Anybody using a bypass thermostat?

[probablecause]

Ok,
Jim (Squirtin Thunder) gets first shot at this one.
Is anyone running a "bypass thermostat" to control water temperature? There is an article at this link Performance Jet - Tech Talk (http://www.performancejet.com/techtalk.htm) that talks about that and water pressure relief. I have an intake manifold gasket that has to be replaced because it is spitting water. The article also talks about not using a gate valve on the intake because the heads can actually run hotter than the engine because of the lack of water volume.
So is anyone using a water pressure relief setup or would a "bypass thermostat" solve this?

[Willis]

Hello People,
I have this product and it works very well.
http://www.rexmar.com/page160.html
The hook up is simple and my headers life spand is not shortened
Willis

[BigBlockBaja]

Hello People,
I have this product and it works very well.
http://www.rexmar.com/page160.html
The hook up is simple and my headers life spand is not shortened
Willis
Im running the same thing. No problems due to excessive pressure.

[probablecause]

Then what are you guys doing with the excess bowl pressure water? I would think that it has to be dumped somehow. With that picture (and I am going off plumbing memory for my boat), it shows the water going to the headers (snails).
http://www.aflacracing.com/images/albums/userpics/10001/logs.jpg
Water from the jet to the exhasut for warming.
Water out of the exaust to the engine.
Then hot water from the block to the snails.
Now with this by-pass thermostat (since there are four holes, not two) water is going to be pushed into the housing and into the manifold and not out only out like a normal jetboat setup? If someone has a picture of how they are running theirs that would probably help me understand it a little better.

[IMPATIENT 1]

I Run My Gate Valve So It Allows Water Outta The Motor Instead Of Into It.i Put Temp Gauges On Both Heads Last Yr. And They Never Got Hotter Than 190,broke A Gauge Threwing Beer At The Lake And Just Took Em Both Off.
The Pressure Relief Set-up Is Cool,but Pricey.plus I Gotta Stick With The "kiss Rule".

[Willis]

To control the inlet pressure from the jet drive, this company has several solutions that you can adapt
To control the inlet pressure from the jet drive, this company has several solutions that you can adapt
http://www.watts.com
Series: 25AUB-Z3
Description: Water Pressure Reducing Valves
Size Range: 1/2 to 2 in. (15 to 50mm)
Series 25AUB-Z3 Water Pressure Reducing Valves are used in commercial and residential applications to reduce incoming water pressure for protection of plumbing system components and to reduce water consumption. It consists of a bronze body construction, union inlet connection, integral stainless steel strainer and high temperature resistant reinforced diaphragm for hot water. The Series 25AUB-Z3 is available with a variety of end connections including: threaded, solder, PEX and CPVC with both union and double union connections. Series 25AUB-Z3 has an adjustable pressure range and is serviceable in-line. Maximum Working Pressure: 300psi (21 bar), Adjustable Reduced Pressure Range: 25 to 75psi (172 to 517 kPa), Standard Pressure Setting: 50psi (344kPa).
I've been using this valve on 3 boats over the last 15yrs

[SHIFTY]

To control the inlet pressure from the jet drive, this company has several solutions that you can adapt
To control the inlet pressure from the jet drive, this company has several solutions that you can adapt
http://www.watts.com
WHATCHOO TALKIN' ABOUT?

[Aluminum Squirt]

I run the rexmar thermostat kit as well as the hi-tech pressure by-pass valve. Keeps the pressure nice and low and keeps my motor nice and warm. It was a little pricey, I think I have about $250 in it between the two gadgets but it keeps everything in line. Any part can fail, but it is the simplest system I could come up with that addresses all of the issues of too much pressure, water in the oil, blown gaskets etc, as well as keeping my temps up at an easy to tune and jet 160 degrees. To me it wasn't about the money, it was about reading all of the posts on here about the same problems over and over again, causing everything from tuning problems to blown motors. The $250 was worth it to have piece of mind and not have to continually be adjusting valves. I tried to keep my system as simple as possible and with dry headers, its plumbed pretty simply. Also, I've tortured my system with plenty of sand and while I know that's not good for it, its a nessessity where/how I boat. My system has never had any sand related issues. I highly recommend both-Aluminum Squirt

[Willis]

Shifty,
:messedup:
Are you coming to the NJBA April 22-23 races?
The RR class is cool!!! :)
Willis

[superdave013]

Then what are you guys doing with the excess bowl pressure water? I would think that it has to be dumped somehow. With that picture (and I am going off plumbing memory for my boat), it shows the water going to the headers (snails).
http://www.aflacracing.com/images/albums/userpics/10001/logs.jpg
Water from the jet to the exhasut for warming.
Water out of the exaust to the engine.
Then hot water from the block to the snails.
Now with this by-pass thermostat (since there are four holes, not two) water is going to be pushed into the housing and into the manifold and not out only out like a normal jetboat setup? If someone has a picture of how they are running theirs that would probably help me understand it a little better.
that photo is for water jacketed logs or manfiolds. If you run water injected headers like bassetts that photo does not apply.
Some guys are using pressure regulators from Granger with good sucess to control block pressure.
The Rex T stat is great for controlling engine temp. The bypass in it is to keep water moving through the water jacketed exhaust (logs or manifolds) even when the engine is cold.

[SHIFTY]

Shifty,
:messedup:
Are you coming to the NJBA April 22-23 races?
The RR class is cool!!! :)
Willis
I WILL MOST LIKELY WAIT UNTIL THE END OF THE SUMMER. I HAVEN't EVEN DRIVEN THIS BOAT BEFORE, MUCH LESS DRIVEN ANY BOAT WITH THIS MUCH POWER. I'm SURE THERE WILL BE A LEARNING CURVE. I THINK I WOULD BE BEST OFF TAKING A FEW MONTHS TO GET USED TO THE CHARACTERISTICS OF THE NEW SLED BEFORE HAMMERING ON IT AT A RACE...