Give My Idle logs a look please.)231/237)
#1
Give My Idle logs a look please.)231/237)
Hi, I took a short log in the Driveway
The Car Cold starts well, It does give me about 5 to 10 seconds of Surging and BS when I am Hot starting it. I am pretty happy with it overall, I think that the o2's and the Ltrims are a little high, do they really matter at Idle. Mostly I just want to Make sure I am not Washing down the Cylinders at Idle, and I wouldn't mind cleaning up the hot starts a little.
IAC Park Position: all points from 40C and up to 21
Idle Air In Gear: All points 60C and up to 8.6
Main VE Table: 400 rpm by 60%/ column 800 by 80%/ column 1200 by 90%
High Octane Table: Add 2 deg to all points 400 to 1000 RPM, .08 to .32 g/sec
I have also taken another 95% chop of the three VE tables above.
Idle is set to 850 RPM
I have a 231/237 cam, Stock untouched throttle body, long tubes, and the car is a 6 speed, I also have a ZO6 MAF.
Autotap log
comma separated
I appreciate the help guys,
Aaron
The Car Cold starts well, It does give me about 5 to 10 seconds of Surging and BS when I am Hot starting it. I am pretty happy with it overall, I think that the o2's and the Ltrims are a little high, do they really matter at Idle. Mostly I just want to Make sure I am not Washing down the Cylinders at Idle, and I wouldn't mind cleaning up the hot starts a little.
IAC Park Position: all points from 40C and up to 21
Idle Air In Gear: All points 60C and up to 8.6
Main VE Table: 400 rpm by 60%/ column 800 by 80%/ column 1200 by 90%
High Octane Table: Add 2 deg to all points 400 to 1000 RPM, .08 to .32 g/sec
I have also taken another 95% chop of the three VE tables above.
Idle is set to 850 RPM
I have a 231/237 cam, Stock untouched throttle body, long tubes, and the car is a 6 speed, I also have a ZO6 MAF.
Autotap log
comma separated
I appreciate the help guys,
Aaron
#2
TECH Junkie
iTrader: (36)
It appears from that file the IAC's are in the 110 range, too high IMO. Also is that after the car is warmed up? Try and only log the parameters you only want to look at like these:
Throttle position angle
LTFT Bank 1 and Bank 2
RPM
FTC
Spark Advance (timing)
KR
Intake Air Temperature
IAC counts
MAP (kpa)
MAF (gm/s)
From looking at your file it looks like your ltrims are way out of wack, which with some adjustment on your IFR table will take care of later.
Throttle position angle
LTFT Bank 1 and Bank 2
RPM
FTC
Spark Advance (timing)
KR
Intake Air Temperature
IAC counts
MAP (kpa)
MAF (gm/s)
From looking at your file it looks like your ltrims are way out of wack, which with some adjustment on your IFR table will take care of later.
#3
Originally Posted by Heavy Metal
Hi, I took a short log in the Driveway
The Car Cold starts well, It does give me about 5 to 10 seconds of Surging and BS when I am Hot starting it. I am pretty happy with it overall, I think that the o2's and the Ltrims are a little high, do they really matter at Idle. Mostly I just want to Make sure I am not Washing down the Cylinders at Idle, and I wouldn't mind cleaning up the hot starts a little.
IAC Park Position: all points from 40C and up to 21
Idle Air In Gear: All points 60C and up to 8.6
Main VE Table: 400 rpm by 60%/ column 800 by 80%/ column 1200 by 90%
High Octane Table: Add 2 deg to all points 400 to 1000 RPM, .08 to .32 g/sec
I have also taken another 95% chop of the three VE tables above.
Idle is set to 850 RPM
I have a 231/237 cam, Stock untouched throttle body, long tubes, and the car is a 6 speed, I also have a ZO6 MAF.
Autotap log
comma separated
I appreciate the help guys,
Aaron
The Car Cold starts well, It does give me about 5 to 10 seconds of Surging and BS when I am Hot starting it. I am pretty happy with it overall, I think that the o2's and the Ltrims are a little high, do they really matter at Idle. Mostly I just want to Make sure I am not Washing down the Cylinders at Idle, and I wouldn't mind cleaning up the hot starts a little.
IAC Park Position: all points from 40C and up to 21
Idle Air In Gear: All points 60C and up to 8.6
Main VE Table: 400 rpm by 60%/ column 800 by 80%/ column 1200 by 90%
High Octane Table: Add 2 deg to all points 400 to 1000 RPM, .08 to .32 g/sec
I have also taken another 95% chop of the three VE tables above.
Idle is set to 850 RPM
I have a 231/237 cam, Stock untouched throttle body, long tubes, and the car is a 6 speed, I also have a ZO6 MAF.
Autotap log
comma separated
I appreciate the help guys,
Aaron
Did you bump the timing in the Base spark tables and High/Low Octane tables??
#4
HC02SS,
I do need to redo my Cfg file,
"From looking at your file it looks like your ltrims are way out of wack, which with some adjustment on your IFR table will take care of later."
My Ltrims are between -6 and 0 during cruise, and lock to 0 at WOT, But you're right they are out of whack at idle. I don't understand why.
Bink, I have not bumped the base spark table, I have bumped the High octane by 5 degrees. I am also thinking about putting my stock MAF back on, as I am not sure which MAF table I should be using for the 85mm one, right now I am using the stock MAF table.
Thanks a bunch,
Aaron
I do need to redo my Cfg file,
"From looking at your file it looks like your ltrims are way out of wack, which with some adjustment on your IFR table will take care of later."
My Ltrims are between -6 and 0 during cruise, and lock to 0 at WOT, But you're right they are out of whack at idle. I don't understand why.
Bink, I have not bumped the base spark table, I have bumped the High octane by 5 degrees. I am also thinking about putting my stock MAF back on, as I am not sure which MAF table I should be using for the 85mm one, right now I am using the stock MAF table.
Thanks a bunch,
Aaron
#5
Just a note...Bumping up the Base spark table in idle range will help smooth the car out a bit and make it feel responsive. I just did this to my tune. I did notice that I prob need to richen up the 1-2k rpm ranges as i now have more bucking at very low speed. I'll prob use the VE table to add some more fuel down there.
#7
Originally Posted by SloppyRob
Just a note...Bumping up the Base spark table in idle range will help smooth the car out a bit and make it feel responsive. I just did this to my tune. I did notice that I prob need to richen up the 1-2k rpm ranges as i now have more bucking at very low speed. I'll prob use the VE table to add some more fuel down there.
I'll try bumping up the Idle to 900 as well
I wont be back in town until monday but I'll let you guys know..
Aaron