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440 Jet Boat Anyone ran or running one?
#674149
04/18/10 09:54 PM
04/18/10 09:54 PM
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Joined: Nov 2003
Posts: 915
Cincinnati OH
Bishop
OP
super stock
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OP
super stock
Joined: Nov 2003
Posts: 915
Cincinnati OH
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I picked up a 17 1/2 foot jet boat last fall been working on it needing some help on the cooling system anyone?
Brian
Last edited by Bishop; 04/18/10 09:55 PM.
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Re: 440 Jet Boat Anyone ran or running one?
[Re: Bishop]
#674152
04/19/10 11:30 AM
04/19/10 11:30 AM
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Joined: Feb 2003
Posts: 4,436
SO CAL
BB70DUSTER
master
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master
Joined: Feb 2003
Posts: 4,436
SO CAL
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Quote:
I picked up a 17 1/2 foot jet boat last fall been working on it needing some help on the cooling system anyone?
Brian
Did you get my pics over on Performance boats? 
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Re: 440 Jet Boat Anyone ran or running one?
[Re: BB70DUSTER]
#674153
04/19/10 01:09 PM
04/19/10 01:09 PM
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Joined: Jan 2003
Posts: 5,270
Missouri
MY340
master
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master
Joined: Jan 2003
Posts: 5,270
Missouri
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Try www.screamandfly.comThey have forums and tech sections. Nice boat! 
1970 FE5 Duster 360/904/3.91's SOLD
1973 TB3 SpaceDuster 340/4spd/4.10's SOLD
Moparless for now but when the opportunity is right I'll have another one.
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Re: 440 Jet Boat Anyone ran or running one?
[Re: Bishop]
#674156
04/19/10 03:33 PM
04/19/10 03:33 PM
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Joined: Jan 2003
Posts: 8,940
Holly/MI
Dean_Kuzluzski
master
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master
Joined: Jan 2003
Posts: 8,940
Holly/MI
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The beauty of the B/RB wedge for jet boat is you can use the front cooling ports for inlet/outlet or the lower block drain plugs as an outlet. Outfitting a T-stat is a bigger problem. There's ways to fab up a housing using a Brand-C marine T-stat housing.
If you really want to run an "enclosed system", simply learn how to use a TIG welder and make your own aluminum radiators then mount them into the side gunnels, w/remote elec. fans, or one big rad. mounted in back. Either way it's a fab all deal.
My 18' jet runs the coolant in through the front lower cooling passages and out the uppers. It has an old Edelbrock marine set-up. The key ingredient is to monitor your system pressure. With a closed system, an aftermarket electric pump (Mezuirre sp?) like the drag racers use might be the way to go. Jetters typically use a pressure by-pass regulator since pump pressure can get as high as 200-300 psi.
V-drives rule but jets are far more cost effective and easier to maintain.
R.I.P.- Gary "Coop" Davis 02/09/68-05/13/04
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Re: 440 Jet Boat Anyone ran or running one?
[Re: Dean_Kuzluzski]
#674157
04/19/10 10:52 PM
04/19/10 10:52 PM
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Joined: Feb 2003
Posts: 4,436
SO CAL
BB70DUSTER
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Quote:
V-drives rule but jets are far more cost effective and easier to maintain.
Uhhhh... yeh.... if you say so.... 
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Re: 440 Jet Boat Anyone ran or running one?
[Re: BB70DUSTER]
#674158
04/19/10 11:07 PM
04/19/10 11:07 PM
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Joined: Jul 2008
Posts: 30,430
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,430
Florida STAYcation
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Quote:
Quote:
V-drives rule but jets are far more cost effective and easier to maintain.
Uhhhh... yeh.... if you say so....
WHICH part of this quote do you have a prob with ?
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Re: 440 Jet Boat Anyone ran or running one?
[Re: BB70DUSTER]
#674162
04/20/10 01:12 AM
04/20/10 01:12 AM
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Joined: Jan 2003
Posts: 5,135
Kingsburg Calif.
Quikshft
master
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master
Joined: Jan 2003
Posts: 5,135
Kingsburg Calif.
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Quote:
Maybe back east where you guys are, V drives rule... not so much out here... nothing cheap about putting HP to a Jet either...
I'll second that, here in central cali on the Kings River between Reedley and Kingsburg a V-drive is pretty rare. The river is shallow, but....it's better than any lake for skiing. Your intended environment should also play a part in the decision between the two.
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Re: 440 Jet Boat Anyone ran or running one?
[Re: maundmotorworks]
#674165
04/20/10 09:43 AM
04/20/10 09:43 AM
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Joined: Feb 2003
Posts: 4,436
SO CAL
BB70DUSTER
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Quote:
Ok, I'll post a second question here. For a V-drive, 440 or 383?
My opinion is bigger is always better....
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Re: 440 Jet Boat Anyone ran or running one?
[Re: Dean_Kuzluzski]
#674166
04/20/10 09:46 AM
04/20/10 09:46 AM
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Joined: Feb 2003
Posts: 4,436
SO CAL
BB70DUSTER
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master
Joined: Feb 2003
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Quote:
Quote:
Quote:
V-drives rule but jets are far more cost effective and easier to maintain.
Uhhhh... yeh.... if you say so....
Call me crazy, but a pump just isn't as efficient as a prop. I'm not trying to stir up anyfight here  I own one of each and appreciate them both for what they are. BUT, given the same level of HP and a similar length, beam width of the hull the v-drive is worth 5-10 mph more. Yep, there's lots of fast jetters out there, way faster than me, but it's just an opinion, an observation over the years.
Its no secret a prop is more efficient, I just dont agree that a V-Drive rules... this is my last jet...
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Re: 440 Jet Boat Anyone ran or running one?
[Re: maundmotorworks]
#674168
04/20/10 11:04 AM
04/20/10 11:04 AM
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Joined: Jul 2008
Posts: 30,430
Florida STAYcation
BeEtLeJuIcE !
The village idiot's idiot
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The village idiot's idiot
Joined: Jul 2008
Posts: 30,430
Florida STAYcation
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Quote:
Ok, I'll post a second question here. For a V-drive, 440 or 383?
MY CHOICE is a hi-compression 383 ... since there is no transmission(and only ONE speed) .... I choose RPM abilities.
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