E92 help

[Cwalt50]

Hi I'm new to the gas tuning side of efi live. I use efi live to tune diesels. My dad just got a 15 chevy 1500 and I would like to tune it for him. Any help suggesetions ideas would be great and appreiceated. Thanks in advance.



Cliff

[tblu92]

The E92 is a whole new can of worms in tuning from previous LS engines
Short version---- The key tables on an E92 is the Torque Response tables
Simply on an E92 all you have to do is "ASK " the ECM to make more HP/TQ and it will self adjust both timing and fueling on it's own-
There are 3 TQ response tables--make them all equal--
From about 74% TPS on-- input like 400 KW into the tables---(this is about 525 HP)
Then from about 30% TPS until the 74% ADD about 33% to the entire rest of the table from 0 MPH til the end
Realize this table is scaled by MPH and Throttle position----
Keep adding some % from 30% on up to 74 %--If you add too much the shifts will become too crazy firm
The rest of the tuning on an E92 is still the same as a LS engine
Desensitize the IAT tables and the ECT tables in the spark section
Leave the STOCK timing tables alone--simply copy and paste the HI Oct table into the LOW Oct table
Leave the "final minimum timing tables" stock

In the fuel section set the PE ramp in fuel rate to 1.98 and the ramp out to 1.25
Eliminate the PE mode delay system

[Cwalt50]

Awesome thanks

Cliff

[tblu92]

Let me know how these simple changes work-----There are other more complicated changes that can be massaged but most do not add much in acceleration ---Is your car an Auto trans or a Manual trans ?

[Cwalt50]

It’s in my dads 15 Silverado 4x4 and it’s auto

[Cwalt50]

How do ya desensitize the iat and ect table?


Cliff

[Mjayjr]

Sorry for the newbie questions, but,
-when you say make all them all equal do you mean literally from 74%-100% and down from 0-180 all the same?
I just made changes(added 30% to the highest # in each column and copied that to the entire column) to each column
-what do you mean by desensitize?
Do you have an example of a tune? Maybe a stock and modified file?

Anything else you'd recommend?

Thanks!
Mike

[joecar]

Post a log file showing the pids MAP, MAF, RPM, ETCTP, IAT, ECT, LONGFT1/2, LAMBDA (these are all SAE.xxxx pids) and KR, SPARKADV (these are GM.xxxx pids).

[Mjayjr]

Post a log file showing the pids MAP, MAF, RPM, ETCTP, IAT, ECT, LONGFT1/2, LAMBDA (these are all SAE.xxxx pids) and KR, SPARKADV (these are GM.xxxx pids).


Will do today, thanks Joe����

[joecar]

Also log BARO...

we'll need it to calculate MAP:BARO ratio used for looking up some tables.

[joecar]

Also SHRTFT1/2 and HO2S11 and 21 (i.e. bank 1 and 2 sensor 1).

[tblu92]

Sorry for the newbie questions, but,
-when you say make all them all equal do you mean literally from 74%-100% and down from 0-180 all the same?
I just made changes(added 30% to the highest # in each column and copied that to the entire column) to each column
-what do you mean by desensitize?
Do you have an example of a tune? Maybe a stock and modified file?

Anything else you'd recommend?

Thanks!
Mike
TQ Response tables ( make all 3 the same)
YES From 74 TPS up to 100 TPS all the way DOWN to the end 180 MPH enter like 400 KW (equal to about 500 HP)
THEN from 30 % TPS up to 74% TPS ADD approx 30% to those rows again all the way down to 180 MPH
Desensitizing the IAT timing deducts means removing some of those IAT deducts of timing Sort of hard to explain
If you like E Mail me your STOCK and TUNED files and let me look at then
tblu@sbcglobal.net