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Old Dec 8, 2008 | 06:54 AM
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Spark Plugs help

hi
i remember someone said there is a Colder spark plug we (boosted guys) can run and increase spark and HP....which one was it and where can i get it?
thanks
 
Old Dec 8, 2008 | 11:50 AM
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Originally Posted by FELIXY69
hi
i remember someone said there is a Colder spark plug we (boosted guys) can run and increase spark and HP....which one was it and where can i get it?
thanks
I am running NGK Iridium IX plugs 1 step colder than stock (maybe even 2 actually), but Ben at AJ-R recommended I use the cheaper NGK V-Power Racing Plug 7173, but I wasn't able to find them in town...

Part No. - R5672A-8
 

Last edited by YeeFit; Dec 8, 2008 at 02:39 PM.
Old Dec 8, 2008 | 01:46 PM
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Brand: NGK Spark Plugs
Product Line: NGK Racing Spark Plugs
Part Type: Spark Plugs
Part Number: NGK-7173
Shorty Spark Plug: No
Resistor: No
Manufacturer Heat Range: 8
Electrode Core Material: Copper
Electrode Tip Material: Nickel alloy
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.750 in.
Spark Plug Seat Style: Gasket
Wrench Diameter: 5/8 in.
Ground Strap Quantity: One
NGK Part Number: R5672A-8
Quantity: Sold individually.

info:
Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Non-Resistor, Each


http://store.summitracing.com/partdetail.asp?part=NGK%2D7173&view=1&N=700+

this the one ben is suggesting?

only $2.99 each !!!!
 

Last edited by FELIXY69; Dec 8, 2008 at 01:54 PM.
Old Dec 8, 2008 | 01:58 PM
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tagged for interest!

What is the heat range on the stock spark plugs anyway?!?!
 

Last edited by Wave; Dec 8, 2008 at 02:01 PM.
Old Dec 8, 2008 | 01:59 PM
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yeefit: whats the code for your plugs ?
thx
 
Old Dec 8, 2008 | 02:35 PM
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Originally Posted by FELIXY69
yeefit: whats the code for your plugs ?
thx
I am using the NKG Iridium IX BKR7EIX plugs, NGK part number 2667. but ya, those other plugs are super cheap... but Ben said that they ran better in his car than the Iridium ones did. I just haven't been able to find them but I may try to get them online.

My car runs fine with the Iridium plugs tho, and I made 170whp on a Dynojet at 5.8psi. I've since then increased the boost to 8.5psi and I am not having any issues besides running rich in this cold a$$ weather!
 

Last edited by YeeFit; Dec 8, 2008 at 02:38 PM.
Old Dec 8, 2008 | 10:32 PM
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ngk coppers work great. just need to change them sooner than normal (I usually changed them ever 10-15k miles) R5672A-8 and bkr7e-11 work well. the R5672A-8 are two or three steps colder. a little much if you ask me??? you can also find them for ~$1.99 a plug at most checker's, o'rileys, shucks, ect...
 
Old Dec 9, 2008 | 07:03 AM
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Originally Posted by YeeFit
I am using the NKG Iridium IX BKR7EIX plugs, NGK part number 2667. but ya, those other plugs are super cheap... but Ben said that they ran better in his car than the Iridium ones did. I just haven't been able to find them but I may try to get them online.

My car runs fine with the Iridium plugs tho, and I made 170whp on a Dynojet at 5.8psi. I've since then increased the boost to 8.5psi and I am not having any issues besides running rich in this cold a$$ weather!
are you running the 11 heat range ? bkr7e-11 ???
 
Old Dec 9, 2008 | 07:04 AM
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Originally Posted by YeeFit
I am using the NKG Iridium IX BKR7EIX plugs, NGK part number 2667. but ya, those other plugs are super cheap... but Ben said that they ran better in his car than the Iridium ones did. I just haven't been able to find them but I may try to get them online.

My car runs fine with the Iridium plugs tho, and I made 170whp on a Dynojet at 5.8psi. I've since then increased the boost to 8.5psi and I am not having any issues besides running rich in this cold a$$ weather!
eBay Motors: 4 New NGK IRIDIUM IX BKR7EIX-11 Spark Plugs 6988 (item 170279555024 end time Dec-15-08 19:33:07 PST)

this is the one u are running right ?
same heat range ?
 
Old Dec 9, 2008 | 10:54 AM
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Originally Posted by FELIXY69
are you running the 11 heat range ? bkr7e-11 ???
I don't think the heat range is 11. I think it is 7. The part number of the 11s is 6988 and the ones I am running are 2667.

I could be wrong tho, that is just what it showed on my reciept.. I couldn't find the actual box for my plugs. All my reciept said was QTY 1 - NGK Iridium 2667 - for SR20DET... but the shop I bought it from could be wrong as they aren't as organized as one would like.

From what I could gather, the 2667s are similar to the stock RSX Type-S plugs, as my friend with a boosted RSX is using the 2668s which is one step colder that what I have.

What is the stock heat range? 6? I know the Denso heat range on the stock Fit is 20, and the RSX is 22. So one would assume that Denso 20 = NGK 6, and Denso 22 = NGK 7?
 

Last edited by YeeFit; Dec 9, 2008 at 11:02 AM.
Old Dec 9, 2008 | 10:01 PM
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7 is the heat range. the -11 stands for the gapping of the plug. there pre gapped to .032 I believe. and I have no clue on the denso heat ranges. but yeah Id assume its 6 or 5 stock.

edit: checked denso's cross reference chart. 22 is 7 in ngk and 20 is 6 in ngk.
 

Last edited by underdog; Dec 9, 2008 at 10:04 PM.
Old Dec 16, 2008 | 04:19 PM
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Originally Posted by YeeFit
I don't think the heat range is 11. I think it is 7. The part number of the 11s is 6988 and the ones I am running are 2667.

I could be wrong tho, that is just what it showed on my reciept.. I couldn't find the actual box for my plugs. All my reciept said was QTY 1 - NGK Iridium 2667 - for SR20DET... but the shop I bought it from could be wrong as they aren't as organized as one would like.

From what I could gather, the 2667s are similar to the stock RSX Type-S plugs, as my friend with a boosted RSX is using the 2668s which is one step colder that what I have.

What is the stock heat range? 6? I know the Denso heat range on the stock Fit is 20, and the RSX is 22. So one would assume that Denso 20 = NGK 6, and Denso 22 = NGK 7?


eBay Motors: 10 New NGK IRIDIUM IX BKR7EIX Spark Plugs 2667 (item 170262711288 end time Jan-14-09 00:29:46 PST)=

this the correct one then??
 
Old Dec 16, 2008 | 04:30 PM
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Old Dec 16, 2008 | 05:21 PM
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Yup, that is what I am running...
 
Old Dec 16, 2008 | 10:03 PM
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and if you don't want to pay for iridium prices. you can just knock off the ix on the part number and get plain coppers. bkr7e-11 ngk part number 1283. personally I feel iridium is a waste of money on a turbo car.
 
Old Dec 16, 2008 | 10:25 PM
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This is a great thread! I went to autozone after I installed my turbo and asked them for the stock plugs in one colder heat range. They looked at me like I was a retarded elf on stilts wearing a g-string.

Personally, I'm gonna get the Iridiums. Turbo or no, there's no way I'm changing spark plugs every 10,000 miles. Call me lazy, but I'll pay for the better technology.
 
Old Dec 17, 2008 | 07:16 AM
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how about Pulstar Pulse plugs...anyone running those ?>
 
Old Dec 17, 2008 | 04:30 PM
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Originally Posted by FELIXY69
how about Pulstar Pulse plugs...anyone running those ?>
no usefull info here, but why add another variable for failure to the mix? i'd go tried and true and run more boost to compensate for more power if thats what your going for.
 
Old Jan 24, 2009 | 06:26 PM
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Originally Posted by underdog
no usefull info here, but why add another variable for failure to the mix? i'd go tried and true and run more boost to compensate for more power if thats what your going for.
going by your logic might as well go carburetor
 
Old Jan 25, 2009 | 11:29 PM
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Finally got a set of the NGK V-Power Racing plugs.. the cheap copper ones.

Gonna throw them in soon and will let you guys know if I can see any difference between the Iridium IX plugs and the V-Power Racing ones.
 



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