WATER COOLED HEAD
05-20-2005, 10:05 PM
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WATER COOLED HEAD
Hi
I'm building a Crackerbox boat and i am going to use a HPI savage S-25 engine in it. The thing is I am looking for a water cooled head that will fit on the S-25 but I don't what will fit or where to look for one. Can any one help me out.
I'm building a Crackerbox boat and i am going to use a HPI savage S-25 engine in it. The thing is I am looking for a water cooled head that will fit on the S-25 but I don't what will fit or where to look for one. Can any one help me out.
05-21-2005, 12:56 PM
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RE: WATER COOLED HEAD
Could always make one ..
or if she is not able to cool via air good enough , you could also simply wrap some small copper tubing around the jug .
or if she is not able to cool via air good enough , you could also simply wrap some small copper tubing around the jug .
05-21-2005, 06:09 PM
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RE: WATER COOLED HEAD
Terobob,
does the Cooper tubing realy work? I have been thinking about this for a while. We used to do this with smal nitro motors some 20 years ago. Haven't heard anyone going that way since then.
i even wonder if thin Al pipe could be use that is then smeared with heatsink compound.
Matt
does the Cooper tubing realy work? I have been thinking about this for a while. We used to do this with smal nitro motors some 20 years ago. Haven't heard anyone going that way since then.
i even wonder if thin Al pipe could be use that is then smeared with heatsink compound.
Matt
05-21-2005, 06:23 PM
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RE: WATER COOLED HEAD
Yes , it does work . granted .... not as good as a water cooled jug , but it does indeed work . The only thing you really need to make sure of , is that it is a tight snug wrap around the upper part of the jug . ( or get yourself a KOOL KLAMP , if you can find one [&o] )
What I do , is once I get the tubing wrapped tight , I then take some silver solder ( high temp ) and solder the tubing together so that whilst I have it snug around the jug , it stays that way . I solder the upper section to the next lower wind and so on and so forth . I also try to get at least 3 to 4 wraps .
What I do , is once I get the tubing wrapped tight , I then take some silver solder ( high temp ) and solder the tubing together so that whilst I have it snug around the jug , it stays that way . I solder the upper section to the next lower wind and so on and so forth . I also try to get at least 3 to 4 wraps .
05-21-2005, 09:56 PM
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RE: WATER COOLED HEAD
What size pipe? I seem to remember we attacked the old refrigerators to cut out some pipe. It would be about 1/8" diameter.
Matt
Matt
05-26-2005, 11:05 PM
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RE: WATER COOLED HEAD
Just get some copper tubing, aneal the tubing and wrap the head as tight as possiable. Or have the head machined down for a waterjacket.
Mick
Mick
05-28-2005, 02:29 AM
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RE: WATER COOLED HEAD
the S-25 motor is actually manufactured by novarossi. if you find that a novarossi aftermarket head will fit, then you can just order thier watercooled head from thier marine engine to fit your S-25.
