i've had nothing but problems with iridium's in turbo'd or s/c'd cars.. always fouling out as you said.. and ive had nothing but great things to say about copper plugs.. so i'd say go for it.. they're not really that expensive anyways:waytogo:
Not to complicate this any more but I use BCPR7ES #6282 on my 2JZ. Anyone know the diff between them? Both copper core and 7 heat range... so maybe just the gap it comes @?Is BCPR7ET #2164 correct?
K22PBR-S are gaped 0.032 from factory, needs to gaped to 0.040 - 0.044I have in hand what Gadget used to sell. Bought em' when I thought I had a spark issue, but it was something else so I'm still rocking the Iridiums just fine. This is what is on the box (three ground prongs- two step colder, can't remember the gap)
Someone else mentioned this to me, the Supra n/a injectors are drop in for our 3.4??
IK20 0.044 and IK22 0.032I thought the one step and two step colder iridium are gapped at .032 also. I have un-gapped IK22s on the truck with no issue. Maybe the idle could be smoother with a larger gap, but I'm not sure. Anyhow as the plugs wear the gap will open up, so time will tell haha.
Go with the 5062s below. They are two ranges colder. My Iridiums didn't last for a tank of gas before they all fouled. The three prong seem to be very resistant to fouling.Alright I currently have the IK22s on my 4Runner. My setup is supercharged, supra injectors, walbro 190, and a unichip tuner. My plugs are only about a month old but they seem to be fouling out already. Truck seems to have significantly less power at times then before. I have been reading that these IK22s can foul out quickly. So what I'm looking for is a two step colder copper plug similar to stock. There is a thread on yotatech about this: http://www.yotatech.com/f2/spark-plug-part-numbers-supercharged-engines-200040/
But several part numbers are tossed around and noone really has a straight answer. Does anyone have experience with two step colder copper plugs that could point me in the right direction?
Thanks for the info.Go with the 5062s below. They are two ranges colder. My Iridiums didn't last for a tank of gas before they all fouled. The three prong seem to be very resistant to fouling.