EGT Probe location

Q&A regarding engines, turbos, and intercoolers and power upgrades

EGT Probe location

Postby avperformance » Sat Aug 14, 2004 7:47 pm

Where are you all putting the EGT probes in the 3sgte's? Pre turbo- Post Turbo? What Cylinder runs the hottest on these Motors?
Thanks in advance!!!
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Postby mototebok » Sat Aug 14, 2004 9:50 pm

Pre turbo. 2 and 3 run the hottest.
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Postby -==L=a=N=c=E==- » Mon Aug 16, 2004 9:09 pm

Cylinder 3 is the most common cylinder to go. So i'd put it in that runner before the turbo.
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Postby silverarrow » Tue Aug 17, 2004 2:19 am

Collector, preturbo. Average reading of all four.
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Postby billprice » Tue Aug 17, 2004 2:49 pm

#3 runner pre-turbo.
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Postby toyotatuner » Tue Aug 17, 2004 6:35 pm

how exactly do you put it in the manifold before the turbo? are these special manifolds with holes drilled out already?
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Postby Gary » Tue Aug 17, 2004 6:42 pm

Drill and tap.

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Postby billprice » Tue Aug 17, 2004 11:08 pm

Gary wrote:Drill and tap.

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And this shouldn't have to be said, but it's much easier and safer to drill and tap while the manifold is off of the engine.
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Postby ChrisD » Wed Aug 18, 2004 2:06 am

edit
Last edited by ChrisD on Thu May 06, 2010 4:24 pm, edited 1 time in total.
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Postby pog0 » Thu Aug 19, 2004 6:17 pm

Dont know why but the people who worked on my car recommended that I put it in the downpipe. I trust their judgement since they do build Supra's allllllll the time. Last I heard, their current Supra put down 1084 at 26 psi on a conservative tune.
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Postby ChrisD » Fri Aug 20, 2004 2:49 pm

edit
Last edited by ChrisD on Thu May 06, 2010 4:34 pm, edited 1 time in total.
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Postby alltracman78 » Fri Aug 20, 2004 11:46 pm

chris_dittrick wrote:I think a better option is to drill a hole and weld on a bung. I hate tapping threads personally...

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Plus tapping cast iron is a pain in the a$$.
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Postby silverarrow » Sat Aug 21, 2004 4:30 am

I don't know how you guys are tapping, but tapping threads into cast iron is not hard at all.
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Postby pog0 » Sat Aug 21, 2004 6:09 am

Doesnt seem hard, just gotta have the right drill or drill press to drill through the damn iron.
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Postby alltracman78 » Sat Aug 21, 2004 9:00 pm

silverarrow wrote:I don't know how you guys are tapping, but tapping threads into cast iron is not hard at all.


With a hammer?
jk :D

With a good 'ol craftsman set.
It is definitly doable, but harder than into steel.
It's easier to just drill a hole and weld a fitting on.
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