Ok... I've searched here... you tube, Tuner Pro and not much luck...

I know you're supposed to advance the timing 2 degrees and check the knock count, then back it off once it starts...

I have a 91 305 TPI 5 speed with ported plenum, coolant bypass, air foil, jet hot 2055 headers ad y pipe, 3" high flow cat and exhaust, msd ignition box and coil, etc...

I do have a 170 Thermostat... I know that your gas octane can make a difference, I want to do a basic tune (to learn) then I can play with higher octane after I know what I'm doing...

So what should be done in Tuner Pro?
Again, I do have an EBL P4 Flash that I can do VE leanrs afterwards...

Thanks

Rafael

 

remap your sa

 

I appreciate your help, but unless TunerPro has a button that says "rempa SA", I'm kinda lost... I'm good with a computer... I know SA is Spark Advance, but that's all I got...

I need more basic, step by step directions... Or a place to find them...

Rafael

 

You will need to load your definition into tuner pro and load you .bin as well make the changes to your main spark table.

 

What heads are on a 1991 305 TPI ? Not the part # but a description....

 

I think what he wants is a step by step of how to advance spark via the SA table in tuner pro...

To do this, open up tuner pro (assuming you are emulating so you can feel the changes in real time which helps to save time and prevent burning chips every time.. and also assuming you have your "bin" and "ADF" files loaded into tunerpro)

1) open up the Spark Advance Table (under the Tables/Functions list, it's the first item)

2) You will see the pink table open up with all the spark numbers in the cells (RPM vs. Load)

**NOTE: BE CAREFUL. IF YOU ARE EMULATING DO NOT JUST CHANGE THE NUMBERS WITHOUT KNOWING WHAT YOU ARE DOING, SO PRACTICE BEFORE YOU DO THIS IF YOU ARE EMULATING IN CASE YOU MULTIPLY BY 2 INSTEAD OF ADD BY 2**

3) In this table select every cell (highlight all the cells with the mouse or press CONTROL-A)

4) Once selected, click on the "toolbox" button and you will see a small window pop-up called "Table editor"

5) In this window, you will choose "Offset (+/-)" from the drop down menu for "function type", and set the Value to "2" (without the quotations)

6) Click the button "Execute" and if you did it properly it should add 2 degrees to every number on that table.

Side note, my base timing is set at 10 degrees and also is set as such in the bin (in constants/scalers list, where it says "Spark reference angle - Base timing").. Make sure you base timing matches what the bin sees as the base timing before you start messing with the SA table, and then work from there.

Hope that helps!

 

On a side note that "toolbox" also offers a smooth function. If you set to .9 the smoothing is minimal. a .5 factor is a greater change. I smooth my SA tables and VE tables after making a change. I you look at "graph" before and after a smooth you will reccognize the effect of a smooth. You can smooth the entire table or do a partial if you like as in over a certain RPM or MAP

I made major changes adding SA to my stock L03 tables this summer and it seems to work well. For me anyway. I moved to iron LT1 SA and then looked at LT4 as a comparison and ended up half way between them.SA table with no modifiers show max SA at 42 deg and WOT at 32 plus 4 more for PE

 

If all I want to tune is WOT then I just change PE values instead of messing with the SA table.

 

Thanks hellz_wings, that is what I needed!

I got the right files in Tuner Pro, they are modified, cuz they are for the ELB P4 Flash.
I also can create 8 different files and store them in bank, with on the fly switching.

I'll check base timing... on stock TPI's, from reading here, it's supposed to be 6 and the top end is supposed to be 26...
What is the general area to work to, 34? Again, I know to do 2 and check...

Previous question, stock 91 305 TPI iron heads, I don't know the specs... but the cam is the same cam the 350 had those later years.

So the the power enrichment, is that fuel based and or spark advanced based when WOT?

Thanks again!

Rafael

 

PE is for fuel and spark. Note PE is referenced to gear in PE fuel.

I believed I zeroed out PE SA adder. Not sure why PE adder for SA needs to exist.
Same maybe could be said for PE adder(A/F) for fuel. I suspect it could as well be in VE table at 100 MAP or OL vs VAC A/F table 100 MAP-0 VAC. I am uncertain if PE looks at VE table cell or OL A/F cell entering PE. I know it looks at most recent BLM for that cell as adjusts PE.