Guy's,been looking into EGT gauges for a while now, is there any advantages to having one ? If so where does everyone mount the bung,I see some put the EGT probe where the stock O2 sensor is and relocate the stock O2 sensor to the DP.In doing this does it cause any drive ability problems for a street car ? I am a novice tuner and think the more info I have the easier it will be for me to tune.Since I am going to install a wideband system this year anyway I would have my welder install an extra bung for the EGT gauge, if it is worth it.Also which EGT gauge is the best for our cars ? Thanks,ikle.
Advantages of having a EGT gauge
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xrunner123
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If you're getting a wideband just get an AFR gauge to go along with it.
I think EGT is considered old school now.
I think EGT is considered old school now.
^^^ He is correct
An exhaust gas temperature gauge (EGT gauge) is an automotive meter used to monitor the exhaust gas temperature of an internal combustion engine or rotary engine in conjunction with a thermocouple-type pyrometer. By monitoring EGT, the driver can get an idea of the car's air-fuel ratio. At a balanced air-fuel ratio, the exhaust gas temperature is lower than that in a lean or rich air-fuel ratio. High temperatures (typically above 1600 degrees F) can be an indicator of dangerous conditions that can lead to catastrophic engine failure.
This meter is most used in tuning turbo-equipped cars. If the sensor is installed at the manifold collector before the turbo, the turbine inlet temperature can be monitored. If the sensor is installed after the turbo, the exhaust temperature can be monitored. Because EGT will typically drop 200-300 degrees F across the turbine, installers in general will try to put the thermocouple as close to the cylinder head as possible to give a true reading that will require less mental math to read properly, and a reading that will react faster to the engine's condition compared to an installation after the turbo.
Using an EGT alone is considered an older technique for getting the most out of an engine, as a gauge-type wideband digital oxygen sensor can be purchased for about the same price, or for a little more. However, some advanced racers will use EGT gauges in combination with a wideband oxygen sensor to 'lean' the fuel ratio a bit to safely raise the temperature for more power.
An exhaust gas temperature gauge (EGT gauge) is an automotive meter used to monitor the exhaust gas temperature of an internal combustion engine or rotary engine in conjunction with a thermocouple-type pyrometer. By monitoring EGT, the driver can get an idea of the car's air-fuel ratio. At a balanced air-fuel ratio, the exhaust gas temperature is lower than that in a lean or rich air-fuel ratio. High temperatures (typically above 1600 degrees F) can be an indicator of dangerous conditions that can lead to catastrophic engine failure.
This meter is most used in tuning turbo-equipped cars. If the sensor is installed at the manifold collector before the turbo, the turbine inlet temperature can be monitored. If the sensor is installed after the turbo, the exhaust temperature can be monitored. Because EGT will typically drop 200-300 degrees F across the turbine, installers in general will try to put the thermocouple as close to the cylinder head as possible to give a true reading that will require less mental math to read properly, and a reading that will react faster to the engine's condition compared to an installation after the turbo.
Using an EGT alone is considered an older technique for getting the most out of an engine, as a gauge-type wideband digital oxygen sensor can be purchased for about the same price, or for a little more. However, some advanced racers will use EGT gauges in combination with a wideband oxygen sensor to 'lean' the fuel ratio a bit to safely raise the temperature for more power.
chopped39
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Get both. How many guys on here have had wideband's fail with racing gas? The pyrometer is a nice addition to protect your investment
Jerryl
Tall Unvaccinated Chinese Guy
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If you ;
1. Have to pick between EGT and WB, pick the WB.
2. Have no way of recording a run, pick the WB.
3. Can record with something like PL
, get both the EGT and WB. The analyis of the sum of the data can tell you more than a WB alone can. 
1. Have to pick between EGT and WB, pick the WB.
2. Have no way of recording a run, pick the WB.
3. Can record with something like PL
, get both the EGT and WB. The analyis of the sum of the data can tell you more than a WB alone can. I have a PowerLogger that I have yet to install and I am going to purchase a wide band system soon.So when I do buy a EGT gauge should I put the EGT probe where the stock O2 sensor is and relocate the stock O2 sensor to the down pipe? If this is correct is there any drive ability issues by doing this? Just need to figure this out so I can get my O2 bungs welded in.Thanks,ikle.
I don't think the stock O2 will get hot enough in the down pipe to light off.
Customary location for the EGT is in the mainfold before the turbo
There was a scenario described here (don't remember exactly) where if you had both you could disgingush between a lean misfire and a plug bad if you had both.
Plus I've always kept on in the car just to monitor EGT"s so I can give the turbo time to cool off after a run. Maybe it's a relic from my Aviation Mechanic uncle.
Plus I've always kept on in the car just to monitor EGT"s so I can give the turbo time to cool off after a run. Maybe it's a relic from my Aviation Mechanic uncle.
Just a Six??
OK! Who Farted??
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I have the same EGT (now hooked to PL) & a WB just an inch before the firewall.
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