Do these egt's sound right
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Do these egt's sound right
The previous owner of my truck had the isspro egt probe mounted in the downpipe. Today, I picked up an isspro screw in probe and mounted it pre-turbo. On the freeway in od doing 90 my egt's were only 875 F. I was under the assumption that they would be a little higher. I realize that with a load or going up a hill would give a higher reading but, not sure exactly what it should be. The only mods to the truck are as follows; k&n filter and removed stock airbox, muffller isn't stock and goes into dual 3" pipes out the rear, and the pump has been tweaked a little bit. All that I can say about the pump is that I have turned the smoke screw in 2 turns and the truck currently makes 22psi. I've got some POD's sitting in the garage and wanted to have an accurate pyrometer before I install them. Sorry for the long post!
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Re:Do these egt's sound right
If you are still running the stock injectors then I'd say those temps are right in the normal range for your setup.<br><br>Once the POD's go in, you'll see an increase to be sure. You can 'moderate' that a bit by increasing your pump timing a bit too.<br><br>Just remember that the generally accepted and often quoted max temp is,... 1250*F pre-turbo for extened running.<br>Short excursions above that can be tolerated so long as it is not extended running, and you allow it cool down really well afterward.<br>I was told that 1350*F for 1 minute out of 5 is acceptable, and once you hit 1500*F stand by for a re-enactment of the famous event....Chernyobl <br><br><br>Bob.
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Re:Do these egt's sound right
When I'm at W.O.T. (75-80, no overdrive), my 90 is consistant at 950*. When cruising at 65-70, I'm at least 100* less. You sound normal.
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Re:Do these egt's sound right
i usually run about 550-600* at 75mph empty. my pump is probably only about 1 turn up, timing is up a bit, and I've got the 16cm^2 housing. I've never seen mine go above 900*, even pulling a 28' car trailer up 6% grades. I have the stock injectors, and I'm reading pre turbo.
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