Maximum EGT for. GAS 4.2 - Defender Source
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  #1  
Old March 31st, 2011, 05:20 PM
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Clark Bowen
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Maximum EGT for. GAS 4.2

working on ways to not toast a supercharged 4.2 and it occurred to me that keeping an eye on the temperature of each bank would be a very good idea.
It sure helps with my 300 TDI.
Does anyone know the temperature of the heads, exhaust manifold, or oil when I'd want an alert to go off?
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  #2  
Old April 1st, 2011, 06:11 PM
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Phillip
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Ive never know people with boosted engines to run EGT's cept on diesels. Everyone I know with boosted gas burners run a air fuel gauge
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Old April 1st, 2011, 07:20 PM
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Clark Bowen
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Yes, I was trying to come with a belt and suspenders approach, but the AFR gauges seem to be enough.

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------ Follow up post added April 1st, 2011 04:22 PM ------

There should be an "up" after "come"

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  #4  
Old April 2nd, 2011, 12:23 PM
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J. Michael McCaig
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The factory supercharged engines that I am familiar with use oil spray to cool the piston skirts. I don't know if the Rover V8 has those oil sprays but I think that keeping the oil cool (and effective) would be of upmost importance. I would want to also monitor the oil temperature.
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Old April 2nd, 2011, 03:22 PM
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No oil sprayers in a Rover V8.
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Old April 2nd, 2011, 06:33 PM
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Clark Bowen
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You should have seen how much oil it sprayed when I grenades the engine. The cloud of smoke from the exhaust and off the cats was truly monumental. I probably doubled the air born contaminants in New Mexico that day. Very embarrassing.
I thought about oil temperature gauge but decided my priority was detonation. I can't hear it, so I ordered two Knocklites - one for each cylinder bank.
Theoretically, they will alert me way before it becomes a serious issue. On top of that I ordered two AEM wideband O2 sensors - again, one for each side.
On the 1,200 mile trip back to Oregon I'll get to test the thinking. BTW, it was advice from this Forum under a different post that led me in this direction. Thanks very much.

Clark

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