Drivetrain NGK (1422) ILKR8E6 Spark Plug????? Really Confused!!!
#1
NGK (1422) ILKR8E6 Spark Plug????? Really Confused!!!
Hey all... I went a bought a set of 4 NGK (!422) ILKR8E6 spark plugs based on what Manic Tunes told me and from reading up here on the forum.
Everywhere I'm reading that I need a thin-wall 14mm 12 pt spark plug socket to do the swap but the NGK (1422) ILKR8E6 spark plugs ARE not 14mm they are 16mm... so now I'm really confused!
So here's the question... am I going to need the thin-wall 14mm, 12pt socket to remove the factory plugs and then get a thin wall 16mm socket to install these new NGK spark plugs??? I think I have to be missing something here or not following directions or something... Can someone whose done this maybe shed some light on what's going on?
Thank you so much... Alex
Everywhere I'm reading that I need a thin-wall 14mm 12 pt spark plug socket to do the swap but the NGK (1422) ILKR8E6 spark plugs ARE not 14mm they are 16mm... so now I'm really confused!
So here's the question... am I going to need the thin-wall 14mm, 12pt socket to remove the factory plugs and then get a thin wall 16mm socket to install these new NGK spark plugs??? I think I have to be missing something here or not following directions or something... Can someone whose done this maybe shed some light on what's going on?
Thank you so much... Alex
#2
#5
My '07 MCS came OEM with ILZKBR7A-8G aka stock # 5992. The heat range is designated as "7". Stock # 1442 or ILKR8E6 is heat range "8", or one range colder than my OEM. Can't comment on JCW --- I don't have one.
I've read that for every 75HP increase, one step colder heat range is recommended. However with a custom tune, regardless of HP increase, it's a good idea to follow your tuners suggestion.
I've read that for every 75HP increase, one step colder heat range is recommended. However with a custom tune, regardless of HP increase, it's a good idea to follow your tuners suggestion.
#7
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#8
My '07 MCS came OEM with ILZKBR7A-8G aka stock # 5992. The heat range is designated as "7". Stock # 1442 or ILKR8E6 is heat range "8", or one range colder than my OEM. Can't comment on JCW --- I don't have one.
I've read that for every 75HP increase, one step colder heat range is recommended. However with a custom tune, regardless of HP increase, it's a good idea to follow your tuners suggestion.
I've read that for every 75HP increase, one step colder heat range is recommended. However with a custom tune, regardless of HP increase, it's a good idea to follow your tuners suggestion.
#9
Do not mean to thread jack' but i Currently put a manic stage 3 map C tune on the wife's car! 07 mcs' with all the proper mod's ' and I want with a stage colder then stock and it did not like it one bit! Any ideas should I try a 2 stage colder! Currently running stock spec plugs and no problem's !!
#11
#12
Do not mean to thread jack' but i Currently put a manic stage 3 map C tune on the wife's car! 07 mcs' with all the proper mod's ' and I want with a stage colder then stock and it did not like it one bit! Any ideas should I try a 2 stage colder! Currently running stock spec plugs and no problem's !!
#14
Do not mean to thread jack' but i Currently put a manic stage 3 map C tune on the wife's car! 07 mcs' with all the proper mod's ' and I want with a stage colder then stock and it did not like it one bit! Any ideas should I try a 2 stage colder! Currently running stock spec plugs and no problem's !!
I only switched to the 1422's on Manic's recommendation, but I did so BEFORE the Manic install. There was a noticeable improvement --- more so than just a new OEM plug. And this was while still pumping out 312 WHP!
And good luck finding a plug 2 ranges colder. I've read there is one, an NGK, but un-godly expensive and special order only --- used by some racing team. Take a week or two off and read thru this thread --- http://www.minitorque.com/forum/f272...47/#post447094 I'm pretty sure this is where I read about it. Maybe another brand has one? Be sure and verify all the specs are compatible if you find one.
Last edited by oldbrokenwind; 10-08-2017 at 03:27 PM. Reason: screwed up the PN
#16
hi thanks for reporting but that doesn't make any sense. what model/heat range are your stock plugs and what model/heat range are the plugs that gave you problems? what gap did you run them both at.?
#18
I'm also getting similar issues after changing to these plugs. It was running pretty smooth with the the stock NGK plugs from BMW, but after changing to these iridium plugs the idle is rough, engine noisey (not sure if its knocking or miss firing), looks to be spitting out unburned fuel from the exhaust. I'm running the stage 3 from Manic on performance mode C (95ron but I put in 98).
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
#19
I'm also getting similar issues after changing to these plugs. It was running pretty smooth with the the stock NGK plugs from BMW, but after changing to these iridium plugs the idle is rough, engine noisey (not sure if its knocking or miss firing), looks to be spitting out unburned fuel from the exhaust. I'm running the stage 3 from Manic on performance mode C (95ron but I put in 98).
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
Are you running meth ?
They way I fix it was running race fuel or meth !
#20
I'm also getting similar issues after changing to these plugs. It was running pretty smooth with the the stock NGK plugs from BMW, but after changing to these iridium plugs the idle is rough, engine noisey (not sure if its knocking or miss firing), looks to be spitting out unburned fuel from the exhaust. I'm running the stage 3 from Manic on performance mode C (95ron but I put in 98).
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
I put the stock ones back in and its back to running smoothly again. Not sure the issue. I left the gap on plugs as they were, 0.020" I believe.
#22
In response to the other reply, I don't believe "running meth" is a prerequisite to using these plugs with the tune.
#23
The iridium's are not the easiest plugs to gap without damaging. I guess I'll give it a go. The guys at Jmtcperformance.com also recommend a wider gap. I didn't think it was going to make much a difference though.
In response to the other reply, I don't believe "running meth" is a prerequisite to using these plugs with the tune.
In response to the other reply, I don't believe "running meth" is a prerequisite to using these plugs with the tune.
sounds like your a manic tune expert ! Best of luck
#24
No need to gap them, leave them at .6mm. Lowes sells the 12pt 14mm deep thin socket for $3.00
mQubed Motorsport, Manic/NM Tuning Dealer
mQubed Motorsport, Manic/NM Tuning Dealer
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2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
2013 GP2 #295, 270whp/310wtq, KO4 47mm Turbo, 18" NM Wheels, Alta intake, Manic Stage III+, HFS-3 Meth, 30% E85 Blend, Forged IC, Alta Hot Pipe, P&P/Ceramic Exhaust Manifold, m3 Extreme Ceramic DP, Vibrant mid res, 4" Double walled Tips, WMW/KW V3 CO, Alta Rear CA, CREE Fogs, Black out F/R Rings and Gas Cap, M7 CF Front Splitter, and No Stickers. MORE TO COME!! Previous 04Triple Black 17% Alta, MM Air/H2O, CAI, OBX Header, FBT Head, Shrick Cam, 234whp
#25
Is running race fuel or methanol really the only solution that the others experienced in here? It seems a bit drastic