EFIDynoTuning Forum

Thanks for adding the trans stuff. There appears to be an error with FN1355 on the latest XDF. I believe the correct address is A92E but is set at B5DA in the xdf. It wiped fn32s when I set FN1355 to zero so that's how I found it.

different SAD for different bins, but how do you know which is right for which

Let the user decide? Maybe a simple option to choose the disassembler version with some guidance.

Instead of a one size fits all approach, why not have separate code paths (v4) for the bins that mess up your rewrite? Would it be simple enough to determine what nuances to look for and decide which version to run?

Password is found here:

viewtopic.php?p=5523&hilit=DONOTEDIT#p5523

Ok cool I wasn't sure if cruising in od was helping mpg since I am pressing the pedal down further.

The issue is I tow 7k pounds up a 3 mile 15% grade regularly and second gear will not maintain speed. There is a 25 mph turn at the bottom. With the converter unlocked in 1st the heat generated is excessive and rpms are higher than needed as well. In first with tcc locked I would be able to maintain speed and accelerate easily. The fastest section on the grade is 45 mph which would rev at ~4500rpm.

Thank you for explaining all that. I'm honestly impressed with the idle quality and off idle torque considering it's a truck with 33-in tires. I can imagine the TFS1 in a car has plenty down low. The setup is quite nicely matched with the 3.55 gears and four speed. The only issue is manual first on the e4od will not lock the converter. First gear is definitely necessary pulling heavy trailers up steep grades. When I get some time I'm going to try to set up a tune that will lock the trans in first gear with the shift lever and drive. That should make it pretty much ideal in any situation.

On another note. With a bigger than stock cam where is peak fuel efficiency found?

In od I am running 1500rpm at 55mph. It actually cruises nicely as long as fuel delivery is happy. Is the tfs1 considered a big cam? I have 1.73 rockers as well

Cool I dropped 12 degrees and it made slightly more power but was rougher. I added a few back and it smoothed out. I am thinking one or more of the injectors are still gummed up and the extra timing is helping the inconsistent mixture light off better. I really don't want to pull the upper intake as I have to make a custom gasket each time. I am running Lucas injector cleaner. Do you have a better recommendation?

It just doesn't make any power otherwise. It looks terrible because load is 22+ at cruise under 2k. Even the slightest incline will push it to near 29 at less than half throttle.

Running injector cleaner for a few thousand miles cleared everything up. Anyone running AFR heads able/willing to share their spark table? My truck runs great with this table but was hoping to compare with other similar setups. It needs a lot of timing below 2k rpm as you can see.