Actual SA Flaws?
08-01-2006, 05:27 PM
#1
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Car: 1992 Camaro RS - not real slow anymore...
Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram
Transmission: T5 untill it blows up from to much torque
Axle/Gears: Ford 9" /w auburn pro & 3.89's
Actual SA Flaws?
I don't understand why my timing is so far off from my main SA Table.
Base Timing set at 6d BTDC
Base Timing in bin file set at 6d
PE spark dissabled
Lets say at 32LV8 and 800RPMS, the timing is 26d advanced in the main SA Table. The engine is at 190 degrees in Closed Loop. For that particular temperature in the spark correction table (Lv8 vs coolant), I have the value of zero entered.
So, sinced the lv8 vs coolant table is zero'd out and my base timing is set correctly, why is tunerpro displaying my timing as 8.79d advanced? Before I zero'd this table out, timing was less than 3d advanced!!!
BTW, this applied to all rpm's and loads. I just picked one for an example. Now, the last thing I did before noticing this was change the scale of the main SA table, I changed 4800RPMS to 4500 and added 5000, 5500, 6000, 6500, and 7000.
My current SA table. 6E Bin
Base Timing set at 6d BTDC
Base Timing in bin file set at 6d
PE spark dissabled
Lets say at 32LV8 and 800RPMS, the timing is 26d advanced in the main SA Table. The engine is at 190 degrees in Closed Loop. For that particular temperature in the spark correction table (Lv8 vs coolant), I have the value of zero entered.
So, sinced the lv8 vs coolant table is zero'd out and my base timing is set correctly, why is tunerpro displaying my timing as 8.79d advanced? Before I zero'd this table out, timing was less than 3d advanced!!!
BTW, this applied to all rpm's and loads. I just picked one for an example. Now, the last thing I did before noticing this was change the scale of the main SA table, I changed 4800RPMS to 4500 and added 5000, 5500, 6000, 6500, and 7000.
My current SA table. 6E Bin
Code:
32 48 64 80 96 112 128 144 160 176 192 208 7000 37 40 42 41 38 36 35 33 30 28 28 27 6500 37 40 42 41 38 36 35 33 30 28 28 27 6000 37 40 42 41 38 36 35 33 31 30 29 28 5500 37 43 46 45 40.5 38.5 37.5 35.5 34 31.5 30.5 29.5 5500 38 44 46 45 40.5 38.5 37.5 35.5 34 31.5 30.5 29.5 4500 38 44 46 45 40.5 38.5 37.5 35.5 32 31 30 29 4000 38 44 45 43.5 40 38 37 36 33 31 30 29 3600 38 43 45 42 39.5 37.5 36.5 34.5 31.5 30 29 28 3200 38 43 43 41 38.5 36.5 35.5 34 31.5 29 28 27 2800 38 43 41 39 37 35.5 34.5 33 29.5 27 25.5 24.5 2400 37 40 40 38.5 36 34.5 33.5 32 27 24.5 22.5 21 2200 37 40 40 38 35 33.5 32.5 30 25 22.5 20.5 19 2000 37 40 39.5 36.5 33.5 31 30 27.5 22.5 20 18.5 17 1800 36 39 38.5 35.5 32 28.5 27 24 20 17.5 15.5 14 1600 35 38 37 34 30 27 25 21 17 15 13.5 12 1400 33 35 34 31 27.5 24.5 23 19 14.5 12 11 10 1200 31 33 32.5 30 26 23.5 21 15.5 11 9 8 7 1000 29 30.5 30.5 28 25.5 22 19.5 13.5 7 5 4 3 800 26 29 30 26 22 21 19 13 6 4 2 0 600 22 25 26 24 21 17 15 9 2 -1 -2 -2 400 18 21 22 21 19 15 12 6 2 2 2 2
08-01-2006, 07:23 PM
#2
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Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: 5.7 TPI, LG4
Transmission: 700R4, 700R4
Axle/Gears: 3.27, 2.73
How in the world did you add the extra RPM capacity to the tables? Simply forcing them in there won't do it.
08-01-2006, 07:54 PM
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Car: 1992 Camaro RS - not real slow anymore...
Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram
Transmission: T5 untill it blows up from to much torque
Axle/Gears: Ford 9" /w auburn pro & 3.89's
Originally Posted by RednGold86Z
How in the world did you add the extra RPM capacity to the tables? Simply forcing them in there won't do it.
I was reading this thread:
https://www.thirdgen.org/forums/diy-...hlight=maf+327
Last edited by Dirtbik3r; 08-01-2006 at 08:09 PM.
08-01-2006, 09:00 PM
#4
You can't just change your definition and edit....
The SA table scale change would be similar to a VE table change listed here- https://www.thirdgen.org/forums/diy-...ed-200rpm.html
With 200psi, you don't necessarily need 36*. Unless you have old style open chamber heads. In which case you need a bigger cam to lower your cyl. press.
Now, your problem may be due to your CTS table.
Not all xdf's factor in the bias value.
Typically it's the table value - the bias= the SA add/sub to the total SA.
Look at the calculation used by the xdf. If it's real simple and doesn't have two variables listed, it isn't showing the bias'd value.
When the bias is factored into the table display, you will typically see
+SA at lower temps, zero SA at normal temps, and - SA at higher (>220f) temps. Values on the order of 3-5 degrees in the table.
The SA table scale change would be similar to a VE table change listed here- https://www.thirdgen.org/forums/diy-...ed-200rpm.html
With 200psi, you don't necessarily need 36*. Unless you have old style open chamber heads. In which case you need a bigger cam to lower your cyl. press.
Now, your problem may be due to your CTS table.
Not all xdf's factor in the bias value.
Typically it's the table value - the bias= the SA add/sub to the total SA.
Look at the calculation used by the xdf. If it's real simple and doesn't have two variables listed, it isn't showing the bias'd value.
When the bias is factored into the table display, you will typically see
+SA at lower temps, zero SA at normal temps, and - SA at higher (>220f) temps. Values on the order of 3-5 degrees in the table.
08-01-2006, 10:50 PM
#5
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Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: 5.7 TPI, LG4
Transmission: 700R4, 700R4
Axle/Gears: 3.27, 2.73
You would have to modify the actual code to make that work. As far as I know, no one has done that to $6E yet.
08-02-2006, 11:42 AM
#6
Originally Posted by RednGold86Z
You would have to modify the actual code to make that work. As far as I know, no one has done that to $6E yet.
08-02-2006, 08:25 PM
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Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: 5.7 TPI, LG4
Transmission: 700R4, 700R4
Axle/Gears: 3.27, 2.73
I wasn't referring to your comment. I had replied very slowly, and you replied while I was typing, and was referring to the ability to just add the timing table rows into the xdf wasn't going to work, you'd have to modify the code to make the spark advance stuff actually work.
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