jagman Posted May 12, 2007 Share Posted May 12, 2007 How many on here are using anti freeze,if so how much? Quote Link to comment Share on other sites More sharing options...
AndyT Posted May 12, 2007 Share Posted May 12, 2007 Don't know. Heard some people use a 50 -50 mix but seems excessive. Do know the anti freeze prevents internal corrosion. Gotta be done then. Quote Link to comment Share on other sites More sharing options...
jagman Posted May 12, 2007 Author Share Posted May 12, 2007 50/50 mix is a factory determined mixture on a stock engine,did you know anti freeze has a far worse thermal capablility than water? Quote Link to comment Share on other sites More sharing options...
edge Posted May 12, 2007 Share Posted May 12, 2007 The toyota red stuff comes pre mixed. Quote Link to comment Share on other sites More sharing options...
jagman Posted May 12, 2007 Author Share Posted May 12, 2007 The reason for my post ; extracting more and more power from the Supra is a favourite topic, yet nothing much is posted on coolant. more power = more heat fmic fitting = less cooling some go to the expense of fitting more efficient aftermarket radiators but coolant hardly mentioned, PURE water is the best coolant it has a far better heat transfer rate than anti freeze straight water is about twice the heat extraction than a 50/50 mix if you ran pure anti freeze you engine would run hotter!!!! why do not more people use water wetter in place of anti freeze as a corrosion inhibitor and lubricant for the water pump? especially this time of year and if drag racing? Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 12, 2007 Share Posted May 12, 2007 why do not more people use water wetter in place of anti freeze as a corrosion inhibitor and lubricant for the water pump? especially this time of year and if drag racing? Because I'm lazy and can't be bothered swapping from one to the other and back again before and after winter Also because I'm not having any cooling problems. Stock rad seems to be ok. I'll reconsider if 500hp makes it too warm! Quote Link to comment Share on other sites More sharing options...
Lewis Posted May 12, 2007 Share Posted May 12, 2007 Because I'm lazy and can't be bothered swapping from one to the other and back again before and after winter Also because I'm not having any cooling problems. Stock rad seems to be ok. I'll reconsider if 500hp makes it too warm! You don't change twice a year anyway? I changover 4 times a year generally. Quote Link to comment Share on other sites More sharing options...
Glosphil Posted May 12, 2007 Share Posted May 12, 2007 Does this mean I could of topped up with water rather than spend 12 quid on a bottle of anti freeze? lol Quote Link to comment Share on other sites More sharing options...
edge Posted May 12, 2007 Share Posted May 12, 2007 Ok a couple more questions. - Doesnt antifreeze play a major part in the fight against corrosion with all the different metals that are in the engine? - What is this water wetter? Quote Link to comment Share on other sites More sharing options...
jagman Posted May 12, 2007 Author Share Posted May 12, 2007 water wetter inhibits corrosion,and prevents hot spots in engine the same as anti freeze -distilled water also helps-but ww is no good in freezing conditions Quote Link to comment Share on other sites More sharing options...
JustGav Posted May 12, 2007 Share Posted May 12, 2007 I've used water wetter before, does work VERY well, however it would mean swapping coolants during seasons. Helps keep the engine cool. Quote Link to comment Share on other sites More sharing options...
jagman Posted May 12, 2007 Author Share Posted May 12, 2007 500 bhp produces a lot of heat energy ,more so than a 300 bhp engine the extra heat must go somewhere out the exhaust,into the oil system,engine bay,and water system =hence the fitment of oil coolers and upgraded radiators 500bhp is also not cheap to achieve ,so why wouldnt you protect your "investment" with a simple change to the anti freeze during the summer - or reducing the content during the winter? "the stock rad seems ok" based on the water temp gauge I guess.what would the oil temp be doing? if the water system is at its max capacity? Quote Link to comment Share on other sites More sharing options...
Ian C Posted May 12, 2007 Share Posted May 12, 2007 T67 single turbo, big Blitz FMIC (ducted), stock original radiator, no overheating problems Oil temps don't get much past 105degC. Oh and I use Toyota red coolant, always have. I change it if I have to drain it for other engine work and that's it. I'll worry about overheating when it overheats Maybe the reverse vented louvres in the bonnet actively suck hot air out the engine bay though, it's a seriously low pressure area. Hmmm. -Ian Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 12, 2007 Share Posted May 12, 2007 "the stock rad seems ok" based on the water temp gauge I guess.what would the oil temp be doing? My array of K type thermocouples will tell me what is going on Once I fit them all.... not a task I'm looking forward to! Quote Link to comment Share on other sites More sharing options...
Kranz Posted May 12, 2007 Share Posted May 12, 2007 Oil temps don't get much past 105degC. So you've still got a 20 degree safety margin. No worries Quote Link to comment Share on other sites More sharing options...
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