Need an open loop fuel table!
Does anyone have a realy good open loop fuel table that I can use for a 2002 383 Stroked Camaro B3647 commanded fuel vs RPM. I am running Semi Open loop SD and really need a good table to start with doing my BEN Factors for the VE. I am not real sure where to add fuel according to load in the table and what that fuel number should be. I am currently knocking a bunch and the car is a bit sluggish so I am pretty sure it needs alot more work! Any help would be great! Thanks!
What is the barometric pressure (in kPa) at your location (what does MAP say at key on engine off)...?
Scantool: on PIDs tab, on SAE.MAP do rightclick->Metric.
Tunetool: set your fueling units to EQ.
B3647: set last 3 columns (starting before the column matching your baro) to EQ 1.16, set all other cells to 1.01 (to avoid SOL).
B3618: set to EQ 1.16.
B3616: below 3200 set to 65%, from 3200 and up set to 35%.
B3608, B3609: set to zero.
[ you're NA (no boost, no nitrous), right...? ]
Is your B0101 table stock...? If so then increase it by 10%.
Then do one iteration of AutoVE, apply filter, paste-multiply BEN map into B0101, view the difference (how much was it?).
Post your log/tune files (indicate which log comes from which tune).
According to my log its 97 kpa at engine off. The car is N/A. B0101 is not stock. Its been factored with a very very lean OL fuel table, thats why I have had so many issues. I have added some fuel in the cruising area but I need to start over with a better OL fuel table. As soon as I get the LM2 hooked up I will redo it. As for now I have been adding fuel according to the STFT just to get it in the ball park of 1.0! I am not positive on the KPA at key off, I will look here in a bit just to verify.
Last edited by 1fastgto; July 15th, 2011 at 05:40 AM.
Ok, so your BARO is very close to 100kPa, then do this:
B3647: set last 3 columns to EQ 1.16.
B3618: set to EQ 1.16.
B3616: below 3200 set to 65%, from 3200 and up set to 35%.
B3608, B3609: set to zero.
Temporarily enable CL/LTFT, and get your Closed Loop trims to correct whichever parts of B0101 that you can (while maintaining Closed Loop), and then using eyeball/handraulic method extrapolate the trend to the upper areas of B0101.
Just installed the correct 36# injectors today aswell as set up the wide band and tune, will see how it goes! as of right now i was getting anywhere from 150 to 170 miles per tank! Thats just terible! I scalled injectors as well. Does anyone have a 36# scale so I can make sure they are right?
Use the spreadsheet mentioned in the first line of this thread: Calculating-Injector-Flow-rate
Also take note the difference in IFR table if you have a MAP-referenced FPR or a non-referenced FPR.
Thanks, I have the ford 30# injectors they are 3 bar 43.5, so at 4 bar 58 the table would look like this:
lb/min
0.577360
0.580959
0.584535
0.588089
0.591622
0.595134
0.598626
0.602097
0.605548
0.608980
0.612393
0.615786
0.619161
0.622518
0.625857
0.629178
0.632481
OK, heres where I am lost a bit, how do you want me to enable closed loop and correct B0101? The only thing I have ever done is BEN factor with a wideband. Lost just a bit on how to do it with CL. Also I have cats so I have the front o2 sensor before the cat pulled out and my widband in there. If I enable CL I will have to put the O2 in the front and put the wideband after the cat. Thanks!Originally Posted by joecar
Weld another bung in front of the cat. A wideband does not get installed after the cat.
1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.
Put wideband in front next to front NBO2, weld a new bung on as slow10 said.
Set B3801 to enable, set B4205 to stock, enable the MAF... then do the Calc.VET tutorial:
A-New-Twist-on-CALC.-VE-Table..Computing-the-Entire-VE-Table.
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