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-   -   How many hours on 400's? (https://www.offshoreonly.com/forums/general-boating-discussion/346005-how-many-hours-400s.html)

Nate5.0 04-07-2017 09:07 PM

I can only talk from what I have been on but triple 350 CC'S are poker run hanging with the twin 500 boat at cruise Speeds. Of course the blue motor boat can get up to a top speed above the CC but in the end they cruise the same with less effort by the CC even with the 6-8 people on board


Yes if you have a top dog boat like your self then really there is no match or comparison at all.

Wildman_grafix 04-07-2017 09:54 PM

I know that I don't want trip or quad anything. Don't care if it is a OB or not.

Nate you have a good point but today's closed cooled 500hp I/O's are reliable to.

I am more interested in seeing some 30-35 V hull NON CC sport boats with twin 400's. Like the cats are doing. It would be interesting to see how those would run.

hogie roll 04-08-2017 03:36 AM


Originally Posted by Wildman_grafix (Post 4544552)
I know that I don't want trip or quad anything. Don't care if it is a OB or not.

Nate you have a good point but today's closed cooled 500hp I/O's are reliable to.

I am more interested in seeing some 30-35 V hull sport boats with twin 400's. Like the cats are doing. It would be interesting to see how those would run.

There's at least 20 flavors of those, if you count CCs :D

Mine would run 70 with 400s propped conservatively. A lighter 30 step hull would be good for 80 or more.

Wildman_grafix 04-08-2017 07:11 AM


Originally Posted by hogie roll (Post 4544580)
There's at least 20 flavors of those, if you count CCs :D

Mine would run 70 with 400s propped conservatively. A lighter 30 step hull would be good for 80 or more.

Ok fixed it.

hogie roll 04-08-2017 11:17 AM

Someone in the islands must have put 400s on a 33 powerplay already.

turbo rr 04-10-2017 05:14 PM


Originally Posted by hogie roll (Post 4544637)
Someone in the islands must have put 400s on a 33 powerplay already.

Not the same, but there is a 33 with a pair of 350sci's. It ran low 80's.

otis311 04-17-2017 02:50 PM


Originally Posted by WARPARTY36 (Post 4544129)
I have 500 plus hours on my 300's with nothing but routine maintenance. Also have 3-4 years of warranty left on them:party-smiley-048:

Bubba Thats like a sore dick...Ya cant beat it !!

Quinlan 04-17-2017 05:25 PM

And I am SURE several of those hours are because he Forgot they were running while Partying lol
Damn things are To quiet.

WARPARTY36 04-18-2017 09:37 AM

There probably are a few hours from that like the first time we docked in KW, but I also usually leave one idling while anchored(with the throttle only button engaged so the prop can't spin) as a generator to keep the house battery up. The 300's at idle are .4 gph each. You can't run a generator for that little fuel usage and warranty is unlimited hours(and I don't have a generator).

hogie roll 04-18-2017 09:49 AM


Originally Posted by WARPARTY36 (Post 4547249)
There probably are a few hours from that like the first time we docked in KW, but I also usually leave one idling while anchored(with the throttle only button engaged so the prop can't spin) as a generator to keep the house battery up. The 300's at idle are .4 gph each. You can't run a generator for that little fuel usage and warranty is unlimited hours(and I don't have a generator).

I do the same


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