VE Help still...

[PurplePiss]

If you have COT turned off, does the PE/COT spark adder not work?

What do you have your hot power enrich enable tps threshold vs rpm set to?

Stock is:
48,48,48,48,48,48,48,28,15,14,14,11,10,8,8,8,8

Mine is:
40,40,35,15,15,15,15,15,15,14,14,11,10,0,0,0,0

I also have PE enable set to:

Map 0
Map Hyst 0
Delay rpm 0
Enable RPM 0
RPM hyst 50
enrichment rate 2.0
COT turned off
Wise?

[EC_Tune]

The PE/COT adder works whenever one of those functions enables. Either one.

As to PE enable I left it stock on that 06 LS2 Vette.

You can leave the MAP & MAP Hyst values stock (I would as you want some hysteresis around the enable point.) And I usually use an enable RPM of about 100 as you are always above it and in some GM code a zero means not funtional. Not in this particular case but I have seen it before.
If you are racing regularly, turn off COT as it will only interfere with you running consistent times.

[gman4dx266]

thanks for that bit of logic relating efficiency and needed spark advance. No wonder i could run ~42* in some places on my 6cyl with no knock...it was inefficient. I knew it! :-P

[PurplePiss]

I plugged in the timing table you posted EC, then copied it to the LO table since I'm tuning VE right now. My VE table was pretty close and now that I pulled timing back, it is lean in a lot of areas. Make sense?

I am getting knock at WOT and the car doesn't pull as hard as when I command 11.5-12.0 AFR and 24-26* of timing. The calculated torque values are higher as well. Once in for all, I would like HPT to say whether the calculated torque PE is worth looking at?

If you saw these logs on your dyno, what would you do next? Richen it up a bit since it appears to be burning all the fuel? I would like to see some 400-410 torque numbers, but I can't seem to get there unless I run really fat and a lot of timing. Your comments are much appreciated.

[SSUte01]

[QUOTE=PurplePiss] The calculated torque values are higher as well. Once in for all, I would like HPT to say whether the calculated torque PE is worth looking at?
QUOTE]

I cannot give a conclusive answer to that question however my advice is that I would not rely on those figures as being indicative of actual torque. I have a custom PID that I use occasionally for shits and giggles that derives power from the PCMs 'Calculated Torque' and if this was accurate I would be one happy camper. But more to the point it isn't even a consistent indication that you are making more power/torque. I am not certain of all the calcs but one of them is rpm and it appears to have a linear relationship with rpms ie more rpm = more torque which is not necessarily so.

Long winded way of saying IMHO of course that I wouldn't use this PID to find out whether you are gaining or not. Dynamic airflow can be a better indication or dyn cyl air perhaps which I believe are part of the Calc torque anyways

As I understand it is mainly used to indicate the 'load' for the PCM for Torque Mgt and shifting etc. I may be way off but that is what I have found.

Would like to know a more conclusive answer myself

BTW - If you didn't alter your fuelling and lowered spark causing a leaner AFR sounds to me as though more fuel is being combusted and that is a step in the right direction IMO. Provided weather etc was the same.

Good Luck

[EC_Tune]

Looks like other than that slight bit of KR at 34-3800 RPM you're pretty close. WB O2 values look good to.
Be interesting to see how she runs at the track now.

Calculated torque is somewhat based on RPM & spark advance that you are running. Not sure if it's worth looking at for much of anything other than trans parameters which rely on it.

EC