N54Tech.com - International Turbo Racing Discussion
(#76)
Old
2007BMW335i 2007BMW335i is offline
Old Man
 
Posts: 3
Join Date: Jun 2019
Car: 2007 BMW 335i
Default RUTHENIUM HX Installed PSPE version. 0.021" gap - 06-22-2019, 04:57 PM

I had the Autolite APP 5682's , about a year old. I took 2 data logs in the morning with the old plugs and 2 in the evening with the new plugs. (NGK 91784 aka LKAR8BHX) The orange and green lines are the new plugs and the blue and red lines are Autolite Double platinums. I didn't accelerate from the same rpm each time so below 4000 rpm you cannot really compare but once the boost stabilized you can see the new plugs made a huge difference. It was 3 cooler but I used SAE correction for temperature.

It was not missing or having timing corrections on the old plugs.

New Plugs: https://***********/u/scottxp800/log...7-8-9-10-11-21 data zap dot me no spaces for the ************* site blocks link?

Approximate gap 0.021" not dragging on a 0.020" feeler gauge and a 0.022" would not fit.

This is a custom (Wedge/Ken) E50 tune 22-23 psi stock turbos. FBO except for outlets, no cats. I need to set my shift points up to see where the HP drops off and reset them to what these plugs are doing for HP and TQ at higher rpm's.

I'm wondering what kind of problems people were having with GTR plugs. Other than maybe fouling early due to heat range I can't imagine why there would be an issue.

Not sure anyone has tried this particular plug.(that I have seen)

PSPE (projected square platinum electrode) provides the best ignitability and service life for high-heat engines. This NGK-patented design is recommended for turbo and supercharged engines.

Ruthenium HX„ Spark Plugs | NGK Spark Plugs
Attached Images
 


VRSF Charge pipe, 5.5 IC, Dual Cone, Cold side inlets, dual 3" down . F&R c@t delete, walbro 450, E50 Tune, 23 psi, N20 TMap, Stock snails, MHD, xHP.

Last edited by 2007BMW335i; 06-22-2019 at 05:04 PM..
Reply With Quote
(#77)
Old
2007BMW335i 2007BMW335i is offline
Old Man
 
Posts: 3
Join Date: Jun 2019
Car: 2007 BMW 335i
Default 07-09-2019, 11:02 AM

I would sure like to see someone else try these plugs with either a real dyno or virtual dyno results. Look at the power and torque on my virtual dyno graph above 4200 rpm... My results make it look like just these plugs give 10-20 hp/torque. That's insane for a spark plug if it's for real. I don't really want to go back to the old plugs just to verify.


VRSF Charge pipe, 5.5 IC, Dual Cone, Cold side inlets, dual 3" down . F&R c@t delete, walbro 450, E50 Tune, 23 psi, N20 TMap, Stock snails, MHD, xHP.
Reply With Quote
(#78)
Old
Rule77's Avatar
Rule77 Rule77 is offline
Junior Member
 
Posts: 114
Join Date: Jan 2019
Car: 08 E90 335i
Default 07-23-2019, 08:13 PM

Can anyone suggest what I should gap NGK 97506 plugs with stock turbos?


08 E90 335i
MONTEGO BLUE
JB4/MHD E85 BEF
BMS DCI
BMS OCC
BMS COWL FILTERS
VRSF ⬇️ Ps
MMP CHARGEPIPE
TIAL BOV
VRSF 7.5 RACE FMIC
BMS PEDAL TUNER
BMS PCV VALVE
NGK 97506 @ .022
3.5 BAR TMAP
STAGE 2 LPFP
H&R SPRINGS
19' 666m WHEELS
Reply With Quote
(#79)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 07-23-2019, 10:11 PM

Quote:
Originally Posted by Rule77
Can anyone suggest what I should gap NGK 97506 plugs with stock turbos?
I would do .022
Reply With Quote
(#80)
Old
Rule77's Avatar
Rule77 Rule77 is offline
Junior Member
 
Posts: 114
Join Date: Jan 2019
Car: 08 E90 335i
Default 07-24-2019, 05:49 AM

Quote:
Originally Posted by THE BEAST
I would do .022
Thanks


08 E90 335i
MONTEGO BLUE
JB4/MHD E85 BEF
BMS DCI
BMS OCC
BMS COWL FILTERS
VRSF ⬇️ Ps
MMP CHARGEPIPE
TIAL BOV
VRSF 7.5 RACE FMIC
BMS PEDAL TUNER
BMS PCV VALVE
NGK 97506 @ .022
3.5 BAR TMAP
STAGE 2 LPFP
H&R SPRINGS
19' 666m WHEELS
Reply With Quote
(#81)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-03-2019, 07:14 PM

New Autolite XP 5682, new rough idle? warmed up its perfect.

I noticed some things when gapping these to .022" - the outer negative electrode needed to be bent down quite a bit. It was no longer "90-degrees", just with a shorter gap... and was off center compared to the iridium tip. After I got them straightened out the angle was still strange, you could see it tilt the feeler gage.

I couldn't isolate the plug by removing the wires from each coil pack. Each one felt the same, misfired the same, when I removed the connector harness.

After the car warmed up, the misfires went away on their own. Then the car drove perfect.

Then later tonight I started it again and it rough idled for about 30 seconds then cleared itself up.

Old bosch plugs looked good, uniform coloration. Bosch coil packs are about 25k miles old. I was experiencing some misfires under low/med load at low rpm (typical stop sign roll).


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#82)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 11-03-2019, 08:04 PM

Quote:
Originally Posted by nextNME
New Autolite XP 5682, new rough idle? warmed up its perfect.

I noticed some things when gapping these to .022" - the outer negative electrode needed to be bent down quite a bit. It was no longer "90-degrees", just with a shorter gap... and was off center compared to the iridium tip. After I got them straightened out the angle was still strange, you could see it tilt the feeler gage.

I couldn't isolate the plug by removing the wires from each coil pack. Each one felt the same, misfired the same, when I removed the connector harness.

After the car warmed up, the misfires went away on their own. Then the car drove perfect.

Then later tonight I started it again and it rough idled for about 30 seconds then cleared itself up.

Old bosch plugs looked good, uniform coloration. Bosch coil packs are about 25k miles old. I was experiencing some misfires under low/med load at low rpm (typical stop sign roll).
Wrong plugs. Autolites suck for boosted N54s
Reply With Quote
(#83)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-04-2019, 06:32 AM

Thanks beast. Stock plugs on order. I have a set of NGK 97506 but was worried "2 steps colder" was too much for a stock-ish N54.

I saw a few negative comments about the Autolites, but, I guess they all should be negative. Same issues as everyone else.

Maybe a disclaimer can be added to Post #1 in this Thread about the known issue?


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#84)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 11-04-2019, 10:29 AM

Quote:
Originally Posted by nextNME
Thanks beast. Stock plugs on order. I have a set of NGK 97506 but was worried "2 steps colder" was too much for a stock-ish N54.

I saw a few negative comments about the Autolites, but, I guess they all should be negative. Same issues as everyone else.

Maybe a disclaimer can be added to Post #1 in this Thread about the known issue?
Should have thrown in the 97506 before purchasing stock. You never know , they may have worked fine.
Reply With Quote
(#85)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-08-2019, 03:58 PM

I put in the 97506’s and they drove great for two days. But today during lunch I saw quite a bit of smoke from the tailpipe as I was idling in the parking spot. Has been misfiring a bit today as well. Smells oil-ish and appears greyish more than blue.

After a 45min long commute there is no smoke. Misfired a bit on the drive home but.

Gapped you’re .020”. Overall these plugs feel much better than my old stock plugs. When you get on it it’s great. Doesn’t feel quite right when idling, mild acceleration, or quickly letting off throttle. No codes.


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#86)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 11-11-2019, 10:37 AM

Quote:
Originally Posted by nextNME
I put in the 97506s and they drove great for two days. But today during lunch I saw quite a bit of smoke from the tailpipe as I was idling in the parking spot. Has been misfiring a bit today as well. Smells oil-ish and appears greyish more than blue.

After a 45min long commute there is no smoke. Misfired a bit on the drive home but.

Gapped youre .020. Overall these plugs feel much better than my old stock plugs. When you get on it its great. Doesnt feel quite right when idling, mild acceleration, or quickly letting off throttle. No codes.
Still running these ? Still having issues mentioned ?
Reply With Quote
(#87)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-11-2019, 11:23 AM

I put the new stock Bosch plugs back in yesterday. Today there is no smoke, no misfires.

However, I did have to clean the spark plug tubes "seal area"... there was debris where the crush washer would seal. After the plugs were removed I used a pick tool and vacuumed it out really good. Maybe the issues were that the plugs weren't truly sealed to the head?

It was also really cold last week when I had the 97506's in there.


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#88)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 11-11-2019, 11:26 AM

Quote:
Originally Posted by nextNME
I put the new stock Bosch plugs back in yesterday. Today there is no smoke, no misfires.

However, I did have to clean the spark plug tubes "seal area"... there was debris where the crush washer would seal. After the plugs were removed I used a pick tool and vacuumed it out really good. Maybe the issues were that the plugs weren't truly sealed to the head?

It was also really cold last week when I had the 97506's in there.
Hard to say, only you would know if they were tight enough / properly torqued when installed.
Reply With Quote
(#89)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-11-2019, 11:30 AM

Yeah I made sure to torque them to 18ft-lbs in all instances.


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#90)
Old
THE BEAST THE BEAST is offline
Legend
 
Posts: 1,156
Join Date: Apr 2016
Car: 2008 E93
Default 11-11-2019, 12:07 PM

Quote:
Originally Posted by nextNME
Yeah I made sure to torque them to 18ft-lbs in all instances.
Where did you get the NGKs from ?
I ask because people have said that there are quite a bit of counterfeits out there.
Reply With Quote
(#91)
Old
nextNME's Avatar
nextNME nextNME is offline
Junior Member
 
Posts: 48
Join Date: Jan 2016
Car: 2008 535xi
Default 11-11-2019, 12:10 PM

Quote:
Originally Posted by THE BEAST
Where did you get the NGKs from ?
I ask because people have said that there are quite a bit of counterfeits out there.
Thanks for your replies. I bought them directly from Burger Tuning.

I do have a few other issues going on with the car... might not be plug related...


2008 535xi. BMS DCI. CP. BOV. 5" FMIC. OCC. JB4. MHD BEF. XHP. BR14's
Reply With Quote
(#92)
Old
DaddyNPH DaddyNPH is offline
New Member
 
Posts: 3
Join Date: Dec 2019
Car: 2009 E60 535i
Default 12-05-2019, 09:21 PM

Autolite 5682 plugs should be removed from the list, they are not accceptable plugs for a boosted N54. I have used the Autolite 5682xp plugs in multiple N54 motors and they always foul in a matter of weeks to months. I gave used them in a stock 2008 E60 535i with an E30 tune, 2009 E60 535i FBO E50 tune, 2009 E9x 335i with down ***** and E30 tune, and a stock 2010 E60 535i with a 93 octane tune. I have been running these plugs for about 18 months on the 2008 E60 and kept getting plagued with random misfires. I would swap coils, run injector tests, recode injections, and noticed that on many occasions the plugs had to be regapped. On some plugs the insulator blew apart, on others the iridium electrode tip would be snapped or bent. Then most recently when I went to replace the most recent time when two plugs failed at once I realized the reason the gap was too large was because the platinum electrode disc was blown off the plug(the disc is blown off in the previous posters picture as well) . These are double tipped plugs with a central iridium tip and a platinum disc welded to the tip of the plug. I went and I pulled all the plugs from all four cars and around 50% of the plugs had the platinum disc blown off.4 of which with the broken tips were in the car for less than 3 months. It is hard to see in the picture, but a damaged tip will have a divet at the tip of the plug and normally a black scorch mark. A good or new plug will have a tiny shiny disc at the end of the plug. DO NOT RUN THESE IN TUNED N54 CARS, THE PLATINUM DISC WITH BLOW OFF WITHIN 2000 MILES AND CAUSE MISFIRES OR POSSIBLE INTERNAL ENGINE DAMAGE IF THE PLATINUM DISC GETS CAUGHT BETWEEN THE PISTON AND THE CYLINDER WALL.
I have been running NGK plugs for a little over a month and so far all the misfires in all four vehicles are gone.
Attached Images
  
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2019, N54tech.com