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antifreeze or water

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ih54
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PostPosted: Sun Nov 04, 2012 4:14 am    Post subject: antifreeze or water Reply to specific post Reply with quote

well guys can you tell me how mutch power you gain in horsepower by runing water insted of antifreeze i know it makes a diffrence is it that water is thiner ?
 
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gene bender
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PostPosted: Sun Nov 04, 2012 4:19 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

none you could measure
 
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Joshua Rod
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PostPosted: Sun Nov 04, 2012 5:07 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

I don't know if there is any difference in power output, but I wouldn't take the risk of straight water. Too much is at stake .
 
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Red Dave
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PostPosted: Sun Nov 04, 2012 5:29 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

I wonder where you ever got that idea.
I've never heard that before, and I can't imagine what difference it could possibly make.
 
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davediehl@hotmail.com
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PostPosted: Sun Nov 04, 2012 5:30 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

You will not gain horsepower from changing coolant to water. You will inherit problems with straight water. Rust, boil over, freezing, are just a few that come to mind.
 
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IH54
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PostPosted: Sun Nov 04, 2012 5:48 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

WELL TO ANSWER YOUR QUESTION IN PULLING TRACTORS OR TRUCKS OR WHATEVER THERE IS LESS DRAG ON THE MOTOR THROUGH THE WATER PUMP GENERATED FLOW WITH WATER IT AA THINER VESCOSITY THAN SURUP
 
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Loren in WI
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PostPosted: Sun Nov 04, 2012 6:24 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

Most race car and pulling events use water only due to ground contamination issues. I have run water wetter in the cooling system and it will make it run about 10 degrees cooler. Speedway motors in NE sells it.
 
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rustred
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PostPosted: Sun Nov 04, 2012 7:43 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

how do you know it makes a difference? the only h.p. you would gain is if you replaced the fan with an electric one. just my own thought would be that antifreeze would have less friction going around corners than water. also antifreeze will find seep spots before water.i am talking a 50/50 mixture not pure antifreeze.
 
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John G. Hasler
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PostPosted: Sun Nov 04, 2012 7:44 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

> THERE IS LESS DRAG ON THE MOTOR THROUGH THE
> WATER PUMP GENERATED FLOW WITH WATER IT AA
> THINER VESCOSITY THAN SURUP

In that case you should run straight methanol. Or better yet, anhydrous ammonia. You may want to redesign your cooling system for the latter, though.
 
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David G
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PostPosted: Sun Nov 04, 2012 7:45 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

HP change is negligable between glycol/water. The racers use water because they dump out the hot water between races and do not encounter freezing conditions.

A 50/50 mix is the best compromise between cooling, corrosion prevention and freezing prevention. The pressure cap does more for boiling prevention then the glycol.
 
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old
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PostPosted: Sun Nov 04, 2012 8:49 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

Sorry but that is just a silly wives tail. Sort of like the one that says you gain a lot of extra HP by running with out a muffler. Ya the muffler thing does in fact boost HP a bit but so little you can not see the difference
 
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Red Dave
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PostPosted: Sun Nov 04, 2012 11:02 am    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

I've been running antifreeze mixed 50-50 with water for 40+ years and it has never been the viscosity of syrup.

Those guys must have been using something different than what is sold around here.
 
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randy hall
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PostPosted: Sun Nov 04, 2012 12:30 pm    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

i never heard of a power increase with just water but i know from experience that straight water will give you around 20% more cooling capacity than an antifreeze mix will. the surface tension of water is less than the mix.
 
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David G
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PostPosted: Sun Nov 04, 2012 6:13 pm    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

I did check the viscosity numbers, 50/50 mix has a viscosity of around 20 at freezing, and goes down to 2 at 200 degrees. Water has viscosity of about 1 within those ranges.

A thicker liquid will take more HP, but the differences in viscosity is negligible at operating temperatures.
 
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willie in mn
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PostPosted: Sun Nov 04, 2012 7:05 pm    Post subject: Re: antifreeze or water Reply to specific post Reply with quote

Good theory, but you got it hind end around bassackwards.
Back in 50s, early 60s people in warm climates such as so Tx, Fl, Az, Ca ran just a quart of antifreeze to lube water pump & in case they got a little frost.
Then with A/C becoming a popular option, they had overheating problem due to the increased cooling load. Remedy was to run 50/50 mix in everything year around.
Willie
 
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