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Old 06-22-2004, 01:20 PM   #1
Barticus
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Default egt

I have a stock wrx turbo on my 97 2.5 legacy gt (dohc). What kind of egt would be dangerous to exceed?
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Old 06-22-2004, 01:33 PM   #2
crk4
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If I recall correctly, I dont think you want to go over 1450-1500 degrees fahrenheit.
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Old 06-22-2004, 04:19 PM   #3
STi-Nismo Dood
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the stock 2004 WRXs for some reason runs up to 1500s F because they leaned it out compared to previous WRXs. Not sure how the factory AFR goes on that WRX, but I think the egt bung was done at the downpipe for this.

Many also say anything over 1650s F on the cylinders will be bad.
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Old 06-23-2004, 09:19 PM   #4
Unsung Boxer
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yeah, you want to tune so that 1500 is about your max. 1450 is stoich.

I hear that 1600 is when your starting to get dangerious, which on most guages, they only go up that high.

I hope im correct, or my car has problems!

-Jake
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Old 06-25-2004, 02:17 PM   #5
subieworx
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1600* is the point at which aluminum (our blocks and head) start to melt. That is why you want to stay under that. I used to tune my Talon to 1550.
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Old 06-25-2004, 05:17 PM   #6
STi-Nismo Dood
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not to contradict about keeping below 1600F egt, but have in mind that we aren't exactly just using aluminium since our blocks are aluminium alloy, also don't forget the coolant walls.
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Old 06-25-2004, 05:20 PM   #7
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To clarify, straight aluminum starts to melt at 1600. Aluminum alloy will melt at a higher temp, say 1850, but that depends on the makeup of the alloy. Unless I know exactly what this engine is made of and what the specific beginning melting poitn is, I will stick to 1600 to be safe.
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Old 06-25-2004, 05:54 PM   #8
phattyduck
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Make sure you are taking yoru EGT readings in the manifold near the head. If not, add an extra safety factor. Tune to ~1500, and if you see more than 1550, fix the problem. And do a few more searches - don't take anyones word on here at gospel.

-Charlie
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Old 06-26-2004, 11:38 PM   #9
Barticus
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thanks, guys
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