Funny, my son said the same thing!. It went into the gold bread pan, then  goes on the bottom of the blue thingy like this.



Ray

I've been told, or read, or maybe dreamed, somewhere in the neighborhood of 300 PSI at speed?

Someone will chime in if I'm off my meds again...............

Ray

I've been told, or read, or maybe dreamed, somewhere in the neighborhood of 300 PSI at speed?

Someone will chime in if I'm off my meds again...............

Ray

Stop and think for a second! If it were anywhere near 300 , How far would it shoot out of the overboard dump!

Another thing to think about is what side of the impeller is the motor getting its water from? ( hint , The suction side not the pressurized side )

Not nearly as much as you might think , 15 to maybe 30 under some conditions, honestly folks these boats if you think about it were originally produced in the 70s with no valving , no gate or ball valves at the jet water take off, no thermostat kits (excepting Berk Pakajets) with largely automotive type engines ,"marinized" with a set of exhaust manifolds and a flame arrestor. no voodoo no high tech stuff! My first new Jet in late 75 had a simple single unregulated line to a T to the front of the motor then out of the top of the intake to the exhaust that's it (its still running today that way without a hitch )  Tom

well the thermostat and PR valve mods would still seem to benefit performance and reliability...right?

p-jet

 Wow that really makes you think, good info as always Tom..........

Now another question, what is the most pressure you can have before you lose a gasket and milkshake the bitch.

My pressure relief valve only puts out anywhere between 7-22 lbs to the engine

With the way they had it back in the day compared to now, and with all our new valves and goodies seems people have more problems now then back then... things seemed to be simplified then i guess.......

well the thermostat and PR valve mods would still seem to benefit performance and reliability...right?


p-jet

Alls I'm saying is Jet boats are fairly simple uncomplicated "beasts" I belive the majority of things we do are often  are possibly corrections for other problems or conditions eg mismatched heads,intakes, poorly sealed intakes and timing covers etc etc , maybe because its our Guy nature to have to phuck with something  , example & case in piont: my FILaws 78 Glastron CVX 20 has no less than 1000 hrs on the original motor and Berk jet runs close to 60mph @4800 rpms sounds good has 60 lbs of OP runs 120 * and a OE frt sump pan! still starts every time never has had more than a half dozen of Rhondas siblings and us and kids and grandkids driving the sh*t out of it for years , nothing but oil changes a couple starters and a carb o'haul or two , no water valves no t -stat , No bs one of my Bro in laws used to spin donuts in this thing over and over again , its been beat abused almost sunk and overheated and to top it off when her "Pops" changes the oil on the Glastron he pulls the oil sender and puts in a fitting and a pipe to a 5 gal bucket and fires the motor  to pump the oil out (I know I cringe)  Tom

 BTW re "suction Pressure" (sounds like an oximoron huh) when actually you "guage" these boats you'll be amazed your suction will go to around 10 to 15 on average , maybe higher if you have aggressive hardware such as Glenn described and the faster you go and the more HP you add and the more aggresssive you get etc etc , Tim Place told me "Going places" (fuel boat)  would "Data" 150 psi at half track 

Stop and think for a second! If it were anywhere near 300 , How far would it shoot out of the overboard dump!

Another thing to think about is what side of the impeller is the motor getting its water from? ( hint , The suction side not the pressurized side )

Take another look at a Berk suction housing Marc...you'll see that the entrance to the engine water outlet on the suction housing is actually BEHIND the wear ring and off to the side of it, which would be the pressure side of the impeller. After all, something has to push that water through the motor...it's not gonna flow through it all on its own.