which one is the best spark plug for n/a setup??
250-270whp H22A engine
run with europe 100 octane fuel ( about USA 93 octane fuel) and E85 Bioethanol (2 ECU-programms)
NGK, HKS, Denso, (Iridium) OEM Honda,....
i also can use a MSD Blaster SS Coil -> if recommend

thanks for info!!

 

ngk copper.

 

i never heard from that one

which heat range?
7 or 8?? for street and circuit race

 

+1

 

ngk copper v-powers. with your power and compression I'm gonna safely say starting at a 7 heat range will do you best.

 

thanks for answer!
are 8 heat range to much?

+1
?? what do you mean??

 

ZFR7F-11 is a great part number for H-series all-motor apps.
BKR7E-11 is good for B-series

 

Search google and here.. how to read sparkplugs..

 

I run NGK stock number 1095 (sorry dont have part number memorized) which are the "cold 7s"....I run about 12.5 ish comp on pump gas.

(its on a b series motor too)