Water Temps???

[Garucci]

Hey guys, I was wondering if any of you run a thermostat kit on your boats??? My boat never gets over about 110 degrees and I know i need to build some heat to get optimum performance out of my motor. Thanks for any imput.

[Kindsvater Flat]

No thermostat in mine. Runs about 110-120 all day

[GofastRacer]

No T-Stat here, runs 150 cruising, maybe get up to 160 running laps!..

[infotraker]

I was running cool, put in a themo from CP pewrformance. Temp now ranges from 120 to 180.

[058]

I run a modified automotive 160 deg. thermostat in my BBF/Howard flat. I use a bypass below the thermostat back to the inlet side of the pump and a dump line above the thermostat. Engine runs a consistent 160-170 deg with dry headers. [no pre-heated water]

[dmontzsta]

Just air it out a bit more. :D

[AzMandella]

Nope.NO thermo.I run an oilcooler that prewarms the water before going into the block.Temps run between 180 idling to 160 standing on it.

[Garucci]

thanks for the info guys. i guess cool running temps is just part of the game!!

[Thunderbutt]

Run the water through the cooler first then the headers to preheat then into the motor

[dmontzsta]

thanks for the info guys. i guess cool running temps is just part of the game!!
All the boats I have seen run really low temps, which is a good thing for most and bad for others, depends on what you are doing...I think mine runs around 115-120 when warmed.

[PE 316]

I picked-up a set of MOROSO "Water Outlet Restrictor Kit" for mine...
In my BBC I run the "blue" (3/4" hole) restrictor and it keeps my temps in the 150-160 degree range...
(without anything in the water outlet, it would run in the 110-120 degree range)
The kit costs only about $5 - $6
Here is a "link" to the information for this kit:
Moroso "Water Outlet Restrictor Kit" (http://moroso.com/catalog/categorydisplay.asp?catcode=29018)
Mike

[wsuwrhr]

Running under 150 water temp runs the risk of cracking the exhaust seats.
Water that cool is bad for the motor, and gives away combustion heat which is no good for power.
Brian
just my .02

[BK]

I picked-up a set of MOROSO "Water Outlet Restrictor Kit" for mine...
In my BBC I run the "blue" (3/4" hole) restrictor and it keeps my temps in the 150-160 degree range...
(without anything in the water outlet, it would run in the 110-120 degree range)
The kit costs only about $5 - $6
Here is a "link" to the information for this kit:
Moroso "Water Outlet Restrictor Kit" (http://moroso.com/catalog/categorydisplay.asp?catcode=29018)
Mike
I wouldnt think running a restrictor on your outlet would be a good idea for block pressure would it? I guess you could run a pressure relief valve along with that to control it?

[HM]

I wouldnt think running a restrictor on your outlet would be a good idea for block pressure would it? I guess you could run a pressure relief valve along with that to control it?
Restricting the water is a bad bad idea. A pressure relief valve is a good good idea whether or not you are restricting it.
Besides....water temp does not represent what your motor is actually running at. I put an oil temp sender in the oil pan and found that while the water temp said 130, the oil temp was around 180. When I got on it, the oil temp would run up to 230!! (I was running a 750HP blown mouse) I ended up putting an oil cooler. We also ran the water through the heads first (supercharged application with the timing locked out at 38). I also put cylinder head temp gauges in and they ran 30 degrees higher than what the water guage said. Also, check the accuracy of your gauge(s).
The colder water in boats is a huge advantage for high performance. You get away with more timing, more compression, more boost, and longer and harder runs on 91 octane which would melt down in a car application.
The cooler the water you can run the better...but how cool is too cool? That is debateable and depends on your performance requirement. My builder was never woried about the low water temps, and he stands behind his work, and likes to build 800+ HP turn key Rat motors that get thousands of hours. If you are worried, put a thermostat kit in, but make sure you have good flow.
If you choose to restrict, put in a pressure relief and run a water pressure gage.