Coolant system problem
Thread Starter
Burning Brakes
Joined: Apr 2007
Posts: 980
Likes: 1
From: Des Moines Iowa
Coolant system problem
I just had some major mods done along with 160* stat. I drove all the way home..... 300 + mi. at 70-80 mph with 90 deg outside temps and coolant temps at 175-180*
The next day with 90*+ temp I was out pushing it a bit harder on some near by country roads and the cooling system not going much over 205*. Got back in town and made a stop with the car still running for less than 10 minuts and the temps got to 240-245* and started out the spill tube.
After getting it cooled down and adding new coolant that I lost. I did a test run on the road for an easy 10-15 miles and letting it idle 2 different times for 15 minuts at 85* OD temps and it stays in the 180-185* coolant temp range.
My Question is?
Should I look at changing the stat out now just to be safe, could it have been an air pocket after all this drive time on it or do I just keep an eye on it for awhile.
At what temps does the fan come on stock and if it has a tune on it for the 160* stat what should it be set at .
The next day with 90*+ temp I was out pushing it a bit harder on some near by country roads and the cooling system not going much over 205*. Got back in town and made a stop with the car still running for less than 10 minuts and the temps got to 240-245* and started out the spill tube.
After getting it cooled down and adding new coolant that I lost. I did a test run on the road for an easy 10-15 miles and letting it idle 2 different times for 15 minuts at 85* OD temps and it stays in the 180-185* coolant temp range.
My Question is?
Should I look at changing the stat out now just to be safe, could it have been an air pocket after all this drive time on it or do I just keep an eye on it for awhile.
At what temps does the fan come on stock and if it has a tune on it for the 160* stat what should it be set at .
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
I just had some major mods done along with 160* stat. I drove all the way home..... 300 + mi. at 70-80 mph with 90 deg outside temps and coolant temps at 175-180*
The next day with 90*+ temp I was out pushing it a bit harder on some near by country roads and the cooling system not going much over 205*. Got back in town and made a stop with the car still running for less than 10 minuts and the temps got to 240-245* and started out the spill tube.
After getting it cooled down and adding new coolant that I lost. I did a test run on the road for an easy 10-15 miles and letting it idle 2 different times for 15 minuts at 85* OD temps and it stays in the 180-185* coolant temp range.
My Question is?
Should I look at changing the stat out now just to be safe, could it have been an air pocket after all this drive time on it or do I just keep an eye on it for awhile.
At what temps does the fan come on stock and if it has a tune on it for the 160* stat what should it be set at .
The next day with 90*+ temp I was out pushing it a bit harder on some near by country roads and the cooling system not going much over 205*. Got back in town and made a stop with the car still running for less than 10 minuts and the temps got to 240-245* and started out the spill tube.
After getting it cooled down and adding new coolant that I lost. I did a test run on the road for an easy 10-15 miles and letting it idle 2 different times for 15 minuts at 85* OD temps and it stays in the 180-185* coolant temp range.
My Question is?
Should I look at changing the stat out now just to be safe, could it have been an air pocket after all this drive time on it or do I just keep an eye on it for awhile.
At what temps does the fan come on stock and if it has a tune on it for the 160* stat what should it be set at .
Safety Car
Joined: May 2000
Posts: 4,827
Likes: 352
From: Albuquerque NM
Sounds like you haven't reset the fan to come on sooner and at higher percentages. You really need to if you want full benefit of the 160. I put mine at 15% @ 192, ramping up to 90% by 198. It doesn't ever get over 205 now.
Le Mans Master
Joined: Dec 2002
Posts: 7,588
Likes: 6
From: Montreal Qc
with both of these posts...your problem was likely air in the system in the first place, and having the fan on temps would be a good idea. 
