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11
Engine Mechanical / Electrical / Re: 454 Tunnel ram
« Last post by Flusher on August 01, 2021, 02:11:50 PM »
Also depends on which top plenum you have.  You may only be able to fit Carters or Center Sqirters.  If you are able to turn the carbs sideways on the manifold, that will open up more options for you.

There is not a huge selection of metering jets and rods for the Carters, but the rods can be modified easily.  I used to turn the small diameter, of the metering rods, smaller on a lathe, but I saw a video (that I now can't find) on YouTube where:  they just grind or file a flat on the small diameter.
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Jet Pumps / Re: More out of pump
« Last post by Flusher on August 01, 2021, 01:36:28 PM »


I am new to jet boat but from what I was told from another boater is a Jetavator is a place diverted but what they call "old style" i have a floor mount to adjust the angle of the nozzle. He saud the Jetavator is a brand specific place diverted made only for berkley jets. Truth to that who knows..

Jetovator is Berkeley Jet-Drive's adjustable trim mechanism.

Place Diverter is an independent company manufacturing jet boat trim systems.  Place Diverter is a much more elegant design and is currently or has been available for just about every pleasure boat jet drive system, most of which are Berkeley cloans.

I have hated Jetovator from the first time I worked on one.  Fortunately, I have only replaced Jetovators with Place Diverters.

The important thing is, apparently you have a Diverter.

You will get your best speed with the angle of the nozzle about 7-degrees +/- up relative to keel.  At least that is a good starting point.
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The No Wake Zone / Big river and Parker weekend
« Last post by Spanky_74Kona on August 01, 2021, 12:16:10 PM »
Flat and empty


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14
The No Wake Zone / Re: 1976 Hawaiian day cruiser
« Last post by 76Mantra455 on August 01, 2021, 09:40:58 AM »
The day cruiser is so cool bro canít wait to see it


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15
Engines / Engine Parts For Sale / Re: Wtb
« Last post by River man on July 31, 2021, 06:44:49 PM »
Thanks again John it was great meeting you to keep in touch I already fix that little spot in that one turned out great


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16
The No Wake Zone / 1976 Hawaiian day cruiser
« Last post by mahony.2469 on July 31, 2021, 12:56:02 PM »
Picked this up as a project, to make as my family boat and all the way around boat... Came with original bbf and Berkeley jca pump.....

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17
Engines / Engine Parts For Sale / Re: Wtb
« Last post by 75fantasy on July 31, 2021, 12:55:01 PM »
It was great meeting you Mike! Hope the logs work out. Thanks


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18
Engine Mechanical / Electrical / Re: 454 Tunnel ram
« Last post by K-034 on July 31, 2021, 11:47:09 AM »
Holly 660 center squirt carbs seem to work pretty good on funnel rams


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19
Boats For Sale / Re: Craigslist
« Last post by Roadrunner on July 31, 2021, 10:13:38 AM »
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Engine Mechanical / Electrical / 454 Tunnel ram
« Last post by CobraJet454 on July 30, 2021, 11:05:46 PM »
My first tunnel ram engine need help figuring out what size carbs to run Running a mild 454
9:1 CP
049 larger ovals basic port work 3 angle valve job
Hydraulic cam 540 lift 114 LBS 236 248 D @ .050
Howard roller rockers 1.7 ratio
Msd ignition with 6al box
Over transom bassets
Weiand High-rise tunnel ram
2 600cfm carter afb competition carbs
8psi mechanical fuel pump.
I seem to lean out on the top end with current set up.
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