FWIW, The atomic 4 was supposed to achieve 30Hp at 3500 RPM, less Hp at lower
RPMs.
Found this on website selling engines replacements:
"Several Beta Marine diesel engines are available to replace the Atomic 4
gasoline engine for your Sailboat engine repower depending upon the vessel's
displacement. General guidelines for displacement hulls follow, but please
contact Joe DeMers for a specific recommendation concerning your boat and
application.
* Boats displacing up to 7,500 pounds may use the Beta 10 Ten engine.
* Boats up to 10,000 pounds may use the Beta Marine 13.5 hp engine.
* Boats between 10,000 and 14,000 pounds need the 20 hp Beta Marine engine.
* Boats between 14,000 and 18,000 pounds require the 28 hp Beta Marine
engine."
Google, "Beta Marine" to find it.
Chuck
Resolute
1990 C&C 34R
Broad Creek, Magothy River, Md
----- Original Message -----
From: "Bill Coleman via CnC-List" <cnc-list@cnc-list.com>
To: cnc-list@cnc-list.com
Sent: Thursday, January 29, 2015 5:41:49 PM
Subject: Re: Stus-List Universal M4-30 (Eric Baumes)
That’s what she s-
Darn, I’ve got to stop saying that!
Bill Coleman
C&C 39
I have to ask the question: will it fit in the hole?
That's a lot of engine for a 29ft boat. The A-4 only put out About 18hp at the
RPM that it probably generated pushing your boat.Â
My yanmar 2gm20f seems to have more power than my A-4 did
YMMV
ROB
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