416 F1X Power Loss After 6k RPM - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

HOU_TX_SS · 04-14-2016, 01:30 PM

So Im looking for any assistance or input with an issue we are seeing on the dyno. I am in the process of getting a speed density tune with Pat G in Victoria, Tx and we are seeing an issue. The power and torque pretty much go straight up with a very smooth line to about 6k RPM and you start to see power loss and jump in the data. You can also hear it from the car that its slightly cutting out and we let out of it. This happened a few pulls and it was just too hot so we shut it down. Pat says its not knocking and the VE tables are all perfect. Fuel is not an issue either (Fore Innovations double pump return style system). We think it may have to do with spark plug (BR7EF) gap or something of that nature. When its cutting out slightly around 6k you can also see light flames coming from the exhaust. Just looking at input to see if anyone has experienced this. Thanks.

Justin

trw427ss · 04-14-2016, 02:55 PM

What are the plugs gaped at?

HOU_TX_SS · 04-14-2016, 03:05 PM

Quote:

Originally Posted by trw427ss @ Futral

What are the plugs gaped at?

I need to double check them all but I want to say .026. What do you recommend?

trw427ss · 04-15-2016, 02:28 PM

Quote:

Originally Posted by HOU_TX_SS

I need to double check them all but I want to say .026. What do you recommend?

.026 should be fine. How much boost are you making?

Unreal · 04-15-2016, 02:34 PM

Valve train?

HOU_TX_SS · 04-19-2016, 10:39 AM

Pulled plugs and gapped to .026" and as a result, power pulls clean to 7000 with absolutely zero knock retard. Here is a video of a pull with the "Spark Blow Out."

https://youtu.be/svRpVDGzZUQ

DarrinSmartL99 · 04-19-2016, 11:24 AM

I saw you car there saturday, very nice. Kurt and Patrick are great guys. My dad has known Patrick since 1998.

Nitroman28 · 04-19-2016, 11:37 AM

What was the gap at before?

Sent from my iPhone using Tapatalk

HOU_TX_SS · 04-19-2016, 11:48 AM

Quote:

Originally Posted by DarrinSmartL99

I saw you car there saturday, very nice. Kurt and Patrick are great guys. My dad has known Patrick since 1998.

Thanks man I appreciate it. I've been through several local tuners and Pat and Kurt are in their own category. We you there for a tune?

HOU_TX_SS · 04-19-2016, 11:49 AM

Quote:

Originally Posted by Nitroman28

What was the gap at before?

Sent from my iPhone using Tapatalk

Im honestly not too sure. I thought they were .026", but I'm guessing not. When you start making big power your shit has to be spot on.

mrebusa · 04-19-2016, 12:45 PM

What'd the car end up making?

camarosspower · 04-19-2016, 01:06 PM

How come it just spit fire off from the passenger side and not both?

HOU_TX_SS · 04-19-2016, 03:14 PM

Quote:

Originally Posted by mrebusa

What'd the car end up making?

Made 912hp/721tq.

HOU_TX_SS · 04-19-2016, 03:15 PM

Quote:

Originally Posted by camarosspower

How come it just spit fire off from the passenger side and not both?

Thats a good question. I have a full Kooks exhaust which has a x style pipe in the exhaust. Im not sure why it did that

Maybe something to do with the issue of spark blow out.

04-14-2016, 01:30 PM	#1
HOU_TX_SS Drives: Camaro SS Join Date: Jan 2013 Location: Katy, Texas Posts: 156	416 F1X Power Loss After 6k RPM So Im looking for any assistance or input with an issue we are seeing on the dyno. I am in the process of getting a speed density tune with Pat G in Victoria, Tx and we are seeing an issue. The power and torque pretty much go straight up with a very smooth line to about 6k RPM and you start to see power loss and jump in the data. You can also hear it from the car that its slightly cutting out and we let out of it. This happened a few pulls and it was just too hot so we shut it down. Pat says its not knocking and the VE tables are all perfect. Fuel is not an issue either (Fore Innovations double pump return style system). We think it may have to do with spark plug (BR7EF) gap or something of that nature. When its cutting out slightly around 6k you can also see light flames coming from the exhaust. Just looking at input to see if anyone has experienced this. Thanks. Justin __________________ Fully Built 416ci / Procharger F1X / Century Built 4L80 / ZL1 Differential / Alky Control Meth /Circle D Triple Disk / ID1300s / Fore Innovations Return / Kooks Full Exhaust / Holley HiRam / e85 / 15in Conversion on Forgestar Beadlocks / Tuner: Pat G

04-14-2016, 02:55 PM	#2
trw427ss Drives: 2013 2SS/RS L99 Join Date: Oct 2012 Location: Denham Springs La. Posts: 811	What are the plugs gaped at? __________________ 2013 2SS/RS L99/A6 Crystal Red Metallic Tincoat 12.76@108.98mph Bone Stock 12.46@111.19mph with New Era CAI & U/D Pulley 12.12 @ 114.16 after Stainless Power headers and no tune yet on stock P-Zero's! 12.007@ 115.20 With 18" Drag Radials - 11.93 @115.19 Added a PTB 11.76 @116.59 With Yank SS3200 Converter - 11.63 @116.52 After PI and Tuning 11.44 @118.75 New Best 10.72 @127.93 after heads and Cam and Yank SS3600

04-15-2016, 02:34 PM	#5
Unreal Drives: 2006 Z06 Join Date: Oct 2010 Location: Gilbert, AZ Posts: 5,712	Valve train? __________________ Nick Corvette Z06 -1200ish rwhp

04-19-2016, 10:39 AM	#6
HOU_TX_SS Drives: Camaro SS Join Date: Jan 2013 Location: Katy, Texas Posts: 156	UPDATE Pulled plugs and gapped to .026" and as a result, power pulls clean to 7000 with absolutely zero knock retard. Here is a video of a pull with the "Spark Blow Out." https://youtu.be/svRpVDGzZUQ __________________ Fully Built 416ci / Procharger F1X / Century Built 4L80 / ZL1 Differential / Alky Control Meth /Circle D Triple Disk / ID1300s / Fore Innovations Return / Kooks Full Exhaust / Holley HiRam / e85 / 15in Conversion on Forgestar Beadlocks / Tuner: Pat G

04-19-2016, 11:37 AM	#8
Nitroman28 Drives: 2010 Camaro SS 416/4L80 Join Date: Oct 2010 Location: Arkansas Posts: 1,835 View My Garage	416 F1X Power Loss After 6k RPM What was the gap at before? Sent from my iPhone using Tapatalk

04-19-2016, 11:24 AM	#7
DarrinSmartL99 Drives: 2010 Camaro SS/2SS Join Date: Mar 2015 Location: Cypress Texas Posts: 61 View My Garage	I saw you car there saturday, very nice. Kurt and Patrick are great guys. My dad has known Patrick since 1998.

04-19-2016, 12:45 PM	#11
mrebusa Drives: 14' 2SS 1LE Join Date: Jun 2015 Location: Ohio Posts: 157	What'd the car end up making? __________________ 14' 2SS/RS/1LE - NPP - K&N - TSP 1 7/8 Soon:

04-19-2016, 01:06 PM	#12
camarosspower Drives: 2010 camaro ss Join Date: Jun 2010 Location: Port Arthur, Tx Posts: 2,383	How come it just spit fire off from the passenger side and not both?