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Harry[_2_] Harry[_2_] is offline
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First recorded activity by BoatBanter: Dec 2009
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Default Anybody Supercharge an Outboard?

Don White wrote:
On 2/4/2010 12:09 PM, Harry wrote:
Harry wrote:
On 2/4/10 11:18 AM, Jim wrote:
stp wrote:
On Feb 4, 7:20 am, Jim wrote:
I've got a Paxton on my '72 Cuda and it's a kick in the pants.
A friend did the work for me, but he's clueless about boats.
OB is a '92 Mariner 125.
Thoughts?

Search over at http://www.ScreamAndFly.com

Thanks stp. Nothing there about aftermarket superchargers.
Probably just not done, or rare because of practicality.

Found this about the Verado at
http://continuouswave.com/ubb/Forum4/HTML/006413.html
*****************
Weight can be saved by supercharging. Let's compare the weigh of some
200-HP outboard motors:

1.7-liter supercharged 200-HP = 510-lbs (Mercury Verado 200)
3.6-liter non-supercharged 200-HP = 580-lbs (Suzuki DF200)
3.4-liter non-supercharged 200-HP = 588-lbs (Honda BF200)

The supercharged motor is 70 to 78-lbs lighter. However, if we move
down
just slightly in horsepower to the 150-HP range, the supercharged motor
loses any advantage, and instead shows an 32- to 36-lb disadvantage:


D;oh...the 200 hp verado is a four cylinder engine displacing 105
cubic inches. The 'Zuke is a V6 displacing 220 cubes. I presume the
Honda has similar specs.

Guess which engines will last longer on a heavy boat?

70 pounds is insignificant on a 500-600+ pound outboard.


Insignificant? 14% is not insignificant. The guy wasn't talking about
heavy boats or longevity dip****.


Harry, I always get a woody when you argue with yourself.


Well then. You are half way to a good organism. You know what to do
next. Enjoy, Don.