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DISCUSSION => Engine management => Topic started by: dwf08 on July 31, 2008, 04:49:12 PM

Title: spark plugs??? what do you run?
Post by: dwf08 on July 31, 2008, 04:49:12 PM: what kind of spark plugs do you guys run? and wat is the best? in a 91 318is
Title: spark plugs??? what do you run?
Post by: tjts1 on July 31, 2008, 05:08:09 PM: ngk BKR6EK
Title: spark plugs??? what do you run?
Post by: EN318isPDX on July 31, 2008, 05:28:58 PM: I believe i read somewhere that BMW developed basically the Bosch double platinum for the M42.
Quote
A new spark plug developed by BMW is used to complete the new M1.7 engine management system. The new spark plug features a 14mm thread, a three-arm "platform" electrode and requires no adjustment. The platform electrode provides a large conductive area which maintains a constant air gap and a uniform flame front during the spark plug's service life.

Source is from http://www.m42club.com/forums/showthread.php?t=5641 (http://www.m42club.com/forums/showthread.php?t=5641)
Title: spark plugs??? what do you run?
Post by: nomad on July 31, 2008, 06:30:41 PM: i have autolite regular platinum tips in mine. It was cheapo ($3 total?) with a coupon and i wanted to replace the super worn out stockers. Runs fine so far and I'll upgrade later
Title: spark plugs??? what do you run?
Post by: AcSchnitzer318is on July 31, 2008, 11:32:46 PM: Quote from: tjts1;54114
ngk BKR6EK

x2:cool:
Title: spark plugs??? what do you run?
Post by: RED IS 91 on August 01, 2008, 06:17:44 AM: Quote from: AcSchnitzer318is;54132
x2:cool:

ngk BKR6EK
+3
Title: spark plugs??? what do you run?
Post by: halcron on August 01, 2008, 07:54:13 AM: I have tried NGK Idridium, denso iridium and BRISK Premium LGS. The Brisk plugs are the best but their lifespan is rather short.

IMHO, NGK or denso ones will be good enough. to get slightly better low end torque, you can side gap the plug a little.
Title: spark plugs??? what do you run?
Post by: Wizard on August 01, 2008, 11:34:26 AM: Denso Iridium IK20's....Will never use anything else. Have tried the Bosch Plat's and they don't compare to Iridiums...Thousands of miles and never a problem.
Title: spark plugs??? what do you run?
Post by: ponchiz318 on August 02, 2008, 10:27:05 AM: I run Bosch Platinum+4. The 4 tip platinums. The car runs a lot better. Partly because when I bought the car, I changed the plugs. It had 3 regular Autolites and 1 Motorcraft Platinum.......
Title: spark plugs??? what do you run?
Post by: 4o4ko on September 11, 2008, 07:41:03 AM: DENSO IRIDIUM IK22 - will run more then fine for more then 100k km

After istalling them engine became much more responsive and quiet
Title: spark plugs??? what do you run?
Post by: quinn11m20 on September 11, 2008, 05:33:25 PM: I use Pulstar plugs. They run about $25 for one and let me tell you they are a lifetime investment. Best plug I have ever owned. Check out their website at http://www.pulstarplug.com. You will be impressed. I noticed a difference after the first gas tank. My car just felt snappier. Seriously check out their website.
Title: spark plugs??? what do you run?
Post by: halcron on September 12, 2008, 04:23:52 AM: Quote from: quinn11m20;56530
I use Pulstar plugs. They run about $25 for one and let me tell you they are a lifetime investment. Best plug I have ever owned. Check out their website at http://www.pulstarplug.com. You will be impressed. I noticed a difference after the first gas tank. My car just felt snappier. Seriously check out their website.

Oh pulstar. After I checked out their website, I have to say I am rather skeptical about it though. They made a terrible claim on ignition velocity. The speed the flame spreads does not improve power at all! In order to obtain peak combustion pressure, ECUs basically advance the ignition timing. If the flame spreads much faster than normal, the ECU will have to retard the timing to prevent knocking.
Title: spark plugs??? what do you run?
Post by: halcron on September 12, 2008, 04:24:38 AM: Btw, I just bought a set of Bosch Platinum Iridium Fusion plugs and I have to say they are even better than the NGKs.
Title: spark plugs??? what do you run?
Post by: Asserti on September 15, 2008, 08:24:51 AM: Quote from: RED IS 91;54140
ngk BKR6EK
+3

+4
Title: spark plugs??? what do you run?
Post by: Cobra Jet on September 17, 2008, 09:18:52 AM: I also have the NGK's.

I'm curious though, do the original BOSCH plugs still exist for pruchase (the ones mentioned in the quote):

Quote
A new spark plug developed by BMW is used to complete the new M1.7 engine management system. The new spark plug features a 14mm thread, a three-arm "platform" electrode and requires no adjustment. The platform electrode provides a large conductive area which maintains a constant air gap and a uniform flame front during the spark plug's service life.

If so, what is the part #? Where these plugs put into the M42 when it was built new? If those plugs did come in the M42, does anyone have any experience with them?
Title: spark plugs??? what do you run?
Post by: ajatya2 on November 30, 2008, 09:13:24 PM: Go NGK Standard or Platnum with out a doubt.
Bosch is ok but if you use them i recomend going with a standard one prong, correct gapping is important. I used to Bosch iriduim fusions with 4 prong and had them in for about 4 months and they started to miss fire and when i pulled them there was oil deposit and signs of predetination. I came to the conclusion they were just too hot and it was dumb to put them in. Bimmers need to stay with just standard / platinum plugs nothing to hot. use only NGK or Bosch
Title: spark plugs??? what do you run?
Post by: txleadfoot on November 30, 2008, 09:35:06 PM: Bosch Platinum +4
Title: spark plugs??? what do you run?
Post by: Vladi on December 01, 2008, 09:37:24 AM: When it was NA -> NGK BKR6EQUP. Flawless. :) Now i'm running some sort of Denso.
Title: spark plugs??? what do you run?
Post by: ajatya2 on December 03, 2008, 12:48:44 PM: Denso are real good too