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      05-29-2017, 07:51 PM   #67
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Quote:
Originally Posted by EatMoreLobsters View Post
I haven't done anything to the stock plugs, but i don't think they've been changed in a while
Sorry, misread that you only ordered new plugs, thought you were having issues with the new plugs.
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      10-17-2017, 02:08 PM   #68
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Quote:
Originally Posted by EatMoreLobsters View Post
I just ordered the NGK 97506 2-Step Colder Spark Plug from burger, i'm having misfires going into 4/5/6 under full throttle. At first I thought it may be a transmission problem but then i remembered this happening in my last car, same feeling. Hopefully this is the fix.

http://www.burgertuning.com/N54_BMW_...t_adapter.html
How they are? Any Updates?


Quote:
Originally Posted by shivaswrath View Post
Trying the N20 plus today.

M2/3/4 plugs were really bad on my N55 gapped between .020-.024, so gave up. Maybe plugs were bad, but all cyclinders misfired under boost. And the plugs were purple/red, clearly I need colder.
How they are? Any Updates?
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      10-19-2017, 07:12 PM   #69
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Did you put the new plugs in yet? I'm about to be FBO with BM3 tune and am coming up on 60k on the odometer. Thinking of going the 1 step colder route (.i.e NGK 95770 gapped at .022). I wonder though if the stock Bosch plugs would be ok gapped at 0.020-0.022.

Quote:
Originally Posted by EatMoreLobsters View Post
I just ordered the NGK 97506 2-Step Colder Spark Plug from burger, i'm having misfires going into 4/5/6 under full throttle. At first I thought it may be a transmission problem but then i remembered this happening in my last car, same feeling. Hopefully this is the fix.

http://www.burgertuning.com/N54_BMW_...t_adapter.html
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      10-19-2017, 07:32 PM   #70
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Quote:
Originally Posted by JaredG_F30 View Post
Did you put the new plugs in yet? I'm about to be FBO with BM3 tune and am coming up on 60k on the odometer. Thinking of going the 1 step colder route (.i.e NGK 95770 gapped at .022). I wonder though if the stock Bosch plugs would be ok gapped at 0.020-0.022.
After researching this like crazy, i ended up with the 97506's. These are recommended by PTF. I haven't installed them yet but i will be soon. So if you have BM3 then these are what you will want.
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      10-20-2017, 10:11 AM   #71
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Quote:
Originally Posted by JaredG_F30 View Post
Did you put the new plugs in yet? I'm about to be FBO with BM3 tune and am coming up on 60k on the odometer. Thinking of going the 1 step colder route (.i.e NGK 95770 gapped at .022). I wonder though if the stock Bosch plugs would be ok gapped at 0.020-0.022.
I need to change mine asap and I would rather go with NGK than gapping the oem Bosch.


Quote:
Originally Posted by Insane435 View Post
After researching this like crazy, i ended up with the 97506's. These are recommended by PTF. I haven't installed them yet but i will be soon. So if you have BM3 then these are what you will want.
I think that's a good idea. Per BMS website those NGK 97506 are the standard on n20 and s55 and gapped to .22 instead of .20 for us fbo is the way to go as it will be one step colder.
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      10-20-2017, 11:30 AM   #72
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Cool!! Please provide a review once you have the new plugs installed.

Quote:
Originally Posted by yoandry View Post
I need to change mine asap and I would rather go with NGK than gapping the oem Bosch.




I think that's a good idea. Per BMS website those NGK 97506 are the standard on n20 and s55 and gapped to .22 instead of .20 for us fbo is the way to go as it will be one step colder.
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      10-22-2017, 09:50 AM   #73
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Quote:
Originally Posted by JaredG_F30 View Post
Did you put the new plugs in yet? I'm about to be FBO with BM3 tune and am coming up on 60k on the odometer. Thinking of going the 1 step colder route (.i.e NGK 95770 gapped at .022). I wonder though if the stock Bosch plugs would be ok gapped at 0.020-0.022.

Quote:
Originally Posted by EatMoreLobsters View Post
I just ordered the NGK 97506 2-Step Colder Spark Plug from burger, i'm having misfires going into 4/5/6 under full throttle. At first I thought it may be a transmission problem but then i remembered this happening in my last car, same feeling. Hopefully this is the fix.

http://www.burgertuning.com/N54_BMW_...t_adapter.html
Yes, I've had them in for 10k miles running perfectly
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      10-23-2017, 11:06 AM   #74
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Quote:
Originally Posted by EatMoreLobsters View Post
Yes, I've had them in for 10k miles running perfectly
What gap did you use? .20 or .22
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      10-23-2017, 11:39 AM   #75
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I installed the spark plugs yesterday and have driven at least 50 miles on them. The car seems to run better; its not faster but it's smoother and crisper. Not sure if its because my plugs had ~54k miles on them or if the NGK's are just that much better, but I have no issues with them so far. I am running JB4 Map 5, E30, FBO (stock turbo).

I gapped them at 0.020". Not sure I will ever need to gap them down to .018" since I cant imagine ill be running 25 PSI
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      10-23-2017, 12:11 PM   #76
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Quote:
Originally Posted by Insane435 View Post
I installed the spark plugs yesterday and have driven at least 50 miles on them. The car seems to run better; its not faster but it's smoother and crisper. Not sure if its because my plugs had ~54k miles on them or if the NGK's are just that much better, but I have no issues with them so far. I am running JB4 Map 5, E30, FBO (stock turbo).

I gapped them at 0.020". Not sure I will ever need to gap them down to .018" since I cant imagine ill be running 25 PSI
Nice, do you have the DIY you followed?
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      10-23-2017, 12:44 PM   #77
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Quote:
Originally Posted by Insane435 View Post
I installed the spark plugs yesterday and have driven at least 50 miles on them. The car seems to run better; its not faster but it's smoother and crisper. Not sure if its because my plugs had ~54k miles on them or if the NGK's are just that much better, but I have no issues with them so far. I am running JB4 Map 5, E30, FBO (stock turbo).

I gapped them at 0.020". Not sure I will ever need to gap them down to .018" since I cant imagine ill be running 25 PSI
0.020 is a good number on the gapping!

Mike
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      10-24-2017, 04:16 PM   #78
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OK I just did a shit ton of reading up on this and looking up all the specs and the stock Bosch plugs as well as the NGK 95770 and 97506 and this is what I found (all data from www.sparkplugs.com)

Bosch ZR5TPP33S (OEM plug for F30 N55) https://www.sparkplugs.com/product.aspx?zpid=40028

Shell
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Gap: .028" (0.7mm)

Center Electrode
Material: Platinum
Type: Fine Wire
Size: 0.6mm
Projection: Extended Projection
Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1
Specifications

Torque Specs: Cast Iron: 11-18 lb. ft. Aluminum: 11-15 lb. ft.
Brand: Bosch
Heat Range: 5
Longevity: 80k
Features: Extended Metal Shell

NGK 95770 ILZKBR7B8DG Laser Iridium Plug https://www.ngk.com/product.aspx?zpid=39947

Shell
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Resistor Value: 5K Ohm
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Extended Projection
Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1
Specifications

Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Brand: NGK
Heat Range: 7
Longevity: 80-100k

NGK 97506 SILZKBR8D8S Laser Iridium Spark Plug https://www.sparkplugs.com/product.aspx?zpid=41489

Shell

Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode

Material: Iridium
Type: Fine Wire
Size: 1.0mm
Projection: Extended Projection

Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1

Specifications

Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Brand: NGK
Heat Range: 8
Longevity: 80-100k
Features: Special Gasket

One thing to note about the heat range between Bosch and NGK, they are not equivalent scales, in fact, they are the reverse. The higher number for NGK means colder plug, while the higher number for Bosch means hotter plug. It's confusing I know. A quick google search for spark plug heat range scale gives us a good table to go by (BTW different gaps will not make the plug hotter or colder. It's all about heat transfer and how much of the plug is exposed to the combustion chamber. I would recommend reading the link on sparkplug.com about heat range.) Here is a link to the chart http://matchlessclueless.com/wp-cont...comparison.jpg

Heat range 5 for Bosch is equal to 7 for NGK, thus Bosch ZR5TPP33S and NGK 95770 are the same heat range. NGK 97506 is an 8, thus one step colder than the stock Bosh plug. Pre-gap for the 97506 is 0.031". I'm guessing gapping to 0.020" will be ok but I'm waiting for confirmation on that.
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Last edited by JaredG_F30; 10-24-2017 at 04:23 PM..
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      10-24-2017, 04:25 PM   #79
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I recently purchased the BOSCH ZR5TPP33S plugs for my 14 335i xdrive and have the opportunity to return them. Do you guys think I should? Thinking of going bootmod3 as well.
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      10-24-2017, 04:53 PM   #80
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I just ordered the NGK 97506 (OEM for the N20) and will be gapping them at .020". I'll provide feedback once I get them installed. Evidently, it's better to err on the cold side instead of the hot side for the plug. Too cold of a plug will just foul out while too hot of a plug and cause pre-ignition and engine damage.
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      10-24-2017, 04:55 PM   #81
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Quote:
Originally Posted by JaredG_F30 View Post
OK I just did a shit ton of reading up on this and looking up all the specs and the stock Bosch plugs as well as the NGK 95770 and 97506 and this is what I found (all data from www.sparkplugs.com)

Bosch ZR5TPP33S (OEM plug for F30 N55) https://www.sparkplugs.com/product.aspx?zpid=40028

Shell
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Gap: .028" (0.7mm)

Center Electrode
Material: Platinum
Type: Fine Wire
Size: 0.6mm
Projection: Extended Projection
Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1
Specifications

Torque Specs: Cast Iron: 11-18 lb. ft. Aluminum: 11-15 lb. ft.
Brand: Bosch
Heat Range: 5
Longevity: 80k
Features: Extended Metal Shell

NGK 95770 ILZKBR7B8DG Laser Iridium Plug https://www.ngk.com/product.aspx?zpid=39947

Shell
Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Resistor Value: 5K Ohm
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Extended Projection
Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1
Specifications

Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Brand: NGK
Heat Range: 7
Longevity: 80-100k

NGK 97506 SILZKBR8D8S Laser Iridium Spark Plug https://www.sparkplugs.com/product.aspx?zpid=41489

Shell

Thread Size: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor: Yes
Reach: 26.5mm (1.04")
Hex Size: 14mm Bi-Hex
Terminal Type: Solid
Overall Height: ISO
Gap: .031" (0.8mm)

Center Electrode

Material: Iridium
Type: Fine Wire
Size: 1.0mm
Projection: Extended Projection

Ground Electrode

Material: Platinum
Type: Standard
Shape: Taper Cut
Quantity: 1

Specifications

Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Brand: NGK
Heat Range: 8
Longevity: 80-100k
Features: Special Gasket

One thing to note about the heat range between Bosch and NGK, they are not equivalent scales, in fact, they are the reverse. The higher number for NGK means colder plug, while the higher number for Bosch means hotter plug. It's confusing I know. A quick google search for spark plug heat range scale gives us a good table to go by (BTW different gaps will not make the plug hotter or colder. It's all about heat transfer and how much of the plug is exposed to the combustion chamber. I would recommend reading the link on sparkplug.com about heat range.) Here is a link to the chart http://matchlessclueless.com/wp-cont...comparison.jpg

Heat range 5 for Bosch is equal to 7 for NGK, thus Bosch ZR5TPP33S and NGK 95770 are the same heat range. NGK 97506 is an 8, thus one step colder than the stock Bosh plug. Pre-gap for the 97506 is 0.031". I'm guessing gapping to 0.020" will be ok but I'm waiting for confirmation on that.
You have done a lot of homework. So based on your research is one plug better or going to make a difference? I am in the market for plugs as well as I am at 37K with Jb4 and do run e85. I can't see getting those $17 plugs unless they add an extra 10hp.
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      10-24-2017, 05:05 PM   #82
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Well since Iím due for new plugs (at about 54k on the odo right now) and Iíll be FBO + BM3 stg 2 soon, Iím erring on the side of caution and going one step colder and ordered the NGK 97506. They were $15/plug from BMS which is only a couple dollars more than the stock Bosch plugs at $12/plug.

Quote:
Originally Posted by jgoens View Post
You have done a lot of homework. So based on your research is one plug better or going to make a difference? I am in the market for plugs as well as I am at 37K with Jb4 and do run e85. I can't see getting those $17 plugs unless they add an extra 10hp.
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      10-24-2017, 05:09 PM   #83
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Quote:
Originally Posted by JaredG_F30 View Post
I just ordered the NGK 97506 (OEM for the N20) and will be gapping them at .020". I'll provide feedback once I get them installed. Evidently, it's better to err on the cold side instead of the hot side for the plug. Too cold of a plug will just foul out while too hot of a plug and cause pre-ignition and engine damage.
Those will work great with your setup
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      10-24-2017, 06:48 PM   #84
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Why 17ft-lbs? BMW recommends 30N-m (22 ft-lbs) and NGK recommends 18-22 ft-lbs?

Quote:
Originally Posted by mineral_f30 View Post
Had issues with misfiring with oem plugs, so I changed them to NGK 1-step colder (95770), gapped them to 0.022", tightened them to 17 ft/lbs, and blew into the coils to make sure there wasn't any debris. Car runs perfectly.
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      10-25-2017, 11:54 AM   #85
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Quote:
Originally Posted by yoandry View Post
Quote:
Originally Posted by EatMoreLobsters View Post
Yes, I've had them in for 10k miles running perfectly
What gap did you use? .20 or .22
I tried .020 first but car didn't like that so I'm at .024 with best results
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      10-25-2017, 01:28 PM   #86
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I like this gap being that stock is 0.028". Also, NGK recommends not changing the pre-gap more than 0.008". The 97506s come pre-gapped at 0.031", so minimum gap should be 0.023".

What did you torque the plugs to?

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Originally Posted by EatMoreLobsters View Post
I tried .020 first but car didn't like that so I'm at .024 with best results
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      10-26-2017, 12:29 PM   #87
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I ordered my plugs thru fcpeuro.com so that way next time i order i send the first one (old ones) for a full refund
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      10-26-2017, 12:51 PM   #88
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Quote:
Originally Posted by FSociety View Post
I ordered my plugs thru fcpeuro.com so that way next time i order i send the first one (old ones) for a full refund
Which one you got? Bosch? Gapining to?
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