Best Spark Plugs For E85?

[Schemxr]

So i’ve heard a lot between the classic NGK 97506 and the oem bmw “high power” 12120042724 (ngk SILZKBR8F8S)

I am running full E85 and i would consider my car to be considered in the higher boost ranges as my low boost map is 29 psi.

has anyone has an experience of running either and at what boost levels and fueling?

I went to do a log yesterday and the first log looked fine but the second time i went to go log, the moment i shifted into 4th, my power cut off and i got missfire codes and fuel injection shut off codes.

the injectors are brand new, just put them in and coded correctly and the tune adjusts for the eu5 DI.

Just waiting for my tuner to get back to me but in the meantime wanted to ask around if anyone had any experiences with either

[n8dgr84]

Made 572 on these last week.
E60 F80 Paul tune stock turbos/ fuel system
.022 gap stock coils.
Change them every 10k
https://www.fcpeuro.com/products/bmw...mw-12120042724

[Schemxr]

Originally Posted by n8dgr84

Made 572 on these last week.
E60 F80 Paul tune stock turbos/ fuel system
.022 gap stock coils.
Change them every 10k
https://www.fcpeuro.com/products/bmw...mw-12120042724

how much boost were you running? my low boost map is 30psi

[mike@x-ph.com]

I recommend the NGK 97506 "2 Step Colder" Spark Plug

[n8dgr84]

Originally Posted by Schemxr

how much boost were you running? my low boost map is 30psi

Max on stock turbos is about 22 on top end.
You may want to close the gap to .018 and/or run B58 coils. https://vadersolutions.com/products/...40517517934701

[hellokitty]

F8S should be standard issue plugs on full E85 cars. 97506 are good for pump gas but timing won’t be clean as F8S on E85.