JamieP Posted October 5, 2008 Share Posted October 5, 2008 Whats the point of running your water system at a higher pressure? Quote Link to comment Share on other sites More sharing options...
SteveR Posted October 5, 2008 Share Posted October 5, 2008 The coolant will be allowed to reach higher temps before boiling over. Supposedly useful under some circumstances... but I doubt it's ever necessary in the UK. I have the thinner rad in my single and don't have any issues. The high pressure rad cap will also find weak spots in your heater matrix and/or radiator before it lets any pressure out. Quote Link to comment Share on other sites More sharing options...
SteveR Posted October 5, 2008 Share Posted October 5, 2008 (edited) double-post Edited October 5, 2008 by SteveR (see edit history) Quote Link to comment Share on other sites More sharing options...
Wez Posted October 6, 2008 Share Posted October 6, 2008 Wouldnt bother with it matey, puts the cooling system under more pressure. Quote Link to comment Share on other sites More sharing options...
Jake Posted October 6, 2008 Share Posted October 6, 2008 They're great if you like changing heater matrices. Personally, I don't. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 6, 2008 Author Share Posted October 6, 2008 The way MVP sells it is saying it lowers coolant temps? how can this be? Quote Link to comment Share on other sites More sharing options...
JustGav Posted October 6, 2008 Share Posted October 6, 2008 Jamie, it WILL pop the matrix, might not do it straight away but certainly will in the long term. If you are running matrix-less, then yes perhaps it would be okay, however I reckon the strain would move from the matrix to pipes and the rad core. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 6, 2008 Author Share Posted October 6, 2008 (edited) Heater matrix aside. What im asking is what gains if any are to be had at running at a higher pressure? If any? the mvp website claims it lowers coolant temps, how can this be? Edited October 6, 2008 by JamieP (see edit history) Quote Link to comment Share on other sites More sharing options...
b_have Posted October 6, 2008 Share Posted October 6, 2008 Higher pressure = higher boiling point of the coolant. Would allow you to run more coolant temp before you dump the coolant. Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 6, 2008 Author Share Posted October 6, 2008 Higher pressure = higher boiling point of the coolant. Would allow you to run more coolant temp before you dump the coolant. Thats the way im understanding it, so saying "run a high pressure cap to keep your Supra cooler" is not true then? Quote Link to comment Share on other sites More sharing options...
b_have Posted October 6, 2008 Share Posted October 6, 2008 Thats the way im understanding it, so saying "run a high pressure cap to keep your Supra cooler" is not true then? Not true (except if you boil over with a low pressure cap and run a lap without coolant) BTW, great few laps together on Sat, wish I had a rearview cam to record your 100mph drift! Quote Link to comment Share on other sites More sharing options...
supra matt Posted October 6, 2008 Share Posted October 6, 2008 What about if you have a after market rad ? the cap wont fit so your stuck with a high pressure one! Quote Link to comment Share on other sites More sharing options...
JamieP Posted October 6, 2008 Author Share Posted October 6, 2008 Not true (except if you boil over with a low pressure cap and run a lap without coolant) BTW, great few laps together on Sat, wish I had a rearview cam to record your 100mph drift! Ok, ta. Yea that was great mate, you are a very good driver:) Quote Link to comment Share on other sites More sharing options...
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