Running SD, I completely removed the stock intake plumbing and replaced it with an open pipe. A very dramatic change I noticed is the airmass vs rpm has dramatically decreased, so now my spark tables are way off. In other words, before at 6,000 rpm my airmass was around .72 g/cyl, now it's around .4 g/cyl. Is this normal?
if it's exactly half of what it used to be it's a known bug, means you're logging maf stuff when in SD. it's really annoying as i tune MAF in SD, but oh well, another 18 months and it will be fixed...
it would be nice to hear comments from hpt on this . . .
why? If you search you will find answers for it.Originally Posted by tx01z
Sulski Performance Tuning
2000 WS6 M6 - LS6 (long block, refreshed top end), 10.8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4.11s
2018 Sierra SLT 5.3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB
