Just a mock-up shot but heres what I got so far  .

my current configuration...

after taking another look.....your diverter adjustment is static and you have a hydraulic controlled bucket...crazy setup man.... i want a ride! 

thats a crazy bowl extension....are your studs that long?

now there you go getting all gay on us.

nice set up

I'd be looking into building a guard for that thing when its on the trailer.  I feel like people are aiming at my jet when towing and that thing has got to hang out at least 2' farther than mine.

Looks bitchen.

So what is that canister that replaces the inlet cover for? I see it has a hose going to it - for engine breather possibly? Something else?

its a pop off valve....its for drag race application....it relieves pump pressure on shutdown

That's on the inlet side, so I assume it is really to help the shaft not snap and not really for the pump per se? am I close?

on shutdown (expected or not)...either the impeller stops (ie blown motor) or slows down to a speed too slow to allow water to pass though at high speeds....this causes back pressure to be built up in the suction housing and cause wild results at high speeds. because that water being forced into the pump has no where to go and will lift the back of the boat out of the water and cause violent bow steers. that valve relieves that pressure automaticly (at a designated pressure) or manually with an override button.

i do believe these are required in some NJBA classes.

now the above statements might not be 100% accurate as I dont have any first hand experience with them, its just what ive learned from talking to some of the drag guys at the races. If anyone would like to chime in with any corrections or additional comments, feel free.

after taking another look.....your diverter adjustment is static and you have a hydraulic controlled bucket...crazy setup man.... i want a ride! 

the bucket is actually air-actuated. same principal as a hydraulic cylinder but without the mess when it leaks.
i switched to a fixed nozzle angle because i didnt like the amount of play that is present in a brand new morse cable. I measured 13 degrees of slop in the nozzle when the handle was in any one notch. Not a good thing at high speeds. I switched to a hydraulic diverter with up and down stops to solve the problem but after realizing i didnt need to move the nozzle during a race i took the hydaulic system out. I only use the adjustable rod now to set the nozzle angle where i want it depending on water conditions. 

So what is that canister that replaces the inlet cover for? I see it has a hose going to it - for engine breather possibly? Something else?

the cannister has a piston inside that closes off the hole where the handhole cover would normally go. Its air actuated so when i have 125psi inside the can it pushes the piston down. If inlet pressure spikes above that or if i think the boat is doing something i dont want it to, i hit a button of my steering wheel and vent the excess inlet pressure. It makes slowing the boat down from 125 mph much easier and it also enables me to hang the shoe down below the keel pretty much anywere i want without the boat hopping badly on shut down. Its called a pop-off.

on shutdown (expected or not)...either the impeller stops (ie blown motor) or slows down to a speed too slow to allow water to pass though at high speeds....this causes back pressure to be built up in the suction housing and cause wild results at high speeds. because that water being forced into the pump has no where to go and will lift the back of the boat out of the water and cause violent bow steers. that valve relieves that pressure automaticly (at a designated pressure) or manually with an override button.

i do believe these are required in some NJBA classes.

now the above statements might not be 100% accurate as I dont have any first hand experience with them, its just what ive learned from talking to some of the drag guys at the races. If anyone would like to chime in with any corrections or additional comments, feel free.

that's a good explanation of how it works.

Intake cover    Whats this secret part all about ?   If it keeps debris out of the pump while towing , I need some info about one !!

Its not a secret. i'll snap a pic of it next time im in the shop. its a canvas cover that goes between the trailer bunks to cover the intake up. it keeps rocks and stuff out of it when i'm towing to the river and back. I got it from the cool cats at jet boat performance.

Another one that I like, painted and asembled I think by TRG Fiberglass, I'm going to be copying a little bit of this one as well...