RE: Why you shouldnt run platinum plugs in the neon!
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RE: Why you shouldnt run platinum plugs in the neon! - 5/20/2005 6:30:13 AM
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lik00usn
Posts: 20
Joined: 9/22/2004
From: VA Beach
Status: offline
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What's the part number for the NGK's?
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2001 Neon R\T Silver SE, debagged, Eibach Pro Springs, Iceman CAI, Iceman Header... MUCH MORE TO COME!!!
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RE: Why you shouldnt run platinum plugs in the neon! - 5/21/2005 3:41:24 AM
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nippondrifterae111
Posts: 176
Joined: 1/22/2005
Status: offline
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Im jap and that is offensive! Not Kool but i forgive you this time!
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RE: Why you shouldnt run platinum plugs in the neon! - 5/21/2005 8:24:40 AM
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mechengineer201
Posts: 88
Joined: 5/16/2005
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I never said either were bad - just different - I like different..
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RE: Why you shouldnt run platinum plugs in the neon! - 5/22/2005 7:44:22 AM
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71RoadRunner
Posts: 9542
Joined: 7/28/2003
From: United States
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I had only Champion Platinums in my '99 Neon R/T the entire time I owned it, 3 years+, and it ran flawless. I hear people always ragging on Champion spark plugs, yet I have always used them from the $.99 cheapies to the Platinums without any problems what so ever. I have tried many other brands from Bosh to Accel U-groove to Splitfires and I have yet to see any improvement in performance, so I'll stick with my good ol' Champions, that has always been Mopars plug of choice and it is mine as well. And yes I am aware that more recently they have also used Bosch and NGK, but they have always used Champions.
I think the greater problem in the ignition system is the sad plug wires, they have between 1,500-3,200 ohms resistance and they're not even a foot long. Everyone that has the 2.0L DOHC or the 2.4L DOHC need to switch them over to MSD Super Conductor plug wires, they smooth out the idle, they actually give it a stronger meaner sounding exhaust (most don't believe this until they get them and then they are shocked that they could make that kind of a difference) and increase horsepower and fuel mileage. They have less than 50 ohms per foot of resistance and since none of the plug wires are even that long, they are between 20-40 ohms resistance which is thousands of times better than stock.
Combining the MSD Super Conductor plug wires with a set of Champion Platinum spark plugs is a great and flawless combo. I know this for a fact since I've ran this combo in my '99 R/T for the 3+ years I owned it and now with my '04 SRT-4 and they are both still running great. In fact, my '99 R/T with the MSD wires and Champion plugs also had/has the Mopar Performance CAI, cat-back exhaust, chrome header, motor mounts, bobble strut and PCM (computer) as well as front strut tower brace, MSD coil and REX motor mount inserts on it and with a few drag runs mixed with in town and freeway driving averaged 35+ MPG. My SRT-4 with the MSD wires and Champion plugs also had the Mopar Performance cat-back exhaust, STS and BOV as well as K & N Typhoon CAI, MSD coil, 2 OCC's, Prothane race motor mount inserts and front and rear strut tower braces on it and with the same type driving as the R/T, with the exception of more spirited driving, it got 21.9 MPG the one time I checked it. It would get better if I could keep from enjoying the turbo, but it now has the Mopar Performance Stage 1 on it too.
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71 Plymouth Roadrunner 440 Auto. Modified
04 Dodge SRT-4 2.4L DOHC Turbo Intercooled 5-spd. Modified
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RE: Why you shouldnt run platinum plugs in the neon! - 5/22/2005 7:42:26 PM
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ewetho
Posts: 930
Joined: 11/23/2004
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Well in a stock ignition system I have found that platinums are just fine if you follow manufacturers specs. Not the plug manufacurer but the Car. I owned several other cars before my neon and when you open the gap up too far they go white ashy and run like crap. I could not figure this out until I looked at the car specs and found theat every one of the books from aftermarket spark plug manufactuers sugested 0.044" gap but the owners manual said 0.039"-0.043" which is not what BOSCH, NGK, DENSO, CHAMPION, SPLIFIRE, AC DELCO, AUTOLITE, Etc. said. But when I gapped the same plugs down to 0.039" and fires up the cars they ran great, and plugs burned tan like they should. Hmmm.
As for the +4 same problem as an overgapped plug. Not surprising considering the source said I should gap at .044 not .039 and thus there pregapped assembly was too wide.
If you are getting white plugs and they are the correct plug, try gapping to the small end of the manufacturers range and see if any improvements are had.
As far as the plug wires being 1500-3500Ω, this absolutely normal as the wire should be about 5-6000Ω per foot. Which is actually funny because champion plugs lately average around 12-120,000Ω per plug not the 5-6000Ω's like they should be. So to go out of your way to eliminate a couple of thousand ohms just to put back way more in a sub-standard plug is rediculous. Most sets of NGK or DENSO plugs are in the realm of 5-6000 Ωs.
The true reason for platinum plugs is that you need a lower arc over voltage to fire the plug and they also wear A LOT slower allowing for longer change intervals. If set up properly platinums in a stock ignition will probably give less HP (1-3HP) and also fewer misfires. If gapped to say BOSCH's recommendations if out of the stock realm will not yield acceptable results.
Happy motoring!
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RE: Why you shouldnt run platinum plugs in the neon! - 
