Use this forum to discuss all things relating to Bertram 35s.
Starwarz
Ensign
Posts: 7 Joined: Sun Feb 24, 2019 2:54 pmLocation: USA
Post
by Starwarz Mon Feb 25, 2019 5:10 pm
What can I expect from a 1976 35' Convertible with twin 454 mercs?
fred246
Ensign
Posts: 13 Joined: Mon Feb 22, 2010 12:15 pm
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by fred246 Wed Mar 06, 2019 11:31 am
.5 mpg at cruise
dougl33
Admiral
Posts: 4183 Joined: Tue Aug 26, 2003 5:26 pmLocation: USA
Post
by dougl33 Thu Mar 07, 2019 6:00 am
Figure about 30-32gph at 3150-3200rpms. Not sure about the cruise speed at that rpm with a gas 35.
Regards, Doug L.
1986 33 Bertram FBC Cummins 6BTA's Queen Elizabeth
Marblehead, MA
Yardpro
Lieutenant
Posts: 25 Joined: Thu Sep 07, 2017 8:55 amLocation: USA
Post
by Yardpro Mon Apr 15, 2019 5:11 pm
I cruise about 19 knotts
moparharn
Ensign
Posts: 8 Joined: Fri Apr 19, 2019 10:05 am
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by moparharn Mon Apr 22, 2019 4:23 am
At 18 knots I am turning 2750-2850 and burning low 20's in gallons per hour. If you crank her up to 3200 you will see 27-29 GPH. That 400 rpm makes a big difference in the burn on my boat.I have twin rebuilt original 454 mere's upgraded to Crusader specs/parts. The castings are Merc.
