Does anyone know what normal or typical exhaust gas temperatures are for a R56 MCS? The reason I ask is that I just installed the P3car ODB2 gauge and it has EGT as a parameter to monitor. Not sure how they get it but they state it is "the exhaust gas temperature as calculated by the ECU".

The gauge is displaying between 1250F to 1350F. On the low end when cruising and toward the high end when WOT.

 

It's only 1350 at WOT? That seems low. Granted I don't know what a MINI should be at but my bros Twin-Turbo F150 hits 1700, my diesel can get up to 1800...

 

When I was monitoring it today it was only during short stints at WOT, I'd imagine that it will probably go higher during longer pulls.

 

Is that with your water/meth on?

 

Yes, the meth was spraying. So, I'm thinking that it should be lower than "normal".

 

Yes that does explain the low temp. 1250 is normal at cruising for the gas engines I have seen, and 1600+ is common under WOT with no meth.

 

And neither of those have an aluminium head...

 

The F150 has aluminum heads, psitons, and block, according to what I found online. I also asked my good friend who builds LS engines and he said 1200 is normal at cruising for a gas engine, 1600+ without meth is normal too. Even on an engine running all aluminum.

http://www.f150hub.com/specs/ecoboost.html

 

Mine gets up to ~1500F regularly at WOT, I've seen 1613F once recently. This is taking the measurement at the 1st oxygen sensor and with a catless downpipe. Cruising is 900-1200F depending on load.

 

Just to add to the conversation as I have been taking quite a few measurements.

I use an AP to read out the 'calculated EGT' via the OBDII port and use Torque to monitor the Primary O2 sensor temp.

The calculated EGT has always been lower and drops much faster than the O2 sensor temp. The calculated being lower part mystifies me somewhat, although the O2 sensor is getting the heat from all cylinders less the energy consumed by the turbo. The fact that it drops fast makes sense.

Measuring at the 1st O2 sensor, I see 1100-1350F or so during normal drives.

With stock tune on 91 pure gas or 93 10%ETOH, I have seen as high as 1580F, though this is only street driving (2, 3, 4 or 3, 4, 5th gear pulls to get the temps to rise), not tracking or AutoXing.

With the Alta AP Stage 1 91 octane, I have seen as high as 1675F a single time running 93 octane with 10%ETOH.

With the Alta AP Stage 1 92+ octane, I typically see upper 1500s to low 1600s at WOT running 93 octane with 10%ETOH.

I have the stock downpipe, but 2.5" exhaust after that with no 2nd cat.

My timing has always progressed smoothly from ~2-6 and AFR drops into the low 12s.

LTFT is -12.5% on the 93 and was -14.8% on 91 pure gas.

Comments?

 

delete, wrong thread

 

I just got an OBDLink MX BT for my android phone and when I was driving around town I never saw my EGT's higher than 900 degrees fahrenheit (85+ abient), after idling my engine it dropped down to 800F after a few minutes. I don't drive my MCS light, more of a moderate performance driver.

 

I can hold 1350 at...ahem....highway cruising speeds.

I can hit 1685F under spirited driving conditions.

900 sounds like degrees C (1652F).

At low load , cool er down driving, I can get it down to 1050-1150F.

BTW, the ecu also calculates an 'EGT' which will be lower than the bank 1 sensor 1, and drop faster.
I can see it with my AP but not my obd2 Bluetooth reader and torque.

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It's set for fahrenheit under "Units".

 

Hmm.. Mine may be way high then. So you have 'Use Celsius' unchecked?

Edit: I see in your other thread that all of the gauges are in °F.

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What I typically see:





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And after gently cruising home with a little idle time:

(Including a/c on max to drop engine temps).



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Yeah it's unchecked, I'll drive for a longer period of time on monday and we'll see. How long does it take for you to see 1500F for EGT's?

 

Once it is warmed up....a 3,4,5 gear pull will do it. That were both taken during an 8 minute total drive down the highway and back. One in the middle and one at the end.

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