ok so whats the average EGT's for an evo VIII...(stock block), like running back to back runs banging each gear really beating on her, whats the highest egt you should see and where does it begin to get dangerous, i know we have forged pistons stock but im just curious as to where they run into problems

edit:: egt sensor located on runner #1 that is if your looking at the engine from the front of the car its the cylinder farthest to the left on the passenger side

 

are you tuned? and what are your mods? boost levels.. etc.

 

tuned , 22psi, no cams, core intake pipes catless exhaust

 

The Egts shouldnt get over 900 degrees much at all. And not over 1000 degrees for any longer than a gear.. Your running a test pipe, so you really shouldnt see them climb that high.. But just keep them under 900 to be safe. your tune will also determine your Egts.. Since your only boost 22psi, I would think you have slightly more ignition timing, which will lower Egts.

 

good thread if u dont mind me chiming in on one of my ? can we see some other opinions on stock and then with built motor??

 

do you have upgraded internals? list your specs...

 

amak, im sorry but i dont think you know what im talking about, im referring to an Exhaust Gas Temperature, the sender for this gauge is placed on a manifold runner, it is used to help you know what the temps inside the cylinder head are, thats why i listed location, 900 maybe usual for you but im almost always over 900 if im cruising the sender is literally about 2 inchs from the exhaust port, i did this purposely because it will allow me to better understand just how hot its getting in the head, no i dont have upgraded internals, and im not running meth, but its ok i got a buddy who had his in the same spot to take a drive he said its lower then his was, probly because i have a conservative tune right now, since im waiting on a part before i retune it, i should have posted this in the advanced section


just to let you know amak your EGT's go higher then 1000 on an everyday basis if you drive the car even remotely hard and have anything other then a stock tune, im not new to this i just choose to not post alot on this site outside of the ecuflash forum

also since i tuned it and i know my ignition timing, pulling timing...not advancing it will lower EGT's hence why it is done by the ecu itself when it encounters more then 3 counts of knock...detonation raises EGT's the evo's ecu pulls timing when it gets detonation...

 

LMAO.

uh, no. Your EGT's will become lower w/ more ignition timing, and less fuel (to a certain extent). I know what your talking about, and more pal. And the gauge is meant to tell you the temperature at which the combustion is producing. Your high EGT's is most likely from a rich AFR. What is your AFR throughout the rpms?

Tuning w/ more boost and less timing, will give you slightly higher EGT's, but it will also keep you further away from knock, because to much ignition timing is the main reason why the evo encounters knock. Also, by using the "boost for power" method, the car will be much more consistent..

Tuning w/ less boost and more timing, will usually produce the same power, but the car will be more knock prone, however, the motor will have lower EGT's.

If your running to rich, then you will have a higher EGT. Your fuel is then not being completely combusted, resulting in a bigger flame leaving the head right to your EGT probe. That may be a possibility..

And are you fuggin kidding me?? If my EGT's got higher than 1000* on a daily basis, then I would no longer be driving an Evo.. They shouldnt raise above 950* when your on the throttle...


First off, do some research before blabbering sh*t, or atleast dont just say sh*t you heard from other people. Second, I really hope that your EGT gauge is either reading incorrectly, or your probe tip may be in contact w/ the bottom of your exhaust manifold.

And if you did tune your car, why are your EGT's so high? And if you think you should have posted this in the advance section, then why didn't you? LOL, you would just get laughed at. GL tuning your car.. LOL.

 

I think he is saying F and you are thinking C

 

ok dude you go with that , and i didnt post in advanced section cause i didnt expect an immature response like yours, i mean obviously im not going with the more boost more power theory dude, come on...

i asked a simple question, weve misunderstood each other and of course like every other big mouth on evom you feel like its a pissing match and you have to win, feel free dude.

 

what? lol. what are you talking about? What do you mean your not going with the more boost more power theory? please do explain. You dont believe more boost will give you more power? I think im misunderstanding somethin?

How was my post immature? I just stated facts about tuning and EGT's.

Why dont you backup what you said earlier? Im not trying to get in an e-pissing match. lol. Cant you just back up what you said before? Or am I right? Please let me know. Im open to other peoples advice/thoughts.


BUUUT, lol. what degree are you talking about? lol. thats where the confusion may have taken place..

 

no dude what i thought you meant was how idiots love to turn up the boost and not tune for it and expect more power, again i think were miscommunicating here, anyway i am stating i what i believe to be facts due to simply watching my EGT's when i leaned out my cruise and forced open loop so it would run leaner and give me better highway miles (i daily my car) i observed higher EGT's at cruise due to that hence why i stated that EGT's increase when the car is running leaner and or detonating (my car wasn't detonating) also where you have the sensor located is definatly important, i understand what your saying when you mention the flames comming from the head when running richer, but i am definatly not running that rich, also i believe its possible that i may have the sensor so close to the head itself i might be seeing the numbers im seeing since based on what is said about the temperature inside of the cylinder head in boost i am getting a reading higher then your 950*, keep in mind that i have the sensor very very very close to the head i think if i moved it even 2-3 more inchs away it would drop significantly, and when i stated it was "immature" it was due to how you immediatly bashed me instead of asking why i thought what i thought, and were very condisending in how you stated your end of the facts, i apologize for my end of the ordeal, but really you shouldnt jump down someones throat so quickly, again i think it was mostly a misunderstanding, also when i had my car tuned for 24 psi on my other setup EGT's were actually less then they are now but since i changed my setup and havnt had time to put a very good tune in im running a conservative tune designed to just hold me over....it is richer then the last tune and it caused a bit higher of an EGT so i wanted to know what the average EGT was to rule out other possible problems such a clogged injector of bad FPR

i apologize again, lets just keep this thread above the bickering that is seen on the forum all too much

 

ya, sorry about triping out. lol I guess we were just misunderstood, but you stated the location of the probe is 2-3'' away from the head? Thats where its supposed to be installed. What gauge are you running? Celcius of Farenheit?

But as you stated, when your tune was for 24psi, your EGT's where lower, because of a slightly leaner mixture. I bet when you finally retune it, your EGT's will lower. What are your AFR's now?

 

EGTs not getting over 900*F? I think most are around 1200-1250 at highway cruise.

 

I was talking about Celcius in my posts.