got 2* of knock at the track, need some help
11-26-2012, 02:37 AM
#1
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Jul 2010
Location: CroSSby, TexaSS
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
got 2* of knock at the track, need some help A couple of Fridays ago i was doing some data logging at the track, i noticed 2* of knock @4000 rpm, map was @ 100 during that spike as well, i don't quite understand it yet but i uploaded my tune file and my data log, maybe you guys can show me a few pointers on what i should adjust to prevent this from happening, this pass was my best pass to date and resulted in an 11.73 @ 116mph with an lq4 370 fbody car.
thanks in advance guys, i'm off to some more late night reading
thanks in advance guys, i'm off to some more late night reading
11-26-2012, 09:33 AM
#2
You might be hurting your power curve looking at your flat timing. Set your scanner up to look more like a dyno, log your dynamic air & dynamic cylinder air. Use those airflow #'s as your HP & Torque curves just as you do on the dyno. Drag street is an awesome dyno.
Then remove the KR, maybe even reduce the timing in the peak torque area & you will most likely see the power improve.
What about a WB?
Then remove the KR, maybe even reduce the timing in the peak torque area & you will most likely see the power improve.
What about a WB?
11-26-2012, 12:08 PM
#3
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Jul 2010
Location: CroSSby, TexaSS
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
You might be hurting your power curve looking at your flat timing. Set your scanner up to look more like a dyno, log your dynamic air & dynamic cylinder air. Use those airflow #'s as your HP & Torque curves just as you do on the dyno. Drag street is an awesome dyno.
Then remove the KR, maybe even reduce the timing in the peak torque area & you will most likely see the power improve.
What about a WB?
Then remove the KR, maybe even reduce the timing in the peak torque area & you will most likely see the power improve.
What about a WB?
i will add those PID's shortly and see how they vary from log to log thank you.
11-26-2012, 02:48 PM
#5
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Jul 2010
Location: CroSSby, TexaSS
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
Do you know how to setup these PID's? im having a bit of trouble with setting up dynamic air, i believe i have dyn cyl air setup properly by adding the PID from the list.
11-26-2012, 08:09 PM
#7
TECH Enthusiast
Thread Starter
iTrader: (1)
Join Date: Jul 2010
Location: CroSSby, TexaSS
Posts: 554
Likes: 0
Received 0 Likes
on
0 Posts
stuff is confusing lol, i get that i need to have the scanner open with no logs running, but i can't for the life of me find those two PID's all i see is calculated air