Let's talk spark plugs! - Page 3 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

AXV · 06-26-2013, 11:06 PM

Yea I'm reviving and old thread but better than making another thread. I am getting new plugs tomorrow. I have iridiums in there right now in my KA24DE but planning to get copper ones. The only "mod" I have on my s13 is a catback exhaust. Will I be ok with using stock FSM recommended gap? Or do I need to change it?

Thanks guys

*!Zar!* · 06-27-2013, 02:00 AM

Stock is fine.

AXV · 06-27-2013, 02:02 AM

Thanks! NGK V Power should be good right?

*!Zar!* · 06-27-2013, 09:38 AM

The V powers are ngk bkr7e. Those are fine.

That's all I run.

S T Y L E S · 06-29-2013, 09:19 PM

What's would u guys recommend for a stock KA? Brand, heat and gap??

*dawagarage* · 06-29-2013, 11:00 PM

btw if you guys are interested i have some NGK schwag for sale
fender protectors, coffee mug, water tumbler.

EsChassisLove · 06-30-2013, 12:15 AM

Quote:

Originally Posted by turbociv910

Engines get better gas mileage and less emissions the hotter they are, that is why most cars have an operating temp of 200-220. Some iron blocks are 230!. Iridium increases heat increasing fuel mileage. Hotter everything is, the air the engine is consuming is less dense(= less fuel). Just like when its cold you expect more power right?

Copper runs cooler, has colder spark(naturally) to reduce detonation for higher horsepower and aftermarket applications. Many, countless times have i taken out iridium plugs in exchange for copper and gained power, or got rid of a miss fire.

never buy "iridium racing" plugs for your car, you will waste the $$ and i will say i told you so.

downside is that a copper plug wears out twice as fast, but who cares when they cost $3 a piece.

Had misfire with my .30 Iridiums. Swapped to cheap copper and .25 gap and misfire disappeared.

Going to dyno with Iridiums and then switch to copper to see a difference.

EnemyS15 · 06-30-2013, 10:10 AM

Awesome info ! Here, I have been reading up on heat ranges and what not. Definitely going with Ngk iridiums. Thought about going with a heat range of 8 for my 460-530 hp rb25. I have the general hp range due to my over all tune. Do you guys think 8 is a suitable heat range. It's still pretty new fresh material I am learning.

I have always just went with copper. Never had any probs, cheap, replace 1x a month with my monthly oil change on my previous cars. Iridium comes around and now takes the stage when it comes to spark plugs.

ILoveJDM · 06-30-2013, 11:58 AM

Ive used a few types of DENSO iridiums

IK20
IK22
IK24 (currently using)

HEAT RANGE INFO COMPARABLE

DENSO 16 20 22 24 27 29 31 32 34 35
NGK 5 6 7 8 9 9.5 10 10.5 11 11.5
CHAMPION 12,11 10,9 8,7 6,63,61 4,59 57 55 53
BOSCH 8 7,6 5 4 3 2

I used the IK22 last year, the white stuff ended up actually cracking and going through my motor. Currently on the IK24 with 20psi 400whp sr22det and theyre great.
only downside is that theyre $10 a plug. Not bad since I just came back from owning a rotary....$40 set of plugs ..which i changed all the time

S T Y L E S · 07-01-2013, 08:08 PM

Quote:

Originally Posted by S T Y L E S

What's would u guys recommend for a stock KA? Brand, heat and gap??

Anybody? Looking to replace it out this week

EsChassisLove · 07-01-2013, 08:22 PM

Replace them with stock.

rightcoastimports · 03-22-2021, 01:04 AM

edit:: running BKR7E .28 gap on s13 sr 12-13psi

06-27-2013, 02:00 AM	#62
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	Stock is fine. __________________

06-27-2013, 09:38 AM	#64
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	The V powers are ngk bkr7e. Those are fine. That's all I run. __________________

06-29-2013, 11:00 PM	#66
dawagarage Premium Member Join Date: Sep 2006 Location: Bremerton, WA Age: 36 Posts: 2,037 Trader Rating: (23) Feedback Score: 23 reviews	btw if you guys are interested i have some NGK schwag for sale fender protectors, coffee mug, water tumbler. __________________ formerly known as "hotboiblaze" ratsun: dawa (73 datsun 620) clublexus: properD (97 sc300)

06-30-2013, 11:58 AM	#69
ILoveJDM Nissanaholic! Join Date: Jul 2006 Location: SK Canada! Posts: 1,947 Trader Rating: (27) Feedback Score: 27 reviews	Ive used a few types of DENSO iridiums IK20 IK22 IK24 (currently using) HEAT RANGE INFO COMPARABLE DENSO 16 20 22 24 27 29 31 32 34 35 NGK 5 6 7 8 9 9.5 10 10.5 11 11.5 CHAMPION 12,11 10,9 8,7 6,63,61 4,59 57 55 53 BOSCH 8 7,6 5 4 3 2 I used the IK22 last year, the white stuff ended up actually cracking and going through my motor. Currently on the IK24 with 20psi 400whp sr22det and theyre great. only downside is that theyre $10 a plug. Not bad since I just came back from owning a rotary....$40 set of plugs ..which i changed all the time __________________ DODOlogic.ca

07-01-2013, 08:22 PM	#71
EsChassisLove Nissanaholic! Join Date: Jan 2011 Location: San Diego Age: 32 Posts: 2,090 Trader Rating: (26) Feedback Score: 26 reviews	Replace them with stock. __________________ IG/TikTok-ThatS14_Z06guy

06-26-2013, 11:06 PM	#61
AXV Leaky Injector Join Date: Nov 2012 Location: BC, Canada Posts: 139 Trader Rating: (2) Feedback Score: 2 reviews	Yea I'm reviving and old thread but better than making another thread. I am getting new plugs tomorrow. I have iridiums in there right now in my KA24DE but planning to get copper ones. The only "mod" I have on my s13 is a catback exhaust. Will I be ok with using stock FSM recommended gap? Or do I need to change it? Thanks guys

06-27-2013, 02:02 AM	#63
AXV Leaky Injector Join Date: Nov 2012 Location: BC, Canada Posts: 139 Trader Rating: (2) Feedback Score: 2 reviews	Thanks! NGK V Power should be good right?

06-29-2013, 09:19 PM	#65
S T Y L E S Leaky Injector Join Date: Mar 2013 Location: Texas Posts: 144 Trader Rating: (0) Feedback Score: 0 reviews	What's would u guys recommend for a stock KA? Brand, heat and gap??

06-30-2013, 10:10 AM	#68
EnemyS15 Nissanaholic! Join Date: Jul 2006 Location: Tampa, Florida Posts: 1,677 Trader Rating: (14) Feedback Score: 14 reviews	Awesome info ! Here, I have been reading up on heat ranges and what not. Definitely going with Ngk iridiums. Thought about going with a heat range of 8 for my 460-530 hp rb25. I have the general hp range due to my over all tune. Do you guys think 8 is a suitable heat range. It's still pretty new fresh material I am learning. I have always just went with copper. Never had any probs, cheap, replace 1x a month with my monthly oil change on my previous cars. Iridium comes around and now takes the stage when it comes to spark plugs.

03-22-2021, 01:04 AM	#72
rightcoastimports Zilvia Addict Join Date: Jul 2006 Location: Boston Area Age: 36 Posts: 663 Trader Rating: (15) Feedback Score: 15 reviews	edit:: running BKR7E .28 gap on s13 sr 12-13psi __________________ 95 SR Zenki \| @ e_form daily - A34 Maxima \| A36 Maxima Last edited by rightcoastimports; 03-23-2021 at 09:58 PM.. Reason: researched

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