seanrot

iTrader: (2)

OK, Im going to get new plugs for the 7 hoping it will help smooth out the problems I'm having. besides need to tune the carb to good plugs anyways.

Here is the break down

1980 engine
Turbo'ed
Direct fire
more spec's in the signature if needed.

What plugs should I get to run in this baby.

diabolical1

iTrader: (3)

check out the NGK B_EV plugs (i use 7(L) and 8(T), but i'm sure you'll need something colder for your turbo) - i'm starting to wonder why i didn't try them years ago ...

other than that, maybe look into getting the plugs for a T2 ... i'll guess you've limited boost to 10 psi at the most, so try the recommended plugs for an unmodified T2. if i'm wrong about your limit, then maybe shoot for something colder.

Jeff20B

iTrader: (13)

Plugs for a T2 are BUR7EQ leading and BUR9EQ trailing.

mazdaverx713b

iTrader: (91)

as mentioned above, the turbo's plugs are a great choice because of heat range and their ability to cope with high internal engine and combustion temperatures. they will work, and will show themselves well when using the direct fire setup, as they can handle the added spark energy.

seanrot

iTrader: (2)

Thanks guys, that and my exhaust are to be next weekends projects. Hopefully.

Jeff20B

iTrader: (13)

I've seen what B8EV plugs are capable of, and wasn't impressed. Then we went to direct fire and BUR7EQ in leading and BR8EQ-14 in trailing (because trailing was still running through the cap) and it ran SO much better! It was a 13B powered B2000 that I installed DLIDFIS in last year.

Wankelguy

I tried some B7EV plugs in my RX4, and while the midrange seemed to have a little more grunt, the dang things just didn't last long enough for me to consider them for regular use.

Jeff20B

iTrader: (13)

Aren't the B_EV series plugs for motorcycles? Aren't they expensive? I got the answer I wanted about them when I called Racing Beat. They said to use them in a high HP ported engine. I told RB that I was going direct fire and had some BUR7EQ for leading and BR8EQ-14 for trailing. RB said to try it. I'll tell you what, those B8EV plugs were truely pathetic in comparison to the FC in leading (direct fire) and FB in trailing (through the cap). That goes to show that it's best to get the plugs that were meant for the ignition system you're using (as I've said here several times before).

seanrot

iTrader: (2)

OK get the plugs for the ignition system your using. So, go with the FC BUR7EQ plugs for leading and a little confused on the trailing. Well, the engine is an 80 but the ignition is the 85. For the most part I dont think there was too much of a difference in the ignition systems except for the wiring. So should I go with the 1980 BR8ET's or the BR8EQ-14 for the 85? I'm guessing the BR8EQ-14's.....

This should be fun in the autoparts store. Can you see it now with the way the guys behind the counter work. I would like these two plugs from this car, these two from this one and, oh yeah can you get in the computer one more time and get me two plugs from this car

Wankelguy

About the B7EV plugs: Yes, they are motorcycle plugs. Gold Palladium plugs I believe.
I think I paid about $4.50 ea. for 'em.
I tried them because I read the following in my 1985 Racing Bleat catalog and it piqued my curiosity:

"Contrary to earlier test results, recent testing has shown that the current factory recommended spark plugs (BR_EQ14 and W__EDR14 series) are virtually as good as the NGK B_EV series which had previously been proven best for performance."

Jeff20B

iTrader: (13)

seanrot, yes I've confused the parts guys before. I like it when I know certain parts numbers better than they do.

Yes, BUR7EQ for leading if you've got direct fire. Otherwise, just use BR8EQ-14 in all four holes if running through the cap as in standard '81-'85 ignition systems.

I've still got some old BR8EQ-14s in all four holes of some of my engines running DLIDFIS. The plugs still work, so I'll keep them until it's time to do a 'tune up' (heh, I'm not really 'tuning' anything during a plug swap).

That's a decent price for the B7EV plugs because it's the same as BUR7EQs from my local Schuck's.

Yeah, I have two of those '85 RB catalogs. I guess the B_EV series plugs were an alternative to B7EM, B7ET, BR8ET etc from the olden days before BR8EQ-14 came out? That makes sense to me.

I can't wait to fire up my 20B with BUR7EQ in leading with TLIDFIS (that's DLIDFIS with a T).

diabolical1

iTrader: (3)

well, i can't argue with you guys on the B_EV plugs, all i can do is speak from my experiences thus far. i tried them for the first time about a year and a half ago (while i was still having issues trying to get the Dell'Orto and fuel pump tuned on the 13B) and they seemed to resist the constant flooding that i was experiencing much more than the BR_EQ-14 plugs that i had been using.

don't get me wrong, i think the BR_EQ-14 plugs are great, but i have had great performance and longevity from the B_EV's and they are less expensive to boot (not the 7's though - they are still $9 a pop).

Jeff20B

iTrader: (13)

I'm going to try BUR7EQ plugs with a dellorto.

karism

Ok,now this is interesting....
would anyone suggest that i use a B10 heat range plug?I have a Cheesy 12A(Bp with drilled bridge) ,and its driven on the street

I`am currently running B8es on all 4 plugs.

Thanks!

diabolical1

iTrader: (3)

i would never encourage you not to experiment with plugs, but i think 8 or 9 should be fine ... my opinion.