EGT q&a here
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i need a EGT answer here please
Ok, heres the deal. I just installed my egt today cruzed around town a bit and decided to hit the interstate. so now im in 4th gear at about 70 not wot though so and look at me egt and it is reading about 1600 to 1625 and then i shifted then it droped back to 1400. So what gives I have not done much to performance other than 3/16 mod, silencer removal and k&n filter in the egt temp sensor by 4th cylinder on casting dot. I did see several places where they say to out it by 3rd cylinder, but I talked to a mechanic at subaru and he said due to the to the power pak that if you had one cylinder runnin lean your car would be missing. So i have 47k mi on my car and i have been runnin this car like the the whole time i have owned it other then you know breakin, what the heck is going on? would i reduce temp if i had uppipe with no cats, do run colder plugs help me out. I plan on doing much more to this car but i guess i'm late to the game, but i did want the gauges before i did any performance stuff. Thanks
oh also i have no cels ever, well one with silencer mod.
oh also i have no cels ever, well one with silencer mod.
Last edited by sjwwrx; Apr 2, 2004 at 10:15 PM.
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The uppipe doesn't really have anything to do with it. Ignition timing and air/fuel ratio determine it, along with engine load. EGTs are one of the reasons that the factory tune is rich. I would also remove the 3/16 mod. A reflash is a much safer way to go for picking up power.
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i do plan on doing full exhaust replacement, should i wait til i have done that before a reflash i do want to get a utech later also, i am wanting to go with a txs stage 2 with a helix uppipe and headers, within next 3 mo, with taking the 3/16 mod out what will that help i know that it will keep boost spikes down but is the anything else? I did hit 15psi on my boost peak today. thanks!
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If you are getting your reflash done locally, talk to them about what they think. Most tuners will give free retunes if you buy your replacement parts from them, or charge around $100 for remapping if you get the parts elsewhere. Also, if you're getting a reflash, there's really no reason to get a Utec, or vice versa.
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No shops around here 
So no breaks there, but your saying that if i get a utec then there will be no need for reflashing, just get different mapping systems. I'm new to this like most people so sorry for the lack of knowledge, guess that the reason most of post on the forums
So no breaks there, but your saying that if i get a utec then there will be no need for reflashing, just get different mapping systems. I'm new to this like most people so sorry for the lack of knowledge, guess that the reason most of post on the forums
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You could still get a reflash and use Delta Dash with User Tune to upload new maps when you change mods. Again, many shops will give free retunes when you buy the parts through them. Other options include AccessPort and of course the Utec. My personal order of preference is EcuTek reflash, AccessPort, then Utec.
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Originally posted by chyknees
Where is the best placement for the probe?? between 1&3 or 2&4. (I think i got that right) And should it be done on the casting dot that is there?
Where is the best placement for the probe?? between 1&3 or 2&4. (I think i got that right) And should it be done on the casting dot that is there?
i just put my egt in yesterday. I have seen many people go back and forth with this. I read on nasioc by doing a search the the reason to put the egt sensor in the mainfold is to get the temperature of the gases coming right out of the motor. I also saw that why people choose 3 or 4th cylinder is that it is towards the end of the fuel rail. The reason why i went with the dot on the manafold on the drivers side is that it is easier to take off. Your just have 3bolts out of the heat shield and 3 where the manafold meets the motor and the 2 that are in the crossover pipe. it took about an hour to do, just make sure that you use pbblaster or wd-40 on the bolts. hop this helps and any more ?'s let me know.
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Car Info: 92 legacy turbo 5-speed,98forester S 4AT
I'm going to be running my EGT in the up-pipe too because my CES Racing up-pipe is pre bunged there for it already.
Hey mexicanpizza, do you really think the exhaust gases cool that much from the #3 port to the up-pipe? I don't, that is unless you have inadaquate heat shielding.
Hey mexicanpizza, do you really think the exhaust gases cool that much from the #3 port to the up-pipe? I don't, that is unless you have inadaquate heat shielding.