NGK LTR7IX-11 (stock #6510) vs LZTR7AIX-13(#5107)

shinysun · 05-17-2017, 06:16 PM

I have a question on the 2 plugs.

The specs are almost the same for each other except "projection"

6510 has 0.043" gap while 5107 has 0.05" gap, seems 6510 is close to the genuine spark plugs' gap (around 0.04").

The thing is the manual of Whipple supercharger.

It recommends using 5107 and making the gap reduced 0.032"

Is there any reason for that? and seems it is more reasonable to use 6501 and make the smaller adjustment.

and I am using only 9~11PSI (planning), should I adjust the gap? or leave it like 0.4" around. It is quite confusing. Ted said 0.039~0.04 would good for more power due to the system is different from other vehicles while Whipple said 0.032" is recommended.

Thank you.

nick_casper · 05-17-2017, 10:55 PM

I used the 6510 at .32 and it is working perfect so far. Idle doesn't stumble anymore than stock. Whipple called for the 5107 but I already ordered the 6510 and just used them. Are you still on the stock plugs?

MR 45TH · 05-18-2017, 07:17 AM

Quote:

Originally Posted by nick_casper

I used the 6510 at .32 and it is working perfect so far.

I am also running those however I have them gapped at .40

80sMetalDude · 05-18-2017, 08:03 AM

I have the 5107 gap to 32 will let you know once she's running...

shinysun · 05-18-2017, 07:21 PM

"We do only recommend the LZTR7IX. You will need to gap them down from the 0.043" to the Instructed 0.032""

I got this email from Whipple, but it has 0.05" gap...confusing.

shinysun · 05-18-2017, 07:22 PM

Quote:

Originally Posted by nick_casper

I used the 6510 at .32 and it is working perfect so far. Idle doesn't stumble anymore than stock. Whipple called for the 5107 but I already ordered the 6510 and just used them. Are you still on the stock plugs?

Yes, still stock plugs.

shinysun · 05-26-2017, 07:03 AM

I bought the both and compared..

The size is little bit different..

Joe's_cool_1le · 09-29-2017, 10:29 AM

Which one did you go with and at what gap?

JANNETTYRACING · 09-29-2017, 11:12 AM

Quote:

Originally Posted by shinysun

I have a question on the 2 plugs.

The specs are almost the same for each other except "projection"

6510 has 0.043" gap while 5107 has 0.05" gap, seems 6510 is close to the genuine spark plugs' gap (around 0.04").

The thing is the manual of Whipple supercharger.

It recommends using 5107 and making the gap reduced 0.032"

Is there any reason for that? and seems it is more reasonable to use 6501 and make the smaller adjustment.

and I am using only 9~11PSI (planning), should I adjust the gap? or leave it like 0.4" around. It is quite confusing. Ted said 0.039~0.04 would good for more power due to the system is different from other vehicles while Whipple said 0.032" is recommended.

Thank you.

We are using 6509 LTR6IX-11 gap at 0.042 on builds below 10psi boost.

I found the 7s would foul occasionally if you do too many cold starts without driving the car hard.

ProCharger · 10-02-2017, 11:12 AM

I personally like the none projected tip of the -11

I don't see myself changing anytime.

80sMetalDude · 10-02-2017, 01:51 PM

I now have about 2500 miles on the Whipple using these gapped to 35.

NGK IRIDIUM IX Spark Plug LZTR7AIX-13 # 5107

laynlo15 · 10-02-2017, 07:26 PM

We just installed the Lt4 plugs in mine.

ProCharger · 10-03-2017, 07:56 AM

Quote:

Originally Posted by laynlo15

We just installed the Lt4 plugs in mine.

I made 914 rwhp on a set of those.

Fast6.3 · 10-29-2017, 12:03 PM

Anybody using the Brisk

05-17-2017, 06:16 PM	#1
shinysun Drives: 2016 Camaro SS Join Date: Jul 2016 Location: Korea Posts: 417	NGK LTR7IX-11 (stock #6510) vs LZTR7AIX-13(#5107) I have a question on the 2 plugs. The specs are almost the same for each other except "projection" 6510 has 0.043" gap while 5107 has 0.05" gap, seems 6510 is close to the genuine spark plugs' gap (around 0.04"). The thing is the manual of Whipple supercharger. It recommends using 5107 and making the gap reduced 0.032" Is there any reason for that? and seems it is more reasonable to use 6501 and make the smaller adjustment. and I am using only 9~11PSI (planning), should I adjust the gap? or leave it like 0.4" around. It is quite confusing. Ted said 0.039~0.04 would good for more power due to the system is different from other vehicles while Whipple said 0.032" is recommended. Thank you. Last edited by shinysun; 05-17-2017 at 06:58 PM.

05-17-2017, 10:55 PM	#2
nick_casper Drives: 16 2SS Join Date: Feb 2017 Location: Casper Posts: 288	I used the 6510 at .32 and it is working perfect so far. Idle doesn't stumble anymore than stock. Whipple called for the 5107 but I already ordered the 6510 and just used them. Are you still on the stock plugs? __________________ 2016 2SS, A8, Whipple 3.25 pulley, Mishimoto catch can, C7 Carbon fiber splitter and skirts, GM black brake and tail lights. PLX wideband O2/HP tuners. Apex VS-5RS in 19x11 and 19x12.

05-26-2017, 07:03 AM	#7
shinysun Drives: 2016 Camaro SS Join Date: Jul 2016 Location: Korea Posts: 417	I bought the both and compared.. The size is little bit different.. Attached Images

09-29-2017, 10:29 AM	#8
Joe's_cool_1le Drives: Black 2017 Camaro SS 1LE Join Date: Dec 2016 Location: Virginia Beach Posts: 1,319	Which one did you go with and at what gap? __________________ 2017 1LE SS Black - Mods - Forged - lowered compression - BTR custom Cam - Whipple, 3.500 upper and 8.0 lower pulley, Roto-Fab, 1 7/8 Kooks headers, off road pipes, & 3" Kooks full exhaust. LT4 fuel system, with Alky single nozzle running 100% meth. (not installed yet) DSX Tuning flex fuel and DSX tuning Aux pump

10-02-2017, 07:26 PM	#12
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,862	We just installed the Lt4 plugs in mine. __________________ 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

05-18-2017, 08:03 AM	#4
80sMetalDude Drives: . Join Date: Jan 2017 Location: . Posts: 508	I have the 5107 gap to 32 will let you know once she's running...

05-18-2017, 07:21 PM	#5
shinysun Drives: 2016 Camaro SS Join Date: Jul 2016 Location: Korea Posts: 417	"We do only recommend the LZTR7IX. You will need to gap them down from the 0.043" to the Instructed 0.032"" I got this email from Whipple, but it has 0.05" gap...confusing.

10-02-2017, 11:12 AM	#10
ProCharger Drives: Many C7's Join Date: Apr 2014 Location: Kansas City Posts: 573	I personally like the none projected tip of the -11 I don't see myself changing anytime.

10-02-2017, 01:51 PM	#11
80sMetalDude Drives: . Join Date: Jan 2017 Location: . Posts: 508	I now have about 2500 miles on the Whipple using these gapped to 35. NGK IRIDIUM IX Spark Plug LZTR7AIX-13 # 5107

10-29-2017, 12:03 PM	#14
Fast6.3 Drives: 2016 2SS coupe 2015 3LT Stingray Join Date: Aug 2012 Location: El paso texas Posts: 880 View My Garage	Anybody using the Brisk __________________ Ported intake manifold and throttle body kooks 2" headers no cats

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