Evans waterless coolant?
Discussion
Hi All
After noticing a slightly perished hose at the BBWF last weekend. It's time to purchase a set of silicone hoses from ACT to make sure the car is ready for its longest trip so far in September.
While I'm at it I was thinking about changing ov to Evans waterless coolant.
Has anyone any experience/opinions on this? Is it worth the expense/hassle? Are there any problems in getting all of the water out of a Wedge cooling system, heater matrix?
Someone did mention recently doing this at the Fest but I can't remember who it was I was talking to.
Cheers Karl.
After noticing a slightly perished hose at the BBWF last weekend. It's time to purchase a set of silicone hoses from ACT to make sure the car is ready for its longest trip so far in September.
While I'm at it I was thinking about changing ov to Evans waterless coolant.
Has anyone any experience/opinions on this? Is it worth the expense/hassle? Are there any problems in getting all of the water out of a Wedge cooling system, heater matrix?
Someone did mention recently doing this at the Fest but I can't remember who it was I was talking to.
Cheers Karl.
Yatesy350i said:
Hi All
After noticing a slightly perished hose at the BBWF last weekend. It's time to purchase a set of silicone hoses from ACT to make sure the car is ready for its longest trip so far in September.
While I'm at it I was thinking about changing ov to Evans waterless coolant.
Has anyone any experience/opinions on this? Is it worth the expense/hassle? Are there any problems in getting all of the water out of a Wedge cooling system, heater matrix?
Someone did mention recently doing this at the Fest but I can't remember who it was I was talking to.
Cheers Karl.
There have been loads of discussions about Evans Waterless Coolant some say it perishes Ali and not really good for the engine, it has been used on my 450SE and so far I have not seen any problems, I have been to Le Mans and got stuck in traffic through Rouen for an hour in 35 degree heat plus driving to the BBWF and got stuck in traffic both ways and no problems, I am still undecided and I will carry on using it till next service and make my mind up. I would do a search and see what you can find out After noticing a slightly perished hose at the BBWF last weekend. It's time to purchase a set of silicone hoses from ACT to make sure the car is ready for its longest trip so far in September.
While I'm at it I was thinking about changing ov to Evans waterless coolant.
Has anyone any experience/opinions on this? Is it worth the expense/hassle? Are there any problems in getting all of the water out of a Wedge cooling system, heater matrix?
Someone did mention recently doing this at the Fest but I can't remember who it was I was talking to.
Cheers Karl.
billynobrakes said:
I would do a search and see what you can find out
"Can of worms time" 
A search old threads will come up those who love it and plenty who hate it!
My personal opinion is that
phillpot said:
"Can of worms time"
A search old threads will come up those who love it and plenty who hate it!
My personal opinion is thatthousands millions of road going cars run quite happily in temperatures from sub zero to 40+ in all manner of traffic conditions on a water/anti-freeze mix quite happily (including mine).
Exactly, I was looking at it years ago but decided not to bother as you quite rightly say millions of cars run quite happy with water and they was designed to, but my 450SE came with it when I bought it and so far with no problems but I will decide what to do start of next session but for now I leaving it as isA search old threads will come up those who love it and plenty who hate it!
My personal opinion is that
Evans coolant is basically glycol or pure anti freeze.
Yes it will not boil until 190deg or so but the heat capacity is much worse than water and so for the same pump and radiator the engine will run hotter. From what I have heard it is at least 10deg so it maybe an issue on very hot days
Yes it will not boil until 190deg or so but the heat capacity is much worse than water and so for the same pump and radiator the engine will run hotter. From what I have heard it is at least 10deg so it maybe an issue on very hot days
I've never used it but in the US it's popular amongst some LS users driving those extreme dune buggy desert racers. The feature Evans seems to offer is it prevents boiling around the exhaust valve seats which is where water can boil.
Is there an Evans product that can be mixed with water?
Is there an Evans product that can be mixed with water?
batman400 said:
adam quantrill said:
If your hoses are splitting the last thing you want is to piss out 80 quids worth of snake oil on the road...
Well put....Thanks for the replies gents. Looks like I will be sticking with good old water and antifreeze for now.
Heat capacity of water = a fair amount.
Heat capacity of water being tuned into steam - absolutely massive!
That's how the Flying Scotsman worked and even our beloved nuclear reactors.
As long as the steam doesn't form an insulating blanket it will take away a massive amount of energy. Then the bubbles disappear (condense) in the cooler parts of the system.
Heat capacity of water being tuned into steam - absolutely massive!
That's how the Flying Scotsman worked and even our beloved nuclear reactors.
As long as the steam doesn't form an insulating blanket it will take away a massive amount of energy. Then the bubbles disappear (condense) in the cooler parts of the system.
The problem of using a phase change (latent heat of vapourisation) to cool anything is that you have to change back to the original phase to complete the cycle which is costly in terms of power consumption and space
The best solution is what everybody uses ie pure water + a minimum amount of additive to stop freezing and corrosion
This works perfectly well as long as all the parts of the system are functioning as intended
The best solution is what everybody uses ie pure water + a minimum amount of additive to stop freezing and corrosion
This works perfectly well as long as all the parts of the system are functioning as intended
Iv'e used Evans waterless coolant for four years on my turbo. I had an issue (for 23 years) that after any increased amount of engine load in the previous 10-15 mins pre engine shut down the coolant would boil, you could hear the first bubble then increasing to becoming nasty, I would loose 0.5 to 1 L of coolant
I've since started using Evans waterless coolant and never had an issue since.
Regards,
Chris.
I've since started using Evans waterless coolant and never had an issue since.
Regards,
Chris.
I found it interesting what Mr Chris Shirle said at out BBWF Q&A session last weekend, He added that all Wedges suffer from a common problem...."Over-heating", his prognosis was to fit alloy radiators and all your issues will be gone, oh and if you do fit an alloy rad always make sure you rubber mount or there is a possibility that the mounting eyes can fracture...
I also recall a very interesting conversation with Oliver as regards to bonnet design, His word's were..."The last bonnet design of the 280i which was also used for the early 350i was the best at reducing engine temperatures"...He then shook his head while saying "Why TVR went and fitted solid bonnets later on is beyond me"....So there is is from the people who designed and built these cars... For ultimate cooling of the TVR Wedge it is advisable to fit a late280i/ Early 350i bonnet and an alloy rad...Simples...
I also recall a very interesting conversation with Oliver as regards to bonnet design, His word's were..."The last bonnet design of the 280i which was also used for the early 350i was the best at reducing engine temperatures"...He then shook his head while saying "Why TVR went and fitted solid bonnets later on is beyond me"....So there is is from the people who designed and built these cars... For ultimate cooling of the TVR Wedge it is advisable to fit a late280i/ Early 350i bonnet and an alloy rad...Simples...
Iv'e never had overheating issues, I get hard pushed to get the temperature above 95, however I wouldn't disagree that an aluminium radiator should have a higher heat transfer capacity than that of an equivalent brass/copper item. Also wouldn't disagree about the earlier bonnets with ventilation holes.
I understand water wetter improves the thermal conductivity of the water, but believe it has no effect on the boiling point, in my instance I think it would be highly unlikely it would stop boiling in an engine which isn't running/circulating coolant.
Evans is ridiculously expensive, more so when you have to use the prep fluid to get an increased amount of original water out of the system, good thing is though it doesn't require routine changes.
I would say though that most cars with cooling systems in good order should have no need for anything other than water/antifreeze mix, as has been used for the last 100+ years.
Chris.
I understand water wetter improves the thermal conductivity of the water, but believe it has no effect on the boiling point, in my instance I think it would be highly unlikely it would stop boiling in an engine which isn't running/circulating coolant.
Evans is ridiculously expensive, more so when you have to use the prep fluid to get an increased amount of original water out of the system, good thing is though it doesn't require routine changes.
I would say though that most cars with cooling systems in good order should have no need for anything other than water/antifreeze mix, as has been used for the last 100+ years.
Chris.
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