PDA

View Full Version : Temperature gauge reading baseline w/ AC



Boglin
05-19-2014, 11:34 AM
Hey guys,

What kind of temps do you see on your temp gauge on a hot day (90F+) with the AC running? Just want to establish some kind of a baseline here.

NightFlyer
05-19-2014, 04:33 PM
With A/C off, I constantly and consistently read somewhere around 180F, even with high ambient temps and grudgingly slow (Woodward Dream and Grand Rapids Metro Cruises) stop and go traffic - a mm or two above the second (first unmarked) line on the gauge.

Sorry I can't help in regards to with the A/C on, but I haven't ever had the A/C working under my ownership of the car - hopefully that will change in few weeks :)

Bitsyncmaster
05-19-2014, 06:47 PM
When we get some 90 deg days, I will let you know but I have Eds radiator and Toby's fans. In the past I would see a little above the first line which is just a little higher than a cold day with no AC.

Boglin
05-19-2014, 09:36 PM
When we get some 90 deg days, I will let you know but I have Eds radiator and Toby's fans. In the past I would see a little above the first line which is just a little higher than a cold day with no AC.

1st line is 100 degrees. Thats pretty cool! :)

Bitsyncmaster
05-20-2014, 02:42 AM
1st line is 100 degrees. Thats pretty cool! :)

Sorry. The line at the 1/4 scale mark.

Farrar
05-20-2014, 02:04 PM
I see a range of 160-180F assuming the gauge is correct. Once it gets up to about 180, cooling fans bring it back down.

NightFlyer
05-20-2014, 06:45 PM
I see a range of 160-180F assuming the gauge is correct. Once it gets up to about 180, cooling fans bring it back down.

160F would be right on the second line on the gauge (the first unmarked line). That's almost too cool

Bitsyncmaster
05-20-2014, 06:54 PM
160F would be right on the second line on the gauge (the first unmarked line). That's almost too cool

The gauge is not a linear device. You can see the top half only indicates 220 to 260 deg. The bottom half indicates 100 to 220 deg. So what that 1/4 scale line indicates is unknown.

Actually that 1/4 scale mark is a little offset lower. I'm guessing that is the normal engine temp line.

Farrar
05-21-2014, 10:05 AM
assuming the gauge is correct...


That's almost too cool...


The gauge is not a linear device...

Looks like I need one of these:
2029

NightFlyer
05-21-2014, 02:32 PM
The gauge is not a linear device. You can see the top half only indicates 220 to 260 deg. The bottom half indicates 100 to 220 deg. So what that 1/4 scale line indicates is unknown.

Actually that 1/4 scale mark is a little offset lower. I'm guessing that is the normal engine temp line.

That's an EXCELLENT point Dave, and one that's often overlooked! I've always wondered why it wasn't linear - and I like your theory about the second line being the normal engine temp line :)

NightFlyer
05-21-2014, 02:33 PM
Looks like I need one of these

Now we're talkin! :cool:

Bitsyncmaster
06-01-2014, 08:47 PM
It was not that hot today but my temp gauge stayed "nailed" at or just below the second line on the gauge with or with the AC running. Was maybe 80 deg. F air temp. By the way my AC would pretty much hole 40 deg. F at the center vents where as just running in the garage I could only get 58 deg. F.

sedated
06-02-2014, 10:17 AM
My normal temps hold around Bitsyncmaster's with a Stage II and AC on full. That's with a 93 degree day.