Go Back   TeamTalk > Maintenance Tips, How-tos and Refurbishing Topics > Engine / Drive Train

Reply
 
Thread Tools Display Modes
  #201  
Old 11-05-2018, 06:29 PM
Jorski Jorski is offline
MC Devotee
 
Join Date: Jul 2004
Boat: 1993 190 with LT1
Location: Toronto, Canada
Posts: 1,508
In a Corvette this engine runs up to 228 degrees before the fans turn on
Reply With Quote
  #202  
Old Yesterday, 01:09 PM
88 PS190 88 PS190 is offline
MC Maniac
 
Join Date: Aug 2005
Boat: 1988 MC Prostar 190, 351 Ford
Location: Midwest
Posts: 4,413
Send a message via AIM to 88 PS190
Quote:
Originally Posted by Jorski View Post
In a Corvette this engine runs up to 228 degrees before the fans turn on
Just for the general knowledge bank - there is a vast difference between pressurized and open loop cooling.

Plain water boils off at 212 at sea level - less at altitude.
Pressure on that water increases the boiling temp, but to reach 228 degrees you need about 8 lbs of pressure in the system.

A corvette has both pressure (probably a 15 lb system) and Antifreeze - assuming 15 lbs and 50-50 antifreeze water mix that coolant should remain "liquid" to at least 260 degrees.

But you also have to remember - the temperature is not the temperature everywhere in the system, it is the temperature at the fan switch/coolant temperature sensor. It can be way hotter in pockets so you have to have a safety margin such that there is no world in which you reach "boiling" anywhere in the system as that boiling water doesn't cool the engine and can form air pockets leading to overheating.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 08:30 PM.


2018