KnoxE55amg

Got my nDash installed yesterday. Worried about my EGT temps.
Car is not tuned good at all. Running a canned tune till fuel tank gets installed from MB.
Mods
77FSP
Belt wrap
85mm throttle body
phenolic spacers
550cc injectors
looped rail
Kleeman mids (no cats)
Fabberge full exhaust (no cats or resonators)
split coolant
FTP heat exchanger
Bosch 010
ASP pulleys

Drove car last night 69deg.
Normal driving EGT's 800
light throttle EGT's 1000-1050
3rd gear pull 1200-1246
AFR drops to 9.6-10.2 full throttle so plenty of fuel
EGT prob on #8 cylinder about 3" or so from head.
Any concern????

Hulk

Getting higher with a rich tune, when it gets leaner how hot will it get the question...what does the tuner say?

KnoxE55amg

Gotta pick up a memory card to log and send file. Gotta drop it off Monday at MB to sit and wait on fuel tank.

cnterline

There are so many variables involved with this question that it's hard to say ,maybe the engine designer himself could tell you ,or somebody over at AMG could shed some light,probe distance from actual combustion plays a role and the only reason I'm commenting AT ALL is I used to run them on my race snowmobiles I know different animal ,however I would routinely run up to 1400 degF midrange when I was told 1250 max ,never had a problem ,so unless someone has extensive experience with probe placement on our motors I'd take it out and monitor your AFR ,IMO rather then hunt for an answer you could be getting from a 17 yr old who googled the info ,I'm 51 and have blown my fair share of stuff up lol
Just doesn't seem many guys monitor that parameter that I've seen I could be totally off here but I think you're the only thread I've come across asking this question ,
Disclaimer ,just sharing my very limited knowledge on this ,
PS running up to 1400 deg was done as I was also reading the combustion color on the plugs ,so probe placement had to be wrong as aluminum is usually liquid at that temp

jmb614

I monitor EGT's, I can't recall exactly how far away the probe is from the head, but its as close as my fabricator could get it. I typically see 1100-1150 at the top of third 10.8-11.4AFR.

My car has had the same dyno tune for the past two+ years, haven't ran into any issues. (Knock on wood*)

KnoxE55amg

Thank you.