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[mariner]

I always knew some outboard motors (a  relative of my mogors above!!) were powerful but a quad cam 7.6 litre V 12 mounted vertically on the end of a boat is something else.

 

https://www.mercurym...ASAAEgKFjfD_BwE

 

The internals 

 

https://samerwebapp0...e_feb-21_lr.pdf

 

Apparently the digital control system allows you to mount up to six together - a 3,600 bhp speedboat

Edited by mariner, 12 April 2022 - 01:31.

[Bob Riebe]

Hmm, the late gentleman who ran (it still operates) Monty Racing (specialized in Evinrude/Johnson V-8s) has developed a blower manifold for fuel injected E/J  V-8s; it would be interesting to see one of Monty's V-8s, without blower go up against this monster one on one.  (When he was still around, he used to advertise he could tune one's V-8 to be more fuel efficient or up to 800hp for racing.