Got_boost02
Member
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- Titanium MSP
yeah, i just took the autolites back cause i dont think they are even close to the ngk's after some further research. also having trouble finding the ngk at the local stores???????????/
MS MSP said:I had trouble too as these plugs apparently aren't stock issue on any cars. I read somewhere that one of the plug types were stock for a motorcycle?
Anyways, read the NGK extended Reach Plug thread in the FI section posted by Linux Racer. All the part #'s are there.
For example, the BKR7E's are NGK part #6097.
I also have these plugs which are the same size and 2 heat ranges colder from our stock plugs. I have them gapped at .030, and they run smoother than the BRK7E which everyone was recommending when I first joined the forums. Any auto parts store will be able to get them under the NGK PN 2975, and they are only a few bucks a piece. It seems like a no-brainer to me that these would be the correct plugs to run at higher boost considering the only difference from the stock plugs is heat range (copper).TampaBlackMSP said:So far I'm very pleased with my new NGK's - I had the BK... but since changed to the
ZFR7F-11, part #2975, .30 gap (I had to pull out my notes for exact name and part number - don't keep up with that crap) - I'm also at 10+ psi w/other 'stuff'so I'm not exactly stock.
Anyway, the new extended reach ones make the car definitely feel smoother than the BK's - thanks Discreet, Linux and everyone else offering input regarding this - (2thumbs)
On sparkplugs.com it says the gap is 14MM for the ZFR7F-11 plugs. What does the equal? .030?jurgs01 said:I also have these plugs which are the same size and 2 heat ranges colder from our stock plugs. I have them gapped at .030, and they run smoother than the BRK7E which everyone was recommending when I first joined the forums. Any auto parts store will be able to get them under the NGK PN 2975, and they are only a few bucks a piece. It seems like a no-brainer to me that these would be the correct plugs to run at higher boost considering the only difference from the stock plugs is heat range (copper).
Actually, or stock plugs are ZFR6F, so your new ones are 1 heat range colder, not 2.jurgs01 said:I also have these plugs which are the same size and 2 heat ranges colder from our stock plugs.
MS MSP said:Actually, or stock plugs are ZFR6F, so your new ones are 1 heat range colder, not 2.
Yes. I have the Denso equivalent. I have the KJ22CR-L8 which are the equivalent to the ZFR7F-11. They are pregapped to .8mm which is about .032" I believe. I got them at www.sparkplugs.com. Paid a little more since I had to pay for shipping but, oh well.MS MSP said:Supposedly there are Denso's that have the same specs as the ZFRF's that come with the proper gap for our cars.
Yep... I just put mine on yesterday. Car definately feels smoother... now on to the mbc @ 10psi! Probably do that today.TampaBlackMSP said:So far I'm very pleased with my new NGK's - I had the BK... but since changed to the
ZFR7F-11, part #2975, .30 gap (I had to pull out my notes for exact name and part number - don't keep up with that crap) - I'm also at 10+ psi w/other 'stuff'so I'm not exactly stock.
Anyway, the new extended reach ones make the car definitely feel smoother than the BK's - thanks Discreet, Linux and everyone else offering input regarding this - (2thumbs)
What about irridium ones !? Will they be OK (stock and higher boost) and last longer ?MS MSP said:Copper plugs will wear faster than the stock platinum's., but copper is better for F/I.
It depends which plugs you run.
So, you will have to change the coppers more often, but they are cheaper than the platinums.