NGK 97596 Idle Issues

rborane · 02-08-2020, 09:47 AM

Quote:

Originally Posted by Izzmeister

Awesome!
So on the stock plugs did you have to gap them or they came pre-gapped? Mine should be here today.

Where did you purchase stock plugs from? Did you get the bmw branded or Bosch branded ones (which I believe cost less)?

Izzmeister · 02-08-2020, 10:06 AM

Quote:

Originally Posted by rborane

Quote:

Originally Posted by Izzmeister

Awesome!
So on the stock plugs did you have to gap them or they came pre-gapped? Mine should be here today.

Where did you purchase stock plugs from? Did you get the bmw branded or Bosch branded ones (which I believe cost less)?

M branded from local dealer, just got them.

Trevorstein · 02-08-2020, 11:13 AM

Good sources:

Hmm, it won't let me write "Mod..." (synonym for "deals")??

* "http://www.**********s.com/BMW-Bosch-Plat-Spark-Six-Set-RB-ZMR5TPP330.htm"

* "https://www.fcpeuro.com/products/bmw-zr5tpp330a-spark-plug-bosch-0242145541"

Decent price!

Confirm Shipping costs.

Cheers!

Izzmeister · 02-10-2020, 09:32 PM

Quote:

Originally Posted by Trevorstein

Good sources:

Hmm, it won't let me write "Mod..." (synonym for "deals")??

* "http://www.**********s.com/BMW-Bosch-Plat-Spark-Six-Set-RB-ZMR5TPP330.htm"

* "https://www.fcpeuro.com/products/bmw-zr5tpp330a-spark-plug-bosch-0242145541"

Decent price!

Confirm Shipping costs.

Cheers!

Changed the plugs back to oem which came gapped at .28. They feel less responsive and the engine is not as loud. The NGK plugs really wake the car up. The miss at idle is still there just very very faint and not as constant. I think the NGKs just exaggerate the little miss alot more. I'm really tempted to gap the NGKs to .28 and see how they run. They make the car feel like a diff animal. Can I run the NGKs at .28? Have any of you guys ran them at that gap? Hard to believe that plugs make this engine louder. I have catless downpipes and a catted MPE exhaust from a zcp.

rborane · 02-10-2020, 09:46 PM

My car has 52k miles, running OEM plugs that were changed at 45k and I have never felt a hiccup or miss. It idles perfectly. I have catless Downpipes and stage 1 BM3 91 octane. Maybe it is something else?

andrei.m4 · 02-11-2020, 03:54 AM

I dont feel power or sound differences from ngk 0.022 gap back to stock bosch 0.028gap. bm3 stage2 agg 93oct.

Trevorstein · 02-11-2020, 02:53 PM

Quote:

Originally Posted by Izzmeister

Changed the plugs back to oem which came gapped at .28. They feel less responsive and the engine is not as loud. The NGK plugs really wake the car up. The miss at idle is still there just very very faint and not as constant. I think the NGKs just exaggerate the little miss alot more. I'm really tempted to gap the NGKs to .28 and see how they run. They make the car feel like a diff animal. Can I run the NGKs at .28? Have any of you guys ran them at that gap? Hard to believe that plugs make this engine louder. I have catless downpipes and a catted MPE exhaust from a zcp.

Where do you get .028 from? I've looked all over an couldn't find an official OEM gap Spec.

Or, is that what yours measured out to be - out of the box?

The only reference I've found was .032 for OEM.

Izzmeister · 02-11-2020, 03:39 PM

Quote:

Originally Posted by Trevorstein

Quote:

Originally Posted by Izzmeister

Changed the plugs back to oem which came gapped at .28. They feel less responsive and the engine is not as loud. The NGK plugs really wake the car up. The miss at idle is still there just very very faint and not as constant. I think the NGKs just exaggerate the little miss alot more. I'm really tempted to gap the NGKs to .28 and see how they run. They make the car feel like a diff animal. Can I run the NGKs at .28? Have any of you guys ran them at that gap? Hard to believe that plugs make this engine louder. I have catless downpipes and a catted MPE exhaust from a zcp.

Where do you get .028 from? I've looked all over an couldn't find an official OEM gap Spec.

Or, is that what yours measured out to be - out of the box?

The only reference I've found was .032 for OEM.

Measured my old oem plugs which I removed from the car. The new oem plugs I bought and the old ones were .028

mark5092 · 02-11-2020, 04:59 PM

When I purchased a set of new OEM plugs from BMW dealer for the 2015 M4 I had at the time, all six were at .028 out of box. This was Oct 2016 and car had about 5000mi. I gapped them to .022 per Terry at BMS to use with JB4 map 2. Noticeable difference in acceleration over plugs that came out of the car all at .028. No idle issues. OEM plugs from dealer are just fine gapped at .022. Will be going this route again on our 2018 M3 ZCP. No NGK’s for me!

Izzmeister · 02-11-2020, 05:04 PM

Quote:

Originally Posted by mark5092

When I purchased a set of new OEM plugs from BMW dealer for the 2015 M4 I had at the time, all six were at .028 out of box. This was Oct 2016 and car had about 5000mi. I gapped them to .022 per Terry at BMS to use with JB4 map 2. Noticeable difference in acceleration over plugs that came out of the car all at .028. No idle issues. OEM plugs from dealer are just fine gapped at .022. Will be going this route again on our 2018 M3 ZCP. No NGK's for me!

Quote:

Originally Posted by mark5092

When I purchased a set of new OEM plugs from BMW dealer for the 2015 M4 I had at the time, all six were at .028 out of box. This was Oct 2016 and car had about 5000mi. I gapped them to .022 per Terry at BMS to use with JB4 map 2. Noticeable difference in acceleration over plugs that came out of the car all at .028. No idle issues. OEM plugs from dealer are just fine gapped at .022. Will be going this route again on our 2018 M3 ZCP. No NGK's for me!

Never thought of happing oem plugs at .022, I miss the responsiveness of the NGKs.

mark5092 · 02-11-2020, 05:34 PM

Quote:

Originally Posted by Izzmeister

Never thought of happing oem plugs at .022, I miss the responsiveness of the NGKs.

You will be very satisfied with OEM at .022!

Trevorstein · 02-19-2020, 01:16 PM

F.Y.I:

Ando @BMS indicated to me that the NGK's need to be gapped @0.020 in order for these to work properly in our cars.

Cheers!

Trevorstein · 03-28-2020, 08:59 PM

Quote:

Originally Posted by Trevorstein

Hey,

>>NGK 97506 SILZKBR8D8S<<

Stock M4 ZCP - Installed, idled, Tracked, Confirmed!!!

Gapped @

* 0.020 inches / .51 mm

Excellent!

Cheers!

rborane · 03-28-2020, 09:31 PM

Any update to this Izzmeister ? You still running the oem plugs? I am deciding whether to go NGK or stick with OEM but don't want a jolt at idle...

Izzmeister · 03-28-2020, 10:32 PM

Quote:

Originally Posted by rborane

Any update to this Izzmeister ? You still running the oem plugs? I am deciding whether to go NGK or stick with OEM but don't want a jolt at idle...

Quote:

Originally Posted by rborane

Any update to this Izzmeister ? You still running the oem plugs? I am deciding whether to go NGK or stick with OEM but don't want a jolt at idle...

Haven't changes them back to the NGK. Left the stock plugs in. As is the car has no traction with 295 ps4 in the rear. I don't want to go back to NGK and then OEM if I get that idle issue again. Sticking with OEM at .028 as they came out of the box. It's just plugs, either way if the boost was so high that I needed colder plugs and less gap the car would break up under full boost. I think the NGKs are more for big boost cars like pure turbos and or e85...my 2 cents. Haven't had any issues whatsoever with the OEM bosch plugs at .028

Ejones4541 · 03-28-2020, 11:18 PM

https://burgertuning.com/products/ng...nt=32079075982

02-08-2020, 11:13 AM	#47
Trevorstein Lieutenant 150 Rep 511 Posts Drives: Trabant Join Date: May 2019 Location: Galifrey iTrader: (0)	Good sources: Hmm, it won't let me write "Mod..." (synonym for "deals")?? * "http://www.*********s.com/BMW-Bosch-Plat-Spark-Six-Set-RB-ZMR5TPP330.htm" "https://www.fcpeuro.com/products/bmw-zr5tpp330a-spark-plug-bosch-0242145541" Decent price! Confirm Shipping costs. Cheers! __________________ ///M Joy
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02-10-2020, 09:46 PM	#49
rborane Captain 241 Rep 792 Posts Drives: BMW M4 Join Date: Mar 2013 Location: AZ iTrader: (3)	My car has 52k miles, running OEM plugs that were changed at 45k and I have never felt a hiccup or miss. It idles perfectly. I have catless Downpipes and stage 1 BM3 91 octane. Maybe it is something else?
	Appreciate 0 Quote

02-11-2020, 03:54 AM	#50
andrei.m4 Second Lieutenant 113 Rep 291 Posts Drives: bmw f82 Join Date: Mar 2019 Location: Romania iTrader: (0)	I dont feel power or sound differences from ngk 0.022 gap back to stock bosch 0.028gap. bm3 stage2 agg 93oct.
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02-11-2020, 04:59 PM	#53
mark5092 Lieutenant 192 Rep 443 Posts Drives: 2019 M5C, 18 M3 ZCP, 20 Raptor Join Date: Sep 2015 Location: USA iTrader: (0)	When I purchased a set of new OEM plugs from BMW dealer for the 2015 M4 I had at the time, all six were at .028 out of box. This was Oct 2016 and car had about 5000mi. I gapped them to .022 per Terry at BMS to use with JB4 map 2. Noticeable difference in acceleration over plugs that came out of the car all at .028. No idle issues. OEM plugs from dealer are just fine gapped at .022. Will be going this route again on our 2018 M3 ZCP. No NGK’s for me!
	Appreciate 0 Quote

02-19-2020, 01:16 PM	#56
Trevorstein Lieutenant 150 Rep 511 Posts Drives: Trabant Join Date: May 2019 Location: Galifrey iTrader: (0)	F.Y.I: Ando @BMS indicated to me that the NGK's need to be gapped @0.020 in order for these to work properly in our cars. Cheers! __________________ ///M Joy Last edited by Trevorstein; 02-25-2020 at 01:09 PM..
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03-28-2020, 09:31 PM	#58
rborane Captain 241 Rep 792 Posts Drives: BMW M4 Join Date: Mar 2013 Location: AZ iTrader: (3)	Any update to this Izzmeister ? You still running the oem plugs? I am deciding whether to go NGK or stick with OEM but don't want a jolt at idle...
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03-28-2020, 11:18 PM	#60
Ejones4541 Second Lieutenant 131 Rep 228 Posts Drives: 2020 M4 ZCP Join Date: Mar 2009 Location: Charlotte, NC iTrader: (0)	https://burgertuning.com/products/ng...nt=32079075982
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