Egt gauge is in.

[noogie]

Ok folks. The EGT gauge is installed and I'm impressed with the figures.

Powering up to a speed of 110 the temp gets up to 660.
But then drops down to around 565 cruising at 110.

At 100 it's around 480 - 500.

Are these figures consistent with where they should be for a remapped ecu td5 with 3" exhaust?

[Drover]

Where did you put the sensor ?

Before or after the turbo ?

[noogie]

I ended up putting it in the dump pipe as I was informed by a mechanic that drilling the manifold can create a weakness and it could crack . I was Also informed that the difference in temps wouldn't be huge. So I erred on the side of caution.

[Disco Muppet]

I thought EGT gauges were supposed to go pre-turbo...

[strangy]

I ended up putting it in the dump pipe as I was informed by a mechanic that drilling the manifold can create a weakness and it could crack . I was Also informed that the difference in temps wouldn't be huge. So I erred on the side of caution.

Without any ambient temps, boost figures etc and based on the position of your probe.
Its too hot and damage is inevitable.
There is approximately 200 deg difference pre and post turbo however the difference is not linear and cant effectively be applied to provide useful info for safe limits.

There are many posts on EGT, probe position, stable temps, max temps etc.
Have a read of those and after considering actual conditions and set up, make some changes to the map, boost and probe position.

Then maybe consider a different mechanic.

[justinc]

I ALWAYS drill and tap td5 manifols for egt probes, never had any issues with cracking etc, just doesn't happen to them, warping yes, cracking especially due to drilling, no.

and yes around 800 to 900 degrees upstream is what you are undoubtably experiencing, too much for a td5 unless in short bursts infrequently.

jc

[mools]

Ok folks. The EGT gauge is installed and I'm impressed with the figures.

Powering up to a speed of 110 the temp gets up to 660.
But then drops down to around 565 cruising at 110.

At 100 it's around 480 - 500.

Are these figures consistent with where they should be for a remapped ecu td5 with 3" exhaust?

:eek::eek::eek::eek::eek::eek:

I get lower temps per turbo and mine is no slouch.

Based on where you have decided to place the probe those temps sound really hot to me. As has been said you most probably risk damaging your engine but really its hard to be certain because you put the probe in the wrong place to give you a reliable reading.

You recently had a thread on here asking where to put the probe didn't you? You got all the right advice, shame your mechanic talked you out of it.

IMHO you'd be best to take the probe out and put it in the proper place (and no that's not up your mechanics arse :-) ) In the mean time I'd be laying off the right foot.

Ian.

[Dougal]

My concerns about these td5 remaps appear well founded. :eek:

[noogie]

I think you're right Dougal.

[flagg]

Wow. What is piston melting temp for a td5? If you do move the probe pre turbo it would be interesting to see the temp diff.. (but don't melt anything doing it!)

[noogie]

Wow. What is piston melting temp for a td5? If you do move the probe pre turbo it would be interesting to see the temp diff.. (but don't melt anything doing it!)

Took it for another drive today after getting the settings right on the egt gauge and here are the temp figures. I'm adding 200c as suggested. Cruising @ 100 ks relatively flat hwy 400-450c. Climbing long steep Hill 100ks 650- 700c.

So I figure that's not too bad.
:)

[Disco Muppet]

There's a good post by blcknight.aus about Td5s and EGTs.

650 = fine
700 = theoretically fine but bad for fuel economy
750 = you're starting to push it
800 and up = bad, I think Dave's words were something along the lines of "your mechanic will start to use words like 'butcher' and 'inept' and 'why did you fit a pyro if you weren't going to pay attention to it'

[noogie]

There's a good post by blcknight.aus about Td5s and EGTs.

650 = fine
700 = theoretically fine but bad for fuel economy
750 = you're starting to push it
800 and up = bad, I think Dave's words were something along the lines of "your mechanic will start to use words like 'butcher' and 'inept' and 'why did you fit a pyro if you weren't going to pay attention to it'

I'm wrapped I've got one to monitor egts now. Bloody good investment. I'll be watching it and driving accordingly.
Cheers
Mick