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::MD RPM SERIES STERNDRIVE MODELS ::
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MARINEDIESEL’S “RPM” Series Engines
From day one MarineDiesel has been focused on producing the
highest performing direct replacement marine diesel engines our
industry has to offer. With this at hand MarineDiesel desired to
produce a diesel engine product that better duplicated the top
end performance of the typical gasoline small block and big block
V8 engines; hence the birth of MarineDiesel’s “RPM” engine line
with a 4,000 RPM redline.

The “RPM” engine line is the industry’s only Supercharged V8
based marine diesel engine that operates at 4,000 rpm and
therefore allows the standard gear ratio’s from both Mercruiser
and Volvo Penta sterndrives to better operate as designed. With
standard lower rpm diesel engines, the standard ratios of 1.36 -
2.00 are not suited to properly match their torque curves and
propping requirements.

MarineDiesel’s “RPM” engine lineup includes the 200 Hp
Barracuda-RPM engine, the 330 Hp Hammerhead-RPM engine, and
topping the lineup is the 400 Hp Tigershark which is offered only
as an RPM engine. Individual spec sheets are not included for
these products as the RPM product changes effect only the
horsepower between 3600 & 4000 rpm, not the lower rpm torque
levels.

The RPM series engines include custom DB series mechanical
fuel pumps as well as MarineDiesel’s custom injectors. The main
benefit of the RPM engines appears in top speed with sterndrive
models, not to be confused with the additonal torque required by
heavier boats.
330hp hammerhead
200hp barracuda