Is there anything wrong with this temperature reading?

biosurfer1 · 06-20-2005, 11:52 AM

after driving for a while, the picture is where my temperature reading is usually, sometimes a bit higher but never in the red...my question is that is this normal? should it be lower or am i ok? my gauge doesnt have any numbers so i really have no clue what is acceptable (although i'm sure red isnt good)...ps.s, sorry for the blurry camera phone pic, but you get the idea..

randywebb · 06-20-2005, 12:08 PM

it's all blurry - that's the problem!

No - that is exactly where it should be. Check the owner's manual.

Rick Lee · Rick Lee's Garage

Looks like the 220-230 deg. range. I'd worry if it was like this during hwy. driving, but it's probably normal for sitting in traffic or running at the track on a hot day. Spend the $70 and get the numerical gauge upgrade.

fireant911 · 06-20-2005, 02:27 PM

My SC never ran at that temperature even with these hot Alabama summers. I did replace my factory gauge/sender with the numerical gauge/sender from Pelican. I'd buy or borrow a infrared temp gauge and 'shoot' the temperature sender area to verify (I bought a Craftsman multimeter with a built in infrared temperature gauge which I have been extremely pleased with).

bigchillcar · bigchillcar's Garage

i second rick lee...my '74 has the graduated gauge and runs 230 at that point on the gauge. i'll see 230 if i'm running 75 mph at 90 degrees or more..been doing it for years and i don't have an aux oil cooler (not that i don't desire one).
ryan

Sumotang · Sumotang's Garage

Quote:

Originally posted by biosurfer1
after driving for a while, the picture is where my temperature reading is usually, sometimes a bit higher but never in the red...

If it gets much hotter than shown I dont think thats a good sign. I think the 79's only had the trombone oil cooler (not really a cooler at all).

If I were you I would upgrade to at least the 28 row brass oil cooler or if the budget allows, get the carrera finned cooler.

edward993 · 06-20-2005, 03:50 PM

Someone mention a 28-row cooler? I've got a perfect one for sale, and my oil temp needle has always stayed BELOW the the 9:00 "mark" in traffic even on 90+ degree days. Sorry for the opportunistic plug ...trying to fund the track-upgrade madness.

Edward

niner11 · 04:25 PM

......

niner11 · 04:26 PM

Wrong thread I hate when that happens!!!!!

JBO · 06-20-2005, 04:55 PM

My unscientific feeling has always been that anything above middle of the guage is too hot, and you are about 5 degrees above middle. Not terrible, but i wouldn't want to run there much. Get a cool coller

Oh Haha · 06-20-2005, 05:56 PM

Ok, fellas. My car never gets above the second white line of the "box".
Even on my first track day in 85 degree weather. I have replaced my sender so I assume that this is ok?

JeremyD · JeremyD's Garage

No biggy

Oh Haha · 06-20-2005, 06:14 PM

Jeremy--no biggy for me or for biosurfer1?

JeremyD · JeremyD's Garage

Sorry - I meant biosurfer.

As far as you are concerned Wayne. Do you have the right sensor? I think that there are two - and they have different calibrations. You should defitinitely be in 200 degree plus operation temps at the track.

With that said - Saturday at Sebring - it was over 100 on the track surface and 90 percent humidity - and my car was just a tick or two under biosurfer...

edward993 · 06-20-2005, 08:32 PM

Agree that's this is prob in the 220-230 range. While this is not "dangerous" per se, it certainly is not ideal for our air-cooled engines, ...according to the tuning gurus I've spoken with, anyway.

As a data point, when the 993s oil temp needle gets to about 9:00, it automatically turns on the "low-speed-fan" circuit; at just beyond that (like in this pic) the fan clicks into high-speed. So the implication is, in my mind anyway, that Porsche designed it to operate "under" this zone. Again, I know nothing of the correlation between engine internals and heat, but there are many independent porsche professionals who do; it is they that I listen to.

Edward

fireant911 · 06-21-2005, 05:01 AM

biosurfer1,

Look at this old thread (examine the photo by Navoros911):

http://forums.pelicanparts.com/porsche-911-technical-forum/219611-oil-temp-guage-post1976486.html#post1976486

Thanks to Oh Ha Ha for resurrecting.

Mysterytrain · 06-21-2005, 05:45 AM

I've got a 28 tube brass cooler and I typically run at a tick under 210 on hot days and that is with the 3.2 juggs on my 78. But I have wondered..since the brass tube cooler is more of a heat sink has anyone tried to run a pair of these? Sort of one in front of the other in the front fender?