Silece2k6 Posted July 1, 2015 Share Posted July 1, 2015 Hi. Yesterday I drive on the Autobahn. Wot from 3rd to 6th Gear no Problem with a AFR of 11,5-11,7. But my ext Temp was about 980 degrees and Oil 110 at 279kph so I let off the Gas. Is the ext temo too high`? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 1, 2015 Share Posted July 1, 2015 Where is the EGT probe exactly? Oil is barely hot, no worries there, again assuming the temp probe is somewhere sensible. Quote Link to comment Share on other sites More sharing options...
Silece2k6 Posted July 1, 2015 Author Share Posted July 1, 2015 The probe is in the downpipe ca 4inch after Turbo Quote Link to comment Share on other sites More sharing options...
Luxluc Posted July 1, 2015 Share Posted July 1, 2015 Almost 1000°C measured at the downpipe is A LOT! Quote Link to comment Share on other sites More sharing options...
Silece2k6 Posted July 1, 2015 Author Share Posted July 1, 2015 Maybe the Gauge and Sensors Are bad... When i Drive ~ 130kph for a long time with low trottle I got about 850C and without big Boost (0,3bar) Strange... Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 1, 2015 Share Posted July 1, 2015 The probe is in the downpipe ca 4inch after Turbo Useless. EGT probes need to be as near the exhaust port as possible, and in the manufacturer's world, they are in the combustion chamber itself, of each cylinder. After a turbo is no good at all. But if your reading is correct the combustion chamber temperatures are through the roof. - - - Updated - - - Maybe the Gauge and Sensors Are bad... When i Drive ~ 130kph for a long time with low trottle I got about 850C and without big Boost (0,3bar) Strange... Hopefully the readings are (very) wrong. What probe and sensor are you using? Please don't say HKS or even worse, Defi Quote Link to comment Share on other sites More sharing options...
Silece2k6 Posted July 2, 2015 Author Share Posted July 2, 2015 I bought it from eBay.co.uk (brandless) Quote Link to comment Share on other sites More sharing options...
JamieP Posted July 2, 2015 Share Posted July 2, 2015 I wouldn't trust that myself. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 2, 2015 Share Posted July 2, 2015 Hmm, probably not reading right. If you think it's worth the bother and expense you could have it checked against a calibrated probe. Quote Link to comment Share on other sites More sharing options...
Silece2k6 Posted July 2, 2015 Author Share Posted July 2, 2015 I can not imagine that it is normal to have such a high temperature at 130kph with that low Boost... Are there any good Gauges? And btw thanks for your help guys Quote Link to comment Share on other sites More sharing options...
Luxluc Posted July 2, 2015 Share Posted July 2, 2015 What ECU are you running? Quote Link to comment Share on other sites More sharing options...
Silece2k6 Posted July 2, 2015 Author Share Posted July 2, 2015 (edited) Stock ECU with greddy emb. Only a Little additional Fuel in low rpm Range Edit: Maybe the Gauge has ne ne calibrated but my englisch is not the best. https://cdn.shopify.com/s/files/1/0801/3693/files/Gauge_Calibration_pdf.pdf?6951073034847728120 What Are Point 5-7 for? Edited July 2, 2015 by Silece2k6 (see edit history) Quote Link to comment Share on other sites More sharing options...
Luxluc Posted July 2, 2015 Share Posted July 2, 2015 (edited) Tbh, I would put a proper gauge mate. I have one at home. A DEFI Racer. Edited July 2, 2015 by Luxluc (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted July 2, 2015 Share Posted July 2, 2015 For a none permanent installation many cheap multi meters now have a K Type thermocouple input. Your sensor is almost certainly a K Type, as are 90% of EGT sensors. You could connect the existing sensor to the multimeter socket and see if the reading is different. Worst case you gain a cheap multimeter. I use a meter from RS Components and my own Inconel sensors, which don't melt and send the tip through the turbo turbine impeller. http://uk.rs-online.com/web/p/digital-thermometers/2064309/ I can read plenum and EGT temps with this, and it does basic logging, too. Quote Link to comment Share on other sites More sharing options...
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