Datalog Knock Timing Retard Fuel Issue?

I recently bought a new laptop so I could actually data log my 11 GT again. MY old one was still running XP and was giving me a hard time. This is the first time I data logged the car. Any way, basic bolt ons no power adders. I noticed that a positive knock starts to happen as the RPMS increase I was wondering if this could be caused by a fuel issue.

I was looking at the data log in Excel.

Is this a base tune or what? you have a serious amount of knock through the whole pull, any chance the exhaust is hitting anything?

-Base Tune -no revisions- I sent the Data logs over to Bama.

-91 octane race Bama tune.

- Ill jack the car up and see what I can do.

-Also the thermostat is opening up at around 183 degrees not 170 like its suppose to.

It only knocks on the full throttle pull. During the 1500,2000,2500,3000,3500,4000 RPM part throttle step test I had 0 knock. To me it looks like the fuel leans out if I'm reading it right.

-J&M caster camber plates have popping noise
-Spherical bearings in suspension parts pop
-Raspy exhaust

The car is loud.

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Reische Performance Thermostat - 170
Cobra Jet Twin 65mm Throttle Body
NGK Heat Range 7 plugs
Accel Super Coil Packs
Pypes Stainless Steel long Tube Headers
Pypes off Road X-Pipe
Corsa Axle back exhaust
Ford Racing Cobra Jet Intake Manifold
Ford Racing Cobra Jet Cold Air Intake
3:73 gears
Lethal Performance Over Axle Pipes Resonator Delete
Bama Tuned
MGW X-spec low profile Shifter
J&M ADJUSTABLE PANHARD BAR
Ford Racing lowering springs
KONI SHOCKS AND STRUTS KIT – ORANGE
BMR Lower Control Arm Relocation Bracket
BMR Tubular Lower Control Arms
Steeda Upper adjustable rod End control arm
Steeda Sperical bearing Differential bushing
BMR K-Member
BMR K-member Brace
BMR 1" lowered motor mounts
Gt500 finned differential cover
McCleod stainless steel clutch fluid line
DSS 1 piece aluminum drive shaft
BMR Radiator Support
BMR radiator support Brace
Boss 302 install Kit
Boss 302 fuel injector covers
Steeda Clutch Pedal Helper Spring assisst 95lb
J&M Adjustable Caster Camber Plates
BMR Front Control Arms w/Extended Ball Joints
Energy Suspension Transmission mount insert
Steeda Bump steer kit -removed do to Toe Out issue. "need to shave down inner rods"
LMR SVE Graphite GT7 20x11, 20x10 Rims
315/35/R20 Rear Tires
275/35ZR20 Front Tires
Ford Performance BOSS 302 Engine Oil Cooler
JLT V3.0 Black Oil Separator Passenger Side
Exedy Mach 600 Stage 4 Clutch
Exedy Chromoley Steel Lightweight Racing Flywheel - 8 Bolt
GT500 Rear Splash Guards
Boss 302 Front Strut Tower Brace
Blow Fish Racing GT500 Rear Brake Axle Brackets 14" Rotor kit
Stop Tech 2014 GT500 Drilled and slotted 14" Rear Rotors
Stop Tech Centric 2014 GT500 Drilled and slotted 15" Front Rotors
2015 Mustang GT 6 Piston Brembo left and right Front brake Calipers
Stop Tech Front Brake Lines
Whiteline Front and Rear Sway Bars

I'm currently troubleshooting a similar issue with Lund Racing.

First thing my tuner had me do was go out and buy a can of VP Octanium octane booster. Helps rule out bad gas. If the car still has a lot of knock, then you can start looking elsewhere.

Wow your even running colder plugs and still getting all that knock, I mean not for nothing but the first thing I would change on your setup is that garbage tune before you blow up cylinder 8, and your definitely leaving power on the table with a Bama tune on your pretty max effort NA setup. Also why are you only revving to 7K on a CJ setup, should be going to at least 7800 (once you fix your knock issue)

Stock oil pump drive gears still. The timing retard. You can feel it. Does not feel like its making additional power as the RPMS rise at this time.

I was planning on L&M intake cams and putting some MMR parts in. Although, I want the car to run the way it is at the moment.

-Shawn Fisher has been pretty helpful and patient with me in the past do to other issues. So far I have not had any complaints with the Bama tune. Ill see what they say and go from there.

-Im gonna go jack the car up and check exhaust bolts. Throw some octane booster in it and give it another go.

I have a 13 stock OPG and CS as well, Ported CJ setup and rev to 8100 (8250 Limiter) without any issues, but again I doubt Bama has figured out how to you let you rev that high without cams reverting back to zero. But yeah try the octane booster for the heck of it and definitely check the exhaust for rubbing especially with headers.

okay I checked the exhaust. Off course it was a little loose like always. Cranked it down. No rubbing. Sounds better now.

Okay, So I filled the tank up with 93 octane at BP like I always do a and got a can of that VP Octane Booster and put in it. All I can say is WOW. Amazing what some octane booster can do. Exhaust sounds cleaner, runs smoother.

I data logged it again in a different location. Lost some traction for a less then half second in third gear when the road dipped slightly. This was a uphill pull. Not many good locations around here.

I have not reviewed the data log yet. SO that is what I'm going to do now.

I'm very pleased with the results now. Amazing what some octane booster can do.

Sent the 2nd data log over to BAMA That way they can do their thing.

Log looks much better, either the exhaust being loose was messing with it or it was the fuel. You even gained about 15HP according to your maf/lbs

Toplait said:

I'm very pleased with the results now. Amazing what some octane booster can do.

Sent the 2nd data log over to BAMA That way they can do their thing.

Click to expand...

My local Shell station was having bad fuel. I thought it was good until my logs got reviewed and a friend has having issues too. We swapped to a new station and now all is good!

Glad you got the issue figured out.

data logged the car again just with 93 octane no additives. I think the fuel trims need work. Still waiting on Bama to reply to my datalogs I sent them. I start getting knock when the fuel trims start dropping by what it looks.

Toplait said:

data logged the car again just with 93 octane no additives. I think the fuel trims need work. Still waiting on Bama to reply to my datalogs I sent them. I start getting knock when the fuel trims start dropping by what it looks.

Click to expand...

I looked at a few things. Doesn't look all that bad. +1 on your knock sensor near 6500. When the knock sensor goes +1, your air to fuel ratios are only .1 off between banks and fuel trim only has a .03 difference.

Wish my datalogs looked at clean as that.