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air cooled engine in boat

Old 03-03-2005, 07:41 PM
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ltllavey
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Default air cooled engine in boat

what are the cons of putting an air cooled nitro car engine in a boat? would it overheat quickly? would you steer clear of doing so?
Old 03-04-2005, 01:02 AM
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Ron Olson
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Default RE: air cooled engine in boat

It depends on which boat and which motor. I have several .12 powered boats that are running air-cooled car motors. My boats have a low enough profile on them so that getting air to the heads is no problem. I've even taken the top 3 fins off one motor because it cooled so well. The other good things in most boats is that we have cooler air and more air than a motor trapped inside of a Lexan body with a little hole in the windshield. As long as the motor isn't blocked from getting cool air, I see no problem.
Old 03-04-2005, 04:43 PM
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laserflyer
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Default RE: air cooled engine in boat

I have a traxxas nitro vee with a air cooled dtx .18 in it and it runs great with no overheating[img][/img]
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Old 03-05-2005, 03:36 PM
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ltllavey
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Default RE: air cooled engine in boat

i would be running something very similar to laserflyer, a .16 air cooled megatech in a 30" custom shallow vee boat with all traxxas components, thank you both for the info very helpful and reassuring seeing as i already bought the motor.
Old 03-05-2005, 11:35 PM
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Ron Olson
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Default RE: air cooled engine in boat

Keep in mind that some air-cooled motors are better in boats than others. From what I've found, the milder, lower cost motors seem to work better. I had to do a lot of work to find the right prop and the correct tuned pipe length.
Old 03-06-2005, 09:28 PM
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ratpower396
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Default RE: air cooled engine in boat

with a buggy engine in there is it necessary to leave the hatch off while running for more airflow??
Old 03-06-2005, 10:18 PM
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Default RE: air cooled engine in boat

You need the cool air not only for the head but for the carb. Warm or hot air can change your needle settings drastically. If you must run a cowling, open it up with some holes for plenty of air to enter and exit.

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