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2deg colder than stock

Old 07-08-2009, 12:50 PM
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Default 2deg colder than stock

Will going 2deg colder change the performance of my car without the nitrous?
I have not used the nitrous yet because i have not changed my plugs yet. I'm just curious.

Last edited by Fun-Formula98; 07-08-2009 at 12:52 PM. Reason: more info
Old 07-08-2009, 01:13 PM
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well just to let you know, from my experience, my stock plugs were gapped at .040, i just changed them sunday in favor of ngk BR7EF gapped at .035. now, it could be just me, but SOMETHING is slightly different. i dont know what it is. but something feels different. i dont know that i would say the performance is less due to the coldness of the plug or the smaller gap. but something is slightly different. sorry man wish i could help ya more
Old 07-08-2009, 01:41 PM
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It shouldn't hurt the N/A performance much at all if any....i mean you might be talking a few HP decrease.

-Chris
Old 07-08-2009, 01:46 PM
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x2 ^ you will be fine
Old 07-08-2009, 02:19 PM
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BR7EF is a solid plug for a street car on a small shot. I just put a set in my C5 for the 150hp hit.
Old 07-08-2009, 02:23 PM
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if you go with br7ef, dont get the ones with the "P" in the code, those are projected, and you dont want that
Old 07-08-2009, 04:43 PM
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I got the BR7FE plugs and im going to run a 150 shot.
So thats good to know! Thanks guys
Old 07-08-2009, 04:57 PM
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It will foul faster, maybe won't idle as nice depending on your tune.

for your reference NGK BR7EF part # 3346 is what you'll be looking for. that is a 2 step colder non-projected tip plug. I dont believe there is a projected tip NGK plug in that heat range except for the iridium one, so you won't have any problems avoiding that.
Old 07-08-2009, 05:04 PM
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nick, im pretty sure that there is two br7ef, one is like bpr7ef or something like that, and it is projected. i think
Old 07-08-2009, 05:52 PM
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Originally Posted by Mike@HSW
It will foul faster, maybe won't idle as nice depending on your tune.

for your reference NGK BR7EF part # 3346 is what you'll be looking for. that is a 2 step colder non-projected tip plug. I dont believe there is a projected tip NGK plug in that heat range except for the iridium one, so you won't have any problems avoiding that.
Thanks man. I got the part # off your site,(thanks) but i need them by tomorrow so i had to go to 3 different O'Rielly's and pay $3 bucks a plug! BUT, I did buy your Interface!
Ill let you all know how it turns out on friday!
I hope i dont go out with a "bang"!
Old 07-08-2009, 07:14 PM
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Originally Posted by Fun-Formula98
Thanks man. I got the part # off your site,(thanks) but i need them by tomorrow so i had to go to 3 different O'Rielly's and pay $3 bucks a plug! BUT, I did buy your Interface!
Ill let you all know how it turns out on friday!
I hope i dont go out with a "bang"!
That's usually the case, they are hard to come by at most stores. Let me know if you have any questions or anything.
Old 07-08-2009, 07:22 PM
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Originally Posted by JAX04
nick, im pretty sure that there is two br7ef, one is like bpr7ef or something like that, and it is projected. i think
you are right i just came across it, BP7EFS, its not a v-power plug. Lol i actually bought a case of these the other week by accident, should have remember. So like you said, stay away from that plug.
Old 07-09-2009, 05:46 AM
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I have the BR7EF plugs. The idle IS worse. But nothing I can't live with. I'm not getting any fouling after running on the street in stop and go traffic for last few months.
Old 07-09-2009, 08:03 AM
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Originally Posted by 94FBIRD
I have the BR7EF plugs. The idle IS worse. But nothing I can't live with. I'm not getting any fouling after running on the street in stop and go traffic for last few months.
this is weird to me, i have actually heard a couple people say that it idles worse, but ****, my car feels like it idles before i changed the plugs, smooth as as can be. i havent noticed any ruff idle. good plug, sprayed the 100 shot las night for the first time. **** is like cocaine!!! im ready for more. lmao
Old 07-09-2009, 09:53 AM
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Originally Posted by JAX04
nick, im pretty sure that there is two br7ef, one is like bpr7ef or something like that, and it is projected. i think
I'm Nick. That's Mike.
Old 07-09-2009, 09:58 AM
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oops, just so used to dealing with you, my bad.
Old 07-09-2009, 02:00 PM
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Originally Posted by 94FBIRD
I have the BR7EF plugs. The idle IS worse. But nothing I can't live with. I'm not getting any fouling after running on the street in stop and go traffic for last few months.
With te colder plug put some more timming in it at idle we use about 8 more degrees bellow 1500 rpm and lean it out a good bit .It will help keep them clean.
Old 07-09-2009, 02:05 PM
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so, not trying to hijack, is there any negative side effects to running these plugs, i just put them in, and they seem to work good. should i be leary of the long run with these, or just plan on changeing them every other oil change
Old 07-09-2009, 02:10 PM
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With the right tune they will be fine. we run the 8's on the motor.
Old 07-09-2009, 02:11 PM
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i have NO tune yet, oops. just sprayin the 100 on the stock tune.

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