Cheap engine cooling mod?

[jamman]

Do you think instead of buying an exspensive oversized radiator or cooling head, that you could just add a radiator from one side of a 125 or 250 dirtbike? There seems to be alot of room for it and long hoses that could be tapped into quite easily.

[thmike]

try it and tell everyone how it works

[zach45]

might as well buy a new head....

[RichM1983]

Ive heard of people running two stock radiators on the honda 250r but Ive not read any reports on how well it works. I would be worried about the impellers ability to move the water. I dont really have any idea though.

[jamman]

I've got some radiators off of a '87 YZ250. Do you's think there will be less problems installing the one without the radiator cap? Two rad caps seems like room for extra failure. I like that double up idea though! It looks like it would work easily with the addition of Maier's big single hole rad cover for the LT. Do you think there is aftermarket impeller cause I could see that being an issue especially with double the coolant capacity. I'm guessing the YZ rad is adding about 1/3 extra. I think it will flow. I'll wait for my temperature senser to come in, that way I can keep an eye on it and tell everyone the difference in temp numbers throughout a normal riding day with and without it.

[thisperishedmin]

Originally Posted by RichM1983

I would be worried about the impellers ability to move the water. I dont really have any idea though.

same here. you have to remember youre adding more volume that it has to be able to move through the system. If you add another radiator and it cant even cycle the water efficiently, it may actually end up running hotter.

Why are you trying to get better cooling in the first place?

[Smkmup]

Try running some engine ice if you havent all ready...That will really bring your temps down from my experiecence with it....

[thmike]

why do you want to run two radiator...do you have like thousand of dollars into your engine making it run a lot hotter...because i know lots of ppl who have tuns of mods and still run stock radiators without overheating

[jamman]

I'm running some Redline Water Wetter. I'm trying to make it run cooler only cause I figure any engine would last longer if it were running cooler. Just like the old outboards with constant cool water running through them. They seem to almost be like hand me downs. Just keep going and going! My brothers YZ 125 cylinder can be touched by hand after a half hour of riding. Can't do that with my LT. Not for too frickin long anyways! My Warrior was retarded. Could have fired her up in the winter and used her as a back up furnace!

[Daveed]

I've been toying with the idea of adding a fan and a small battery (sorta like whats on most of the new 4 strokes).