99whitews6

iTrader: (2)

Wondering how everyone else separates their data to tune WOT PE? This is what I did:

1. Drive and Log
2. Export to Excel
3. Since PE mode enables above 26% TPS for any above 4400 RPM I deleted all data below 4400 RPM.
4. Delete all subsequent data below 26% TPS
5. Plot data on graph (Wideband AFR vs. Time)
6. Adjust accordingly

I just followed this sequence and I am at step 6. My graph is all between 14-14.75 AFT for this data. What is a good starting amount to decrease from my PE vs. RPM table to get closer to 13.1?

Anyone have a better way to tune PE WOT???

Thanks

P Mack

iTrader: (6)

Yes, the a/f ratio histogram.



What tuning program are you using?

SUPRYZE

Maybe asked a million times, but what is the ideal A/F ratio for P/E on a naturally aspirated engine?

Also, should I disable P/E to work on VE tables, or just tweak P/E for anything above 4400?

99whitews6

iTrader: (2)

So am I supposed to leave the commanded AFR at 14.7 like all those part throttle cells are. That histogram looks great!!

I read somewhere that you should tune EVERYTHING to 13.1. Any input on this?

Oh, Im using HPtuners and an LC-1.

02sierraz71_5.3

iTrader: (2)

I personnaly like better gas mileage and dont see the reasoning in running 13:1 when your at 1800 rpms and 15% tps just doesnt make sense. You dont need that much fuel until you wot.

Just my .02