Re: spark plug part number
 

BCPR7ES-11

Re: spark plug part number
 

What about the ngk step colder spark plugs for a y8? Is it all the same for hondas?

Re: spark plug part number
 

I believe the thread length is different, but I'm not positive. When you go to get spark plugs, just tell them to give you a set with the next highest number. For example, BKR7E-11 breaks down like this..."B" stands for thread diamter, in this case 14mm. "K" and "R" stand for the construction of the plugs, k standing for hex size 5/8" and projected tip (iso). R stands for resistor type. "7" is for the heat rating, the lower the number the hotter the plug, the higher the number the colder the plug. "E" stands for thread reach, in this case 19mm. "11" designates the gap, but since we're using these in turbo applications the gap number is pretty much useless.
Check here for a complete run down on NGK part number descriptions...http://www.ngksparkplugs.com/techinf...tnumberkey.pdf

Re: spark plug part number
 

11.5:1 B16 running 150 wet shot, using -9's, they finally listened to me and no longer melting plugs or gorund straps.

Re: spark plug part number
 

ya im running the 8s as well

napa part number 4554... lol

Re: spark plug part number
 

these are 7's I believe

Attachment 27451

Re: spark plug part number
 

Interesting...what are the benefits of running these over the part# I posted? Non-resistor core?

Re: spark plug part number
 

shorter ground strap less likely to get hot and melt away.

This is coming from Tom Payn and Gary Rohe.

Normal reach plugs have a longer ground strap, it can't get heat away fast enough and starts melting.

Champions I used to run, Matt Patrick of ZEX/Comp Cams suggested them......

daily driving......

Attachment 27445

After a pass on 85 dry shot, notice the heat trails, perfect......

Attachment 27446

but the NGK's were better, I think I lost those pics when a 160 GB HD crashed.

Stock style plug, one step colder on 65 shot......

Attachment 27447

from when I tired 75 shot on OEM style plugs, 2 steps colder

Attachment 27448

Re: spark plug part number
 

Oh yeah, don't be afraid to try "american parts"

Mustang plugs and Ford 30 lb injectors, really worked for me. I'll looking for a cheap set of SVO 42 lb injectors for the D15B8 high compression build, gonna run it on E85.

Re: spark plug part number
 

I never had an issue with spark when I ran BKR7E (6097)...just buy more than you need. they can be a pain in the ass to get locally. 7 series can be picked up with a slightly different part number from a saab...but at least in my area, they are not always in stock

I used to buy them 20 at a time from rockauto.com