Spark Plug Life For Supercharged Cars - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2013ZL1FUN · 12-22-2022, 03:01 PM

How often should plugs be changed on ZL1 engines? 16k on mine, 2013, so 10 years old.

Triple5even813 · 12-22-2022, 04:02 PM

Plugs are cheaper than an engine, so I change mine probably more frequently than needed. Before every track day or any tuning, or once a year. Whichever comes first. I got really good longevity and great performance out of the TR6 plugs, but I upgraded to BR7EF on the last mod cycle.

Robmnrd · 12-22-2022, 04:10 PM

Now that we are a decade along, what is the "best" plug to get for stock or only mildly modded examples of our cars?

VChula · 12-22-2022, 05:25 PM

I replaced the ones on my 2014 ZL1 at 100,000 miles (never raced the car).
2 or 3 of the plugs were missing the center electrode tip.

To my great surprise, the owner's manual specifies every 60,000 miles (for severe driving conditions) plug change intervals for the ZL1 instead of at 75,000 miles for all the other engine options

Triple5even813 · 12-23-2022, 12:15 PM

Quote:

Originally Posted by Robmnrd

Now that we are a decade along, what is the "best" plug to get for stock or only mildly modded examples of our cars?

Like I said, I had great luck running the TR6 on mine up to about 700whp. I didn't have any of the starting issues associated with excessively cold plugs and E85, and I feel the solid copper core gives you a hotter spark and better idle quality. I don't have any evidence that it's better than this or that plug, so all I have to offer is my own anecdotal experience. So take it with a grain of salt.

2013ZL1FUN · 12-29-2022, 08:16 AM

Well, I was just looking for what people have been doing in their actual practice, not what the book says. Maybe people had experiences where earlier or later changes were best for them in their situation.

Shodown · 12-31-2022, 11:19 AM

Ask your tuner.

I have been running NGK TR7iX plugs for the past 4 years with no issues.

yellow69z28rs · 01-01-2023, 10:13 PM

I know a guy with a ZL1, who had a electrode on one of his plugs come off, it punched two holes the shape of the electrode through the valve, ruined the valve seat and imbedded itself into the top of the piston,
I change mine often now.

Little Walter · 01-02-2023, 03:05 AM

Quote:

Originally Posted by yellow69z28rs

I know a guy with a ZL1, who had a electrode on one of his plugs come off, it punched two holes the shape of the electrode through the valve, ruined the valve seat and imbedded itself into the top of the piston,
I change mine often now.

This makes one suspicious if there was a problem with the tune.

VRZL113 · 01-10-2023, 11:34 AM

Owner's manual claims 60k or 65k (I forget the exact mileage) for the plugs in the ZL1.

I'll prob change mine around 45-50k.

jaymoo7 · 04-27-2023, 12:53 PM

115k and I haven't changed my stock ones yet. No issues or anything.

12-22-2022, 03:01 PM	#1
2013ZL1FUN Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015 Location: Dayton Ohio Area Posts: 499	Spark Plug Life For Supercharged Cars How often should plugs be changed on ZL1 engines? 16k on mine, 2013, so 10 years old. __________________ 2013 ZL1 CONVERTIBLE BRM A6 OHIO

12-22-2022, 04:02 PM	#2
Triple5even813 Learner of things Drives: 2013 ZL1 M6 coupe, black Join Date: Dec 2017 Location: Tampa, Florida Posts: 98 View My Garage	Plugs are cheaper than an engine, so I change mine probably more frequently than needed. Before every track day or any tuning, or once a year. Whichever comes first. I got really good longevity and great performance out of the TR6 plugs, but I upgraded to BR7EF on the last mod cycle. __________________ 2013 M6. Cammed, straight piped, 17# boost, E85. Tuned by CHenry Motorsports. 825rwhp @ 6450, 812 rwtq @ 3500. Stock unported blower, stock heads, stock bottom end, stock throttle body. Boost only, no meth, no nitrous

12-22-2022, 05:25 PM	#4
VChula SoCal C5 Family Member Drives: 1996 Z28 SS & 2014 ZL1 Join Date: Apr 2009 Location: Santee, CA Posts: 799	I replaced the ones on my 2014 ZL1 at 100,000 miles (never raced the car). 2 or 3 of the plugs were missing the center electrode tip. To my great surprise, the owner's manual specifies every 60,000 miles (for severe driving conditions) plug change intervals for the ZL1 instead of at 75,000 miles for all the other engine options __________________ Vance Chula - 1996 Camaro Z28 SS #1688 2014 Camaro ZL1 Coupe #1956

12-29-2022, 08:16 AM	#6
2013ZL1FUN Drives: 2013 ZL1 Convertible A6 BRM Join Date: Feb 2015 Location: Dayton Ohio Area Posts: 499	Well, I was just looking for what people have been doing in their actual practice, not what the book says. Maybe people had experiences where earlier or later changes were best for them in their situation. __________________ 2013 ZL1 CONVERTIBLE BRM A6 OHIO

12-31-2022, 11:19 AM	#7
Shodown Drives: 2014 ZL1 Join Date: Jun 2009 Location: Tucson, AZ Posts: 316	Ask your tuner. I have been running NGK TR7iX plugs for the past 4 years with no issues. __________________ 2014 ZL1 M6: Roto Fab Intake, LS3 TB, Long Tube Headers, NPP, Mild 2 Wild, JMS BAP, SMG aux pump, ID 1050X Injectors, DSX Flex Fuel Sensor, 10.5" DSX Lower Pulley, Killer Chiller, Tuned by Ted at JRE, Pedders XA Extreme coilovers, Mickey Thompson Street S/S on Weld S71s

12-22-2022, 04:10 PM	#3
Robmnrd Drives: 2013 ZL1 Join Date: Aug 2018 Location: Texas Posts: 110	Now that we are a decade along, what is the "best" plug to get for stock or only mildly modded examples of our cars?

01-01-2023, 10:13 PM	#8
yellow69z28rs Drives: 2013 ZL1 Convertible Black Join Date: Nov 2012 Location: Alexandria La. Posts: 363	I know a guy with a ZL1, who had a electrode on one of his plugs come off, it punched two holes the shape of the electrode through the valve, ruined the valve seat and imbedded itself into the top of the piston, I change mine often now. __________________ JRE 750 HP package Rag Top Rob

01-10-2023, 11:34 AM	#10
VRZL113 Drives: 2013 VR ZL1, M6 Join Date: Nov 2017 Location: PA Posts: 336	Owner's manual claims 60k or 65k (I forget the exact mileage) for the plugs in the ZL1. I'll prob change mine around 45-50k. __________________ #3257 \| 485whp 526wtq \| K&N 63-3079 \| Gates K080660HD (Green Belt) \| ACDelco UPF48R \| ZL1 Addons Wicker Bill \| Mild2Wild

04-27-2023, 12:53 PM	#11
jaymoo7 Drives: 2013 Camaro ZL1 A6 Join Date: May 2013 Location: Slidell, La Posts: 248	115k and I haven't changed my stock ones yet. No issues or anything. __________________ SOLD 2013 Camaro ZL1 M6 2013 ZL1 A6- Still completely stock.