Does this look like spark blowout? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

RealQuick · 06-10-2017, 12:51 PM

LS3
16psi
15 degrees timing
11.0A/F based on my wideband on the DP
BRE7F @ 0.028"
93 + 100 meth #10 and #5 nozzles

Clucth was slipping some on the dyno (thats why torque was low), but boost was very lazy and it was breaking up near peak power (up top).

The smooth curves were 16psi @ .032 with less airflow (more restriction). I havev added about 20% more airflow with some tweaks to the turbo setup.

**********Edit: Logs of run 68 attached************

ttshovel · 06-10-2017, 12:54 PM

that plug is too hot, throw some 8s in there and regap at .018...

RealQuick · 06-10-2017, 12:57 PM

Quote:

Originally Posted by ttshovel

that plug is too hot, throw some 8s in there and regap at .018...

BRE8F's or something else?

Also, thoughts on the dyno graph up top 5k+?

ttshovel · 06-10-2017, 02:41 PM

Quote:

Originally Posted by RealQuick

BRE8F's or something else?

Also, thoughts on the dyno graph up top 5k+?

yes those plugs! you can see the heat mark it too far down on the strap.

that does look like spark blowout or knock

AGP Turbo · 06-10-2017, 02:45 PM

Did you pull all 8 plugs? Do they all look the same?

Redlineviper · 06-10-2017, 02:50 PM

Just turn the boost down some and see if it cleans up and pulls to redline. If it doesn't then it's likely not plug blowout per say, could still be a bad plug, or a fuel issue or.......or......

RealQuick · 06-10-2017, 03:03 PM

I only got pass side out. Need to drop the downpipe and pull the driver's manifold to get to them.

Unfortunately I wasnt able to run less than 13psi on the dyno, even the 13psi pulls looked like this.

camarosspower · 06-10-2017, 04:08 PM

That's how all of mine looked. Br7ef gapped at .032
I'm on 15psi with timing at 15 I believe. 100%meth. Not saying that this is normal but I'm also looking for a answer. I put new ones in at .028 to see what it does

UNRIVALED SS · 06-12-2017, 09:30 PM

Few ways to work through this probably.

I would consider turning down the timing. Turning down the meth and see what it will take. Then add one and then the other and see what it will take.

Just a thought.

ZX1truth · 06-12-2017, 09:35 PM

Quote:

Originally Posted by RealQuick

I only got pass side out. Need to drop the downpipe and pull the driver's manifold to get to them.

Unfortunately I wasnt able to run less than 13psi on the dyno, even the 13psi pulls looked like this.

What turbo kit you do have?

hammdo · 06-12-2017, 10:41 PM

Just for an FYI to use as a guide:

http://www.wallaceracing.com/plug-reading-lm.html

-Don

RealQuick · 06-13-2017, 11:16 AM

Quote:

Originally Posted by ZX1truth

What turbo kit you do have?

Huron Speed Single kit with Precision 7675.

camarosspower · 06-13-2017, 09:46 PM

This is mine.

RealQuick · 06-14-2017, 08:09 AM

Datalogs attached to post #1 of the run on the dyno. You can see the MAF is getting wacky in the spot where it goes wired on the dyno (5000+rpm).

06-10-2017, 12:54 PM	#2
ttshovel Drives: 12 camaro ss, 72 chevelle, 91camaro Join Date: Dec 2013 Location: findlay,oh Posts: 2,069	that plug is too hot, throw some 8s in there and regap at .018... __________________ 12 camaro ss 427lsx, th400, f310 heads, crower shaft mounts, gpi specd solid roller, shearerfab 2k hp a/w, twin bullseye 88mm turbos, hughes pro ssx bolt together converter, holley dominator, 8.50 cert, backhalf, Ford 9", 33x17x16 tires, c16 fuel

06-10-2017, 02:50 PM	#6
Redlineviper Drives: 2013 ZL1 Join Date: Jan 2015 Location: Orlando Posts: 936	Just turn the boost down some and see if it cleans up and pulls to redline. If it doesn't then it's likely not plug blowout per say, could still be a bad plug, or a fuel issue or.......or...... __________________ 2013 A6 ZL1

06-12-2017, 09:30 PM	#9
UNRIVALED SS Drives: 2010 Camaro SS Join Date: Aug 2010 Location: El Paso Posts: 704 View My Garage	Hmmmm Few ways to work through this probably. I would consider turning down the timing. Turning down the meth and see what it will take. Then add one and then the other and see what it will take. Just a thought.

06-12-2017, 10:41 PM	#11
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	Just for an FYI to use as a guide: http://www.wallaceracing.com/plug-reading-lm.html -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

06-13-2017, 09:46 PM	#13
camarosspower Drives: 2010 camaro ss Join Date: Jun 2010 Location: Port Arthur, Tx Posts: 2,383	This is mine. Attached Images

06-10-2017, 12:51 PM	#1
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	Does this look like spark blowout? LS3 16psi 15 degrees timing 11.0A/F based on my wideband on the DP BRE7F @ 0.028" 93 + 100 meth #10 and #5 nozzles Clucth was slipping some on the dyno (thats why torque was low), but boost was very lazy and it was breaking up near peak power (up top). The smooth curves were 16psi @ .032 with less airflow (more restriction). I havev added about 20% more airflow with some tweaks to the turbo setup. ********Edit: Logs of run 68 attached********** Attached Images Last edited by RealQuick; 06-14-2017 at 08:08 AM.

06-10-2017, 02:45 PM	#5
AGP Turbo Drives: All things Turbocharged Join Date: Dec 2010 Location: AZ Posts: 1,199	Did you pull all 8 plugs? Do they all look the same?

06-10-2017, 03:03 PM	#7
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	I only got pass side out. Need to drop the downpipe and pull the driver's manifold to get to them. Unfortunately I wasnt able to run less than 13psi on the dyno, even the 13psi pulls looked like this.

06-10-2017, 04:08 PM	#8
camarosspower Drives: 2010 camaro ss Join Date: Jun 2010 Location: Port Arthur, Tx Posts: 2,383	That's how all of mine looked. Br7ef gapped at .032 I'm on 15psi with timing at 15 I believe. 100%meth. Not saying that this is normal but I'm also looking for a answer. I put new ones in at .028 to see what it does

06-14-2017, 08:09 AM	#14
RealQuick Drives: 2010 Camaro 2SS M6 - Intake/Exhaust Join Date: Sep 2014 Location: Bridgewater Posts: 693	Datalogs attached to post #1 of the run on the dyno. You can see the MAF is getting wacky in the spot where it goes wired on the dyno (5000+rpm).