Ok, onto the next challenge. Having a bit of a struggle getting Idle Air Dialed in and I had imagined that this would have been the "Easy Part".
Using the 'Arbitrary Values Option' and I get the impression from the behavior of the engine is a bit erratic, its stalling on clutch in coming to a stop. I've smoke tested and can't locate any leaks so I started thinking about something and hoping someone would be able to confirm my logic or slap me out of this unnecessary analysis cycle I'm looping through.
Here goes: While I'm running CBAZA and T4M2 as the base tune and strategy ... I've converted the intake tract to the GT40 Lower and use the Fox-Style TB, TB Cable and of course a Fox style IAC Valve.
Now ... for the GT40/Cobra Lower intake, I had a look in the stock J4J1 ISCTransfer and there are definitely differences between ISC Duty Cycle and Flowrates in FN8000 between J4J1 and T4M2. Now ... with my throttle plate set at what I think is the minimum the car will idle ... and a DSDRPM of 672 ... ISCDuty checks in at .15 steady (because it is up against the min ISC airflow clip). In the T4M2 ISC transfer, that translates into 0.120 lb/min. If I look at the J4J1 ISC Transfer 0.120 lb/min checks in at ~.35, if my interpolations/flow calculations are correct and I believe they are.
To Compound all of this ... I had a look in the A9L2 base tune ISC transfer where .120LB/Min checks in at .28 ISCDuty.
So ... my questions are, which ISCDuty value/transfer is correct and would I be able to port it over? My assumption is that the transfer from A9L2 should be most accurate as the Valve I'm using is a Fox valve. What else would need to change in T4M2 in order to port over the the values in FN800/8000 from A9L2? Am I completely going about this in the wrong way and ultimately the duty cycle doesn't matter?
Thanks in advance ...