I'm getting knock with meth...

[StealBlueSHO]

Tooks some screen caps of what I am talking about.. the first picture is a 3rd gear pull from mine... notice the blue line is pretty linear once its stabilizes? Thats my wide bands..

the other screen cap is yours.. your wideband is the gold line..

the delivery is not smooth... still don't see why you are pulling that much KR...

 

[StealBlueSHO]

I ordered some Boostane to add to my fuel to see if the 93 pump gas or meth is junk. Hopefully it'll come in today.

Interesting things to note.. after cutting the data before the high speed and after the high speed (attached to post) I can see up to +7kr .. BUT it only occurs after shifting. 

during the non-shift WoT your only hitting 18spark on average but it is stable.. it is low for meth in my humble opinion but it is behaving as it should.

what is your elevation ?

others will need to chime in but this looks like a tuning issue or a fuel quality / meth quality issue or issue with meth delivery issue with the nozzle..

I don't think octane is the issue, your fueling is out of whack.

The car cant pull enough fuel fast enough to hit your targets.

Lack of meth atomization could be an issue so I would check that nozzle flow.

The meth atomization is probably a good thought, which is why i am curious about bank 2... I wonder how its trims look compared to bank 1... if its not atomizing well enough, then one bank will be getting a piss pot full of meth while another is probably not...

Its typical on meth cars to run rich briefly while the ECU's catch up to the WB's information... keeping the throttle wide open alleviates this to some degree... Brad and I were working to get that resolved but messing with the speed density tables messes with a whole lot of junk on the 2010-2012 cars... It messes with the load calculations which I suspect a lot of other adjustments that the ECU makes are derived from.. shifting points was one of those...

 

[ddlopes]

I'm kinda hoping its bad gas and that the boostane wiill fix the issue. I'm running Mobil 93 octane and VP race fuel M1 at 100%. I don't know why the bank 1 is getting inconsistent meth. I'm wondering if I'm injecting to close to the intake and it's not atomizing enough yet.

 

[StealBlueSHO]

I'm kinda hoping its bad gas and that the boostane wiill fix the issue. I'm running Mobil 93 octane and VP race fuel M1 at 100%. I don't know why the bank 1 is getting inconsistent meth. I'm wondering if I'm injecting to close to the intake and it's not atomizing enough yet.

If you suspect its bad gas, I would just detune it until your next fill up... if you have E85 around, you could attempt to throw a couple gallons into it. I had to do that once when I got craptastic gas once. Just monitor your fuel pressure if you do... you don't want to knock with the low fuel pressure... actually... just detune it.. as much KR as your are getting ignore my comment about E85... lol

 

[glock-coma]

If I remember correctly bank 1 is the firewall side and bank 2 is the radiator side.
I know when I got my induction cleaning done on my intake manifold the #1 cylinder was completely spotless while the others still had some deposits left on them.
Which leaves me to believe a majority of the cleaning agent was sucked in here. Which might be the same case because of the throttle body adapter your using.

 

[ddlopes]

Where did you guys install your nozzles?

 

[ddlopes]

Here's the second meth tune... it looked much better I think.

 

[TopherSho]

Where did you guys install your nozzles?

*Typically* in the hot pipe about 4 or so inches from the thottle assembly..

show us a pic of your nozzle placement when you have time.  the Atomization idea has legs, or impacted diversion of the spray does as well. 

 

[ddlopes]

Here's a pic of my throttle plate setup.

 

[StealBlueSHO]

Wow... looks impressive... but you are literally spraying AFTER the throttle... not saying that's right or wrong... but there is no time for atomization to happen...

Now I am really curious about bank 2...


Sent from my iPhone using Tapatalk

 

[StealBlueSHO]

Here's the second meth tune... it looked much better I think.

Yes yes.. much better... I wouldn't be too concerned with those. I wonder what was changed...

 

[TopherSho]

Here's a pic of my throttle plate setup.

in the spacer .. that a neat idea actually.  what size nozzle @ what pump psi ?

 

[TopherSho]

the Spark is still on the low side in my amateur opinion.  Spark1  is 19 or so so avg and Spark2 is 21 or so on average.    The temp drop is not very rapid either.

The only thing I can see from my arm-chair is that the STFT peak reading is right in the middle of the knock +1 reading.  Now +1 is not actually knock .. so grain of salt that .. but the ECU is thinking it needs to pull based on other readings. 

 

[ddlopes]

Maybe that's the issue. Snow Performance offers the throttle plate for the F150. So I had one made. So what about the direct injection meth kits. They're injecting directly into the intake runners so they can't have much time to atomize. 

 

[ddlopes]

I did get gas after the 7th tune. But the 7th tune is when I started to get more knock. So not sure where the issue is

Here's the second meth tune... it looked much better I think.

Yes yes.. much better... I wouldn't be too concerned with those. I wonder what was changed...

 

[ddlopes]

I'm running (2) 175ml nozzles and not sure on what the psi is the Snow Performance pump. The primary nozzle starts to spray at 6psi and maxes out at 7psi. The power nozzle starts at 7psi and maxes out at 8psi.

Here's a pic of my throttle plate setup.

in the spacer .. that a neat idea actually.  what size nozzle @ what pump psi ?

 

[ddlopes]

Here's the 7th log where the knock started getting worse.

 

[lamrith]

Here's a pic of my throttle plate setup.

in the spacer .. that a neat idea actually.  what size nozzle @ what pump psi ?

It is def a cool idea for simpler install and one I am very curious about myself.  But I have a feeling it is leading to some of the problem as it likely does not atomize or mix the meth in the air as well.  It may require a slightly different tune to account for location/atomization.?

Back to basics though..
OP, Have you pulled the METH system or disabled it and run a non meth tune to verify if you have KR without the Meth being involved?  It would be a very good idea to verify your car's baseline situation to help narrow things down and get you rockin n rollin with Meth long term.

Maybe that's the issue. Snow Performance offers the throttle plate for the F150. So I had one made. So what about the direct injection meth kits. They're injecting directly into the intake runners so they can't have much time to atomize. 

True, but direct port injection you are getting equal meth to every cylinder regardless of atomization.  In a single nozzle, atomization has a larger effect on equal dispersion to all cylinders..

 

[TopherSho]

I'm running (2) 175ml nozzles and not sure on what the psi is the Snow Performance pump. The primary nozzle starts to spray at 6psi and maxes out at 7psi. The power nozzle starts at 7psi and maxes out at 8psi.

Here's a pic of my throttle plate setup.

in the spacer .. that a neat idea actually.  what size nozzle @ what pump psi ?

Default psi of the pump should be 270-285 with a max of 290-300.  your nozzle Combined output is 350ml which is LESS than mine (375ml) so you are at less volume combined.

so that leaves us ::
-gas issue
-sprays are not vaporizing enough
-spray jet-streams are interfering/colliding with each other and not vaporizing??  (pulling that one out of my a$$)

hmmm

how long have you ran the nozzles in the spacer for?  are their pauses or gaps in either spray if you run it for 30 seconds?

Conjecture :: I wonder if the power nozzle ramps up?  or is full on ?  .. maybe the spike and knock bump is from the second nozzle suddenly coming online ?

 

[ajpturbo]

I know you may hate to try this...But you are the only one I think that has the throttle plate adapter...Although it's very nice and clean looking it's making me wonder. ANd like SBS was saying maybe it's not allowing the meth to mix as well. I guess if you had the nozzles installed earlier in the intake tubing the meth and aircharge would mix more and be delivered more homogenously

Another thing I was thinking. I can change the knock sensor logic in the tune and you can add the DMR items in livelink for individual knock sensors 1 through 6 if they are available for your strategy and I think they should be...Then we can see if there is a certain cylinder or more that are recording the Knock retard.

If there is an odd cylinder do that then that may tell us that the meth is not mixed up well and it's a delivery issue possibly from using the throttle plate....So you could do that or relocate the nozzles to charge piping pre throttle body