willn
July 28th, 2016, 09:58 AM
So, I feel like I can get more out of my tune than I have right now, but that can be discussed further along in the thread.
Right now, I am having a couple of things that bother me with driving the truck. The first is that when I am in gear and rev to a high RPM, then as it falls back down to idle, it has a hard time regulating the idle. Sometimes (if I rev too high) it will actually stall coming back down to idle.
Secondly, it does this every time when I have the A/C on. I have played with the idle air tables like crazy. My VE is in line. This leads me to believe it could be something with the timing.
I have turned off the {B4358} A/C Torque Loss Spark Correction with no difference. My mods, log, and tune are below.
2001 LQ4 bored and stroked to 408.
317 Stock Heads with Comp Lifters and Comp Springs
Wiseco dished 4.030" 9.5:1 CR pistons
Comp 230/238 .600 .603 @ 114 (Spec'd by Comp to maintain towing ability)
Melling High Volume, High Flow Pump
Cloyes single timing set
All new sensors in the block.
Whipple 2300AX (about 6psi now)
Fully built 4L80E
Circle D 278mm 4L80E Torque Converter 2800 stall
Tru-Cool 40K Transmission cooler
1000cc at 43psi FIC Injectors, so with manifold referenced they are about 114lb/hr @ 58psi
Pacesetter 1-7/8" LTs Tri-Armor with true dual 3" custom system
Volant CAI with Scoop
Intercooler Kit - CX Racing 31x12x4
EFI Live V1 going to COS3 and SD tune.
34" Radiator w/ '05 Efans
Right now, I am having a couple of things that bother me with driving the truck. The first is that when I am in gear and rev to a high RPM, then as it falls back down to idle, it has a hard time regulating the idle. Sometimes (if I rev too high) it will actually stall coming back down to idle.
Secondly, it does this every time when I have the A/C on. I have played with the idle air tables like crazy. My VE is in line. This leads me to believe it could be something with the timing.
I have turned off the {B4358} A/C Torque Loss Spark Correction with no difference. My mods, log, and tune are below.
2001 LQ4 bored and stroked to 408.
317 Stock Heads with Comp Lifters and Comp Springs
Wiseco dished 4.030" 9.5:1 CR pistons
Comp 230/238 .600 .603 @ 114 (Spec'd by Comp to maintain towing ability)
Melling High Volume, High Flow Pump
Cloyes single timing set
All new sensors in the block.
Whipple 2300AX (about 6psi now)
Fully built 4L80E
Circle D 278mm 4L80E Torque Converter 2800 stall
Tru-Cool 40K Transmission cooler
1000cc at 43psi FIC Injectors, so with manifold referenced they are about 114lb/hr @ 58psi
Pacesetter 1-7/8" LTs Tri-Armor with true dual 3" custom system
Volant CAI with Scoop
Intercooler Kit - CX Racing 31x12x4
EFI Live V1 going to COS3 and SD tune.
34" Radiator w/ '05 Efans