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Hey everyone,

Has anybody mounted an exhaust temperature sensor or measured exhaust temperature with a temporary mounted external sensor? If so, please share the temperature... I've done quite a bit of searching and haven't gotten any kind of actual value, just "hot".
I am trying to use the data for a thermodynamic analysis of the engine to give some theory behind feasible modifications and material limits. I can calculate an approximate temperature leaving the cylinder, but not after the exhaust has been expanded through the turbine. Any kind of data whatsoever is appreciated.

I'm actually somewhat surprised with all of the diagnostics on the vehicle that an exhaust sensor was not factory installed. (Although I'm sure there is a reason for it)

Thank You
 

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i got EGT sensors installed on each downpipe. Peak EGT i see in downpipes is around 1100F while running on 50% toluene and 50% 93 oct mix + alcohol injection.
 

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Thanks for that info! thats about 600C
just reading this information from nippon steel about Ti http://www.nsc.co.jp...t/pdf/n8815.pdf
Ti oxidation around 700C and a max temp of 850C for exhaust pipes. not sure what kind of temps variance will go above or below the 1100F that you recorded for people with stock turbos and aftermarket turbos.
the 2013 is said to have a chemical inside the downpipe to reduce the temps iirc.
 

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well my temps are probably lower than most due to the fuel i'm running and the alcohol inj which both lower the egt.
 

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we recently discussed logging of EGT with Thistle, will and cobb guys

thistle suggested Pre turbo is much better for EGT (because what the turbo is doing greatly affects the EGT, and also dulls the information coming from the engine because the turbo is a bit heatsink/soak) but more susceptible to leaks and installation difficulties. EGT data is useful for setup, and then removed once tuned. That leaves you with holes for probes in your manifold, but doesn't mean you aren't leaving tips in there that could (potentially) break off and go through your turbine wheels, but that isn't a good reason to put them in the downpipes.
 

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That's a good point unless you are skeptical like me regarding the quality of fuel you have in tank (i'm using home brew fuel most of the time) which gives you no choice but to run along with the egt sensors all the time.

kinda OT but Ben i need a new set of GTC Titan asap :p let me know when ur back from malaysia
 
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