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Old 03-09-2007, 06:13 PM   #1
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Default 2 step colder spark plugs ??

I'm going to be ordering NGK 2 step colder copper plugs and wires and am wondering what the part # for this is? I know you just change the last 2 numbers ... but what is our part number for the stock ones?
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Old 03-09-2007, 06:43 PM   #2
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Why?
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Old 03-09-2007, 06:57 PM   #3
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BKR6E is stock. Or close enough, anyway.

BKR7E is a common turbo plug.

There is no BKR8E. You're into race plugs at that point.
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Old 03-09-2007, 07:47 PM   #4
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Quote:
Originally Posted by Joe Perez View Post
BKR6E is stock. Or close enough, anyway.

BKR7E is a common turbo plug.

There is no BKR8E. You're into race plugs at that point.
Sounds good. Thanks
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Old 03-09-2007, 07:49 PM   #5
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I'm looking for race plugs basically.
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Old 03-09-2007, 08:13 PM   #6
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Unless you're actually circle-track racing the car, there is such a thing as too cold a plug. And as an FYI, proper NGK "race" plugs are about $30 each.

A little searching did turn up one cross-reference that has the right dimensions- the IFR8H-11 (stock #5068). It's an irridium "street" plug, 14mm x 19mm, 5/8" hex, gasket seat, resistor, etc. They're listed at a mere $12 each.

Let us know how they work out. I'm curious about this one myself.
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Old 03-09-2007, 08:35 PM   #7
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hows that one compare to the IK22 / IK20?
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Old 03-09-2007, 08:43 PM   #8
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Quote:
Originally Posted by Joe Perez View Post
Unless you're actually circle-track racing the car, there is such a thing as too cold a plug. And as an FYI, proper NGK "race" plugs are about $30 each.

A little searching did turn up one cross-reference that has the right dimensions- the IFR8H-11 (stock #5068). It's an irridium "street" plug, 14mm x 19mm, 5/8" hex, gasket seat, resistor, etc. They're listed at a mere $12 each.

Let us know how they work out. I'm curious about this one myself.
Looks to be a honda?
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Old 03-09-2007, 10:36 PM   #9
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Quote:
Originally Posted by Joe Perez View Post
BKR6E is stock. Or close enough, anyway.

BKR7E is a common turbo plug.

There is no BKR8E. You're into race plugs at that point.

BKR5E is stock on the 1.8s, so two steps would be the BKR7Es.

becareful, too cold and they'll fowl up right away, since they won't be able to burn off the carbon.
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Old 03-09-2007, 10:53 PM   #10
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I don't remember which ones but I'm pretty sure I have the 7's, Iridium ones in my car. Has been running fine for 10k+ boosted miles
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Old 03-10-2007, 01:59 AM   #11
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Quote:
Originally Posted by PaKMaN View Post
Looks to be a honda?
Spark plugs are spark plugs. No such thing as "Honda plugs" vs "Mazda plugs" per se.

There's a only few basic combinations of thread diameter, thread length, hex size, seat type, etc. So any one particular plug is gonna fit dozens of different vehicles.

It's like saying I run "Honda wheels". No, I run 15x7 wheels with a 4 bolt 100mm pattern and +41 offset. That they happen to also fit just about every vehicle Honda has ever made (as well as a bunch of Toyotas, Nissans, etc) isn't terribly important.

Quote:
Originally Posted by Braineack View Post
BKR5E is stock on the 1.8s, so two steps would be the BKR7Es.
My bad, I forgot we started allowing their kind on this board. (just kidding, everyone)

Actually, isn't the 5E also standard on auto 1.6s? Not sure I understand that one fully...

I think as an experiment I may buy one of the IFR8s and stick it in my engine for a while- see how it compares to the BKR7Es after a few hundred miles. Some side-by-side photos may help illustrate this for folks.
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Old 03-10-2007, 04:40 PM   #12
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Quote:
Originally Posted by Joe Perez View Post
Spark plugs are spark plugs. No such thing as "Honda plugs" vs "Mazda plugs" per se.

There's a only few basic combinations of thread diameter, thread length, hex size, seat type, etc. So any one particular plug is gonna fit dozens of different vehicles.

It's like saying I run "Honda wheels". No, I run 15x7 wheels with a 4 bolt 100mm pattern and +41 offset. That they happen to also fit just about every vehicle Honda has ever made (as well as a bunch of Toyotas, Nissans, etc) isn't terribly important.
I just looking that part # on ebay it appears they are used in hondas as well, thats why I was asking to make sure I was looking at the right one. But you're right.. plugs are plugs Thanks again.
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Old 03-10-2007, 05:08 PM   #13
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For some reason I also thought the 5 range was stock for our cars.

I had planned on running BKR7Es.
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Old 03-11-2007, 12:48 PM   #14
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Quote:
Originally Posted by Splitime View Post
For some reason I also thought the 5 range was stock for our cars.
BKR6E-11 is standard for 1.6, but Braineack is right- the 5 is spec'd for 1.8s. And I was wrong about the 1.6 Autos- they got the same heat range but the FSM lists a Nippondenso plug for them as opposed to NGK. Damn odd.
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