Using the torque app with knock detector and it is telling me I have no detonation 3.4 pulley short ram intake zzp pcm straight pipe to stock mufflers, nothing else. Is this possible ?
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03-16-2015
Using the torque app with knock detector and it is telling me I have no detonation 3.4 pulley short ram intake zzp pcm straight pipe to stock mufflers, nothing else. Is this possible ?
03-16-2015
No Cat no ubend? Absolutely
03-16-2015
Yup
03-16-2015
Only 91 or 93 octane from time to time half tank of 102
03-16-2015
Seems hard to believe with nothing other than an intake and ubend delete.
They always seem to knock with stock manifolds in the higher rpm range.
03-16-2015
The first time I ram it, it said -.05. every time after it said no detonations found I ran it about 5 times
03-16-2015
Not saying it's wrong, but I could never trust a phone app to give me data like that.
The way you say it gives out it's readings just has me thinking it's not doing a real time log down to the tenth of a second.
03-16-2015
i got the t app and dhp, the t app is pretty dead on.
he could have one of them factory freaks. or the 102 is killing the kr off.
03-16-2015
Is it unleaded 102, if not your o2 sensors are dying
03-17-2015
It's probably the ZZP PCM dumping an F-ton of fuel to prevent knock, if I had to take a crack at it.Originally Posted by xxburkettxx07
03-17-2015
Now it's saying I do have detonation
03-17-2015
How much Detonation do you have now?
03-17-2015
the engine has to be up to 140 or 160 degrees for the knock sensors to work. so maybe the car was cold still.
03-17-2015
What Scotty said ^
Personally, I never "beat" on my car until its up to full operating temperature.
03-17-2015
That was my premise as well.
OP, what kind of timing do you have at WOT?
03-17-2015
probably about 6* in that zzp PCM
03-17-2015
The torque app is accurate, if you don't want a delay, don't load so many gauges in it, limit it to what you need to see. Is real time and I've checked it against other gauges and its dead on. Make sure you have the Knock PID loaded and as mentioned the PCM doesn't monitor knock until @ operating temps. The torque app is just displaying what the PCM sees...
But the bigger problem is dropping to a 3.4 on a ubend with a box tune (let some a ZZP). Just asking for trouble in my opinion. A wideband would give up the ghosts on the ZZP tune to see of its dumping fuel. But anyways, welding in an extra bung would seem too much work for some!
Worse that could happen is "BANG" "CLUNK" "CHINK"... Time for a new engine because you thought you had no knock on a ubend delete while dropping pulleys!
03-17-2015
if im right judging by your timing. you got like 9* of kr there easy.
get a better app, or a better screen that tells how much KR your getting.
i run timing and kr on a screen by themselves.
03-17-2015
Torque knock detector, it's never worked for me. You aren't using the right section. You need to add the additional PIDs for GM vehicles, then add a KR gauge on your dashboard.
GMPP, Votland, Addco
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