We just turboed a honda civic with b18b1. We searched the NGK Sparkplug part number for it was ZFR5F-11 is that correct? And since we will want to go with a colder plug, does that mean we need the part# ZFR6F-11? because dont you raise the number from 5 to 6 when your dealing with NGK plugs?

thanks!


ps. on my 4g63 i just changed from a bpr6es to a bpr7es, so i thought id do the same with this...

 

use the bkr plugs. They suit the turbo motor better. Smaller plug lower compression. Use a 6 or 7 heat range, depending on how much boost you want to run.

 

yeah but what im saying is,

when i add 1 to the part number for a colder plug, and search "application listing" on ngk's website, it comes up with a list of cars and it says it works on all these hondas and integra wasnt one of them so i was just asking.

 

I use NGK 6097/ bk7re I think!

 

I believe they're bkr7e's