Stage 2 Spark Plugs and Gap

M8fam · 07-21-2023, 05:37 PM

What up,

Just bought a new set of NGK 94201 spark plugs. For anyone running a Stage 2 or higher tunes on a stock turbo…. what’s the preferred gap? Anyone experimented with 0.030, 0.028, 0.22 etc?

kamilbaran · 07-21-2023, 09:44 PM

for stage 2+ on my 240i i gapped .023, .022 i saw recommended i did an extra .001 for the increased positive initial start up and idle. i’d recommend atleast .024 for stage 2.

Edit: Though i did run over 1k miles on stage 2 on the stock gap and stock plugs with 0 issues from WOT runs to initial start up.

Jcoop901 · 07-22-2023, 06:48 AM

My 240 is STG II+.. run the factory set gap. No reason to change it with a stock turbo.

M8fam · 07-22-2023, 09:53 AM

Quote:

Originally Posted by Jcoop901

My 240 is STG II+.. run the factory set gap. No reason to change it with a stock turbo.

I’m leaning towards stock as well from I’ve been reading.

n55david · 07-22-2023, 04:10 PM

Stock 100% the oem coil setup is better than lots of aftermarket setups for other cars. You want the widest gap you can get without issue for better Combustion anyway.. tightening it only if you are having issues with the spark being blown out.

Dom147 · 07-25-2023, 07:35 AM

This video has really good info on the subject

07-21-2023, 05:37 PM	#1
M8fam Enlisted Member 9 Rep 41 Posts Drives: 2021 M240ix Join Date: Oct 2020 Location: Colorado iTrader: (0) Garage List 2021 BMW M240i xDrive [10.00]	Stage 2 Spark Plugs and Gap What up, Just bought a new set of NGK 94201 spark plugs. For anyone running a Stage 2 or higher tunes on a stock turbo…. what’s the preferred gap? Anyone experimented with 0.030, 0.028, 0.22 etc?
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07-21-2023, 09:44 PM	#2
kamilbaran Private First Class 138 Rep 182 Posts Drives: '18 Yas Marina M3, '17 M240i Join Date: May 2022 Location: Chicago iTrader: (0)	for stage 2+ on my 240i i gapped .023, .022 i saw recommended i did an extra .001 for the increased positive initial start up and idle. i’d recommend atleast .024 for stage 2. Edit: Though i did run over 1k miles on stage 2 on the stock gap and stock plugs with 0 issues from WOT runs to initial start up.
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07-22-2023, 06:48 AM	#3
Jcoop901 Southern Fried 139 Rep 140 Posts Drives: BMW M240i Join Date: May 2020 Location: TN iTrader: (0) Garage List 2017 BMW M240i [9.00]	My 240 is STG II+.. run the factory set gap. No reason to change it with a stock turbo.
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07-22-2023, 04:10 PM	#5
n55david Check out my Youtube @n55david! 1296 Rep 3,533 Posts Drives: 2017 m240i, 2015 X3 x35i Join Date: Aug 2018 Location: Michigan USA iTrader: (0) Garage List 2017 m240i xDrive [0.00] 2015 X3 x35i [0.00] 2015 335i xdrive [0.00]	Stock 100% the oem coil setup is better than lots of aftermarket setups for other cars. You want the widest gap you can get without issue for better Combustion anyway.. tightening it only if you are having issues with the spark being blown out. __________________ 2017 m240i xDrive 10.99@122.86mph bootmod3 stage 2+ ots 2015 335i xDrive 10.95@124.99mph w/bm3 - SOLD 2015 X3 x35i pwg 12.96 catless w/bm3 stage 2 93 ots IG: @n55david For pics and updates! Youtube: @ n55david For videos or Racing etc
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07-25-2023, 07:35 AM	#6
Dom147 Second Lieutenant 91 Rep 249 Posts Drives: 2014 BMW 228i, 2017 BMW M240i Join Date: Apr 2021 Location: Northern Virginia iTrader: (1) Garage List 2017 BMW M240i [0.00]	This video has really good info on the subject
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