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James Perry built 2.0Quote:
Originally Posted by FUJIMO
two four lap races on Sat and Sun
Back in the day I tried to convince Merc Marketing to look at doing a 30 hp version of the 50, kinda like the MK 30 MK 55 scenario. Would have been the most gas sippin' strongest running 30 out there, and could have got rid of the 2 cylinder 402 slug. "Oh no we can't do that it would cost so much more with the extra rods/pistons." My counter was we would produce more rods/pistons/blocks/ etc. and the piece part cost would be less, less changeover because you could run them down one line, no more 402 hassles - smootest running 30, power trim option, etc. Needless to say never happend.Quote:
Originally Posted by 2us70
By 1974 the 500s had a lower unit that allowed them to run the stainless props from the 49in 3cyl motors. These bigger slower turning props worked very well in the reclassified D class. The only problems these motors had by then were fuel pressure and delivery with the Tillotson carbs and timing belt slop on the Thunderbolt ignition drive. Further development changed the carbs and the ignition to a flywheel system but I never got a chance to try one of those motorsQuote:
Originally Posted by bernie
... PeterMillerFishing.com ...http://www.petermillerfishing.com/wp...84268919_o.jpg
1961---First 500 (first 'tuner'?)Quote:
Originally Posted by OLEGATOR
1962----First 500 with Jet Prop exhaust
We called the tuner a 'horn'
That tune horn actually worked. My Dad and I adapted one to a Merc 450. The boat picked about 3 mph. No other changes.
Quote:
Originally Posted by 2us70
The 450 came with the block drilled and tapped (1/4-20) to attach the horn--