turbo spark plug questions what size?


I have an h22a4 stock motor and a turbo kit t3/04e bigger kit that I am running. I was told to go 2 stage colder plugs so I went to napa and they told me I couldnt because I was at the bottom of my heat range. Can you tell me what plugs i should have or what anyone is running?

 

i'm running rgk copper r's 2 heat ranges colder, i ordered them online...the part # is 3330


Modified by killa_lude at 12:58 PM 1/26/2004

 

ZFR7F (one step colder, copper OEM equivalent)
BCPR7ES (one step colder)
R5672A-8 (two steps colder)

 

aren't the zfr7f's the extended/projected tip
I've been using bkr7e for teh past few years and haven't had a problem with them.

 

Yes ZFR7's have projected tip.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wo-Nelly &raquo;</TD></TR><TR><TD CLASS="quote">aren't the zfr7f's the extended/projected tip
I've been using bkr7e for teh past few years and haven't had a problem with them.</TD></TR></TABLE>
Yes, the ZFR7F does have an extended, projected tip, which is why I had added that it was a copper OEM equivalent.

 

the zfr's are what i like. i have some bkr's in there now and it miss's.

 

[QUOTE=sharkcohen]BCPR7ES (one step colder)QUOTE]

The bcpr7es are actually 2 steps colder then stock. Keep in mind you do not want to run a projected tip spark plug since it sits further down inside of the combustion chamber. This will introduce the plug to hotter temperatures which can lead to pre-ignition and/or detonation.

The bcpr7es are the best ones to get, part number 3330 as stated previously. Gap them to about a .030 for 10psi and if you are running an ignition system then you can even go down to a .028 if you want.

 

BCPR7ES is a 7 heat range plug. The OEM H22a4 plug is PZFR6F-11, a 6 heat range plug.

Of all the plugs I have tried, I think I have been the happiest with BCPR7ES.

 

Well I'll be damned you are right. WTF have I been thinking all along?

I also second the notion that the bcpr7es are the plugs that I have been the happiest with sofar.

 

anybody try running the Denso iridium plugs yet with turbo??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flip1199 &raquo;</TD></TR><TR><TD CLASS="quote">anybody try running the Denso iridium plugs yet with turbo??</TD></TR></TABLE>

those plugs are too hot for a turbo application!

 

where is the best place to buy these plugs?

Also, since my engine is on its break in period, can I still use these plugs?

The turbo is on the engine, but I have the charge pipe disconnected right now until the engine is broken in properly.

 

inlinefour.com is where i got mine...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killa_lude &raquo;</TD></TR><TR><TD CLASS="quote">inlinefour.com is where i got mine... </TD></TR></TABLE>

does $20 for 4 sound right?

 

i payed $12 i think

 

You can get the ngk 3330's from any advanced auto parts. They run usually under a doller and some change a plug and they usually get them over-nighted when they are ordered.

 

I went to INLINEFOUR.com and they have two options for H series.

H-series Temp 8
H-series Temp 7 (iridium +$40.00)

I got the Temp 8.. is that correct?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by killa_lude &raquo;</TD></TR><TR><TD CLASS="quote">

those plugs are too hot for a turbo application!</TD></TR></TABLE>

Huh? The Iridiums are available in heat ranges just like a copper or platinum unit. I've been running Denso IK24's ever since switching to my coil-on-plug setup....in fact I think you'll find a large number of Supra guys running this same plug on high-hp single setups.

Prior to this I had always used ZFR7F-11's with no issues. I've been considering going back to a copper plug as I've never been a fan of the unobtanium, mega-bucks type plugs.

While we're on the subject...can anyone confirm that the BCPR7ES's have a threaded cap on the connector?? I need to have this as the CBR coils require a motorcycle-type plug.

--Ian

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clendaniel &raquo;</TD></TR><TR><TD CLASS="quote">

Huh? The Iridiums are available in heat ranges just like a copper or platinum unit. I've been running Denso IK24's ever since switching to my coil-on-plug setup....in fact I think you'll find a large number of Supra guys running this same plug on high-hp single setups.

Prior to this I had always used ZFR7F-11's with no issues. I've been considering going back to a copper plug as I've never been a fan of the unobtanium, mega-bucks type plugs.

While we're on the subject...can anyone confirm that the BCPR7ES's have a threaded cap on the connector?? I need to have this as the CBR coils require a motorcycle-type plug.

--Ian
</TD></TR></TABLE>

huh....i always thought you didnt want to run iridiums for a turbo app...i talked to some of my friends too and they said that you can...i was wrong

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clendaniel &raquo;</TD></TR><TR><TD CLASS="quote">While we're on the subject...can anyone confirm that the BCPR7ES's have a threaded cap on the connector?? I need to have this as the CBR coils require a motorcycle-type plug.</TD></TR></TABLE>
I'm not sure what you mean by threaded cap, but here is a picture of BCPR7ES for you:

 

Iridiums are a waste of money. Anyone who pays $40 bucks for plugs on their honda is a moron. Personally, I change my plugs every oil change or so. Plus advanced auto gives you a one year warranty on them. So buy 2 sets, and whenever you change them go back to advanced and tell them your old ones are fouled out and then they replace them for free for a whole year.

Run the 3330's. And if you run more then 500whp run a ngk stage 8 plug.

 

so which ngk's are the best for your joe shmoe bolt on setup,
the v-powered one's?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">so which ngk's are the best for your joe shmoe bolt on setup,
the v-powered one's?</TD></TR></TABLE>

NGK copper V-power ZFR7F-11 (Stock number 2975) is what I use, for my Joe shmoe motor..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PrecisionH23a &raquo;</TD></TR><TR><TD CLASS="quote">Iridiums are a waste of money. Anyone who pays $40 bucks for plugs on their honda is a moron. Personally, I change my plugs every oil change or so. Plus advanced auto gives you a one year warranty on them. So buy 2 sets, and whenever you change them go back to advanced and tell them your old ones are fouled out and then they replace them for free for a whole year.

Run the 3330's. And if you run more then 500whp run a ngk stage 8 plug.</TD></TR></TABLE>

advance auto parts cant get the ngk #3330's, in my town, that why i had to order mine from inlinefour.com