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View Full Version : Please check my Tune



DocZ28
December 13th, 2007, 02:15 PM
My car is a Camaro 2000 A4 it has Cam, heads, headers, Torque converter, LS6 Intake, 3.90 gears, yesterday it ran 11.62 N/A on the 1/4 mile. This is my best time I think is a good time for a DD car.

But here is the thing, It feel that when the engine starts making power comes the shift 1-2, and then 2-3, and I think I´m wasting that power.

I´m ussing the WB LC-1 and tune my VE table and I know I need more tuning time to get the LTFT close to zero. Any advise will be very good
And I need help to adjust the shift points.

Here are my log and tune.

TKS for your help

SOMhaveit
December 14th, 2007, 04:09 PM
Your IFR is a straight value across the board.

You are commanding 11:1 AFR @ WOT. Kind of rich.

VE values are a lot higher than my cammed ported LS6.

You didn't log actual AFR to compare to commanded.

DocZ28
December 14th, 2007, 04:26 PM
Oh yes Before I start with Efilive, a guy tune my car and made this, what is the correct value for IFR, my injectors are 28.8 lbs/hr.
AFR 11.1 @ wot is too rich, will be safe to use 12.5.
On the VE values I´m kind a confuse, that is the result of several tune times on SD. Could that be wrong? I have TB ported, my heads has 305 cfm intake and 260 cfm on ehx.

SOMhaveit
December 15th, 2007, 02:31 AM
Well, what I'm finding is that there's no "correct" value for IFR, but I would go back to the the stock tune values for IFR and the stock VE table + 10% as a starting point. I would probably go to holden crazy & look at one of the stock tunes for your car, compare & start the AutoVE process fresh.

These are my stock values for my 28.8 injectors.

LABELS Injector Flow Rate (Grams/Second)
Manifold Vacuum kPa {link: GM.MANVAC} Value
0 3.671875
5 3.695313
10 3.718750
15 3.742188
20 3.765625
25 3.781250
30 3.804688
35 3.828125
40 3.851563
45 3.875000
50 3.898438
55 3.914063
60 3.937500
65 3.960938
70 3.976563
75 4.000000
80 4.023438

joecar
December 15th, 2007, 10:34 AM
Can you log your LC-1 AFR and BEN...