Evans Waterless coolant
Discussion
I recently heard a story about a hill climb car using the stuff that caught fire after a leak in the cooling system, and the insurance would not pay out as it was supposed to be using water! Anyway anyone thinking of trying to run a Rover V8 engine hotter than normal is asking for trouble as the liners are pushed into the block at relatively low temperature,( an interference fit) and get near it and the liners can move, trashing the engine.
Hi,
i've looked through all the posts on this and am a bit concerned that no-one has linked to the reply from the company about the engine fire.
so here it is: http://www.pistonheads.com/gassing/topic.asp?h=0&a...
i am considering this myself in the Sag. i will be taking her to Monza this year and the thought of high altitude mountain passes and the hot Southern European climate does not appeal.
the main problem i have is that most of the time, living in Scotland, i have the exact polar opposite problem... literally. warming the car up has almost become an art form. sometimes i can reach my destination before ever seeing 40 degrees in the oil temp.
at £400 for contents, labour and vat, it might be a sensible option to preserve the longevity of the Sag. At £400 there might be alternatives that have a bigger effect on the cooling, but i doubt many of those will also help to preserve the innards
i've looked through all the posts on this and am a bit concerned that no-one has linked to the reply from the company about the engine fire.
so here it is: http://www.pistonheads.com/gassing/topic.asp?h=0&a...
i am considering this myself in the Sag. i will be taking her to Monza this year and the thought of high altitude mountain passes and the hot Southern European climate does not appeal.
the main problem i have is that most of the time, living in Scotland, i have the exact polar opposite problem... literally. warming the car up has almost become an art form. sometimes i can reach my destination before ever seeing 40 degrees in the oil temp.
at £400 for contents, labour and vat, it might be a sensible option to preserve the longevity of the Sag. At £400 there might be alternatives that have a bigger effect on the cooling, but i doubt many of those will also help to preserve the innards
Hoover. said:
We still use Evans and will continue to do so. We had several engine failures due to detonation before using it, and none since. I think that speaks volumes. There is a comprehensive review of it here www.norosion.com/evanstest.htm
Apparently it does corrode aluminium and as it's heat capacity is only 60% of water, the engines runs hotter. Add to its viscosity being higher most water pumps are working outside of their normal range. Interesting read.
Apparently it does corrode aluminium and as it's heat capacity is only 60% of water, the engines runs hotter. Add to its viscosity being higher most water pumps are working outside of their normal range. Interesting read.
t. We still love H20 and antifreeze!johnbear said:
There is a comprehensive review of it here www.norosion.com/evanstest.htm
Apparently it does corrode aluminium and as it's heat capacity is only 60% of water, the engines runs hotter. Add to its viscosity being higher most water pumps are working outside of their normal range. Interesting read.
I'll see your comprehensive review and raise you an even longer rebuttal... Apparently it does corrode aluminium and as it's heat capacity is only 60% of water, the engines runs hotter. Add to its viscosity being higher most water pumps are working outside of their normal range. Interesting read.
http://meteormotorsport.files.wordpress.com/2014/0...
Woah- got to love all that skirting around the facts, sounds like a political speech.
So whats the advantage when:
Water works just fine with regular antifreeze.
Its less viscose so flows better to keep pump load down.
Its heat transfer abilty is far better.
You dont need to spend a fortune removing water from the system
No one in their right mind would want to run an aluminium RV8 engine hotter than needs be.
You can top up your system with water if you get a leak.
"The engines produce more power and ecomnomy when running hotter" has no basis, or it would have been employed in general by more modern engines to achieve better MPG- yet we still run below 100'C
Apart from that Im sure its great stuff.
So whats the advantage when:
Water works just fine with regular antifreeze.
Its less viscose so flows better to keep pump load down.
Its heat transfer abilty is far better.
You dont need to spend a fortune removing water from the system
No one in their right mind would want to run an aluminium RV8 engine hotter than needs be.
You can top up your system with water if you get a leak.
"The engines produce more power and ecomnomy when running hotter" has no basis, or it would have been employed in general by more modern engines to achieve better MPG- yet we still run below 100'C
Apart from that Im sure its great stuff.
phillpot said:
Seems like its mostly extracts from the first article? Hadn't seen the bit about the LM car though...I can't really see any benefit of the Evans stuff - certainly nothing that outweighs the cost/hassle,
Hammer looking for nail?
blitzracing said:
Woah- got to love all that skirting around the facts, sounds like a political speech.
So whats the advantage when:
Water works just fine with regular antifreeze.
Its less viscose so flows better to keep pump load down.
Its heat transfer abilty is far better.
You dont need to spend a fortune removing water from the system
No one in their right mind would want to run an aluminium RV8 engine hotter than needs be.
You can top up your system with water if you get a leak.
"The engines produce more power and ecomnomy when running hotter" has no basis, or it would have been employed in general by more modern engines to achieve better MPG- yet we still run below 100'C
Apart from that Im sure its great stuff.
You're with the guys who have just discovered the blower albeit it 20 years behind the times lol.So whats the advantage when:
Water works just fine with regular antifreeze.
Its less viscose so flows better to keep pump load down.
Its heat transfer abilty is far better.
You dont need to spend a fortune removing water from the system
No one in their right mind would want to run an aluminium RV8 engine hotter than needs be.
You can top up your system with water if you get a leak.
"The engines produce more power and ecomnomy when running hotter" has no basis, or it would have been employed in general by more modern engines to achieve better MPG- yet we still run below 100'C
Apart from that Im sure its great stuff.
It seems to me that evans might be a godsend for engines that have a fundamental cooling issue .. but for 99.9% of people it's just not needed.
Having seen an engine run perfectly happily for 2 race seasons grenade itself after changing to evans (coincidence or not?) I wouldn't have it anywhere near any of my cars.
Having seen an engine run perfectly happily for 2 race seasons grenade itself after changing to evans (coincidence or not?) I wouldn't have it anywhere near any of my cars.
spitfire4v8 said:
Having seen an engine run perfectly happily for 2 race seasons grenade itself after changing to evans (coincidence or not?) I wouldn't have it anywhere near any of my cars.
Why don't you tell us if it was coincidence or not? You give no indication of the nature of the failure or what the cause was - except to infer that it was down to the Evans coolant.What symptoms were evident before the engine failed? Was it running over normal temperature? Was it over-revved? What actually failed? Was it related to temperature, lack of lubricant, mechanical failure or ingestion of debris?
If the failure was temperature related then say so. Or have you not even stripped the engine down to understand what caused it to fail and your comments are pure speculation?
It's not my engine so I didn't take it to bits. I have no idea if it's coincidence or not (hence the question mark in my original post) .. but as I said, I wouldn't take the risk of changing my engines to waterless when they seem to be perfectly ok as they are. I appreciate you had all sorts of issues with your rebuilt engines and waterless has sorted that for you, but seems like a sticking plaster over a flaw in that case, though I appreciate I don't have much info about what your failures actually were other than what you've posted. I'm happy you found a fix, it's not for me though .. my cars don't have cooling issues.
spitfire4v8 said:
It's not my engine so I didn't take it to bits. I have no idea if it's coincidence or not (hence the question mark in my original post) .. but as I said, I wouldn't take the risk of changing my engines to waterless when they seem to be perfectly ok as they are. I appreciate you had all sorts of issues with your rebuilt engines and waterless has sorted that for you, but seems like a sticking plaster over a flaw in that case, though I appreciate I don't have much info about what your failures actually were other than what you've posted. I'm happy you found a fix, it's not for me though .. my cars don't have cooling issues.
Its absolutely fine to say you don't like the stuff and wouldn't have it in your cars - but your comment about the race engine destroying itself has no bearing on the matter unless it was linked to the coolant - which you admit you have no idea on.As for my engines I would say just one issue that was not diagnosed immediately so reoccurred - I had an problem with the cylinder head vent pipes on a used LS6 and suffered detonation as a result. I didn't use Evans with that engine.
I did choose to use it with a subsequent LS3 (which has improved coolant paths over the LS6) but not because I had a fundamental cooling issue, rather there were occasions when I couldn't guarantee effective cooling: e.g. safety cars running very slowly or being held on the grid for a prolonged period. In those instances I felt that Evans would help safeguard my engine if it ran overly hot. More an insurance policy than a sticking plaster.
teamHOLDENracing said:
spitfire4v8 said:
Having seen an engine run perfectly happily for 2 race seasons grenade itself after changing to evans (coincidence or not?) I wouldn't have it anywhere near any of my cars.
Why don't you tell us if it was coincidence or not? You give no indication of the nature of the failure or what the cause was - except to infer that it was down to the Evans coolant.What symptoms were evident before the engine failed? Was it running over normal temperature? Was it over-revved? What actually failed? Was it related to temperature, lack of lubricant, mechanical failure or ingestion of debris?
If the failure was temperature related then say so. Or have you not even stripped the engine down to understand what caused it to fail and your comments are pure speculation?
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