Lurch Posted April 21, 2010 Share Posted April 21, 2010 Hello, I'm tempted to take my car for a track day soon, but I'm a little worried about the temperature it reaches sometimes. The standard gauge is always in the middle but my hks water temp gauge goes to 120degrees and this morning the egt touched 900degrees which was a bit worrying. I'm bpu, intercooler and uprated alloy radiator. Any ideas? Intercooler looks a little old. Link to comment Share on other sites More sharing options...
Terminator Posted April 21, 2010 Share Posted April 21, 2010 900 degrees is getting a bit high, where is your sensor mounted? Link to comment Share on other sites More sharing options...
Nic Posted April 21, 2010 Share Posted April 21, 2010 (edited) What condition is your radiator in? Sounds like it's time for a new one. What boost were you running when you saw exhaust temps of 900C? As Phil says, where is the EGT sensor mounted, before or after the turbos. If you have a FMIC fitted then make sure it is ducted so the air is forced to go through the intercooler and radiator. Edited April 21, 2010 by Nic (see edit history) Link to comment Share on other sites More sharing options...
Suprab1 Posted April 21, 2010 Share Posted April 21, 2010 If you have a FMIC fitted then make sure it is ducted so the air is forced to go through the intercooler and radiator. Hi Nic, can you be more specific about this? Link to comment Share on other sites More sharing options...
Lurch Posted April 21, 2010 Author Share Posted April 21, 2010 Radiator is pretty much new which is why I dont understand it getting so hot. Intercooler is pretty old though. The temp gauge I believe is before the turbos. Link to comment Share on other sites More sharing options...
Nic Posted April 21, 2010 Share Posted April 21, 2010 Hi Nic, can you be more specific about this? If you look through the gap in the middle of the bumper at the FMIC, on a lot of cars you will see gaps around the intercooler. In this situation, whilst driving a lot of the air will take the path of least resistance and flow around the intercooler rather than through it. Blocking/ducting the gaps around the FMIC will force the air through the intercooler, greatly increasing it's efficiency. Link to comment Share on other sites More sharing options...
Lurch Posted April 21, 2010 Author Share Posted April 21, 2010 If you look through the gap in the middle of the bumper at the FMIC, on a lot of cars you will see gaps around the intercooler. In this situation, whilst driving a lot of the air will take the path of least resistance and flow around the intercooler rather than through it. Blocking/ducting the gaps around the FMIC will force the air through the intercooler, greatly increasing it's efficiency. I shall be doing this tomorrow, never thought of it like that Link to comment Share on other sites More sharing options...
Suprab1 Posted April 22, 2010 Share Posted April 22, 2010 If you look through the gap in the middle of the bumper at the FMIC, on a lot of cars you will see gaps around the intercooler. In this situation, whilst driving a lot of the air will take the path of least resistance and flow around the intercooler rather than through it. Blocking/ducting the gaps around the FMIC will force the air through the intercooler, greatly increasing it's efficiency. Thanks Nic. Gone to check mine Link to comment Share on other sites More sharing options...
scotty71 Posted April 22, 2010 Share Posted April 22, 2010 My EGT's never really get over 600/650C will look at my FMIC also Link to comment Share on other sites More sharing options...
Luxluc Posted April 22, 2010 Share Posted April 22, 2010 My EGT's never really get over 600/650C Your sensor is in the downpipe then Link to comment Share on other sites More sharing options...
Nic Posted April 22, 2010 Share Posted April 22, 2010 My EGT's never really get over 600/650C will look at my FMIC also Where is the temp sensor mounted? I'm guessing if you are seeing those temps it will be mounted after the turbo. As a VERY rough guide the temps are around 200C lower when the sensor is mounted after the turbo. You really need the sensor mounted pre-turbo to get an accurate usable reading. Link to comment Share on other sites More sharing options...
scotty71 Posted April 22, 2010 Share Posted April 22, 2010 (edited) Where is the temp sensor mounted? I'm guessing if you are seeing those temps it will be mounted after the turbo. As a VERY rough guide the temps are around 200C lower when the sensor is mounted after the turbo. You really need the sensor mounted pre-turbo to get an accurate usable reading. The GReedy gauge was fitted before I got the car in Jan so I will have to check the sensor mounting point too So... say just crusing at 70/80mph down the motorway what EGT reading would you presume?? roughly Edited April 22, 2010 by scotty71 (see edit history) Link to comment Share on other sites More sharing options...
Ark Posted April 22, 2010 Share Posted April 22, 2010 900 degree EGTs are commonplace, if measured before the turbos. Assuming the intercooler mentioned is a front mount, then 120 degree water is possible because the airflow is ruined to the radiator - time for a new rad / thermostat which will have you cruising at 70 degrees, making maybe 100 degrees with a long, hard thrashing on circuit. Link to comment Share on other sites More sharing options...
Terminator Posted April 22, 2010 Share Posted April 22, 2010 The GReedy gauge was fitted before I got the car in Jan so I will have to check the sensor mounting point too So... say just crusing at 70/80mph down the motorway what EGT reading would you presume?? roughly It is hard to say, but roughly 680 - 740 degrees C is what I see with my sensor about 60 mm from from the manifold/ head interface in runner no 6, on steady and sustained 70 mph 20degree ambient air. Link to comment Share on other sites More sharing options...
jevansio Posted April 22, 2010 Share Posted April 22, 2010 As the Supra was never intended to run a FMIC & I have a 5" core, I'm going to cut a vent in the bumper (below the Toyota sign) to aid in cool airflow to the rad on hot days, maybe a bit like this but not as big This is a photochop I did to ensure I was happy it didn't look to ghastly Link to comment Share on other sites More sharing options...
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