Ford Powerpack 2 + Catback Exhaust =Fail

[TooSoonJunior]

I haven't been able to see an actual PP2 tune, but my PP3 tune has a different logic for controlling knock, it is per cylinder instead of all cylinders globally, and to log knock (and timing its adding) you would need to log knock by each cylinder. For me the regular knock sensor PID I used to log showed zero the entire time, then I switched to logging each of the 8 cylinders and saw it adding timing but also knocking a little. To me there is still a good chance you have knock, or false knock.

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[wildcatgoal]

Interesting... another PP2 dyno that isn't an evidently huge fib of 420 damn HP to the wheels like LMR posted! My PP2 dyno was 391 HP and I can't remember the torque.

 

[Chad11491]

[ame="[MEDIA=youtube]eEajLgFvfQw[/MEDIA]"]

this is how you can check for false knock caused by your exhaust. If you tap it with a bit of grunt from a rubber mallet and it reverberates, then you have false knock and your engine will pull timing causing what you're seeing. I'd check this first.

 

[TooSoonJunior]

this is how you can check for false knock caused by your exhaust. If you tap it with a bit of grunt from a rubber mallet and it reverberates, then you have false knock and your engine will pull timing causing what you're seeing. I'd check this first.

My exhaust makes all kinds of noise when tapped with a rubber mallet and I have no false knock. It is not a given.

 

[markmurfie]

27-28* below 3000rpm a dip to 20* 4500-5500 and 25* above 6000 is a conservative spark advance but its normal. If it had false knock or knock you would see the drop in spark even if the knock PID was not reading. The knock PID did have a small positive in his other log, just no negatives.

 

[jcart953]

That log is much better.

Cams are moving as they should
fuel is good until where it normally would go into cat over temp protection. Thats where it gets rich, but not as rich as it was in your other logs.

I say a different tune could get a bit more out of your car safely.

Probably normal discoloration but my stock pipes look super purple. When does it go into cat over temp protection? I was thinking about a new tune. Who tunes with SCTX4 ? Just Steeda? Unless someone tunes with Procal lol

What are you using to datalog

SCTX4 and live link. Live link is free but heres how it would go once you have the SCTX4:
[ame]

this is how you can check for false knock caused by your exhaust. If you tap it with a bit of grunt from a rubber mallet and it reverberates, then you have false knock and your engine will pull timing causing what you're seeing. I'd check this first.

I already spoke about that earlier the only place I'm seeing that is near the flex pipe. I got to stop being lazy and just upload the video

 

[jcart953]

I haven't been able to see an actual PP2 tune, but my PP3 tune has a different logic for controlling knock, it is per cylinder instead of all cylinders globally, and to log knock (and timing its adding) you would need to log knock by each cylinder. For me the regular knock sensor PID I used to log showed zero the entire time, then I switched to logging each of the 8 cylinders and saw it adding timing but also knocking a little. To me there is still a good chance you have knock, or false knock.

I'm not sure live link has that option. I'd have to double check as its good info for the future. Do you know the name of the PID you select?

Interesting... another PP2 dyno that isn't an evidently huge fib of 420 damn HP to the wheels like LMR posted! My PP2 dyno was 391 HP and I can't remember the torque.

Yeah i kept looking at there dyno for comparison myself and it seems they dynoed there PP2 with a Ford Perfomance GT350 Catback Exhaust. Would have been nice to see there dyno just stock with PP2 for better comparison:

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