[D's Bimmer]

I am looking to change out my recently added Bosch spark plugs. I have had defects with two of the Bosch plugs. I am looking at the NGK 95770 plug. I have a custom MHD Tune by Ken at Wedge Performance.

Is this the preferred plug or should I be looking at another option?

Thanks,

[bahn]

Originally Posted by D's Bimmer

I am looking to change out my recently added Bosch spark plugs. I have had defects with two of the Bosch plugs. I am looking at the NGK 95770 plug. I have a sitcom MHD Tune by Ken at Wedge Performance.

Is this the preferred plug or should I be looking at another option?

Thanks,

I'm running the 95770's @ 0.018" gap. Working well for me.

[D's Bimmer]

Originally Posted by bahn

I'm running the 95770's @ 0.018" gap. Working well for me.

I assume that you have manually created the gap right?

[bahn]

Originally Posted by D's Bimmer

I assume that you have manually created the gap right?

Right, the ones I got came gapped @ 0.032". Just gap them yourself and measure the gap with a feeler gauge. The spark plug gap measuring disc tools you find at auto stores are junk and only measure to 0.020" and very inaccurately at that.

[D's Bimmer]

Originally Posted by bahn

Right, the ones I got came gapped @ 0.032". Just gap them yourself and measure the gap with a feeler gauge. The spark plug gap measuring disc tools you find at auto stores are junk and only measure to 0.020" and very inaccurately at that.

Thanks again as always Bahn!!!!

[houtan]

Originally Posted by bahn

I'm running the 95770's @ 0.018" gap. Working well for me.

Are these the n20 plugs? I was going to get these SILZKBR8D8S

[bahn]

Originally Posted by houtan

Are these the n20 plugs? I was going to get these SILZKBR8D8S

No the 95770's are not the N20 plugs. I've never ran the N20's but I've heard good things about them.

[ANMVQ]

Is anyone going a heat range colder with their custom tune?

[Cory S]

Running N20's @ 24psi. .018" gap.
97506's. SILZKBR8D8S

There's also another version - 96987's (SILZKBR8E8S)

[D's Bimmer]

Again, always great information and advice here. So which plug should I go for? I am looking for the prt number? I don't know whether to go with an N20 plug? Should I go one step colder?

[kamfa39]

N20
GAP .018
Won't be disappointed

[D's Bimmer]

Originally Posted by kamfa39

N20
GAP .018
Won't be disappointed

Would you have the part number?

Do you mean this one?

BMW NGK SILZBR8D8S

[houtan]

8d8s is one step colder than n55

There is another n20 plug, I think it ends in 8f8s, that is for flex fuel cars and is two steps colder than the n55 plug. Not sure if that is better or not.

Personally, I am going with 8d8s.

[D's Bimmer]

Originally Posted by houtan

8d8s is one step colder than n55

There is another n20 plug, I think it ends in 8f8s, that is for flex fuel cars and is two steps colder than the n55 plug. Not sure if that is better or not.

Personally, I am going with 8d8s.

Great. So the part number I had for the n20 is correct. Why are you going with this N20?

[flexbrah]

Interested in this thread as well! Just got the wedge tune but had a bunch of corrections from my oem bosch plugs before I flashed the tune. Thinking of just swapping them out for NGKs that are gapped more aggressively

[flexinator]

I'm running these with an MHD custom tune and Meth...and it pulls like a MAD TRAIN!
NGK 5992-4PK Laser Iridium Spark Plug, also gapped to 18/1000"

[Welcome to NBA Jam]

If you want the best of both worlds with your gauge sets, a wire loop gauge is your ticket. You get the adjustment tool with the accuracy of a feeler tool. The only downside is the limited number of measurements. As long as you get one with the gap that your car needs, you'll be fine.

[flexbrah]

Originally Posted by Welcome to NBA Jam

If you want the best of both worlds with your gauge sets, a wire loop gauge is your ticket. You get the adjustment tool with the accuracy of a feeler tool. The only downside is the limited number of measurements. As long as you get one with the gap that your car needs, you'll be fine.

Where would I find a good one?

[JETmn]

Originally Posted by flexbrah

Where would I find a good one?

I couldn't find any wire ones that went below .022". Get a spark plug gauge off Amazon. Get the feeler gauge set with the adjustment tool on it (usually black). That will allow you to bend the electrode easily.

[JETmn]

I have been having an issue with my car that I was quite sure was a boost leak the way it was acting. I had the above N20 plugs above so I put them in while I was hunting for it. I gapped them to .018". The old plugs had 43k miles on them, dealer installed OEM plugs which should be .022". I measured them when they came out and they were over .032"!

Replacing the plugs fixed my car. It didn't behave like a car with bad plugs normally does so I wasn't thinking that was my issue, but held a little hope that was it. Moral of the story, if you are having any issues and the plugs have over 20k miles, change them!

[velociti]

Originally Posted by JETmn

I have been having an issue with my car that I was quite sure was a boost leak the way it was acting. I had the above N20 plugs above so I put them in while I was hunting for it. I gapped them to .018". The old plugs had 43k miles on them, dealer installed OEM plugs which should be .022". I measured them when they came out and they were over .032"!

Replacing the plugs fixed my car. It didn't behave like a car with bad plugs normally does so I wasn't thinking that was my issue, but held a little hope that was it. Moral of the story, if you are having any issues and the plugs have over 20k miles, change them!

I'm not 100% sure what the preset gap is on the N20 plugs, but I believe the gap on the OEM plugs is .028 or .032, so that shouldn't be a surprise. Glad the new plugs are working. My NGK 95770s are a touch rough on startup, but otherwise great.

[JETmn]

Originally Posted by velociti

I'm not 100% sure what the preset gap is on the N20 plugs, but I believe the gap on the OEM plugs is .028 or .032, so that shouldn't be a surprise. Glad the new plugs are working. My NGK 95770s are a touch rough on startup, but otherwise great.

It is a .028" gap stock, I thought it was .022". I might have to see exactly what they were at tonight as the .032" went in no problem and I stopped there.