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ECMlink help with HP dropping from 508 to 400

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95tsiawd0330

10+ Year Contributor
124
0
Feb 9, 2012
woodlyn, Pennsylvania
Can someone give me a idea what I should do with my HP

In my log I go from 508hp to 400hp in less then a sec what will cause this?
Plus my airflow ib/min is real choppy.

Also I did 5 pulls before this pull and I had my WB and AFRest over top of each other now this pull they go away from each other by the end over the pull
also so you know my Maf is NOT hacked
so my questions are
why is HP dropping ???
why is airflow choppy???
and with me lowering maf comp sliders that takes fuel away correct ?????

EDIT :
Verify mechanical timing
Verify base timing (@5 Degs)
Ignition system: (Good)
Motor health (@ 900 miles)
Basic throttle body adjustments: (good)
Base fuel pressure and injector values: (psi@43 injector values bench tested from tom)
Compression ratio: (9:1)
Wiring and sensors: (all wires soldered)
Properly calibrated and configured wideband sensor: (yes with LC1)
Type of fuel: 93 Oct
No DTC/CEL codes: No codes
ECMlink how-to videos: Been reading and watching for a year now
 

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Did ya check for boost leaks..? does your wideband read the same?
yes checked that and WB is good Im thinking it a sensor glitch for HP reading and I think its something to do with my airflow being choppy and need to adjust airflow smoothing now just need to find how to adjust it in link what you guys think
 
You could have been going up a small hill/bump in the road too. Also, your airflow and speed sensor signals are pretty choppy. Not sure what it uses to calculate it, but I wouldn't worry much. Your 60-100 time seems pretty good. Just go by that if you are tuning to see improvements. The "HP" estimator (even though it's pretty accurate when on perfect flat road and perfect conditions) will drive you nuts.
 
Well, with that turbo and mani youre running you probably are around 500. Or in the ballpark. Cams would need to be aggressive to make the most on a 6162. Is that an older pte? How many miles? JB or BB? Sorry, im curious about ptes, ### i have one with about 4500 miles on it now. Holding up great but they have such a bad name.

Back on topic. Dont ever worry about the hp estimate. Ive seen over 2000hp for a blip!
If your mafcomps are low then your lb/min will be lower than it really is(if your maf is reading correctly of course). I would change fuel global to get the maf closer to zero in the high hz then your est boost and est hp will be more accurate
 
Like said above. It's not terribly accurate. However you can make some adjustments to make it more realistic.

Right click on "Horsepower" and go to "Horsepower Preferences" Under "Input Smoothing" set it to 6, and for "Output smoothing" set it to .9. You should have a nicer looking curve that should eliminates some of the spikes.

Your horsepower is reading high based on your airflow numbers. Also, your boostest is real jumpy, I'm not sure what's up with that? Same thing with you'r Airflow, I don't believe that Airflow is calculating correctly. That 50lb/min is very suspicious among other some of those other spikes.
 
Well, with that turbo and mani youre running you probably are around 500. Or in the ballpark. Cams would need to be aggressive to make the most on a 6162. Is that an older pte? How many miles? JB or BB? Sorry, im curious about ptes, ### i have one with about 4500 miles on it now. Holding up great but they have such a bad name.

Back on topic. Dont ever worry about the hp estimate. Ive seen over 2000hp for a blip!
If your mafcomps are low then your lb/min will be lower than it really is(if your maf is reading correctly of course). I would change fuel global to get the maf closer to zero in the high hz then your est boost and est hp will be more accurate
AM not sure if is the older pte if am not mistaking pte only made one style 6162 turbo and discontinued if I'm right. and it is a JB turbo with about 3500 miles on turbo and I think they have a bad name because of there customer service but yes back on topic LOL. I was thinking i was losing power when I was viewing the log but now that I think about it if I was dropping 100 HP like that I would feel it in the pull and I don't it feels like it just wants to keep building power its scarey I'm afraid of breaking something LOL

but know that I look at the log more i see my airflow,inj duty really choppy so I think it has something to do with my airflow smoothing in the DA because I still have the stock values in there still and am running a gm maf and they need less smooth in low airfow and more smoothing in high airflow so I adjusted them what do you guys think
 
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