Got this reply from a tuner about egts from tuning. Opinions needed.

[Remdogg]

Asked about getting my ecu flash tuned. Says the they do it on the dyno real time. I ask about egt increase and this was his reply.


Thanks for your enquiry.

We have done testing with a Y61 patrol with an EGT gauge fitted, generally
the temp increase by around 80-100 degrees over standard, i.e. it was
around 600 degrees C which is still very safe.

We obviously add fuel when tuning but by adding around 3-4 psi of boost the
AFRs are not that much richer than standard which keeps the engine safe and
reliable.

By making more power the egts will always increase, by how much is the
concern and from our testing its still very safe.


I was thinking 600 was to hot. Anyone with chip have any comparisons

[rusty_nail]

which motor mate?

[Hodge]

600 is getting up there, but still safe. Chuck an EGT gauge on a stock common rail and push it a bit and see what happens. Very normal.

[Remdogg]

Oh yeh CRD

[Remdogg]

So what is the highest I should go I thought 550 was the limit. I know mine gets up there if I give it a good kick.

[Hodge]

So what is the highest I should go I thought 550 was the limit. I know mine gets up there if I give it a good kick.

I think it's one of those "How longs a piece of rope" questions mate. Obviously the lower the better.
Mine dropped heaps with blocked EGR, and then even more with a better intercooler. I'm yet to see mine go past 500C nowdays, now matter how much I push it.

[Rock Trol]

I think it's one of those "How longs a piece of rope" questions mate. Obviously the lower the better.
Mine dropped heaps with blocked EGR, and then even more with a better intercooler. I'm yet to see mine go past 500C nowdays, now matter how much I push it.

That's good to hear Hodge. I don't have an egt gauge yet but have a bigger intercooler/3 inch exhaust/egr block so all should be OK.
Once EGT gauge is on I'll be able to see exactly what the car is doing.

Remdogg, what you where told sounds correct. I had my ecu retuned last year and if I push it up hill the scangauge shows that the water temp rises higher than it used to when stock. This isn't as instant as an egt gauge but certainly shows that more fuel is added to get the power and this means more heat.

[MEGOMONSTER]

I see mine at 500-550 up most hills, freeway driving. No real difference when towing. Maybe just a little higher.
600 when really pushing it but don't like it that high.
Being a CRD is very common.
So the way I see it, should be ok.

[Dazzalco]

My stock crd no mods at all could easily get to 600 plus giving it a bit also normal hwy driving into head wind could see 500-600

[Stropp]

If you put a bit more boost into it the egt's will drop, personally I would not use a tuner that says 600 is ok but that's me.