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Old 10-19-2008, 04:43 PM   #1
Scooby Specialist
Member#: 38629
Join Date: Jun 2003
Chapter/Region: NWIC
Location: Northwest
1999 Legacy GT (STI)

Default Dangerous EGT temps -folks at the track what have you seen?

I took my car to Pacific Raceways last week.
My car and another owner with an 04 WRX had EGT temps in the 1650 range. I think I hit 1680 once.

Is this normal? What have other seen? Both of us are running one high flow cat I believe. What can we do to lower temps?
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Old 10-19-2008, 05:18 PM   #2
Solar Reflections
Former Vendor
Member#: 88346
Join Date: Jun 2005
Location: SRP
3108 A St SE Auburn
WA 98002


That seems normal for a lapping day doing 150+ down the straight.

Add fuel to lower the temp.
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Old 10-19-2008, 06:02 PM   #3
Cone Klr
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Member#: 73072
Join Date: Oct 2004
Chapter/Region: NWIC
Location: Eugene/portland
02 wrx, 04sti
WRB squared!

Default egt

It really depends on where in the exhaust your egt sensor is located. 1650 is a normal temp to read if your sensor is located in the header manifold. you should read around 1400 if it is in the up pipe. much more than that and you could be running a lean.
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Old 10-19-2008, 07:11 PM   #4
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Member#: 164362
Join Date: Nov 2007
Chapter/Region: NWIC
Location: Portland, OR
2004 STi


1650 is okay as long as the sensor is within 6 inches of the exhaust port. I had mine hit almost 2000 when my fuel pressure dropped off running 30psi on a Red. Thank goodness for forged pistons!
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Old 10-19-2008, 09:30 PM   #5
Airborne Guy
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Member#: 68516
Join Date: Aug 2004
Chapter/Region: NWIC
Location: NC
R.I.P. MasterTuned©


When I was at my last lapping day at Bremerton I hit 1700 a couple of times. Mostly only got 1650. Probe in manifold

Everything felt normal, no knock or stutter or anything (per log data from UTEC)
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Old 10-19-2008, 11:31 PM   #6
Scooby Specialist
Member#: 63767
Join Date: Jun 2004
Chapter/Region: NWIC
Location: PDX
2009 OXT 5-spd
2011 STi hatch


I have got close to 1700 before during laping days. The last two I did was with a track map Tim Bailey built for me. I saw about 200 degree lower EGT temps with this map.

Last edited by tazswing; 10-20-2008 at 12:29 AM.
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Old 10-19-2008, 11:37 PM   #7
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Member#: 132286
Join Date: Nov 2006
Chapter/Region: NWIC
Location: Auburn
2006 STI

Subaru Stars

My sensor is welded in the header collector, I set my EGT alarm for 1650 and it went off once climbing the pass on the cascade loop run.
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