egt exhaust bung location??

[kitt]

where is the best place to drill and tap the hole for my egt probe?

 

[Poodles]

Best place is right before the turbo collector, though people do right off the 6th as well...

 

[shaeff]

I'd go right off the collector, as that'll give you a good range of all six cylinders.

Ideally, you would have one in each runner; but that' would be a PITA to monitor!

 

[figgie]

Not monitor.. LOG.

even K type Open EGT sensors are not the fastest to react!

 

[Poodles]

Back in the days before cheap widebands they where used for tuning...

These days I don't really see the point on a gasoline power motor. On a diesel though...

 

[Mr. Y]

Back in the days before cheap widebands they where used for tuning...

These days I don't really see the point on a gasoline power motor. On a diesel though...

EGT probe is still useful to verify tune quality... after tune is complete EGT can tell how far it's pushed.

 

[shaeff]

Not monitor.. LOG.

even K type Open EGT sensors are not the fastest to react!

Very true.

 

[IJ.]

I prefer to run mine post turbo that way WHEN the probe fails it doesn't take out the turbine wheel.

 

[buldozr]

I prefer to run mine post turbo that way WHEN the probe fails it doesn't take out the turbine wheel.

^ good advise

when you drive an Rx7, you get used to things going through the turbo (cough..apex seals...cough) :biglaugh:

 

[empera]

I prefer to run mine post turbo that way WHEN the probe fails it doesn't take out the turbine wheel.

u must run it very close to the turbo then?

 

[grimreaper]

egt's are good way to know when the timing gets retarded (KR) or if you have shit for gas not to mention give you a good NORM to go by. Mines right behind the oem o2 sensor.

 

[IJ.]

u must run it very close to the turbo then?

About 2" from the Flange Emp.

 

[empera]

hmm i think i will be running it like this then, since i have yet to install the EGT sensor.

 

[shaeff]

Me too. I don't really want to drill into the Greddy manifold anyway.

 

[kitt]

I put mine here, the collector seemed a bit awkward, let me know what you think.

http://s154.photobucket.com/albums/s266/kitt069/?action=view&current=171220081690.jpg

 

[Mr. Y]

About 2" from the Flange Emp.

Same here. BTW, IJ what temps do you see during long WOT runs and what consider as dangerous maximum?

 

[IJ.]

Last dyno session I saw 672c @ 470rwhp.

Anything over 750c and I'm getting concerned.

 

[isnms]

by jimi87-t manifold collector
http://www.supramania.com/forums/showthread.php?p=125175#post125175

edit: Some EGT info: http://www.supramania.com/forums/showthread.php?p=370984&post370984

 

[noah89t]

Last dyno session I saw 672c @ 470rwhp.

Anything over 750c and I'm getting concerned.

IJ, if your sensor was in the collector, what temp would you be concerned with? Mine is in the collector and my warning is set at 825c, which is when i back off. i don't know if the temp would drop from 825-750 between my location and yours.
i only ask because, i will soon be running a new turbo and i am unsure if i want to put the sensor in the same place.

 

[IJ.]

People I've spoken to say in the collector is about 75>100c hotter so add that to it.