Wondering what heat range, gap and type of plug you'd reccomend on a freshly installed stage 3. I'm thinking NGK 4306s. Also where should I adjust the WGA to for the first time getting on it? The shorter arm will increase boost, and longer will decrease it right?
Are you running an s3 kit with toys or without? NGK 4306 gapped at .032 (if you have spark blowout... lower the gap) The PCM will adjust boost accordingly (as long as your running PCM controlled boost). I do not know what the set preload is on the stock S3 wga or where it should be at since on my wife's SRT-4 we are running the AGP S3 wga. Yes, the shorter the arm the higher the boost.... the longer the arm the lower the boost.
If you're running a stock stage 3 WG, don't adjust it. It's been preset already. U can use 4306's or you can use Iridiums. I've ran both and seem to not make a diff. 4306s are cheaper by far. Just change them about every other oil change. (Seriously)
^I agree. The NGK 4306's life is short. I'm constantly changing them and people think I'm nuts. I've ran Iridiums and the only problem I've found is having to be careful in gapping them. I say 4306 since they are cheaper and don't hurt the pockets and easier to gap without worrying of damaging them.
I agree with the posts above. NGK 4306 gapped at .035 (MOPAR specs) or less .032 depending on boost. Don't mess with the Stock S3 WG, no matter waht you do with it (stock position or short to max) it is not going to change anything if you have toys with all the selenoids. THE PCM is fully controlling the boost. If you don't have toys and you are connected directly (turbo to WG) then it is a different story. Try not to boost more than 20psi with pump gaz. Use race fuel (or W/I) to run higer boost.
I don't have toys for now, the wastegate was at the shortest setting, which would be the most boost when I got it. So I added maybe 4 millimeters so hopefully it won't spike real high or something. One other thing what heat range for the plugs? Or does the "4306" refer to the heat range?
4306 is the part number/reference number. NGK 4306 is what you want to go with. They are one heat range colder then stock.
If you wanted to do that then you would need to go with Iridiums since they are 2 steps colder then stock and one step colder then the 4306. I will say my wife's DCR S3 with almost every bolt-on (need to get a W/I kit still) is running the NGK 4306 and we haven't had no problems or even the need to upgrade to 2-step colder spark plugs. The Iridiums aren't cheap and can be damaged easily. Most Stage 3 owners or previous owners will tell you NGK 4306 as the spark plug choice to use.
i completly disagree. my car always ran like crap on the ngk's. i would burn through them in about 3k miles, get ridiculous sputtering at idle and blow out. horrible horrible plugs. for a stock turbo they work fine (even though they don't last long). but s3 LOVES irridiums. every single s3 owner i know runs denso's and do it because the car runs a ton better on them. i've been using the ITV22's, but most s3 owners are fine with the ITL20's. you need to go down one heat range for about every 100hp over stock. so most s3 owners are fine with the 20's (one heat range colder). you do not have to gap irridiums generally. denso's at least you don't. they come pre-gapped, and i've never had a problem with that gap. the ngk irridiums need to be gapped, but then again those are horrible pugs imo/ime so i don't even bother with them. denso's are well worth the money.
Both of our SRT-4's do well with the 4306. Majority of owners run those or the Champions. Amy, your so far the only s3 owner here disagreeing. Every SRT-4 is different though. ITV22 seems to be the ones some SRT-4 owners are running. Price of said ITV22 Denso spark plugs are around $40 from what I've gathered. Granted it could be cheaper or more elsewhere. Supposely they come pre-gapped at .032 and usually don't need to be changed for a year... just some more info I gathered from owners running these plugs.
so just because everyone here uses the ngk's that makes me wrong? tell that to the 10 or so s3 owners i know that use denso's because all our cars run better on them. or even the stock turbo guys that run denso's as well, because the cars run better on them. what works for one person doesn't always work for everyone, but when probably 75% of neon owners i know are using denso's, we can't all be idiots wasting our money. and you don't change your spark plugs to get hp, you change them because the car runs more efficiently. whoever that is that you quoted above is a fool if his only concern is gaining hp on a spark plug. that's stupid.
Bah, what makes you wrong is completely disagreeing with me just because YOUR car hates NGK's. Majority rules and majority uses NGK's. Second to that would be Champions. Granted the Denso's are nice and all the only difference is that changing the NGK 4306 multiple time within one year totals to the same price as a set of Denso's that supposely only need to be changed once a year. You base your findings on what your locals are doing and instead of your own personal experience. If the Denso's were so great then a lot more owners would be using them instead of the 75% of owners you know in a central area. Most owners in my area use NGK 4306... I guess that makes them idiots for going the "cheap" route? You don't see me bragging about it. 10 or so S3 owners compare to the amount of S3 owners out there running NGK 4306 doesn't suit your comparison as the number of S3 owners running Denso's compare to NGK 4306 is low. That "fool", to you, I quoted is another S3 owner. Obviously he tried both and still said NGK 4306. I base my findings on experience... not what my locals run or use. I'm not going to argue over spark plugs... I've said my take on the subject and I'm done.
