andrew
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| posted on 3/12/10 at 10:07 PM |
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waterless coolant
Has anybody tried the evans waterless coolant ,, or other brands , is it anygood , does it work ,, or has anybody got their own concoctions ,,,
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snapper
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| posted on 3/12/10 at 10:42 PM |
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If you read deeper into the technical it requires a different pump and radiator.
My other thought is if F1 don't use it, it will not be needed for our vehicles.
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
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britishtrident
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| posted on 3/12/10 at 10:48 PM |
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Salt --- large pinch. OAT coolant takes a lot of beating.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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adithorp
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| posted on 3/12/10 at 10:55 PM |
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quote:
Originally posted by britishtrident
Salt --- large pinch. OAT coolant takes a lot of beating.
Can you mix salt and OAT? 
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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RazMan
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| posted on 3/12/10 at 10:58 PM |
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quote:
Originally posted by adithorp
Can you mix salt and OAT?
That's called porridge dear chap
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Simon
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| posted on 3/12/10 at 11:43 PM |
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I misread and thought you'd said EVIAN, but always preferred Buxton or tap meself
ATB
Simon
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Ninehigh
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| posted on 3/12/10 at 11:59 PM |
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Aren't F1 engines air cooled?
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gavin174
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| posted on 4/12/10 at 03:59 AM |
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F1 engines have radiators in the side pods, I think...
http://www.essexkitcarclub.com
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Ninehigh
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| posted on 4/12/10 at 04:14 AM |
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Fair enough, are they still pumping co2 or whatever it was while they pit? I remember them doing something like that to keep the engine cool while
they pit in
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Rocket_Rabbit
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| posted on 4/12/10 at 05:39 AM |
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F1 engines are liquid cooled, and have radiators in the sidepods.
The reason they stick dry ice (CO2) in is because the radiators have no fans for cooling the car whilst stationary. Said radiators are also extremely
marginal because the larger they are, the more drag they offer up thus slowing the car down.
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bimbleuk
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| posted on 4/12/10 at 06:05 AM |
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Hi
Yes I've used it in several cars with no issue but some definite advantages. The initial cost is high but if your cooling system is functining
correctly then it will last as long as the engine. Doesn't degrade the same way as conventional aqeous based coolant. I didn't have any
problems with using OEM water pumps.
The cooling system works at a very low pressure and I could take the cap off any time with no risk from hot coolant escaping. My Striker with a 270BHP
supercharged engine always ran with stable temps and was always very quiet after a hard run no tinking or bubbling from heat soak.
One good example of use in an extreme environment was with the Fensport cars as they used to run 600BHP+ in their demo car. They were suffering local
boiling in the rad as it was so close to the turbo to the point that they burst a couple of rads. I suggested using the non-aqeuous coolant and they
were inpressed enough with the results that they started to sell it.
The other big advantage is it's environmentally friendly and non-toxic.
[Edited on 4-12-10 by bimbleuk]
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Ninehigh
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| posted on 4/12/10 at 06:23 AM |
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Sweet, so if I drained my Mondeo radiator I could just pour that stuff in and forget about it? (Remembering to regularly check the level and top up as
needed of course)
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britishtrident
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| posted on 4/12/10 at 07:43 AM |
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quote:
Originally posted by adithorp
quote:
Originally posted by britishtrident
Salt --- large pinch. OAT coolant takes a lot of beating.
Can you mix salt and OAT?
Only on porridge :-)
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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andrew
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| posted on 4/12/10 at 10:47 AM |
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its not to use in a seven its for racing on shale where when its wet the radiator eventually gets so full of it that no air can pass through it , if
you put deflector on it works but temps go up too much and it can boil , was wondeing if the evans stuff would help ,,
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matt_gsxr
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| posted on 4/12/10 at 11:01 AM |
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Here's some theory:
It seems that the key benefit of the evans coolant is that your engine isn't limited in temperature by the arbitrary temperature of 100degC (or
thereabouts) and so can run much hotter. The heat capacity of the coolant is lower than water, but as fluid is much hotter it dissipates more heat in
from the radiator.
http://www.evanscooling.com/fuel-efficiency/
Running at higher temperatures has thermodynamic advantages and may benefit in terms of clean combustion, and lower cooling fan requirements (low
speed overheating is only a problem really for the coolant, not for the rest of the engine).
I don't think this logic actually works in a high-performance vehicle. In that case we want the cylinder head to be relatively cool so as to
pack as much air in and to allow high compression ratios without detonation. Running at higher temperatures would not favour this, and the lower heat
capacity of the coolant would require higher coolant flow rates to compensate. Hence why F1 don't use it.
Matt
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oadamo
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| posted on 4/12/10 at 11:07 AM |
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i thought that all fluids contain water other then fuels so what would this stuff be made from.
adam
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britishtrident
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| posted on 4/12/10 at 12:26 PM |
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Most likely one of the glycols
Higher boiling point isn't the advantage it appears as micro boiling in the boundary layer in the coolant on the outside of the cylinder liner
actually aids heat transfer and improves cooling.
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bimbleuk
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| posted on 4/12/10 at 12:59 PM |
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I used an 87 deg thermostat my engine didn't run any higher than normal. My engine was 10.5:1 CR with 1 bar of boost with no evidence of
detonation when mapping or on the road. So I can only go on what I observed from using it for 2 years in that configuration.
[Edited on 4-12-10 by bimbleuk]
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matt_gsxr
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| posted on 4/12/10 at 05:59 PM |
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bimble,
sounds like your radiator and pump are excellent already.
I guess the advantage of no local boiling after turning off is a benefit, but having a pressurized cooling system isn't a problem that I worry
about. Have you always found this stuff to be equally good at cooling in all the cars you have run it in, or has the temperature sometimes been
higher with it?
Matt
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matt_gsxr
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| posted on 4/12/10 at 05:59 PM |
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bimble,
sounds like your radiator and pump are excellent already.
I guess the advantage of no local boiling after turning off is a benefit, but having a pressurized cooling system isn't a problem that I worry
about. Have you always found this stuff to be equally good at cooling in all the cars you have run it in, or has the temperature sometimes been
higher with it?
Matt
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bimbleuk
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| posted on 5/12/10 at 08:23 AM |
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quote:
Originally posted by matt_gsxr
bimble,
sounds like your radiator and pump are excellent already.
I guess the advantage of no local boiling after turning off is a benefit, but having a pressurized cooling system isn't a problem that I worry
about. Have you always found this stuff to be equally good at cooling in all the cars you have run it in, or has the temperature sometimes been
higher with it?
Matt
There is pressure in the system but only about 3PSI. I used it in an MR2 turbo and didn't notice particularly high temps in that in normal use.
In the Striker with an 87 deg thermostat the temps would be around 90deg on the Smiths gauge I was using. I used the common Polo rad which had an
intercooler mounted in front of it. I made up cowling to trap air in front and had side vents on the engine bay so the air flow was decent.
So yes on the Strker I didn't use it to cure an issue but more from preference from previous experience on the MR2. My MR2 did suffer some
cooling issues due to being modified. The Evans coolant was part of the solution to getting stable temps as the car was used for track days and drag
racing.
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britishtrident
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| posted on 5/12/10 at 08:42 AM |
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Propylene glycol ------ http://en.wikipedia.org/wiki/Propylene_glycol
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