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 Post Posted: Fri Jun 01, 2012 9:35 am 
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Location: Kilgore Tx [North East Tx]
for aluminum head, aluminum intake, cast iron block drag racing, what are we using for coolant? Distilled water with some type of rust inhibitor? Tap water if it was low levels of harmful minerals with same treatment? Other considerations?

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 Post Posted: Fri Jun 01, 2012 10:11 am 
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Larry I know some track operators don't allow antifreeze at their race tracks because of cleanup issues after engine failures. That's good for them but not for my engine. I run a 50/50 mix of antifreeze and water in my engine to protect it from corrosion and also I've left the car in the trailer outside over night before and at times the temps do get below freezing here both early and late in the season.

Most of the "outlaw" tracks I run really don't care as they don't even have a Tech guy and they NEVER even look at my car. So as long as I'm breathing and the car has 4 wheels and an engine I'm good to go. ;-)

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 Post Posted: Fri Jun 01, 2012 10:53 am 
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Alum Heads intakes steel block. Straight water then add antifreeze in the winter.

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 Post Posted: Fri Jun 01, 2012 11:31 am 
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Larry, I run distilled water from my dehumidifier and add Prestone rust inhibitor with water pump lube.. Get at Walmart it's about 9 bucks for a quart and I leave it in there all summer and block and aluminum rad stays clean and rust free and never had a water pump failure yet :-# ......

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 Post Posted: Fri Jun 01, 2012 1:44 pm 
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Location: Kilgore Tx [North East Tx]
Just food for thought;

"There is some evidence that distilled water does absorb carbon dioxide when exposed to air, and this could conceivably lower the pH to a more acidic level."

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 Post Posted: Fri Jun 01, 2012 4:34 pm 
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I run a gallon of Zerex G05, then fill it with water. The G05 has a light gold color to it and it kinda looks like slightly rusty water so I figure if tech does check it they won't be able to tell. I had trouble with block plugs rusting out and the anti-freeze prevents that. Personally I don't think the diluted anti-freeze will make any more of a mess than water wetter or rust inhibitor/water pump lube.

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 Post Posted: Sun Jun 03, 2012 7:52 am 
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I've been running straight water with Water Wetter, but was thinking of putting just a bit of antifreeze in with it this time. I'm getting quite a bit of discoloration from rusting, although no buildup yet...........

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 Post Posted: Sat Jun 09, 2012 8:06 pm 
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Location: queensland, australia
Antifreeze type products are banned here in Australia, we use straight rain water (we have a water tank) mixed with water wetter. The water wetter was worth a fairly noticeable decrease in temps.We have a large four core aluminum radiator and a meziere pump. 720 hp small block that gets used on the street as well as raced.


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 Post Posted: Tue Jun 12, 2012 12:20 am 
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How about water and add some soluble cutting/machining oil for lube.


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 Post Posted: Tue Jun 12, 2012 8:23 am 
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J_6961 wrote:
How about water and add some soluble cutting/machining oil for lube.


This is what I recommend as well. Been doing this since the 70s. Doesn't work on the different metals that it comes in contact with and cleans up great. Doesn't take much though. You can over do it. Cuts something like 50-1.

Don

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