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Old 11-03-2009, 03:33 PM   #1
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Question What spark Plugs are better?

I have heard Autolites are good. Any others? Motorcraft? Platinum or Copper? Or does it really matter what kind?
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Old 11-03-2009, 04:19 PM   #2
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Autolites FTW

My DIE HARD Ford buddies will tell you the MotorCrafts are the way to go-

Copper or Platinum? Depends one what you are doing with them...
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Old 11-03-2009, 05:48 PM   #3
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autolites work fine, copper for best spark. Platinum last longer, but don't combine platinum with an MSD ignition.
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Old 11-03-2009, 06:05 PM   #4
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ngk for anything you run nitrous on
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Old 11-03-2009, 10:08 PM   #5
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School me... What's the deal with Platinum and MSD Ignitions? I think I have heard this before.
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Old 11-03-2009, 10:24 PM   #6
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Any platinum plug I've EVER ran on a V8 caused it to miss terrible.. Those were designed for 4 bangers.
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Old 11-04-2009, 01:20 AM   #7
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I guess I've never ran into it because I haven't ran them...

You ;earn something ever day though.
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Old 11-04-2009, 10:14 AM   #8
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Quote:
Originally Posted by Ourobos View Post
Any platinum plug I've EVER ran on a V8 caused it to miss terrible.. Those were designed for 4 bangers.
That's close to the dumbest thing I've ever read here.

I like Motorcraft coppers.
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Old 11-04-2009, 10:19 AM   #9
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Hence Sarcasm

4 Bangers and V-8 have are a completely different engine all together- ddin't you know. Especially in the ignition department! HAHAHA

Although I have heard people make comments about Platinums and MSD. Anyone want to explain that one to me- seem kinda far fetched, but crazier things happen all the time.
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Old 11-04-2009, 10:28 AM   #10
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My experience is that keeping the plugs fresh and good condition will result in good service. When I was racing, there were some brands that performed better than others (lower ET, longer life, etc), but changing camshaft, heads, etc would lead to another brand that ran better. So, my recommendation is that unless you are able to actually measure performance differences in brand to brand or design to design, just simply plan on making them a part of your upkeep program.

On my early 289 stuff, I normally found that the Nippondenso, that looked suspiciously like the Accel plugs worked best. I also used Bosch. Motorcraft, Autolite/Fram, and AC performed satisfactorily. Champion typically did not fair as well. But brand to brand differences can also be based in the heat ranges being slightly different too. All sorts of things can feed in to the equation. On my drivers I typically change out once a year. On project stuff, it may be once every 6mos or so. On my race car I would start the season with a fresh set and oil. Then about mid season, when ET's began to drop off I would put in a fresh set, and change the oil again.

Fresh and new is the sure bet.

a plug for a 4 cylinder versus 8 cylinder! The cylinders do not how many neighbors they have.

When platinum plugs first came out (circa '84), we would get returned sets all the time. we always attributed the issues to non adjustable gap and heat range problems. we took back more than few for sure.

as they began coming more and more as original equipment, the problems began going away as the engineers (auto company and spark plug company)began getting a better handle on the designs and coverage.

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Old 11-04-2009, 10:30 AM   #11
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Quote:
Originally Posted by PGreenSVT View Post
That's close to the dumbest thing I've ever read here.

I like Motorcraft coppers.
Ever ran them? If not, you're the dumbest ape on earth.. Give them a try, jackass.

First few threads from a simple search for 'platinum' :

Why stay away from platinum spark plugs? gt40p
Bosch Platinum Spark Plugs (flame)
Spark Plug recommendations -- Anyone know about the Bosch Platinum +4's?
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Old 11-04-2009, 11:08 AM   #12
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Autolites WERE a good choice .... until they started making them in China. Now I run NGK or Motorcraft
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Old 11-04-2009, 11:50 AM   #13
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I run autolite 104 coppers.

anyone know the NGK equivalent?
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Old 11-04-2009, 03:26 PM   #14
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Motorcraft
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Old 11-04-2009, 05:40 PM   #15
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Quote:
Originally Posted by CNCOX
School me... What's the deal with Platinum and MSD Ignitions? I think I have heard this before. .
from:
http://www.msdignition.com/forum/showthread.php?t=3016
msdtechsupport2:
"We do not recommend using any platinum or any other “hype” plug when using the MSD system as problems can occur. Platinum plugs can retain heat and cause pre-ignition problems; they also have small electrodes that can burn up prematurely due to the added heat of the MSD system..."
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Old 11-04-2009, 10:35 PM   #16
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Awesome, that's what I wanted to hear.

Learn something everyday. I always heard to stay away from them, just never bothered to learn why.


thanks
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Old 11-04-2009, 10:42 PM   #17
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Quote:
Originally Posted by Ourobos View Post
Ever ran them? If not, you're the dumbest ape on earth.. Give them a try, jackass.

First few threads from a simple search for 'platinum' :

Why stay away from platinum spark plugs? gt40p
Bosch Platinum Spark Plugs (flame)
Spark Plug recommendations -- Anyone know about the Bosch Platinum +4's?
You DO realize that all of the V8s Ford has made in the last decade or so have come with Platinum sparkplugs, right?

Try using a narrower brush when you make a comment next time, it'll save you some headaches.
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Old 11-04-2009, 10:47 PM   #18
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You do realized Ford hasn't put a pushrod V8 in a Mustang in the past decade also, correct? This is a Mustang site, last I checked. Try a platinum plug on one and see for yourself, or join the other knuckle dragger.
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Old 11-04-2009, 10:51 PM   #19
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Thanks guys for the replies. I think I will give the Motorcraft ones a try. The ones in it are the Bosch Plat 4 plugs. I have not heard great things about using these in Foxes, but what I heard could be BS. Who knows.
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Old 11-04-2009, 10:53 PM   #20
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Quote:
Originally Posted by Ourobos View Post
Ever ran them? If not, you're the dumbest ape on earth.. Give them a try, jackass.

First few threads from a simple search for 'platinum' :

Why stay away from platinum spark plugs? gt40p
Bosch Platinum Spark Plugs (flame)
Spark Plug recommendations -- Anyone know about the Bosch Platinum +4's?
I don't see the part where they only work on 4 bangers.
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Old 11-04-2009, 10:55 PM   #21
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A generalization.. I've never had a problem with them in a 4 banger.
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Old 11-04-2009, 10:58 PM   #22
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I used platinum's on my mainly stock 91 5.0 and then used NGK platinums when I switched over to cobra intake, gt40 heads and e-cam. Never had any issues with 55K total miles b/w both combos.
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Old 11-04-2009, 11:04 PM   #23
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platinum plugs are crap, but the number of cylinders has nothin to do with it. they are for mild performance motors in the average car where the owner just wants a plug that last long while providing adequate spark. copper arcs much better for performance
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Old 11-05-2009, 12:51 AM   #24
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OMG! I forgot.. I have had experience with Platinum 4's... Holy shat they suck arse.
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Old 11-05-2009, 11:17 AM   #25
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Accel U-Groove. I use bosch platinum's in my dd. Not to hyjack but anyone use E3's?

You also are not supposed to run platinum's with boost.

BTW I have NGK platinum's in my 94 cobra....thats pushrod....thats modified.....it's not a 4 banger.....it runs fine???
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