SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: eodjohnson on October 17, 2010, 09:39:57 PM
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Hello everyone,
i am new here and signed up to help me learn as i go through building my project boat. i figure this is the best place to post this question if not please show me where.
i am going to be running blown BBC setup and am wondering how the cooling system is plumbed with a jetdrive installed. i know the jet has a discharge port for engine water supply which i will run to a raw water screen with a pressure regulator built into it. i also read the optimum pressures are to be regulated down to a high of 20psi and low range of 16-18 to prevent blown headgaskets, is this correct? also i would like to know how the average plumbing is done since im running a more race style motor i dont believe i will have a thermostat, bad idea or will i be ok?
i have been repairing cars and rebuilding motors or transmissions for a while now so i have a bit of technical knowledge (i am by no means the man just saying i know some stuff), if i could get a reply with technical terms that would be great the more i learn the better.
Thanks,
Alex
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Welcome Alex, the experts will be along shortly.
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Search around a bit. Several different versions of how to plumb the water lines have been posted many times. There are a couple of good diagrams somewhere around here. And welcome to the madness. :thumbup:
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ill keep poking around here hopefully i can find them.
thanks both
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ok i found the charts i and i understand them but i still have a few questions.
if i use a regulator to control block pressure do i still need a thermostat or can i ditch that?
i have the option of running 4 an fittings at the coolant passage locations for each head. if i do this i will inject into the intercooler dual hose in the rear, come out the front dual hose to the block inlet(waterpump mount) put a cross over in the rear passage for the heads and come out the front of both heads to 2 seperate dumps in the back of the boat. there is no water injection for the headers because it has O2 sensors for the ECU system. i will add it later and run the ecu in non-O2 sensor mode and run like a banderlog injetion unit. this way i can run it in places that require water injection.
Is the Banderlog a good product to run or am i over complicating the water injection system with it? (just looking for opinions on this banderlog product, no sale pitching)