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Old 03-09-2002, 09:02 PM   #1
RichinAZ
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Default Do these EGT's sound right- Compare

Thought it would be good to compare some relative EGTs to see if what are normal:

Probe Placement: manifold 5 inches from Cyl. 3
800-900F - nomal idle
1300-1400F - highway cruise at 75mph, 3000rpm
1500F - WOT

Mods: Cobb RT spec and Perrin up-pipe.
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Old 03-09-2002, 09:08 PM   #2
WizardBlackWRX
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I think that sounds pretty normal and safe. I cannot say exactly with your particular setup, but you seem to be pretty good. I am converting from Farenheit to Celcius so I can actually think about the numbers.
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Old 03-09-2002, 09:22 PM   #3
TurboRex
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I have a vdo gauge and the probe is on the driver's side 5 inches out. I get about 750F idle, 1300-1350 cruise, and 1350 wot. My numbers are lower than most I think. Maybe due to the uppipe and 3" exhaust and injen intake, not sure. Maybe my gauge just reads lower.

Greg
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Old 03-10-2002, 01:16 AM   #4
RichinAZ
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anyone else, what are your readings???
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Old 03-10-2002, 01:19 AM   #5
Eric SS
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swap and N20. gone. : (

Default

Quote:
Originally posted by RichinAZ
anyone else, what are your readings???
Not to hijack your thread but I don;t recall you ever posting in the Southwest forum. You should come on over and say hi to us fellow Phoenix folks if you haven;t

Eric
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Old 03-10-2002, 01:28 AM   #6
RichinAZ
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Eric,
I was over at Vivid today and will be at Firebird tomorrow. Hope to see you there.
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Old 03-10-2002, 01:34 AM   #7
Eric SS
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swap and N20. gone. : (

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Quote:
Originally posted by RichinAZ
Eric,
I was over at Vivid today and will be at Firebird tomorrow. Hope to see you there.
Gottcha. Sorry. I forgot about the Vivid meet accidently.

Eric
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Old 03-10-2002, 08:48 AM   #8
Force[FED]
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"vdo gauge and the probe" -> I think this is the setup that my brother used in his turbo RS for a while, and the thing always read funny/low (if you are using the vdo probe also). It never seemed right, and don't you know when the probe died he switched to a Westach probe and Autometer gauge, and his readings are much more as to be expected.

Have read of DSM guys with inaccurate readings with the vdo egt stuff (I think it's mainly the probe that vdo uses). Whenever the probe dies, try using a Westach (they are inexpensive anyway) and see if your readings are the same.

Kev
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Old 03-10-2002, 09:51 AM   #9
TurboRex
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Thanks for the tip Kev. It seems very consistent at cruise but idle can vary widely. WOT hardly goes up but either the probe is slow to respond or I am just very rich. I think it is a little of both.

Greg
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Old 03-10-2002, 02:33 PM   #10
Force[FED]
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No problem. I do rememer Steve saying how slow is EGT was to respond (especially noticeable once he switched to the new Westach probe).

I just installed my Greddy EGT probe yesterday. Placed it about 3 inches from cylinder #3 exhaust port. Didn't romp on it with the wife in the car (the mkiii is a little much for her), but was seeing ~750C(1392F) at 60mph cruise. Never saw it break 800C(1472F) even when accelerating briskly.

For those playing along at home, conversion is F = (C*1.8)+32 pretty easy to remember.

Kevin
www.forcefed4.com


PS The Greddy probes are fantastic, very quick to respond, and last pretty long. Of course, they are not the cheapest either.
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Old 03-10-2002, 04:25 PM   #11
RichinAZ
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Default What about at idle

ForceFed,
Numbers sound pretty similar to mine. What are you reading at a normal idle? I just freakin on this since I am getting a code P171 System Lean CEL.
I think could just be the cold air intake, but ??
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