Ok, anyone who wants to chime in please do so for I would like to modify my previously proffessionally tuned map so that the timing pull and always apparent knock is not there anymore.

Points to be made:
1. Timing is pulled at the rate of 3.16 at over 4800rpms and at 1.4 over 6400rpms.
2. Can I just modify the ignition table in that I deduct (within those 2 rpm points) the amount of pulled timing from the actual table values so that I do not constantly pull timing?
3. If I bring down the ignition table values to minus the retard values will that not be the exact same result powerwise just without the knock?

Point here is that I dont want to think my motor is saved by knock control but knocks all the time anyway.

The log is in form of a .zip...

 

Your log looks pretty damn clean to me. ur around 16-18psi which you can actually turn up a bit. Seems like your AFR is a bit high (could take it down to about 11.4-5). You have not logged ign timing - so I really cant see how high/low your ign timing is. But to me as far as I can see...it looks very clean. anything under 2.0 volts usualy doesnt mean knock.

If you can...change your internal logging parameters so that it logs everything above 5psi and also includes O2#1, Knock Volts, Ign Timing, Engine Load, Engine Speed, and Injector Duty. Do a couple 4th gear pull to whatever your rev limit is, and a couple 3rd gear pulls. Then post the logs - gives us a better idea at what we're looking for. Thanks!

 

platinum, gotcha dude and tnx but i did log the knock retard, rpm and knock volts in that log, looking straight at it actually.

The point is at rpm point 6500 you can see that knock volts are at 0.71 but timing retard is 3.16deg making the actual knock volt alot higher since the knock control Ign Control is set to pull 3.16 at 2.73 volts.

does that make sense?

 

14psi at redline? Dude you need to fix that

 

platinum, please believe me I have not tuned this but a known central florida tuner shop that is very cool and all but this has to go, as you said.

 

platinum, also from where do you gather 14psi? just curious,...like I said, this is heavy ;-)

 

well im looking at your log.. your Engine Load = boost. It's kinda low. Do u control boost with AEM or boost controller? Also who tuned this map?

 

cft, ...ebc and yes boost is low otherwise I'd be knocking even more I am sure. ;-)

 

Well like i said... anything below 2.0 volts is usually nothing - just engine noise. Now if you're in the 3-4 volt range....that is KNOCK. so turn the boost up and lets do a couple pulls and show us the log.


Edit: im not tryin to say you have a bad tune because it seems like its very clean. But i am going to say this - Sean Ivey will be coming to Fl soon and if you want a reallly good tuner to tune ur car - he is the man. So let me know if ur interetsed

 

hehehe, I hear ya, well doesnt it depend on the car itself to say what is noise and what is knock? In the log you see that the Knock Volts are 0.7 at 6700 but that is after retard of timing at 2.73deg/Volt (3.16DEG max) meaning there was knock, PLENTY...

 

i gotcha platinum, is all cool...but ok now could it be that it is a bad tune and it pulls timing even before the knock gets bad? ...is that possible?

 

that is why i said... log Ign Timing... lets see if its really knocking.

 

Have you calibrated your knock sensor yet? What the EMS is telling you is Knock Volts may not really be knock but rather you've got a poorly calibrated knock sensor.

I've posted this in another thread but here is the knock sensor signature for my motor running 19 psi of boost on 117 octane low lead fuel.

EDIT: I should mention that this motor is stroked, has forged pistons and has had the balance shafts removed.

 

Here's an XY plot and internal log from a stock turbo, stock bottom-end car I tuned on the dyno for reference. No knock. Car went 12.1 with this tune, and autocrosses as well.

 

thnx guys, well after logging Knock Raw which is the real, retard unchanged value, it became clear that the only reason the thing is pulling timing is because the threshold is soooo bad and there is really NO knock but false noise readings...I will post later with log...