LXOGOOD

Can you tell me what type of spark plug you are using with your F.I. setup. Any problems with it. Thanks guys

Ken

DaveGS4

iTrader: (2)

Ken,

Info on what I'm running below
https://www.clublexus.com/forums/sho...highlight=plug

LXOGOOD

So Dave, since the install of the NGK BKR7-EIX, the car is running fine?

DaveGS4

iTrader: (2)

Yeah, have had no problems related to the plugs. I had an incident this weekend that I think is alternator / voltage regulator related (more as I get more details about what went wrong) but plugs have been find.

bluelex

Ken you got these for your gs3 and they worked nice? impressions?

Dave are they only for gs4's or they can work for our cars aswell?

TLW

still using stock ? no problems so far

DaveGS4

iTrader: (2)

I seem to recall on the TM's that the plugs were the same for both engines (surprised me when I heard this), can't say for sure for this application.

LXOGOOD

Thanks Dave... Cmon F.I. guys... what plugs are you running. Denso, NGK, Stock??? It's my understanding that you should be running a colder plug with F.I setups... I'm curious what everyone is running with their setup.

morris

iTrader: (2)

stock for me had no problems.

Dr.G

iTrader: (1)

Denso Iridiums for me LXO....

jtanoyo1

If the standard old school cheap copper plugs are fine for the 600hp+ supra guys, it will be fine for you too bro!

rominl

iTrader: (4)

i actually agree on this. i forgot where i read it already, but it was on the is300 or supra i believe, where they are running crazy numbers but still just on the normal plugs. they said that shouldn't be the problems that you worry about.

again i just read it. i never really study that much on fi

morris

iTrader: (2)

I thought I had read a few threads where people switched from the OEM plugs and encountered problems. Just becuase the Supra guys are doing it doesnt neccessarily mean we can, remember we have those tempermental computers and such to deal with.

jtanoyo1

You probably read it on mkiv.com. Those guys are running such a highly tuned engine puking out mega hp that their plugs usually foul up within 2000-3000miles. Getting copper plugs are just economically more sound than the more expensive iridium plugs that will need to be replaced during the same duration anyway....

LXOGOOD

Guys, I'm really confused on this.. Some of the major tuners like SRT, Turbo East, Power House Racing all supply a 1 step colder plug with their kits. Is it because the kit is for the 2jz motor and it needs a colder plug? After doing a search on many forums, it seems like the NGK 3330 is a very popular spark plug for boosted GS/IS vehicles... Your thoughts? Maybe the GS400 has such a solid built motor that it can handle the extra heat from going F.I. thus can use the stock spark plug with no problems