View Single Post
  #10  
Old 09-19-07, 08:21 PM
Wishbone's Avatar
Wishbone Wishbone is offline
Ya never know.
 
Join Date: Jul 2006
Location: Riding in the rain
Age: 26
Posts: 2,799

Bike requirements


JOE

Boiling o is a bulk process, so at the boiling point molecules anywhere in the liquid may be vaporized, resulting in the formation of vapor bubbles.

water wetter helps by- This localized boiling can cause a layer of water vapor to form over the hot spot. This vapor forms an insulative blanket and prevents heat from leaving this area, thus making the hot spot even worse. But reducing the surface tension of the water makes it easier for vapor bubbles to leave the surface of the cylinder head and allows the bubbles to convect heat away from the area. Something that changes the surface tension of a liquid is called a "surfactant". It does not take very much surfactant to significantly change the surface tension of water. Hence, you do not need to add very much "Water Wetter" in order for it to do its job.

An additional benefit of using "Water Wetter" (in conjunction with 100% water) in you cooling system is that water has an extremely high heat capacity. Thus a gallon of 100% water can carry more heat away from you engine than an equivalent gallon of 50/50 water and coolant. Water also has a high thermal conductivity which increases the convection of heat away from the coolant passage walls and into the free stream of the liquid flowing through the passages.

DAVE

I have run water wetter from late this past winter when it was dipping into the teens and had no problems. I also leave my bike outside.

In another 2 months I will add 20-30% anti freeze just to be safe
Reply With Quote