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2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning spark plugs

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      09-07-2016, 04:07 PM   #1
Shayan55
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spark plugs

what kind of spark plug is everyone running? or are there any recommended ones? i have a bms intake DP and a jb4
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      09-07-2016, 04:39 PM   #2
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Quote:
Originally Posted by f22_shayan View Post
what kind of spark plug is everyone running? or are there any recommended ones? i have a bms intake DP and a jb4
I have the BMW S55 engine plugs gapped to .022mm. Flash tune, DP, Intake, and run ~15psi.
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      09-08-2016, 06:37 PM   #3
Bee Pee
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For n55 options are

1. Use stock plugs

2. Use same plugs as m2/3/4

3. N2x 4 cyl plugs are colder than 6cyl n55 plugs - latest NORMAL N20 plug is the NGK SILZKBR8D8S (BMW part nr 12120039664).

NGK SILZKBR9F8S - (BMW part nr 12120042724) - this plug is listed for all N20's that are "flex fuel" compatible. If this NGK number is correct, it would indicate that this plug is ONE step colder than the stock N20/S55 plug and TWO steps colder than the stock N55 plug.

http://www.realoem.com/bmw/enUS/part...23+12120042724
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      09-09-2016, 10:30 PM   #4
Shayan55
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okay, thank you guys
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      09-10-2016, 04:30 PM   #5
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Quote:
Originally Posted by crbalch
Quote:
Originally Posted by f22_shayan View Post
what kind of spark plug is everyone running? or are there any recommended ones? i have a bms intake DP and a jb4
I have the BMW S55 engine plugs gapped to .022mm. Flash tune, DP, Intake, and run ~15psi.
+1 same here my car seems to like them so far.
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