PFR7B's at 1 BAR boost

hmmm

Member
My car is running 1 BAR boost (298 bhp) and is using PR7B spark plugs. (This was all set up by Powerstation). Should I change these to the heat range 8 plugs or are these ok?

Thanks.
 

Rishi

Still waiting on some shims!
hmmm said:
My car is running 1 BAR boost (298 bhp) and is using PR7B spark plugs. (This was all set up by Powerstation). Should I change these to the heat range 8 plugs or are these ok?

Thanks.

Use Grade 8 to be safe... 7's won't last long...



Rishi
 
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