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914World.com _ 914World Garage _ hot summer days

Posted by: minnesota loon Jul 6 2008, 10:44 AM

Does the engine run cooler at high rpms or low rpms? My car runs just below the red line on the temp gauge. About in line with the m on the word temp. It stays fairly consistent at that point.

Posted by: toon1 Jul 6 2008, 11:03 AM

HIgher RPM's, to a point. 3200-3400 seems to be the sweet spot.

I don't notice huge diferences in the engine temps between summer and winter.

Although summertime temps will not stablize as easy under load than winter. For all other normal driving conditions, they are about the same.

Posted by: hcdmueller Jul 7 2008, 01:35 AM

The temp guage that came with the car is for oil temp. My 76 always seemed to be close to the same temp as yours. From what I have heard the 75 and 76 years tend to run a little hotter.

Posted by: 6freak Jul 7 2008, 08:48 AM

QUOTE(hcdmueller @ Jul 7 2008, 12:35 AM)

The temp guage that came with the car is for oil temp. My 76 always seemed to be close to the same temp as yours. From what I have heard the 75 and 76 years tend to run a little hotter.

Higher revs builds more heat!! plain and simple.your running hot

Posted by: ericread Jul 7 2008, 08:53 AM

OK, we have two opinions here. Toon1 says that 3200-3400 rpm is the sweet spot. My 74 2.0L FI system seems to run coolest at between 3200 and 3400 rpm also.

ncdmueller; You mention that higher revs generate additional heat. Do you consider 3400 rpm "higher revs" or are you talking about revs over 3500 rpm?

Anybody else want to chime in here?

Eric Read

Posted by: Root_Werks Jul 7 2008, 09:39 AM

There are reeeeeealy tiny little tiny small little numbers on your temp gauge just out of sight unless you look at it from the side. Get a flash light and have a look. Most find the begining of the red section is only 240 degrees.

Oil doesn't even boil out moister until it hits 210 which is where you want it to run.