ok this looks like the right section to post this.

im installing my EGT gauge and started thinking.. where should i tap into? the turbo manifold? or downpipe?
would it be better knowing the temp of the exhaust before the turbo, or after?

prob a really stupid question, but what do you think?

 

seems like a good question to me, but I would think on the turbo manifold because it'd be nice to see if the temps are getting too high so you can shut down without damaging your tubo. A buddy of mine got his too hot and the turbine blades warped

 

on the turbo manifold. u have to find the the leanest cylinder. on 2.0 ecotec's its #4

 

isn't it after???

 

damn, i was hoping i didnt have to take the turbo off
thanks!

 

pretty sure its after

 

Middle of the turbo.

 

no. what i said is correct. with any egt gauge, u put on leanest cylinder or on all of the them. and its on the manifold for sure

 

On your BOV.

 

i would do it after the turbo, as the turbo itself is made of some high quality crap, plus the readings would be inaccurate due to the turbo sucking and the circulation of the exhaust turbine.

Put it on the downpipe.

To the other dude, his fins probably warped being due to a cheap turbo or just a bad turbo release.

 

In your cup holder.

 

 

ok.. so where shoudl i put it? lol

 

seriously, on your turbo manifold

 

what started out as a purely stupid question, with an easy to find answer. has become into the idiots leading the ignorant.

pyromiters go IN the manifold you idiots. as you want to know the gas temp coming out of the engine. why the **** would you want to know what it was post turbo? ya know, after a thing which you have noooooo control over?

putting it down stream allows for more and more time for the gas to cool, thus **** readings.

put it in the exhaust manifold, on the leanest cyl.

however, if your asking this question, i'm gonna bet you have nooooooo need for this. as some one with a set up developed to the point at which AFR becomes secondary to EGT is generally intelligent.

the guy with the bent turbine vanes, it sounds as if your doing at least one of the fallowing.

useing a **** turbo, as high end units use inconel for blades. its got a yield temp far higher then what exhaust valves tolerate.

useing a turbo with a **** CHRA, as that'll allow for the wheel to walk its self into the housing, thus bending/braking ****.

 

ok, thats where its goin

 

good choice!

for turbo questions, and set up, id recommend lurking around other forums, DSM's ect. as not only have those guys been doing turbo stuff for years, most the crowed in basic turbo knowledgeable.

 

thank you. thats exactly what im looking for
and im tuning now off of speed density, so im just wanting to make sure everthting going in and coming out of the engine is running right

 

wrong.

 

I believe EGT = Exhaust Gas Tempature. Taken after the last stage of Turbines.
If you place it before the Turbine, you have TIT or Turbine Inlet Tempature.

TIT is normaly significantly Higher then EGT. However based on operating instructions,
a safe TIT can be maintained if you know it's corrosponding EGT.

 

You DO NOT place the exhaust gas temperature gauge AFTER the turbo. That is end of story.