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Water Wetter


desertrider71
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antifreeze isn't a good coolant, it just raises the boiling point and lowers the freeze point. Distilled alone will cool better that distilled and coolant but without water wetter or coolant your water pump seals will fail sooner. All the race trucks from LOORRS short course use distilled and their favorite water tension breaker (Redline etc)

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That's why I would do the same as you and run a little coolant just to get the freeze point down to around 10*F. Water wetter is alkaline and breaks the surface tension on metal, no boiling air bubbles. Most brands have water pump lubricant also. As a side note I haven't had a water pump seal failure since I started squirting syn GL5 oil up the weep holes on everything. Dang, Murphys law says now I will.....

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Tried it once in a ktm, within 10 minutes into a national hare and hound the water transferred from cooling system to the trans via the water pump shaft seal, kept adding water and found out how tough a motorcycle trans is :thumb: The two could have been totally unrelated but it was enough for me to not use it again.

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"Just raising the boiling point" is pretty important.

Many of those race trucks (and cars) are also running 30 psi + in their cooling systems. (To raise the boiling point)

Nascar runs up to 60psi and sometimes water temps hit 265F. It's not 265 that melts motors, it's the internal boiling and cavitation that stops exchanging heat.

If I was having cooling issues, I would increase cooling capacity. Maybe a more powerful fan, bigger radiator, higher flow water pump.

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"Just raising the boiling point" is pretty important.

Many of those race trucks (and cars) are also running 30 psi + in their cooling systems. (To raise the boiling point)

Nascar runs up to 60psi and sometimes water temps hit 265F. It's not 265 that melts motors, it's the internal boiling and cavitation that stops exchanging heat.

If I was having cooling issues, I would increase cooling capacity. Maybe a more powerful fan, bigger radiator, higher flow water pump.

Water wetter isn't a magic potion but it does help in the heat exchange and that's all it does, if your cooling is marginal (by 20* F) it can get the temps in the comfort zone. If you still have overheating issues then you do like Svengooloie says and add cooling capacity OR reduce the heat load which you shouldn't have with the size radiators in most LT cars unless you're pushing too much compression or advanced timing for the fuels octane rating you are using (really the AKI index) or even a gearing issue and running to low an RPM.

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