Spark Plug Decesion. Did a search.. 500hp+
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Spark Plug Decesion. Did a search.. 500hp+
Well I see a topic on just about every type of plug, but nothing is giving me the answer i am looking for.
I currently run NGK 9's all around, these are good for 420hp. I am moving up to 550hp range and I am going to need colder plugs.
I have a set of 10.5 and 11 HKS plugs.. but I plan on using these for the track only.
Needed:
-Plug that will handle 550hp range
-Plug that will work as a daily driving plug (meaning it can start cold, and idle fine until car reaches optimal temperature)
-Can't run more than $10 a peice.
Most race plugs are $25 and up. I just need a set of plugs that can do it.
Now.. I hear stories about gapped vs resistor type plugs.. etc etc. The stockers are resistor type with the electrode in the middle correct?
I am looking into the following:
NGK BR10EIX (10 heat Range, Iridium)
or
NGK B10EGV (10 heat Range, Gappable, non resistor type)
I also hear the B10EGV requires a thinner socket for installation.
Basically, from EXPERIENCE which plug would be best suited?
I'd be running 22psi with pump and methanol, daily driver. See sig for additional mods. THanks
-Darren-
I currently run NGK 9's all around, these are good for 420hp. I am moving up to 550hp range and I am going to need colder plugs.
I have a set of 10.5 and 11 HKS plugs.. but I plan on using these for the track only.
Needed:
-Plug that will handle 550hp range
-Plug that will work as a daily driving plug (meaning it can start cold, and idle fine until car reaches optimal temperature)
-Can't run more than $10 a peice.
Most race plugs are $25 and up. I just need a set of plugs that can do it.
Now.. I hear stories about gapped vs resistor type plugs.. etc etc. The stockers are resistor type with the electrode in the middle correct?
I am looking into the following:
NGK BR10EIX (10 heat Range, Iridium)
or
NGK B10EGV (10 heat Range, Gappable, non resistor type)
I also hear the B10EGV requires a thinner socket for installation.
Basically, from EXPERIENCE which plug would be best suited?
I'd be running 22psi with pump and methanol, daily driver. See sig for additional mods. THanks
-Darren-
What about a ignitionamplifier? Like the HKS earth kit? http://hksusa.com/categories/?id=1954
The Egv's are your best bet. sparkplugs.com carrys B11egv's also which I run and have 0 problems with. I believe crispeed and a few other real high hp guys swear by the EGV's also
www.kgparts.com carries the socket you need for like 20$
www.kgparts.com carries the socket you need for like 20$
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Originally Posted by eatmyclutch
What about a ignitionamplifier? Like the HKS earth kit? http://hksusa.com/categories/?id=1954
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Originally Posted by Bacon
The Egv's are your best bet. sparkplugs.com carrys B11egv's also which I run and have 0 problems with. I believe crispeed and a few other real high hp guys swear by the EGV's also
www.kgparts.com carries the socket you need for like 20$
www.kgparts.com carries the socket you need for like 20$
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Originally Posted by 1wide7
i run the 10egv with no problems andi got them at auto zone
I'm concerned with them fouling under daily driving conditions.
I am thinking of the NGK Racing R6725 11 heat range. I hear they work alright for daily driving.
I should be putting down 500+ hp.. on a T51r KAI at 22psi with Pump and Methanol.
Trying to find the best way to go.
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R6725 10.5 heat range ran great for me on the street, with a good tune and a lean idle and cruise you should have no problems with fouling. These performed way better, and I mean way better than any other plug I tried. Cost >> $10 tho
Originally Posted by dhahlen
Will B11EGV's give me a problem on cold starts? I assume the ignition amp will help with that... and what is the gap I need to use on them?
To be honest i havent had any prob,
but im running 2 crane HI-6 boxes, and using the lx92 fireball coils. so my ignition could get them to fire in pretty much anything.
Daily driving= still get to go to WOT quite often
, with a good tune you'll be fine
Thread Starter
Joined: Jun 2003
Posts: 4,022
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From: Avondale, AZ
Originally Posted by twokrx7
R6725 10.5 heat range ran great for me on the street, with a good tune and a lean idle and cruise you should have no problems with fouling. These performed way better, and I mean way better than any other plug I tried. Cost >> $10 tho
Or did you simple mean COST > $10 - cause they're not cheap. I got HKS plugs, but i refuse to use those.. lol. They're too damn expensive as it is.. i guess they're about the same.
If I use R6725 11's in the Leading and BUR9EQP or whatever in the trailings.. would that be ok?
Last edited by dhahlen; Apr 22, 2006 at 05:38 PM.
Doesn't look like your going to beat the B11EGV's....$5.37/ea.
http://sparkplugs.com/results_cross....11EGV&x=46&y=5
Have people found these to foul when street driven?
Justin
http://sparkplugs.com/results_cross....11EGV&x=46&y=5
Have people found these to foul when street driven?
Justin
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Oh well...
2 - NGK Gold palladium
Stock Number: 5831
Part Number: B11EGV
Unit Price: $5.37
Extended Price: $10.74
2 - NGK Gold palladium
Stock Number: 5927
Part Number: B10EGV
Unit Price: $5.37
Extended Price: $10.74
Picked up a set of 10's and a set of 11's
We'll see which one works best, starting with 10's. I'm going to gap them at .022.
I am going to run the standard BUR9EQP's for trailing.
2 - NGK Gold palladium
Stock Number: 5831
Part Number: B11EGV
Unit Price: $5.37
Extended Price: $10.74
2 - NGK Gold palladium
Stock Number: 5927
Part Number: B10EGV
Unit Price: $5.37
Extended Price: $10.74
Picked up a set of 10's and a set of 11's
We'll see which one works best, starting with 10's. I'm going to gap them at .022.
I am going to run the standard BUR9EQP's for trailing.
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
No..
Kan is tuning.. if I am getting misfiring, they're not cold enough. I wouldn't expect to see misfiring until 18 psi plus... IF they weren't up to par. The 10's should be fine for 23psi. Someone told me the rule of thumb was 1 heat range per 5psi over 15. So if I am going to do 20psi, 10's should be fine... 23psi would be about 10.5 but i am using methanol... and Steve knows what he is doing. I am not sure how accurate that little 'rule' is.. but we'll see.
I have race plugs from HKS on hand just incase i need to swap those during the tune.
Kan is tuning.. if I am getting misfiring, they're not cold enough. I wouldn't expect to see misfiring until 18 psi plus... IF they weren't up to par. The 10's should be fine for 23psi. Someone told me the rule of thumb was 1 heat range per 5psi over 15. So if I am going to do 20psi, 10's should be fine... 23psi would be about 10.5 but i am using methanol... and Steve knows what he is doing. I am not sure how accurate that little 'rule' is.. but we'll see.
I have race plugs from HKS on hand just incase i need to swap those during the tune.
Joined: May 2004
Posts: 2,988
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From: Home of the 305 Boyz(miami)
i just bought 2 10's from racingbeat for 9 bucks a piece. i plan running 2 9's & 2 10's
http://www.racingbeat.com/resultset....rtNumber=11524
http://www.racingbeat.com/resultset....rtNumber=11524
Thread Starter
Joined: Jun 2003
Posts: 4,022
Likes: 24
From: Avondale, AZ
Originally Posted by darkphantom
i just bought 2 10's from racingbeat for 9 bucks a piece. i plan running 2 9's & 2 10's
http://www.racingbeat.com/resultset....rtNumber=11524
http://www.racingbeat.com/resultset....rtNumber=11524
https://www.sparkplugs.com/results_c...R10EIX&x=0&y=0
They have them for $6.95.
Anyway, the EIX looks good.. but we'll see how the EGV's work and if all else.. i'll throw in my HKS plugs and spend $120 for a new set each month.
Joined: Oct 2001
Posts: 4,772
Likes: 2
From: My 350Z Roadster kicks my RX7's butt
That depends if he's local. I can drive to Racing Beat and pick them up the same day. It's not very far either. Sparkplugs.com is in CA so in addition to tax there is a shipping fee.


