Turbo EGT
TECH Fanatic
Joined: Nov 2001
Posts: 1,190
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From: Las Cruces, NM
No personal data. But you would be a good idea to post were the thermocouple(s) are located. For example placing the thermocouple a few inches from the header flange would yield drastically different results than say the thermocouple in the collector.
Gary
Gary
My probe is in the y-pipe. At idle, between 800 to 900 degrees. WOT through 1st, 2nd, & 3rd, I usually get between 1200-1300. Just cruising, usually between 1000-1100. Hope that helps.
How high is too high? I know researching my Cummins, extended above 12-1300ish is pretty much the line in the sand, but this is a completely different ball game. Thinking about putting a pyro in my car (hopefully it'll be running in a day or 2 here) just to see, but I dunno what the line to watch out for would be. 
From what I've heard, if your over 1400 at WOT that is getting too high. So, that is why I am pretty happy with mine running between 1200-1300. Before I did the injectors, intercooler, etc... At 5 psi, by the end of a 1/4 mile run, I was a little over 1400, so I let off before the end of the track. Now, we'll have to see with the injectors and the new tune.
The Buick GN turbo setups tune for 1500-1650* depending upon air temp outside. The probe/guage reads slightly differently with different ambient temps.
Mine would go faster as I leaned it out to increase EGT's. 1600* for my GN hybrid (turbo V6) netted the fastest mph. My probe was near the header collector just before the turbine inlet. I wouldn't see why it would be different for LS1 based turbo setups unless your probes are post turbo. Lean it out until the mph slows down then richen it up a tad to be safe.
-GNX7
Mine would go faster as I leaned it out to increase EGT's. 1600* for my GN hybrid (turbo V6) netted the fastest mph. My probe was near the header collector just before the turbine inlet. I wouldn't see why it would be different for LS1 based turbo setups unless your probes are post turbo. Lean it out until the mph slows down then richen it up a tad to be safe.
-GNX7
Thread Starter
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Joined: Oct 2002
Posts: 705
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From: Fort Lauderdale
Yeah I have read mostly that EGTs below 1500 are safe and 1500-1600 is getting too hot. Any1 else care to chime in? This is a good discussion, not too many people have solid info on this for our cars...
But I am sure some people on here must know...
Anyone that wants to get scientific go right ahead
But I am sure some people on here must know...
Anyone that wants to get scientific go right ahead
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