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Canadian Daves JustKDX
Dumb coolant question
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[QUOTE="Robcolo, post: 1012062, member: 28062"] [b]Diluting antifreeze[/b] You don't really need to dilute antifreez -there's actually quite a bit of water in all commercial antifreezes. Water has a somewhat higher heat carrying capacity than does the ethylene glycol so the more water in the mix, the more heat that mix can transport --that is if everything goes right. Out here in the west we have very dry [low humidity] and very thin [high altitude] air -both which markedly affect the air's abillity to carry heat out of the radiator. KDX 220s have undersized radiators and tend to overheat easily. The water/glycol mix quickly boils inside the cylinder's cooling passages which further slows down heat transfer from cylinder to coolant. It's a mess. There are 3 solutions 1. Ride your 220 near sea level. 2. Buy oversized radiators or 3. Install Evans NPG+ [ethylene-propylene glycol blend which is completely water free] Boiling point is around 375F. Yes the engine runs a bit hotter but will never boil whereas a boiling engine will run dangerously hot. And, to a point, a hotter running engine produces more power [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Dumb coolant question
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