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24-01-2016, 10:50 AM
#
1
leeornsby
Registered User
Location: Sarisbury Green
Occupation: Electrician
Interests: Racing
Boat make: Ring 34
Engines: Mercruisers
Cruising area: Solent
Join Date: Dec 2009
Location: Sarisbury Green
Posts: 415
Inboard Choice
Hi guys,
I've recently purchased an extreme 21 with a 5.7, the 5.7 is shot so I've got the option to put in either 5.7 mpi, 6.2mpi, 7.4mpi. Has anyone every had any of these engines in a 21 before would be greatful of some performance figures and reviews.
Cheers
Lee
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www.ornsby-electrical.co.uk
24-01-2016, 12:09 PM
#
2
Captain Chaos
The Doc
Join Date: Mar 2004
Posts: 8,291
6.2 ran concurrent with the 5.7 (assuming the 350 mag type), had a bit more hp.
6.2 was intended as the stock replacement for the older, heavier, thirstier (but I'd assume a tad more bottom end as its a bb) 7.4
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