What Platinum Plugs are People Running in there Strokers?

[RailBoy]

Hello All..... I was advised to run Platinum Plugs in my 2180 for they have a wider Heat Range than the normal plugs.

I went through the forums for info but there was not really any info there, also what I heard in the Forums that were avaliable is that Platinum Plugs work good with a somewhat Lean Condiction when it comes to jetting. So, before I jump right into jetting for my plugs I have now read great really but I have a slight Popping at times, I figured I try the Platinum Plugs first.

Yea, on my jetting I may need to go up a touch richer on my idles, but the popping is so suttle that new plugs maybe in order for what I am running now are stockers... So I like to give Platinums a try. RB
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[quote="smitty24"]"HELP, I ported my own heads and now have fire coming out my ass" .[/quote]

[modok]

Platinum plugs are mostly for longer life.
The only time I'd use a platinum plug in a VW is if the plug has stripped out and I have to do an in vehicle repair; try to make that one plug last until the rest of it wears out.
Otherwise use a copper core plug and change once a year.

[RailBoy]

Hey Modok, Happy New Year by the way....

On plugs, I had heard that the Platinums have the broader heat range, this is why I was thinking of trying to run them. Don't mind pulling them every now and then to Antisieze, but in all, I am looking for a plug to run in my new engine.

Oh, the new engine is a 2180, 8.5-9 to 1 CR, Engle 120 Cam with Dual DRLA's.

Point, I had also heard what I posted above, that the Platinums run better with a slight lean jetting. See, I have a slight lean jetting set-up, my current plugs read great, have a slight soot at the muffler, and every now and then have some slight quiet popping. I think it is my idles need to be bumped up a notch, but just have not done it. Also, I have put on 1,000 Miles on the engine with this set-up and it rolls.

Point again, what plugs should I try? I know what CB Told me on the phone, then there is some info in the threads, but see varing responces from all kinds of angles from peeps out there.

So, yea at a loss now, totally confused for I can't find the old info from when I worked on my Street Rail. Sucks, plus since I sold the Rail, I just can't go out and pull one to get the plugs numbers... RB
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[quote="smitty24"]"HELP, I ported my own heads and now have fire coming out my ass" .[/quote]

[mark tucker]

once a year......how effing stupid.

[RailBoy]

What is once a year Mr. Mark, pulling the plugs to Antiseize so they do not gaull the threads????? RB
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[quote="smitty24"]"HELP, I ported my own heads and now have fire coming out my ass" .[/quote]

[mark tucker]

waste of time, money,more wear on threads,a lot more of a possiabuilty of something falling into the cylinder, and a cheepass using junk for plugs .tune the motor so it doesnt need plug change and use better plugs. I must be doing somethen rong again....10 yearold plugs, smooth idle, no miss, no pop,buzzes up everytime with out any issue, no fouling, threads been in there since the heads were made 14 years ago.......yupIm doing something rong....and Im cheep I wont spend good money on once a year plugs,but 23x as much for a ....lifetime plug set. im stupid......my valve covers are vented , my case is painted clear and my cotton filters work.

[RailBoy]

Yep, that is what I am working on as well, a good clean running engine.

Since winter hit though and no garage, it is a bear to work in the elements.

But yea, I hope to get my engine to your level, mean, if I can keep a set of plugs long term, cool....

I just need to get my engine were I am happy with it, currently I am like 95% close... And man does it run well, I am rather happy with it for what I have into it parts wise and all, just needs the final tweaking... RB
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[quote="smitty24"]"HELP, I ported my own heads and now have fire coming out my ass" .[/quote]

[Casting Timmy]

Do some searching about antisieze on plugs, some don't recommend that. Just a drop of oil off the dip stick works great, but there are other things you can use too.

[ps2375]

I went back to the Bosch Platinum's that my father installed some 2+ decades ago(although the car sat for 20yrs of that). I bought and installed a set of Bosch Supers, and thought I'd throw the Platinums back in, didn't notice any difference between either type. I'm thinking the Plat's will hold up better with the HEI ignition that I have in it.

[modok]

Mark your right I probably "could" put in platinum plugs and run it till it's dead. I probably could. But I'm not going to.
A platinum plug can get contaminated just as easy, or actually, easier than a conventional one. If there is a little detonation, a little contaminated gas, carbs out of tune,..........then it will kill your fancy spark plug anyway.
I got used to that with 2cycles and/or running race gas, it with a lot of modified engines it was just a matter of time before a plug would need changed, platinum plugs were for STOCK cars and guys that are too lazy to change them, but I suppose none of actually applies to my daily driver and it's been a long time since I got a bad batch of gas, so it's just habit.

I have 45 year old cylinder heads with the original threads intact! One drop of oil changed yearly. I'll stick to my habit for now. But If one plug ever does strip out I'll put a platinum plug in it and leave it be. I would!!

[RailBoy]

Now that we are all talking Platinums, any referals on what to run in a stoker 2180 with like 8.5-9 CR?

Mean, yall do know what yall have seen out there for Platinums, my thing is I am at a loss and don't need a drag plug but rather a mid performance upgrade from stock... RB
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[quote="smitty24"]"HELP, I ported my own heads and now have fire coming out my ass" .[/quote]

[Bruce]

[Scott Novak]

Platinum plugs are really only beneficial for marginal ignition systems.

With good ignition system copper core plugs will have a higher voltage inside the spark plug gap and have a higher power spark to ignite the fuel mixture more quickly under all engine conditions.

You can use a larger spark plug gap for improved performance. However, if you open the spark plug gap for best performance you will also need watch the spark plug gap and readjust it more frequently as the gap increases.

Spark plugs can also develop seal problems between the insulator and the thread body. Replacing spark plugs more often reduces the chance of a seal failure.

As long as you change the spark plugs when they are cool, use a thread lubricant and torque them properly, changing spark plugs once a year is just not going to have a significant effect on the life of the spark plug hole threads in the head.

Scott Novak

[Scott Novak]

And of course use a good quality thread chaser every time you change spark plugs.

Scott Novak

[mark tucker]

gotta love internet exsperts. so all the new cars have marginal systems....awesome.
they do work realy good for low cr that tends to load up at low rpm..no more loading up and fouling. and they also seem to work good on 13.8 cr with 2x4 tunnel ram big roller cam&msd....for long time....and this and that.the only thing I didnt like them in was....my 2 stroke dirt bike.
but yes I do agree my petronix is a marginal system and they work awesome with it too.go figure. but Ive only used a few hundred sets since the 80's. in oh so many different types of racing,marine,street&even lawnmowders.
with that said I have seen some that didnt work!!! mostly due to the installer breaking the plug uppon instaltion 99% of the time when there was a plug issue. Hmm I wonder why they make spark plug sockets.

[raygreenwood]

[mark tucker]

wow you mean you pry on the center electrode to gap your plugs???? I stand corrected. get the cheep plugs.I give up.

[raygreenwood]

[HotStreetVw]

Great post Ray, very informative.
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4inBhore
50 Split - 2724cc NA. Haltech injected
62 Notchback - 2542cc Turbo WIP

[mark tucker]

well im back I have changed oh soamny oe burnt out coiuld it would make you puke, and nun had iridium or platinum plugs.not a single one. Im pretty sure they do make it a lot easyer on the coil.......although ford's coil packs are shit and I dont have a clue if anything will help them.