Help With tune please
Thread Starter
On The Tree
Joined: Jun 2015
Posts: 113
Likes: 12
From: Hopewell Junction NY
Help With tune please My car is a cammed 228 -232 112 lsa fast 92 NW 92 MM Tb stalled A4 auto. The problem Im having is the car has a very hard time after a rev in park/ neutral it cant find idle. It usually undershoots and sometimes will stall. I went back to the stock idle spark map and its gotten better but still not feeling warm and fuzzy. My question is should I mess with adaptive spark over and under tables? What has worked for you guys with these cammed ls1? I have a wideband and dialed in my VE the best I could also using the STFT method. I also dialed in my RAF and IAC effective table. I will post my tune. IF someone could give me any tips or help it would surely be amazing! Ive been to a mail order tuner and 2 local tuners with no luck getting the drivability that I desire. I was done with wasting my money so Ive taken the tuning upon myself. I will attach tune. I have it in speed density mode right now. Want to get this dialed in before I work with MAF. Thank you BTW its hp tuners software
TECH Fanatic
Joined: Jan 2018
Posts: 1,059
Likes: 198
If you rev it while stopped with the transmission in drive, what happens?
I'm probably gonna have more questions than answers, as I'm struggling with similar issues in my manual C5. But, if you have this problem in park/neutral and not in drive, that could be an interesting clue.
I'm probably gonna have more questions than answers, as I'm struggling with similar issues in my manual C5. But, if you have this problem in park/neutral and not in drive, that could be an interesting clue.
Thread Starter
On The Tree
Joined: Jun 2015
Posts: 113
Likes: 12
From: Hopewell Junction NY
If you rev it while stopped with the transmission in drive, what happens?
I'm probably gonna have more questions than answers, as I'm struggling with similar issues in my manual C5. But, if you have this problem in park/neutral and not in drive, that could be an interesting clue.
I'm probably gonna have more questions than answers, as I'm struggling with similar issues in my manual C5. But, if you have this problem in park/neutral and not in drive, that could be an interesting clue.
Hey its only in P/N for me . I have auto car
Thread Starter
On The Tree
Joined: Jun 2015
Posts: 113
Likes: 12
From: Hopewell Junction NY
I posted my log and injector data. mods stock LS1 with 228/232 PAT G stage 2 cam 112+4. ported stock perimeter style heads. upgraded .660 valve springs, oil pump etc.. Johnson lifters, Fuel injection connection 42LB injectors, RPM speed fuel pump, NW 92 MM TB, SLP MAF, FAST 92 intake manifold, KOOKS headers with cats. YaNK SS3600 converter , FLT built 4L60E, sock 3:23 rear Best ET 11.73
TECH Fanatic
Joined: Jan 2018
Posts: 1,059
Likes: 198
Some of the idle tables allow you to configure P/N and Drive separately, so it might be helpful to use the Drive values as a reference when working on the P/N values.
The proportional and integral feedback tables, for example, and the target airflow table.
Also throttle follower and throttle cracker. I'd try to minimize those (or at least, no more than stock) and focus on the tables above, but I've also found it helpful to use extra follower airflow to slow down the transition to idle while working on the other tables.
The proportional and integral feedback tables, for example, and the target airflow table.
Also throttle follower and throttle cracker. I'd try to minimize those (or at least, no more than stock) and focus on the tables above, but I've also found it helpful to use extra follower airflow to slow down the transition to idle while working on the other tables.
