mt_goat

This NGK laser platinum plug might be worth trying, it does have dual ground straps and it has a platinum ground and tip (double platinum). http://www.ngksparkplugs.com/product...r_platinum.asp

Pic of it: http://www.ngksparkplugs.com/part_fi...KR5EKPB-11%20*

I'm thinking this might last longer than the iridium IX since the IX doesn't have the platinum ground or dual grounds (not good for our 5VZFE waste spark ignition system).

They list the BKR5EKPB-11 for the 5VZFE (stock application)

The laser iridium sounds even better (iridium tip and platinum ground) but I don't see one for the 5VZFE.

eddieleephd

bkr7eix11 iridium 2 steps cooler
was not seeing the eix in the NGK chart but I just searched it and my post is the only place I see them come up through Google so I see you meant eix which is what I was asking..
sorry for any confusion due to my confusion

eddieleephd

the only thing I saw when I looked at that plug is that it is not a cooler plug but it may not need to be wish it had at least a 6

added a 6 and searched and came up with being 1 step cooler
http://www.amazon.com/NGK-BKR6EKPB-1.../dp/B000F0G0S6 and http://www.sparkplugs.com/results_fi...id=bkr6ekpb-11

and a adding a 7 gives being 2 steps cooler
http://ngk.carshopinc.com/product_in...81167/BKR7E-11

And remember the k after the number means 2 ground and t= 3 ground also seeing q= 4 ground

and the e ==thread reach of .75" or 3/4"

mt_goat

Yeah I was hoping to find it 2 steps cooler, looks like you can only go 1 step cooler with it. Someone buy those and test them for me LOL. Chris360 you should try those since you are fouling out with the 2 steps cooler IK22.

That 3rd link is just a copper plug.

eddieleephd

Hey I got one of those hairs up my behind and called to ask they offered a BKR7EQUP WHICH IS A 4 GROUND PLATNUM
http://www.ngk.com/results_cross.asp?pid=BKR7EQUP

The lady said they were Toyota specs platnum, what ever that means however due to the # I see they will fit maybe worth a try...

3rd one was copper??? didn't know

mt_goat

Yeah I think those are worth trying, they are not double plats but with the 4 ground straps they should last quite a while.

BTW did you see the listing for applications for that plug? There was only one, a Porsche 911 Carrera. I mention that because the one Denso plug I really wanted to get (Iridium Tough VK22) was also for the 911 Carrera but its not available in the US market. More on that was in this thread: https://www.yotatech.com/forums/f2/e...h-bank-177019/

eddieleephd

funny I remember that thread I never got to a list I just called and talked to a lady at sparkplugs.com and told her I needed the first three numbers and wanted a 7 heat range and she came up with the previously mentioned plugs I said thank you and searched it to find a link to post,
Porsche carrera 911 huh?? that is funny well they are not cheap but you may try them and post the results you find they are a limited surface spark plug so who knows???

eddieleephd

oh yeah http://www.amazon.com/NGK-Multi-Grou.../dp/B0030N016M
& http://www.amazon.com/s?ie=UTF8&x=0&...ch-alias%3Daps
or
http://www.perfectimportparts.com/OE...earch=BKR7EQUP

mt_goat

Yeah I started to call the Porsche dealer and ask what plugs they have, but then I remembered there isn't one in town.

mt_goat

Yeah I'd say try that one, or if you are having problems fouling out quickly (chris360) go with these: http://www.amazon.com/NGK-BKR6EKPB-1.../dp/B000F0G0S6

eddieleephd

http://lkperformancestyling.co.uk/pr...oduct=BKR7EQUP
also recommended for the mini?? and the boxter porsche

Really love how amazon says they do not fit our truck but the numbers say they do!!!

mt_goat

Probably because they are too cold for a stock 5VZFE. Notice the Mini and 911 models are forced induction from the factory.

vital22re

iTrader: (2)

From a buddy's sc 4runner no fuel mods. 122,000 on rig dont know when it was sc'd or by who. cylinder plug was pulled from now has 30 psi. passeger bank has 230 ish psi driver starts at 120, 90 and 30 psi. I was not there for the diagnostic work. This is just the picture of what he sent.

mt_goat

My bet is melted valves.

vital22re

iTrader: (2)

question is... what caused it? Maybe running a sc with no supporting fuel mods? maybe clogged dirty injectors? I've never seen or heard of a 3.4 burning valves. 3.0 yes. i've heard of the harmonic balancer flying off the 3.4's. and of a couple throwing a rod. I'm guessing dirty injectors and lack of fuel mods. He said he seafoamed the motor, then started to notice problems with missing and pinging.

I was at the dealer today picking up more sc stuff and they had the standard thermostat and a trd 160 degree t stat. I wonder if this affects the way the plugs wear in any way shape or form. I was told i need the 170. Maybe i should try the 160 tstat and run 1 step colder plugs as opposed to 2. Thoughts?

mt_goat

That would be my guess. The plugs got too hot, running lean (from lack of fuel mods) increases the heat, ping also. Could have also been a clogged fuel injector or 2. That drivers side is the farthest from the fuel pump and would normally be the first to go lean. I bet that plug came from the end of the fuel rail (closest to the driver). The plugs look like iridium plugs, but the ground strap is not iridium, it probably wasn't even platinum, just a normal ground strap is my bet. They would have worn twice as long had it been a dual ground strap like Toyota recommends for the 5VZ. Here's more on that: https://www.yotatech.com/forums/f2/e...h-bank-177019/

I would not go to a hotter plug, unless you get the temps under control. Of course with those compression numbers what plug to run is the least of that guy's problems now. How many miles did those plugs go?

eddieleephd

could be the Seafoam broke some stuff up and started some major issues to show their heads.
but either way the lack of fuel mods, or the injector of the right coolant can create this issue!
as well it could be that the timing belt is stretched and one bank is off from the other, check the timing marks to be sure they line up right, then if that does not produce any pisitive results pull the heads off and see... A cracked exhaust manifold or improper back pressure can burn valves!!

vital22re

iTrader: (2)

he ran those plugs not even a day. those ik22 were not even a day old. He's taking the truck in on monday for warranty. I'll keep you guys posted as nobody wants to encounter that with their sc 3.4.

mt_goat

OMG!!! Yeah that's an important detail. I figured they had like 40K miles on them. Yeah after a closer look at the pic its obvious they are new plugs!

nacho

You can get the NGK BCPR7ET plug at Advance Auto Parts for $4.59 ea. Best price I've seen anywhere so far.