NPG Coolant

[hiltonig]

Anyone look at using this stuff

http://www.evanscooling.com/coolants/

is it as good as it seams ?? looks like it has a few advantages but its not cheap as all good things.

[rigga]

Cant see the point myself,running the correct mix of antifreeze to water is all you need,if your cooling system has boiling over issues its down to other factors not its content,also corrosion is not an issue if the above mix is correctly maintained..... its like water wetter,cant see the point of that either,may just be me though.

[TVR_owner]

Sometimes if vehicles are taken out of their comfort zone (track use say) things that are close to the limit for this more extreme use, but cope day to day, start to struggle - cooling and braking systems on some TVRs for example (they dont all have the problem but some do).

In much the same way as upgrading brake fluid or pads is sometimes enough to resolve the extra heat problem the brakes would have as a result of track day use, water wetter and this type of product can help prevent temperature increase in the cooling system that has been caused by the engine doing more work, without upgrading rads etc. It can help resovle a marginal issue.

Water wetter works, not sure about the NPG product.

Edited by TVR_owner on Sunday 8th November 11:53

[Boosted LS1]

From what I hear it's excellent. I know some people in the US who sand race ls7's and they once had an engine overheating problem. They swear that the Evans coolant saved the engine as the datalogger recorded some mega high temps. I think it won't boil or something like that which means you won't get air pockets. I'm told Caterpillar use it to in their monster machines. Darton also recommend it highly for their MID liner conversions.

I'm certainly going to use it when I'm ready.

[slideways]

blimey Mike we we're only talking about this stuff yesterday

[Boosted LS1]

^ I had an email tonight saying that the guy in the US had been running at 265 degrees F without a seizure or any issues. This was a chevy 427 lsx Darton MID sand car racer.

[slideways]

Boosted LS1 said:

^ I had an email tonight saying that the guy in the US had been running at 265 degrees F without a seizure or any issues. This was a chevy 427 lsx Darton MID sand car racer.

sound like its worth using this stuff then.

[dvs_dave]

I guess the question you need to ask is what coolants do F1, LM cars etc. use? They'll use anything to increase the coolant system performance and efficiency as then they can use smaller radiators so creating less drag. As far as I'm aware they just use distilled water (plus the usual additives) as it has pretty much the highest specific heat capacity of any liquid.

If this non aqueous coolant is so great, why no specific mention of which competition classes use it?

I think these specialised "non-water" coolants are only advantageous if the cooling system is poorly designed/compromised and contains significant hot spots where the coolant often actually boils. You have to remember that these coolants can't actually transfer as much energy through the cooling system (approx 60% looking at the numbers) as water can, so in a decent coolant system it will not actually be as good!

Edited by dvs_dave on Tuesday 10th November 11:51

[spend]

dvs_dave said:

..I think these specialised "non-water" coolants are only advantageous if the cooling system is poorly designed/compromised and contains significant hot spots where the coolant often actually boils.

So pretty much every sand cast engine block then

[Boosted LS1]

dvs_dave said:

I guess the question you need to ask is what coolants do F1, LM cars etc. use? They'll use anything to increase the coolant system performance and efficiency as then they can use smaller radiators so creating less drag. As far as I'm aware they just use distilled water (plus the usual additives) as it has pretty much the highest specific heat capacity of any liquid.

If this non aqueous coolant is so great, why no specific mention of which competition classes use it?

Edited by dvs_dave on Tuesday 10th November 11:51

My take is that F1 will change the water almost everytime the car gets used. With the Evans coolant you probably use it for years once you've filled up. They use in dragsters a lot and I think Catterpiller use it in their heavy machinery. I don't know if anybody uses it over here as I've never seen it on sale.

Reading the info on the Evans site is interesting.

http://www.evanscooling.com/frequently-asked-quest...

Edited by Boosted LS1 on Tuesday 10th November 12:51

[450Nick]

Looks like good stuff! I think I'll be putting this in the race car... Anyone know where the best place to buy is? It's a bit pricey over here at £50ish for 4.5L, but only $31 from NPG direct in the US. Would it be cheaper to order a batch from the states then...?? Or is there a cheaper supplier in the UK?

Edited by 450Nick on Tuesday 10th November 12:42

[TVR_owner]

450Nick said:

Looks like good stuff! I think I'll be putting this in the race car... Anyone know where the best place to buy is? It's a bit pricey over here at £50ish for 4.5L, but only $31 from NPG direct in the US. Would it be cheaper to order a batch from the states then...?? Or is there a cheaper supplier in the UK?

Edited by 450Nick on Tuesday 10th November 12:42

It's going in the M Nick, I'll let you know what I can manage to get it for..

[450Nick]

TVR_owner said:

450Nick said:

Looks like good stuff! I think I'll be putting this in the race car... Anyone know where the best place to buy is? It's a bit pricey over here at £50ish for 4.5L, but only $31 from NPG direct in the US. Would it be cheaper to order a batch from the states then...?? Or is there a cheaper supplier in the UK?

Edited by 450Nick on Tuesday 10th November 12:42

It's going in the M Nick, I'll let you know what I can manage to get it for..

Great, thanks John. I haven't got the engine yet so I wouldn't have thought I'll need it for a little while, but if you find a good deal then I'd be happy to beef up your order... Probably need around 3/4 cases each I would have thought?? That's if the water capacity is anything like my Chim.

[Boosted LS1]

Where is it for sale in the UK? I guess the shipping will cost a bit as it'll be quite heavy so that needs to be considered.

[450Nick]

A quick google has revealed:

http://www.randbmotorsport.co.uk/shop/Details.asp?...

and

http://www.racestuff.co.uk/www.racestuff.co.uk/inf...

but I'm sure there are more, plus Ebay shops, though I can't get on Ebay at work...

[hiltonig]

ok for the uneducated how much would you need to order ??? whats the capacity of the chim system ?