Antifreeze make you slower.

[95Vert]

Another guy posted this info in another board, check it out, pretty interesting.

I read a book on 5.0 performance and found some interesting things that i wonder. the article said that using pure water and waterwetter from redline can help you gain a little bit more push. water has 2.5 greater thermal conductivity than glycol-based coolants. water can transfer twice as much heat out of they system compared to using a 50:50 mix. test were done to prove this tech that water would cool metal down faster that antifreeze. 304 degrees to 250 degrees, water and waterwetter took 3.2 seconds.water alone took 3.7 .a 50:50 mix took 10.2 .pure antifreeze took 21 seconds. raising the temp of cylinder heads will be a loss of power. the article also goes into boiling over saying if you use a 23lb. radiator cap the boiling point will rise to 265 degrees which equals to 50:50 mix.

I think its interesting. i ran pure water once for a week and my car didn't over heat like most people would think. Now i know about waterwetter but have never tried it. im thinking next summer i will give it some thought. the book is called "Mustang: 5.0 Liter performance Handbook" by peter C. Sessler. the book is for foxbody mustangs.

 

[BlackVert]

hmmm very interesting

 

[jared_blown5.0]

redline waterwetter is good stuff i run that in my 2 race bikes(motocross) and in my car. You can pick it up at autozone its like $5. ...
-Jared

 

[HISSIN50]

Yep. Antifreeze is for corrosion protection, lubrication and freeze portection. Water absolutely transfers heat better. Each PSI in the system raises the effective BP ~3*F (for those not wanting to do math).

If running mostly water and an additive, do flush the system more often. And only distilled water should be used.

I would still run atleast 25% coolant in about any system (unless you're at the track and cant have coolant). If the car overheats with that 25*F EG in it, there's another issue.

 

[Stanger007]

Antifreeze is for corrosion protection, lubrication and freeze protection. Water absolutely transfers heat better.

+1 - I run an 80/20 mix down here in the South - noticable temperature drop vs a 50/50 mix.

 

[95Vert]

Exxon Pete wrote:
I think Mike is on the money here, antifreeze has more than one job in the cooling system. First it is used to inhibit rust and corrosion in the cooling system, and lubricate the water pump. Then it is used to add to the boiling point of plain water, and better the freezing point as well. But don't forget that on a late model fuel injected automobile you also have a bias voltage to be concerned with, the fuel injection system reads the O2 sensors when in closed loop opoeration and adjusts fuel/air mixture accordingly. If you think about it the cooling system with water circulating through it and a charging system to recharge a battery and run accessories you also create an alkaline charge in the radiator. This alkaline charge is opposite polarity of an electrolytic battery which is what we use as a battery in our cars today. This charge changes the base bias voltage of the computer fuel injection system. Antifreeze helps to keep the balance and keep the alkaline charge to a minimum. If anyone has questions please let me know I will happily explain further.