Recommended Spark Plugs for Stage 1 Cars

[Trevorstein]

In my parts stock.

I've got the NGK's in currently.

Check out "Mod Bargains.com"

[tdott]

Originally Posted by IVM3

Have you used the Bosch ZR5TPP330? I already bought them but would feel better knowing someone has used them on an F8X without issue.

Edit: someone claimed they are different, not sure if this is true....ZMR5TPP330 vs ZR5TPP330 = the middle electrode's diameter is different -> 0.8 mm vs 0.6 mm

Has anyone run the Bosch ZMR5TPP330 without issue?

Installed a set and there was a misfire after driving for a while. Cyl4 misfire (140410) and Misfire on several cylinders detected (140010) codes.

Originally ModBargins website said ZRM5TPP330 were ordered, so we thought they sent the wrong plug since the part number was not the same as what was ordered. Put the originals with 59k back in and so far it's been fine.

MB doesn't want to take the plugs back saying it is the correct part. I didn't notice any cracks on the plug, and they weren't dropped to my knowledge. Perhaps it was a bad plug. But then I would need to install them again, find the misfire again, read the code, swap to another cyl to confirm the misfire moves with the bad plug.

[Uksa007]

Originally Posted by IVM3

Have you used the Bosch ZR5TPP330? I already bought them but would feel better knowing someone has used them on an F8X without issue.

Edit: someone claimed they are different, not sure if this is true....ZMR5TPP330 vs ZR5TPP330 = the middle electrode's diameter is different -> 0.8 mm vs 0.6 mm

Same question here, been doing lots of research and I can't find any definitive info that supports the BMW M plug ZMR5TPP330 having a 0.8mm centre electrode diameter.

On the other hand there is lots of conflicting information that suggests:
ZR5TPP330 has a 0.6mm and 0.8mm electrode diameter.
Bosch data says it has a 0.6mm electrode diameter so let's hope that's at least correct.
I'm wondering if the conflicting info is confusion with the plug default gap which is also 0.8mm.

Is anyone able to measured the centre electrode diameter on the ZMR5TPP330 and ZR5TPP330, so we can put this to bed?
Do you measure the tip of the centre electrode, or the bottom thicker part of the centre electrode, I'm assuming tip?

[Ca_m4mike]

im running bms stage 1 tuner ( where boost is just increased) and i have charge pipes and ssr insakes so far would the ngk 97506 be ok for this or stick to stock

[TopJimmy]

Originally Posted by Ca_m4mike

im running bms stage 1 tuner ( where boost is just increased) and i have charge pipes and ssr insakes so far would the ngk 97506 be ok for this or stick to stock

Either set would be fine in your case.

[Jim45678]

Gents,

Am i looking at correct NGK spark plug?

NGK
Group: LASER IRIDIUM
Model: SILZKBR8D8S
Number : 97506

is it fine to running these on CS/GTS/ Stage 1 map using 93 (98 RON) gasoline for daily driving and switching to custom stage 2 / stage 3 map when needed for night racing?

[TopJimmy]

Originally Posted by Jim45678

Gents,

Am i looking at correct NGK spark plug?

NGK
Group: LASER IRIDIUM
Model: SILZKBR8D8S
Number : 97506

is it fine to running these on CS/GTS/ Stage 1 map using 93 (98 RON) gasoline for daily driving and switching to custom stage 2 / stage 3 map when needed for night racing?

Yes, right plugs.
Gap down to 0.021"

[TheHunterHofman]

Originally Posted by Uksa007

Same question here, been doing lots of research and I can't find any definitive info that supports the BMW M plug ZMR5TPP330 having a 0.8mm centre electrode diameter.

On the other hand there is lots of conflicting information that suggests:
ZR5TPP330 has a 0.6mm and 0.8mm electrode diameter.
Bosch data says it has a 0.6mm electrode diameter so let's hope that's at least correct.
I'm wondering if the conflicting info is confusion with the plug default gap which is also 0.8mm.

Is anyone able to measured the centre electrode diameter on the ZMR5TPP330 and ZR5TPP330, so we can put this to bed?
Do you measure the tip of the centre electrode, or the bottom thicker part of the centre electrode, I'm assuming tip?

Although a bit late to the party:

Apparently my spark plugs (ZR5TPP330) were gapped at 0.7mm (although the box said 0.8mm). Hope this helps.

[M 4 FUN]

What plugs are stock in a M4 GTS?

[aradaiel]

Originally Posted by Uksa007

Same question here, been doing lots of research and I can't find any definitive info that supports the BMW M plug ZMR5TPP330 having a 0.8mm centre electrode diameter.

On the other hand there is lots of conflicting information that suggests:
ZR5TPP330 has a 0.6mm and 0.8mm electrode diameter.
Bosch data says it has a 0.6mm electrode diameter so let's hope that's at least correct.
I'm wondering if the conflicting info is confusion with the plug default gap which is also 0.8mm.

Is anyone able to measured the centre electrode diameter on the ZMR5TPP330 and ZR5TPP330, so we can put this to bed?
Do you measure the tip of the centre electrode, or the bottom thicker part of the centre electrode, I'm assuming tip?

I'm currently installing plugs in my f82. Using Bosch zr5tpp330. I just measured the electrodes and they're both .8mm

The thing that was different was on the new Bosch branded plugs the gap measured .032-.035 out of the box. My "worn" factory plugs measured .028-.03

The M in the part number is most likely the manufacturer specific version internal to Bosch, which may include a smaller gap as they're supposed to come pre-gapped. I'm just gapping the bosh branded ones to .028 and tossing them in. We'll see what happens

[Jim45678]

Originally Posted by TopJimmy

Yes, right plugs.
Gap down to 0.021"

finally got them. These are correct aren't they?

[TopJimmy]

Originally Posted by Jim45678

finally got them. These are correct aren't they?

Yep! Make sure you gap them right.