N54 high power spark plugs

[BigTony517]

I have seen a lot of talk about N54 plugs for upgraded turbo(s) and e85 but never have seen anyone mention the race version of the recommended NGK plugs.
Has anyone dropped the $180 for these?
My buddy who has a 10s WS6 6MT said it's crazy that N54 guys use conventional plug designs with such high output. Especially when many people get top end breakup and misfires.

Siting RPM Engines and Machining who posted that they were using these plugs on a S55 build.


NGK 97537 R2558E-9 Racing Plug

 

[NoGuru]

I have seen a lot of talk about N54 plugs for upgraded turbo(s) and e85 but never have seen anyone mention the race version of the recommended NGK plugs.
Has anyone dropped the $180 for these?
My buddy who has a 10s WS6 6MT said it's crazy that N54 guys use conventional plug designs with such high output. Especially when many people get top end breakup and misfires.

Siting RPM Engines and Machining who posted that they were using these plugs on a S55 build.


NGK 97537 R2558E-9 Racing Plug

But what we use works...

I haven't heard anyone run these but I would like to hear from someone who races.

 

[veer90]

NGK 95770 or 97506 depending on power level and call it a day.

 

[mfractal]

I had some bad experience with 95770 on my previous n54 car. No matter what I gapped them at car would misfire. 97506 never gave me trouble.