Boost enrichment PE enabling very late

[phuz]

Did a highway pull yesterday and was shocked to see that my commanded AFR was still stoich upon full throttle and passing through 100kPa. It remained 13.77 (1.07) until 5200rpm and 8psi of boost. I have no idea how I didn't knock. With my minimum MAP for boost enrichment at 90kPa, why was it still referencing the RPM table?

(4:21 in the log)

[blindsquirrel]

There is a whole lot of weird going on in that tune file, I wouldn't know how to begin figuring out why it does what it does without reverting to something a bit closer to reality. MAF fail at 2KHz and the table zeroed above 2K? And that VE table sure is pretty but doesn't look like anything that would result from actual data collection and then tuning. Wowzers. Was this done by the kingtal0n method or something?

[edcmat-l1]

There is a whole lot of weird going on in that tune file, I wouldn't know how to begin figuring out why it does what it does without reverting to something a bit closer to reality. MAF fail at 2KHz and the table zeroed above 2K? And that VE table sure is pretty but doesn't look like anything that would result from actual data collection and then tuning. Wowzers. Was this done by the kingtal0n method or something?

LOL

PSA There's always been a delay switching to the boost PE in the GEN3s. That's why I set the RPM table up to command the proper EQ so I don't have to depend on the boost PE.

Not switching tables until 5200 rpm is pretty late though.

[edcmat-l1]

Your "NA" PE table isn't even set up correctly for an NA application. You're commanding stoich until 3200 RPM. Yeah that guy really knows his stuff.

[edcmat-l1]

You're not commanding any amount of fuel until about 125 Kpa. It's a combination of problems but basically neither is setup correctly.

[edcmat-l1]

This is how I would recommend setting them up.

Luckily you aren't making much boost and the timing is on the conservative side for the boost level.

[phuz]

I had lowered the RPM table but I see that was a bad move and luckily I didn't cause any damage.
The timing was kept very conservative to try to keep the power close to 600whp since it's a stock block.

For anyone else stumbling on this, I found this post from Chris which explains it well.
https://forum.hptuners.com/showthrea...l=1#post246728

[phuz]

This is how I would recommend setting them up.

Luckily you aren't making much boost and the timing is on the conservative side for the boost level.

Did you mean to post something else? Because that picture shows exactly what I had.

This is what I changed them to:

[edcmat-l1]

Did you mean to post something else? Because that picture shows exactly what I had.

This is what I changed them to:

Yeah that was the wrong screen shot. Should have been this one.

[phuz]

Yeah that was the wrong screen shot. Should have been this one.

Gotcha, thanks.