What are the recommended spark plugs for the 20b I see
the stock plugs are:
bur9eq in trailing
and
bur6eq leading
I have lots of the 9's in bur9eqp's
but should I use 7's in the place of the 6's that
come in the Cosmo?

matt

 

come on guys what plugs are you guys using in your 20b's?
am i safe using 9's and 7's?

matt

 

i think i'm using all 9's.
the 9 (or 7) is the heat range, with 9 being colder.
since 7 is colder than 6 i think you would be fine.

mike

 

Well I guess I am ok took it out for a test drive this morning
after doing the silicone hose thing and new plugs
and 2 82c stats, all I can say is, its 100% better,
there must have been a bad hose in the bunch .
I have full boost to red line now what a difference!
matt

 

cool. i took the stock boost control out, so i only get about 5psi, and its still fast.

mike

 

the roads were wet this morning so i couldnt really push it, but i was seeing 9lbs on the 1st turbo and about 7 on the 2nd, which i think is about right for stock

matt

 

that sounds good to me =).

mike

 

I'm running all 9's on mine for now. After the car gets tuned more aggressively, than plan on using 11.5's.