20v turbo "spark plugs??"

[lorolla24]

Anybody know what the type of spark plugs to use with 20v turbo with ZE pistons installed?what to use NGK but don't know which grade. going to run between 15-20 psi.

[EVLGTZ]

yep id run BCPR7ES-8s or possibly even one colder BCPR8ES-8s for those higher boost levels.

I think std 20v gap is 1.1? but prob best to use .8 on turbo application so thats what i've recommended above.


These are what I run on my 4agte

[lorolla24]

Is the detail of the spark plug area "hole size and depth" the same between the 16v head and 20v head?

Are those ones you stated NGK?

[Lloyd]

As above, BCPR7ES should do the trick. Never had issues with them in my 4AGTE. 4AGEs are of heat range 5 (I think), 4AGZEs are one colder at 6 so go one colder again with 7.

EDIT- Yes those are NGK codes and they'll be fine for 20V or 16V

[EVLGTZ]

Is the detail of the spark plug area "hole size and depth" the same between the 16v head and 20v head?

actually good point. i think the 20vs use the BKR std as opposed to BCPR. Therefore if there is such a plug go for a BKR7ES-8

Are those ones you stated NGK?

yep

[TrouserFxGt]

actually good point. i think the 20vs use the BKR std as opposed to BCPR. Therefore if there is such a plug go for a BKR7ES-8

yeah they are bkr6ep-11 standard.

[matt dunn]

In my 20V turbo I use the standard NGK plug listed for a 20V but the 0.8mm gap ones not the 1.1 listed.

From memory they are BKR6EP.

I run 18 to 20 psi and do not have a problem.


Matt