EGT's for PTE54trim with 680cc's??

[turbo95dsm]

I just got my car together and have never used an EGT gauge or an SAFC. Here is my current setup:

93 AWD talon
6bolt JDM motor
PTE 54trim (from dejontool)
680cc injectors (from dejontool) *said these were PTE injectors
Walbrah 255 intank pump
4" Forced Performance intake
2g MAF
SAFC
Kenetic Motorsport FMIC
stock BOV
Greddy EGT gauge
Modine radiator
1375CFM spal slim fans (From RRE)

I'm running the lowest boost possible, which is 12-13psi.

Basically the question I have is, what should my EGT's be right now? I really need a datalogger but the TMO must have left with the Cacoon aliens cause they dont seem to be on Earth to return any form of contact that I have sent them in the past 3-6 months.

Here is what my EGT's are currently:
@idle: 400-500 C
@60mph in 5th gear cruise: 700-750C
@WOT all the way to redline in 2nd and 3rd: 790-800C

I need to look at my SAFC at redline too but I think its reading -15%. At idle it is -3% and at a cruise it is reading -5.6%.

If the SAFC is negative (-15%) does that mean that more fuel is added than the ECU knows about or that less fuel is there? I actually think that the COR is more referring to AIR not fuel, right? Can someone help me out?

THanks in advance,
Daniel

 

[GalantVR41062]

wideband 02 is the only way to tune a car, egt tunning is for deisels and/or rice boys. www.wbo2.com

~John

 

[dsm]

Originally posted by GalantVR41062
wideband 02 is the only way to tune a car, egt tunning is for deisels and/or rice boys. www.wbo2.com

~John

bull, i tuned my car only on egts and dynoed only 326whp on the HRC16g. just use everything u can, but tuning on wideband o2 rocks.

 

[NOSLO2PT0]

i've got an EGT gauge, but honestly prolly haven't looked at it but twice. I just don't have time to look at it, drive, AND watch the datalogger!!

I just use the logger and AFC to tune. Good enough for 119mph traps on pump gas. Oh, and screw O2 values. They are worthless as well.

 

[Violater101]

Size of your injector's should not affect your EGT's unless your running out of fuel. What you listed is the norm. I see 480-520 at idle and 700-740 cruising and I have 720's with a Green. As for going WOT, you want your EGT's to be around 860-870 with no knock for maximum performance imo. I'm conservatively tuned and see about around 810 max with 19psi with an A/F of 11.4:1.

 

[NOSLO2PT0]

According to my logger, I went faster with moer knock and less timing. I tuned all the knock out, got more timing, but the logs said i went slower. I'll have to verify at the track.

 

[psychlow]

If the SAFC is negative (-15%) does that mean that more fuel is added than the ECU knows about or that less fuel is there? I actually think that the COR is more referring to AIR not fuel, right? Can someone help me out?

Your EGT's look pretty decent. I'd wanna look at your knock count, though... I'd get that logger on there ASAP.

Second, as far as I understand it, the -15% means that the SAFC is reporting 15% less air to the ECU. This seems correct, as you have larger injectors than stock. If it were reporting the same amount of air to the ECU, they'd pulse the larger injectors the same way it would the stockers, which would result in running really rich.

 

[turbo95dsm]

Originally posted by psychlow
Your EGT's look pretty decent. I'd wanna look at your knock count, though... I'd get that logger on there ASAP.

Second, as far as I understand it, the -15% means that the SAFC is reporting 15% less air to the ECU. This seems correct, as you have larger injectors than stock. If it were reporting the same amount of air to the ECU, they'd pulse the larger injectors the same way it would the stockers, which would result in running really rich.

Thanks for the help