best coolant/water/water wetter mixture?
05-04-2006, 03:04 PM
#1
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Join Date: Sep 2002
Location: Tallahassee, FL
Posts: 5,425
I haven't drained my coolant in awhile, I have autocross this weekend, and I know it's going to over heat like a bitch (it's been creeping up in traffic). What's the best mixture for cooling? It's hot here, I anticipate it hitting 90 this weekend, no worry of freezing. Mainly, does our car need coolant/antifreeze for anti-corrosion, or lubricating the pump? I've heard just distilled water and water wetter cools best, but I don't know where I got that from.
I also need to put my radiator panels back on, I'll get to that as well.
I also need to put my radiator panels back on, I'll get to that as well.
05-04-2006, 04:19 PM
#5
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Join Date: Jul 2002
Posts: 2,315
put your radiator shrouds on! if you have to compensate with additives to prevent over heating your cooling system isn't working properly and/or is being over worked. ethelyne glycol is used for all those things you said, but it also raises boiling point. so make sure to mix at least 30% or so. try to figure out what the problem is before you run the risk of overheating.
05-04-2006, 10:27 PM
#7
Senior Member
Join Date: Aug 2005
Location: Freeport FL
Posts: 381
Water has mad cooling properties glycol does not nor does water wetter.
Water wetter works by dissipating the water and allowing it to farther cool more.
Glycol keeps freezing points of water lower and raises the boiling point slightly. But so does your pressure cap.
@ 10psi 33% antifreeze mix boils at ~120*C
@ 10psi 55% antifreeze mix boils at ~125*C
@ 15psi 33% antifreeze mix boils at ~125*C
@ 15psi 55% antifreeze mix boils at ~129*C
The only time I run 30% glycol is in the winter. And I only run it in summer to lubricate the water pump.
Water wetter works by dissipating the water and allowing it to farther cool more.
Glycol keeps freezing points of water lower and raises the boiling point slightly. But so does your pressure cap.
@ 10psi 33% antifreeze mix boils at ~120*C
@ 10psi 55% antifreeze mix boils at ~125*C
@ 15psi 33% antifreeze mix boils at ~125*C
@ 15psi 55% antifreeze mix boils at ~129*C
The only time I run 30% glycol is in the winter. And I only run it in summer to lubricate the water pump.
05-06-2006, 11:37 PM
#8
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Join Date: May 2006
Location: Florida heat sucks for rotarys
Posts: 20
here in FL I run 20% coolant/antifreeze
80% distilled water
one bottle of water wetter
That seem to be the absloute best mixture for our cars
But... I also npt fitting block off for the water pump and gutted the thermostat
no radiator shroud but I have a electric fan that doesn't do half as good as the
stock fan. none the less I got no more overheating problems
also block off the coolant hoses going to the intake manifold
80% distilled water
one bottle of water wetter
That seem to be the absloute best mixture for our cars
But... I also npt fitting block off for the water pump and gutted the thermostat
no radiator shroud but I have a electric fan that doesn't do half as good as the
stock fan. none the less I got no more overheating problems
also block off the coolant hoses going to the intake manifold
05-07-2006, 10:10 AM
#9
Senior Member
Join Date: Aug 2005
Location: Freeport FL
Posts: 381
Originally Posted by FutantFC3s' post='817747' date='May 6 2006, 11:37 PM
But... I also npt fitting block off for the water pump and gutted the thermostat
no radiator shroud but I have a electric fan that doesn't do half as good as the
stock fan. none the less I got no more overheating problems