400hp 351w startup tune

[efloth]

Looks like too much AE fuel was causing it to overshoot. Transient fueling is definitely the most challenging thing to tune without a wideband.

[efloth]

Ordered a new kirban regulator. The popping came back after a couple days again driving me absolutely crazy. I can't think of anything else it could be. Filter and both pumps are new. Sometimes it clears up and runs great for a day or two.

Would you guys run 30psi base or up it to 60?

[efloth]

I went with 30psi. It is normal to need to multiply FN1321 - Equilibrium Intake Surface Fuel (TSEIF) many times with a ported intake?

[efloth]

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.

[decipha]

that looks horrible

41 degrees at wot between 1250 and 1750 rpm is significantly over advanced

the mbt guidance on the homepage would get you much more in the ballpark

[efloth]

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.

[decipha]

pull 15 degrees out right there and it should make significantly more power

[efloth]

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?

[red5.0fogger]

what rpm is in question? example; 1600 lugging in a high gear with tall tires is gonna be rough with a bigger cam. Stock cams are superior in this area.

[efloth]

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