ZL1 Plugs in Boosted SS?

christisnt · 11-27-2020, 02:47 PM

What do you guys think about putting the ACDelco 41-128’s in?
I have exhausted all my options on my Procharged ‘19.
With the stock SS plugs ACDelco 41-103 (I think) i was getting spark knock at like 5k at WOT in 4 gear and up.

So I changed over to the ltr7’s and i’m getting a massive amount of misfires. It starts cutting out at the top of a gear when WOT when doing a roll.
I had them gapped at .025, then gapped them to .040 per JRE recommendations and i just cannot get rid of the misfires.

So i just ordered some ACDelco 41-128’s which go in the ZL1’s and i’m leaving them at the stock .030 gap.

Drags1998 · 11-27-2020, 03:12 PM

Sounds like Your in over Your Head, Your TUNER should be able to ajust mixture and Timing to get You back on Track. Plugs are NOT Your only Problem!!!!

christisnt · 11-27-2020, 03:29 PM

Quote:

Originally Posted by Drags1998

Sounds like Your in over Your Head, Your TUNER should be able to ajust mixture and Timing to get You back on Track. Plugs are NOT Your only Problem!!!!

So it’s sounding like a tuning issue?

JCunningham · 11-28-2020, 04:42 AM

do you know you cant gap iridium plugs with a regular gapper? you will destroy them.

Drags1998 · 11-28-2020, 06:49 AM

Either your tuner or the Shop that installed the blower. Theres more than just bolting on parts these days, These engines are VERY fussy when it comes to timing and mixture when you add HP parts to them! Agood tuner can set you straight, Its not cheap, BUT well worth the cost.

christisnt · 11-29-2020, 05:26 PM

Quote:

Originally Posted by JCunningham

do you know you cant gap iridium plugs with a regular gapper? you will destroy them.

i had no idea. i figured it was just like any other old spark plug

christisnt · 11-29-2020, 05:27 PM

Quote:

Originally Posted by Drags1998

Either your tuner or the Shop that installed the blower. Theres more than just bolting on parts these days, These engines are VERY fussy when it comes to timing and mixture when you add HP parts to them! Agood tuner can set you straight, Its not cheap, BUT well worth the cost.

definitely expensive but worth it. i changed out the plugs and it seems to be a lot better but there’s still some tuning that i think needs to be adjusted

JCunningham · 11-29-2020, 08:11 PM

you probably damaged the electrode

PeteSS2018 · 11-30-2020, 02:53 AM

I'm about to install Brisk Silver racing into my boosted LT1. Will gap at .035 based on advice. Hopefully these are gonna suit, but reports I've had are all good.

Bangkok_ZL1 · 11-30-2020, 04:54 AM

Quote:

Originally Posted by Drags1998

There's more than just bolting on parts these days,...

It's become woefully obvious to me.

christisnt · 11-30-2020, 07:04 AM

Quote:

Originally Posted by JCunningham

you probably damaged the electrode

Thats always a possibility, but i’m fairly gentle with spark plugs. regardless of the electrode. and the spark plugs still fired, just inconsistent. i feel like a broken plug wouldn’t fire at all. would it? i’m personally convinced that it’s tuning at this point

SJFGTO · 11-30-2020, 07:31 AM

Quote:

Originally Posted by Drags1998

Sounds like Your in over Your Head, Your TUNER should be able to ajust mixture and Timing to get You back on Track. Plugs are NOT Your only Problem!!!!

^^^This^^^

laynlo15 · 11-30-2020, 07:31 AM

Don't forget to check the plug wires also. I had something like that a couple years ago, switched plugs and regapped them correctly and we finally found it on the dyno. Bad plug wire that just had a little break in it.

christisnt · 11-30-2020, 03:27 PM

Quote:

Originally Posted by laynlo15

Don't forget to check the plug wires also. I had something like that a couple years ago, switched plugs and regapped them correctly and we finally found it on the dyno. Bad plug wire that just had a little break in it.

i had to get rid of the stock wires. they were way to difficult to tell if they were connected properly in my opinion. i’m running the taylor wires now and they seem to sit on the plug and on the coil pretty well

11-27-2020, 02:47 PM	#1
christisnt MDRHRNT Drives: 2019 Camaro SS Fireball Edition Join Date: Oct 2019 Location: Oklahoma Posts: 65	ZL1 Plugs in Boosted SS? What do you guys think about putting the ACDelco 41-128’s in? I have exhausted all my options on my Procharged ‘19. With the stock SS plugs ACDelco 41-103 (I think) i was getting spark knock at like 5k at WOT in 4 gear and up. So I changed over to the ltr7’s and i’m getting a massive amount of misfires. It starts cutting out at the top of a gear when WOT when doing a roll. I had them gapped at .025, then gapped them to .040 per JRE recommendations and i just cannot get rid of the misfires. So i just ordered some ACDelco 41-128’s which go in the ZL1’s and i’m leaving them at the stock .030 gap.

11-29-2020, 08:11 PM	#8
JCunningham Drives: 2017 2SS M6 Join Date: Jun 2013 Location: WNY Posts: 7,070	you probably damaged the electrode __________________ real ZL1 wheels and brakes, 285/305 Michelin Pilot Super Sports, Pray ported Intake manifold, Soler Throttle Body, Rotofab intake, EFI Tuning Flex fuel kit, full American Racing Headers Exhaust, 1 7/8" w/ cats H pipe and mufflers. Full 1LE suspension, with BMR adjustable sway bars and links, GM aluminum cradle bushings, Hurst shifter with lighter reverse spring, TWM shifter knob, Tick level 1 transmission. I should have bought a ZL1

11-30-2020, 02:53 AM	#9
PeteSS2018 Drives: 2018 2SS Camaro Join Date: Mar 2020 Location: Melbourne, Australia Posts: 91	I'm about to install Brisk Silver racing into my boosted LT1. Will gap at .035 based on advice. Hopefully these are gonna suit, but reports I've had are all good. __________________ 2018 2SS, Hyper Blue, Australian HSV delivered 2.9L Whipple 98RON tuned 650hp/850Nm Elite Engineering E2 Catch Can Eibach Prokit springs Mamo LT1 Ported TB

11-30-2020, 07:31 AM	#13
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Don't forget to check the plug wires also. I had something like that a couple years ago, switched plugs and regapped them correctly and we finally found it on the dyno. Bad plug wire that just had a little break in it. __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

11-27-2020, 03:12 PM	#2
Drags1998 Drives: 15 SilveradoLTZ,162SSVert BlazerRS Join Date: Dec 2015 Location: Minot,Maine Posts: 644	Sounds like Your in over Your Head, Your TUNER should be able to ajust mixture and Timing to get You back on Track. Plugs are NOT Your only Problem!!!!

11-28-2020, 06:49 AM	#5
Drags1998 Drives: 15 SilveradoLTZ,162SSVert BlazerRS Join Date: Dec 2015 Location: Minot,Maine Posts: 644	Either your tuner or the Shop that installed the blower. Theres more than just bolting on parts these days, These engines are VERY fussy when it comes to timing and mixture when you add HP parts to them! Agood tuner can set you straight, Its not cheap, BUT well worth the cost.

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