This is topic Lowering Octane requirement. in forum Tech Talk at Northern California Ford Owners  .


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Posted by 93PONY (Member # 60) on :
 
By Getting that HEAT out of the Heads!

The easy way:
Lower the antifreeze & add more water. A typical 50/50 mix will raise cylinder head temps by ~45 degrees compared to water alone.
Antifreeze is 2.5 times slower at absorbing & dissipating heat than water.

Typically you can run ~3 octane less & bump up timing a few degrees when using straight water over a 50/50 mix. Resulting in MORE POWER!

Of course, I wouldn't recomend running straight water during the cold season.
 
Posted by st5150 (Member # 51) on :
 
I'm afraid to ask..... where did you get this pseudo 'tech' from?
 
Posted by 93PONY (Member # 60) on :
 
Books....
Read for yourself:

http://www.redlineoil.com/redlineoil/wwti.htm

[ June 15, 2002, 04:32 AM: Message edited by: 93PONY ]
 
Posted by youl luz (Member # 53) on :
 
The nice thing about running straight water is when it starts to rust out everything in your cooling system.. The deposit's that build up in your radiator eventually clog it and no cooling goes on.Also, Water is not an effective lubricant for the waterpump bearing/seal and that will burn out too.. Ask me how I know.. LOL
 
Posted by 93PONY (Member # 60) on :
 
quote:
Originally posted by youl luz:
The nice thing about running straight water is when it starts to rust out everything in your cooling system.. The deposit's that build up in your radiator eventually clog it and no cooling goes on.Also, Water is not an effective lubricant for the waterpump bearing/seal and that will burn out too.. Ask me how I know.. LOL
Yep, there are drawbacks to running straight water. Even in a climate that never freezes.

My plan is 2-3 quarts of antifreeze, 2 bottles of water wetter & the rest water.
Water wetter IS an effective lubricant & inhibits corrosion better than antifreeze. They recomend one 12oz bottle for a 15qt system.
 
Posted by rob (Member # 50) on :
 
the high specific heat of H2O is very helpful, both on and off the track!
 
Posted by 2000BlackGT (Member # 283) on :
 
water helps me when I'm thirsty at the track
 
Posted by John91coupe (Member # 18) on :
 
FWIW, I haven't run antifreeze for 10 years in several different engine combinations. Straight water and 2 bottles of Water Wetter seems to be the best "formula". Water Wetter has both a rust inhibitor and pump bearing lubricant in it. No problems with either rust or pump bearings yet. Motor stays pretty cool also, about 185 on the street and 192 right after a quarter mile run.
 
Posted by 93PONY (Member # 60) on :
 
quote:
Originally posted by John91coupe:
FWIW, I haven't run antifreeze for 10 years in several different engine combinations. Straight water and 2 bottles of Water Wetter seems to be the best "formula". Water Wetter has both a rust inhibitor and pump bearing lubricant in it. No problems with either rust or pump bearings yet. Motor stays pretty cool also, about 185 on the street and 192 right after a quarter mile run.
Cool! You're the first I've run accross that's done that. There's a lot to be said (performance wise) for a good cooling system setup. My only concern is freezing with the water/water wetter setup. That's the ONLY reason I'll through in a little antifreeze. Even though she sits in the garage, I'd hate to go out to a frozen block on a chilly January morning.
 
Posted by PunkINa5.SLOW (Member # 10) on :
 
quote:
Originally posted by 93PONY:
quote:
Originally posted by John91coupe:
FWIW, I haven't run antifreeze for 10 years in several different engine combinations. Straight water and 2 bottles of Water Wetter seems to be the best "formula". Water Wetter has both a rust inhibitor and pump bearing lubricant in it. No problems with either rust or pump bearings yet. Motor stays pretty cool also, about 185 on the street and 192 right after a quarter mile run.
Cool! You're the first I've run accross that's done that. There's a lot to be said (performance wise) for a good cooling system setup. My only concern is freezing with the water/water wetter setup. That's the ONLY reason I'll through in a little antifreeze. Even though she sits in the garage, I'd hate to go out to a frozen block on a chilly January morning.
Hey man I do it too. Havent been doing it for as long as John but that is what I use too.

Ask anyone whos car I put together.

No probs yet.
 
Posted by shade-tree (Member # 298) on :
 
I run straight water + water wetter.
Like Rob said, the specific heat of H20 is why it is so effective at removing heat.

now, I'd be careful about the +3 octane difference effectively, but the heat removal idea (vs. higher concentrations of antifreeze) is sound.
 
Posted by sic91sleeper (Member # 779) on :
 
Man I use a bottle of the Redline water wetter, a little bit of antifreeze, and then the rest water with a flex-a-lite reverse rotation fan and the stock radiator and pump and my needle on the temp gauge rarley jumps above the second line. [Smile]

Have any of you tried the Super coolant that is made by NOS??? What do you think of it??
 




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