PT Cruiser Forum  
Advertisements
       

Go Back   PT Cruiser Forum > 2.4L Turbo Forums > Turbo Performance

PT Cruiser Forum

Advertisements
Why niot platinum plugs in GT Turbo?

 
Like Tree10Likes

Reply
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old 29 Jul 2016, 04:55 pm
Carnut's Avatar
Senior Cruiser
 
Join Date: May 2016
Location: Wichita, Kansas
Posts: 1,131
Default Why not platinum plugs in GT Turbo?

Why not platinum plugs in GT Turbo?

If they are recommended by factory?

and gapped appropriately?
__________________
George H. McDowell
Wichita, Kansas
mailto:carnut@carnut.com
http://www.carnut.com/
FB https://www.facebook.com/george.c.mcdowell
My 2005 PT Cruiser GT Convertible Project

Reply With Quote
  #2 (permalink)  
Old 29 Jul 2016, 05:54 pm
Obsessed Cruiser
 
Join Date: Sep 2001
Posts: 27,744
Default Re: Why niot platinum plugs in GT Turbo?

Don't think the factory recommends them. Supposedly the turbo runs too hot for them.
Reply With Quote
  #3 (permalink)  
Old 29 Jul 2016, 06:34 pm
Handy_Cruiser's Avatar
Obsessed Cruiser
 
Join Date: Oct 2013
Location: Arkansas
Posts: 10,264
Default Re: Why niot platinum plugs in GT Turbo?

From what I've been able to find out, many platinum plugs use a platinum plated wire as the positive electrode. It appears that the platinum plating on the electrodes on some brands of platinum plug tend to degrade more when installed in turbocharged engines.

It's unclear whether this happens because there is more heat or if there is just more oxygen during some part of the compression cycle. But this idea has enough traction that some manufacturers don't recommend these plugs in their turbocharged engines.

I've found no clear guidance about "double platinum" plugs. With these, the wire is a platinum alloy with a purer plating of platinum over it. And it's not clear about using iridium plugs either. Some seem to be made of a solid iridium alloy and some are just plated.

For me, I returned to using standard copper plugs in my turbo PT's. I use the NKG brand plugs in just about all my vehicles.
MJKnight likes this.
__________________
Reply With Quote
  #4 (permalink)  
Old 29 Jul 2016, 07:43 pm
quicksilverdon's Avatar
Obsessed Cruiser
 
Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: Why niot platinum plugs in GT Turbo?

The story I had heard is that the higher temperatures in a turbo combustion chamber cause the platinum electrode to delaminate - no such alert about iridium or problems with platinum on N/A PTs.
__________________
"Anti-intellectualism has been a constant thread winding its way through our political and cultural life,
nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge."
Isaac Asimov"

'05 Limited Turbo Lite, (Silver, of course)4-wheel ABS, Sunroof, Spoiler. Mods: E&G Classic grill, K&N FIPK, BTG duals, rear lowered 1.5", LED washer lights, $20 catch can, Aoogah horn, Weatherflectors, Sunroof Deflector, Fuzzy Dice, rear logo flames, rear pinstripe graphic, Gen3 Taillights, rear sway bar, hood struts, Strut bar.
Traded in '02 Silver Touring Edition w/87,000 miles
Reply With Quote
  #5 (permalink)  
Old 30 Jul 2016, 01:27 am
Carnut's Avatar
Senior Cruiser
 
Join Date: May 2016
Location: Wichita, Kansas
Posts: 1,131
Default Re: Why not platinum plugs in GT Turbo?

well dad gum, I'm having a hard time wrapping my head around this.

Just don't understand how platinum is actually worse in a turbo situation.

Guess I'm gonna be a guinea pig on this and try them out and see what happens. I'm not planning any performance upgrades or looking for any increase in performance, just doing new MSD wires, NGK plugs and intake gaskets as kind of a maintenance thing.

New plugs are cheap enough I can replace them if they don't work out.
__________________
George H. McDowell
Wichita, Kansas
mailto:carnut@carnut.com
http://www.carnut.com/
FB https://www.facebook.com/george.c.mcdowell
My 2005 PT Cruiser GT Convertible Project

Reply With Quote
  #6 (permalink)  
Old 30 Jul 2016, 11:42 am
Busted_PT's Avatar
Obsessed Cruiser
 
Join Date: Jan 2012
Location: Beckley, W.V.
Posts: 13,883
Default Re: Why not platinum plugs in GT Turbo?

Quote:
Originally Posted by Carnut View Post
well dad gum, I'm having a hard time wrapping my head around this.

Just don't understand how platinum is actually worse in a turbo situation.

Guess I'm gonna be a guinea pig on this and try them out and see what happens. I'm not planning any performance upgrades or looking for any increase in performance, just doing new MSD wires, NGK plugs and intake gaskets as kind of a maintenance thing.

New plugs are cheap enough I can replace them if they don't work out.
You can't gain HP with plugs or wires. You can only recover what available HP your engine has. But longevity is probably what diffrences between types. They all feel great when you first put them in.
SPLNeon likes this.
__________________

03 Dream stock___________________________ 04 Touring turbo lite stock_________ 02 Touring stock_____________________ The "Three Amigos"
__________________________________________________ __________________________________________________ ___________Performance, Body and Service, OEM

This Is my project page.
http://www.ptcruiserlinks.com/forum/...oject-1-a.html

This is a great read from one of our own! Badglas
badglas.blogspot.com
Reply With Quote
  #7 (permalink)  
Old 30 Jul 2016, 12:01 pm
SPLNeon's Avatar
Fanatic Cruiser
 
Join Date: Sep 2014
Location: Canada
Posts: 711
Default Re: Why niot platinum plugs in GT Turbo?

When I first got my gt cruiser, the local auto parts store gave me a set of them, as soon as I read the reviews on turbocharged engines and the slight possibility of problems, I pulled them and threw good ol champion coppers in.
__________________
THE UNDISPUTED KING OF THE PARKING LOT

Competition's paying the price.

03 PT GT. DSI canned tune, Weight redux, MH Racemaster Slicks/Rota Slipstream 15" 11.95 at 118.41mph 1/4 mile
96 SOHC Neon Turbo
08 CSRT4. Realtune MS1K v1 pcm stg0 NSRT4 Injectors.
Reply With Quote
  #8 (permalink)  
Old 03 Aug 2016, 07:55 pm
mjb457's Avatar
Fanatic Cruiser
 
Join Date: Oct 2005
Location: Bucks County,PA. USA
Posts: 951
Default Re: Why niot platinum plugs in GT Turbo?

Champions Regular plugs work best per factory as others have stated here... platinum plugs too hot--make sure gap is correct---really makes big difference.
Reply With Quote
  #9 (permalink)  
Old 04 Aug 2016, 08:20 am
Veteran Cruiser
 
Join Date: Aug 2015
Location: Lake Wales, FL
Posts: 4,690
Default Re: Why niot platinum plugs in GT Turbo?

Just use the recommended Champion copper plugs. The engineers use them for a reason, not just because it's what was lying on the work bench at the time of assembly. And gap them at .042.
__________________


Aspire to inspire before you expire.
Reply With Quote
  #10 (permalink)  
Old 04 Aug 2016, 10:52 am
Fk5 Fk5 is offline
Senior Cruiser
 
Join Date: Jul 2011
Location: Colesville, MD
Posts: 1,816
Default Re: Why niot platinum plugs in GT Turbo?

No reason to be a guinea pig. I'm sure the car will run fine with them. The issue, is exactly what was said, they are easy enough to change, so why spend the extra money?

The plugs are not going to make power. In the old carbureted days, plugs were fuel fouling regularly because cars are never in tune for all situations. Fuel injected cars will run much cleaner and longevity became much more important. Especially when you are dealing with cars that require manifold removal or worse - I think some of the GEN IV Camaros almost required engine removal - to change plugs. IIRC, the purpose of platinum plugs was that they would last longer. The platinum erodes slower than regular copper plugs

As stated here, I had heard that the platinum coating would chip off under high heat/boost conditions. It is better to just use normal plugs and change them more often, but I have used platinums on my TT Stealth because it is a bitch to change them and we never boosted high enough for it to matter. In 180K miles I think we changed them once.
__________________
2003 GT 5 speed
162,000 miles
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Copper or platinum plugs for turbo Jimbo Tech & Performance Forum 6 13 Feb 2012 06:42 pm
Platinum plugs on a turbo? bobdole369 General PT Cruiser Discussions 12 27 Aug 2010 12:12 pm
platinum plugs airevac19 Tech & Performance Forum 5 21 Apr 2004 11:30 am
another question re platinum plugs pingber Tech & Performance Forum 7 31 Aug 2003 12:55 am
Platinum Plugs Not Tex Tech & Performance Forum 10 28 Jun 2002 07:12 pm


All times are GMT -5. The time now is 05:22 am.




Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
LinkBacks Enabled by vBSEO 3.6.0 PL2 © 2011, Crawlability, Inc.
vB.Sponsors