Pyro gauge in but what should it run at?

[Covo71]

Ok so I have fitted the pyro gauge today and took it for a drive. The gauge starts at 300deg. I was running down the hwy in 5th doing 100kms and the gauge didn't move off 300. I went up a slight hill in 5th at 120kms and it went up to 350deg. Pushed it hard in 4th up a fairly steep grade and it got to about 450deg. Is this normal? I also fitted a Diesel Smart intercooler this week. The temps seem a bit low.

[P4trol]

Depends on where the probe is (how close to the turbo). Things like intercooler fan affect it, so a new intercooler sounds plausible. Also whether you have an Egr block or dpi has an effect.

There's no right or wrong value. Generally over 550 degrees Celsius is getting a bit hot. If everyone put their probe in the exact same spot and had the exact same mods, we could 100% compare.

So drive and watch how terrain and driving style affects temps. Modify your driving style for lower temps.

Learn what is normal. If you see a change in temps, and it's out of the norm, you can check it early. (or if you do a mod and it is for the worse, you can revert back.

[Rock Trol]

Hi Cove, is it a CRD or Di that you are talking about? There is a big difference in EGT temps between the two.

[Covo71]

GU III DI. Probe is just after first bend in dump pipe. I just thought it would normally run over the 300 mark. But if it is not going over 400 I should be pretty happy with that. It was in the high twenties here today when I was driving so pretty good. No fan on the intercooler and egr is blocked. Thanks for the info.

[Rock Trol]

Sounds good. I was towing in my CRD and sitting on 350 over the weekend (and they run hotter). My probe is just after the bend as well.
You car sounds like its running well.

Maybe the gauge needs to show the lower temps. I have a Redarc and it displays all the way down to '0'.

[the evil twin]

300 is quite a high 'low end of scale' for an EGT gauge calibrated in Centigrade.

We are talking degrees C and not Farenheit yeah?
... and the thermocouple came with the gauge?

[P4trol]

Well funny story, when I bought my auber, it comes set to F from the factory. It was installed Friday night, and on the Saturday we went for a drive. Temps were around 780. A bit weird I thought. After a bit of thinking I downloaded the manual and set it to C. Then it was back to 360.

[Covo71]

Everything came with the gauge. If I was to do it again I would just buy the Redarc and have 3 gauges in one. stupidly tried to get out of it the cheap way but it wasn't really that much cheaper. And yes definitely centigrade. lol. Didn't really think about the low end when I got it off fleabay. Live and learn. cheers

[threedogs]

How far past the turbo/dump pipe flange is the probe,, more than 150mm.
Mine is 50mm but I think I'll change that soon
mine after a long idle is 200C
100Kph shows 300-350 when it settles on a flat road
will go to 500 up hill pushed hard in OD
feel I could put a tad more boost into it

[SG1]

Had a discussion with an exhaust specialist on egt probes and their locations with readings on temps, he advised me that they have tested several different types of common exhaust systems found on todays market on the same vehicle, and noticed up to a 70c difference between exhausts temps with the most common variations being between 30-50c, they placed their egt coupling in the hottest part of the exhaust dump pipe after many hours of testing and designed their exhausts systems this way to read as hot as possible on the egt probe, his reasoning was it gives a 'better' indication of your internal engine temps and exhaust temps and was not concerned that some other companys place there egt coupling in the less hotter areas of the dump pipe and claim reduced egt's by having there exhaust systems. Food for thought and does make a good marketing strategy..