https://www.gosee.tv/boatracing/2010...nal-video.html
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10-30-2020, 09:41 PM #4579The Historic Photo Master
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10-31-2020, 10:26 AM #45805000 RPM
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10-31-2020, 10:43 AM #4581The Historic Photo Master
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10-31-2020, 11:03 AM #45825000 RPM
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...do you know what year the helms were moved to starboard & why?...
As far as starboard helms go I always thought it was to 'counter' the effect of right-hand prop rotation trying to 'lift' the starboard side of the boat that was very noticeable back in the day of smaller boats.
I know by the late 80's when OMC owned Donzi by then the helms were starboard side...so somewhere between 1970 and 1989.
I would say that's not much help at all !!
Maybe if I go back thru some of my 70' and 80's Powerboats but I don't think Donzi were a big advertiser in that time frame with Powerboat.Last edited by peterse90; 10-31-2020 at 11:39 AM.
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10-31-2020, 11:59 AM #45837000 RPM
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10-31-2020, 01:36 PM #45845000 RPM
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A little research time and this is what I have found so far;
1972's were still port side helms (and mostly Volvo outdrives from what I see)
1979's were starboard side helms...now Mercruiser powered.
Fujimo, surely from your photo collection we can narrow this 7 year gap down even further !!
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10-31-2020, 02:40 PM #4585The Historic Photo Master
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...1976, the helms were moved to the starboard side. On the 18 Donzi & up boats, MerCruiser TRS drives, with the standard right hand rotation propellers that they come with, were installed with either small-block or big-block(330) MerCruiser engines. The reason being, on smaller single engine inboard boats, a right-hand rotation propellers torque from an inboard, will slightly lift the starboard side of the boat, from half throttle on up while underway, giving the driver a better ride quality. the portside passengers ride quality suffers a bit, due to that side of the boat breaking the oncoming waves first, while the drivers side is up in the air a bit, enjoying a better ride quality. On both the 16's & 18's, anything with a Volvo sterndrive, which were all left-hand rotation drives(no matter the engine in front of it), had the helm on the port side of the cockpit, for like reasons. Left-hand rotation Volvo drive/engine packages, I believe were rigged in the 16's for a couple extra years than the 18's, if my memory is correct, then the 16 was discontinued being made for quite a while...
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10-31-2020, 02:43 PM #4586The Historic Photo Master
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...all of this info was purely from memory and personal experience, as i owned a few of these when i was younger, as did a few friends. you can probably get more accurate info on the donzi website, which I have never been on...
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10-31-2020, 03:03 PM #4587
This is the answer I expected
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10-31-2020, 06:54 PM #4588The Historic Photo Master
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...the first year of the donzi 16's, in 1964, were all eaton outdrives with 4 cylinders, or small ford solid lifter v-8's...
Last edited by FUJIMO; 10-31-2020 at 06:59 PM.
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10-31-2020, 07:10 PM #45895000 RPM
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A little more research. A lot to do with Jim Wynne.
Jim Wynne was a big part of Donzi in the early years and of course was the pioneer of the Volvo sterndrive and thus all early Donzis had Volvo outdrives that were all left-hand rotation.
About 1976 Donzis started using right-hand rotation MerCruisers and Donzi made both port & starboard helm boats.
Getting back to OUTBOARDS and RACING HISTORY and Willabee's HOT SINGLES I thought I would post a few of my favourite tunnel outboard pictures;
Last edited by peterse90; 10-31-2020 at 08:52 PM.
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11-01-2020, 12:11 PM #4590The Historic Photo Master
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