How do you read a EGT gauge? What is normal temp
06-08-2001, 01:52 PM
#1
and what is abnormal. What does it mean if it falls below XX temp and what does it mean if it goes above XX temp? Thanks I believe one means you running to rich and one too lean, which is which? Thanks
06-08-2001, 04:43 PM
#3
Originally posted by The New CLIMAX
and what is abnormal. What does it mean if it falls below XX temp and what does it mean if it goes above XX temp? Thanks I believe one means you running to rich and one too lean, which is which? Thanks
and what is abnormal. What does it mean if it falls below XX temp and what does it mean if it goes above XX temp? Thanks I believe one means you running to rich and one too lean, which is which? Thanks
06-11-2001, 09:54 AM
#5
Originally posted by got rice?
you want to stay below 900 deg C. Normal operating temperatures depends on the mods. More power = higher temps. Generally, cars operate around 750-800 deg C.
you want to stay below 900 deg C. Normal operating temperatures depends on the mods. More power = higher temps. Generally, cars operate around 750-800 deg C.
Hmm that is interesting, I usually run about 500 deg, and while driving a while under normal conditions I run about 1000 deg. hmm what does this mean? Thanks
06-11-2001, 11:11 AM
#6
Originally posted by The New CLIMAX
Hmm that is interesting, I usually run about 500 deg, and while driving a while under normal conditions I run about 1000 deg. hmm what does this mean? Thanks
Hmm that is interesting, I usually run about 500 deg, and while driving a while under normal conditions I run about 1000 deg. hmm what does this mean? Thanks
But you could be getting some light detonation or you could be way too rich and fuel is burning in your exhaust manifold.
What does it read after a 1-3 gear blast?
Where is your EGT probe mounted?
Is your gauge in F or C?
06-11-2001, 02:05 PM
#7
Originally posted by The New CLIMAX
Hmm that is interesting, I usually run about 500 deg, and while driving a while under normal conditions I run about 1000 deg. hmm what does this mean? Thanks
Hmm that is interesting, I usually run about 500 deg, and while driving a while under normal conditions I run about 1000 deg. hmm what does this mean? Thanks
sounds like you're running too lean at WOT (open loop) - you should increase your fuel supply.
06-11-2001, 02:16 PM
#8
Originally posted by got rice?
geez.. you must be running very rich in closed loop or your car isn't making much power
sounds like you're running too lean at WOT (open loop) - you should increase your fuel supply.
geez.. you must be running very rich in closed loop or your car isn't making much power
sounds like you're running too lean at WOT (open loop) - you should increase your fuel supply.
Hmm this may be why I am running to low PSI?
I am using the stock disc which I think is either 12:1, or 10:1 ratio in the FMU, but Loren told me that that is way to rich, and he ran best a 6:1 with his stock boost? Could I be loosing boost for this reason?
My gauge is in F
I am not sure where the probe is mounted I think its in the stock y-pipe but I could be mistaken.
If I am running to lean then that would be the opposite of what loren's experience is,hmmmm. I guess the best way for me to find out is to dyno.
06-11-2001, 02:26 PM
#9
Moderator running more PSI than all the boosted Maximas... combined
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Join Date: Aug 2000
Posts: 6,345
If the gauge in F, then your temp is really low. My car hit up 1400 during NA run to about 85mph. This is after the car is warm up already. My probe is in the Y-pipe. Your best bet is run the car on the dyno with wideband o2 sensor. Find out what A/F ratio you are running at. My guess you are way too rich. As for low PSI, that's something else. You have a leak somewhere or the damn blower is bad. Check the BOV or get one that can hold the boost better. You might have more than one problem. Going fast takes time. Be patient and you will work out the kinks.
06-11-2001, 03:23 PM
#10
Originally posted by 1MAX2NV
If the gauge in F, then your temp is really low. My car hit up 1400 during NA run to about 85mph. This is after the car is warm up already. My probe is in the Y-pipe. Your best bet is run the car on the dyno with wideband o2 sensor. Find out what A/F ratio you are running at. My guess you are way too rich. As for low PSI, that's something else. You have a leak somewhere or the damn blower is bad. Check the BOV or get one that can hold the boost better. You might have more than one problem. Going fast takes time. Be patient and you will work out the kinks.
If the gauge in F, then your temp is really low. My car hit up 1400 during NA run to about 85mph. This is after the car is warm up already. My probe is in the Y-pipe. Your best bet is run the car on the dyno with wideband o2 sensor. Find out what A/F ratio you are running at. My guess you are way too rich. As for low PSI, that's something else. You have a leak somewhere or the damn blower is bad. Check the BOV or get one that can hold the boost better. You might have more than one problem. Going fast takes time. Be patient and you will work out the kinks.
06-11-2001, 09:06 PM
#11
Originally posted by The New CLIMAX
Hmm this may be why I am running to low PSI?
I am using the stock disc which I think is either 12:1, or 10:1 ratio in the FMU, but Loren told me that that is way to rich, and he ran best a 6:1 with his stock boost? Could I be loosing boost for this reason?
My gauge is in F
I am not sure where the probe is mounted I think its in the stock y-pipe but I could be mistaken.
If I am running to lean then that would be the opposite of what loren's experience is,hmmmm. I guess the best way for me to find out is to dyno.
Hmm this may be why I am running to low PSI?
I am using the stock disc which I think is either 12:1, or 10:1 ratio in the FMU, but Loren told me that that is way to rich, and he ran best a 6:1 with his stock boost? Could I be loosing boost for this reason?
My gauge is in F
I am not sure where the probe is mounted I think its in the stock y-pipe but I could be mistaken.
If I am running to lean then that would be the opposite of what loren's experience is,hmmmm. I guess the best way for me to find out is to dyno.
Since you have the probe further down in the exhaust stream, your actual exhaust temps are understated. It's probably a few degrees higher (20-30 deg F).
06-12-2001, 06:21 AM
#12
Originally posted by got rice?
ah okie. 1400 deg F is about 760 deg C so you are not running lean.
Since you have the probe further down in the exhaust stream, your actual exhaust temps are understated. It's probably a few degrees higher (20-30 deg F).
ah okie. 1400 deg F is about 760 deg C so you are not running lean.
Since you have the probe further down in the exhaust stream, your actual exhaust temps are understated. It's probably a few degrees higher (20-30 deg F).
I will keep this in mind Phuong.
06-12-2001, 07:10 AM
#13
Moderator running more PSI than all the boosted Maximas... combined
iTrader: (5)
Join Date: Aug 2000
Posts: 6,345
Yeah he's not running lean at all. If anything, he's running rich. I would take care of the boost problem first and then dyno tune the car. You probably will need a new FMU to lean it out a bit. This way you will get the most power out of your SC. Isn't Loren in your area? I would really get with him or the shop he works with.
Originally posted by got rice?
ah okie. 1400 deg F is about 760 deg C so you are not running lean.
Since you have the probe further down in the exhaust stream, your actual exhaust temps are understated. It's probably a few degrees higher (20-30 deg F).
ah okie. 1400 deg F is about 760 deg C so you are not running lean.
Since you have the probe further down in the exhaust stream, your actual exhaust temps are understated. It's probably a few degrees higher (20-30 deg F).
06-12-2001, 08:48 AM
#14
Originally posted by 1MAX2NV
Yeah he's not running lean at all. If anything, he's running rich. I would take care of the boost problem first and then dyno tune the car. You probably will need a new FMU to lean it out a bit. This way you will get the most power out of your SC. Isn't Loren in your area? I would really get with him or the shop he works with.
Yeah he's not running lean at all. If anything, he's running rich. I would take care of the boost problem first and then dyno tune the car. You probably will need a new FMU to lean it out a bit. This way you will get the most power out of your SC. Isn't Loren in your area? I would really get with him or the shop he works with.
Well bought the diff. fuel disc to lean it out a bit, but I also have a S-AFC connected so that I can adj accordingly if needed. As you stated 1MAX I will be looking for the leak before I try other things.
Maybe my lines for the boost is not at a good place, I tried a diff gauge and same thing happens?
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