Spark plugs?

h8z2luze · 06-28-2006, 06:01 AM

I know you all like ngk but What about bosh platnum 4's???

skunk · 06-28-2006, 07:51 AM

I was reading A great article about how In any forced induction or No2 charged cars, certin spark plugs will actually heat up so much it can work like a gloe plug, igniting the gas at detrimental times. It's all about the ground coming out of the top of the plug if it's to long it will make excessive heat(no pun intended) I personally have run the platnum 4's and cant tell the diff. But all I know is, if their are 700+ whp supras running ngk's, works for me.

suprasforlife · 06-28-2006, 10:46 AM

I've used them both and personally I like the +4's. Acceleration and deceleration feel smoother in my car with them. This is in my mk2 with the 5m-ge. I replaced the cap, rotor, and wires to which makes everything better.
Have not done it yet in my mk3 as I just got it a few days ago. Happy B-Day to me.

h8z2luze · 06-28-2006, 03:59 PM

Thanks for the resopnses. I had the 4's in a eclipse and they seemed to do ok. I heard they burn valves though cause they run to hot or something.

theWeezL · 06-28-2006, 06:31 PM

While the claims of the +4 look great on paper in theory they do little to help performance. A spark will take the path of least resistance, so that will be the electrode that is closest to the core. As they wear this gap changes and a new electrod emerges as the shortest path. The problem is the core is still wearing away all this time as well. The +4's are great if you want a super long lasting maintenance free plug. BUT, if your looking for performance the thing to look for is the strongest spark. The key here is resistance. The lower the resistance, the better the spark will be. To be honest there is nothing new on the market that performs significantly better than a copper core plug. The problem is in longevity. Basically its a trade off...lifespan vs resistance

I am currently trying the new irridium NGK's and I felt improvement over the bosche Platinums that came out (not a fair comparison though as my platinums were toast)

h8z2luze · 06-29-2006, 03:05 AM

How much were the NGK's? I might go with those.

06-28-2006, 06:01 AM	#1
h8z2luze 12psi boost Join Date: May 2006 Location: Nor*Cal Posts: 338	Spark plugs? I know you all like ngk but What about bosh platnum 4's??? __________________ 1989 Supra 7MGE MK3 5-speed project... http://www.cardomain.com/ride/2385505 Last edited by h8z2luze; 06-29-2006 at 03:06 AM.

06-28-2006, 07:51 AM	#2
skunk 3" Exhaust Join Date: Jun 2005 Location: southern oregon Posts: 133	spark I was reading A great article about how In any forced induction or No2 charged cars, certin spark plugs will actually heat up so much it can work like a gloe plug, igniting the gas at detrimental times. It's all about the ground coming out of the top of the plug if it's to long it will make excessive heat(no pun intended) I personally have run the platnum 4's and cant tell the diff. But all I know is, if their are 700+ whp supras running ngk's, works for me.

06-28-2006, 03:59 PM	#4
h8z2luze 12psi boost Join Date: May 2006 Location: Nor*Cal Posts: 338	Thanks for the resopnses. I had the 4's in a eclipse and they seemed to do ok. I heard they burn valves though cause they run to hot or something. __________________ 1989 Supra 7MGE MK3 5-speed project... http://www.cardomain.com/ride/2385505

06-28-2006, 06:31 PM	#5
theWeezL 12psi boost Join Date: May 2006 Location: Oregon Posts: 376	While the claims of the +4 look great on paper in theory they do little to help performance. A spark will take the path of least resistance, so that will be the electrode that is closest to the core. As they wear this gap changes and a new electrod emerges as the shortest path. The problem is the core is still wearing away all this time as well. The +4's are great if you want a super long lasting maintenance free plug. BUT, if your looking for performance the thing to look for is the strongest spark. The key here is resistance. The lower the resistance, the better the spark will be. To be honest there is nothing new on the market that performs significantly better than a copper core plug. The problem is in longevity. Basically its a trade off...lifespan vs resistance I am currently trying the new irridium NGK's and I felt improvement over the bosche Platinums that came out (not a fair comparison though as my platinums were toast) __________________ *____________* *Eagles may soar, but weezl's never get sucked into jet engines!*

06-29-2006, 03:05 AM	#6
h8z2luze 12psi boost Join Date: May 2006 Location: Nor*Cal Posts: 338	How much were the NGK's? I might go with those. __________________ 1989 Supra 7MGE MK3 5-speed project... http://www.cardomain.com/ride/2385505

06-28-2006, 10:46 AM	#3
suprasforlife 3" Exhaust Join Date: Jun 2006 Location: Montana Posts: 71	I've used them both and personally I like the +4's. Acceleration and deceleration feel smoother in my car with them. This is in my mk2 with the 5m-ge. I replaced the cap, rotor, and wires to which makes everything better. Have not done it yet in my mk3 as I just got it a few days ago. Happy B-Day to me.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Spark Plugs (1G-GE vs 7M-GE)	makemedie	Non-Generation Specific Questions	5	10-26-2008 05:19 AM
NGK Spark Plugs	91 Supra	MKIII Supra	5	08-07-2007 03:52 AM
1986.5 with blown Head Gasket - Removing Spark Plugs	unkymurch	Non-Generation Specific Questions	10	03-02-2007 06:48 PM
Issues After Changing Spark Plugs	Getphazed	MKIII Supra	8	11-03-2006 12:31 PM
Spark plugs & WIRES	HEMAN	MKIII Supra	2	11-03-2006 05:31 AM