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Location:
Madrid - Spain
Registered:
August 2002
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1G-GTE and Platnum Plugs
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Fri, 22 August 2003 03:46
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My 1G and I assume every one elses came with platnum plugs in it. They are showing signes of wear and I guess need replacing. Performance is down a little too.
My question is....apart from supposedly lasting 100,000km what are the advantages of using platnum plugs. Would I see any performance change by using standard plugs or say a splitfire type electrode.
I am not overly concerned about the price (about $16 each) just interested and if I can get better performance using a different electrode, why not. What are people using on other turbo motors??
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I supported Toymods
Location:
south of the big smoke
Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Fri, 22 August 2003 12:14
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anthony, i have heard u get better performance outta no platnum plug however dont last no where near as long
i still have the orginal ones that came from japan on my cut 
still kicking pretty strong
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Location:
Malaysia,Kuala Lumpur
Registered:
July 2002
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Re: 1G-GTE and Platnum Plugs
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Sat, 23 August 2003 00:42
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Platinum...NGK-r types are pretty good, Same here with the half cut plugs from Japan. HKS/Denso...just needs some cleaning
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Location:
Sydney
Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Sat, 23 August 2003 03:17
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I got copper and they have lasted 15,000ks...
for 23$ for all 6 I'm gunna go change em soon..
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Sat, 23 August 2003 14:30
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When they are in their ideal conditions (like the factory engines they come in), platinum plugs produce good power and last a long time. People tend to have a lot of problems with them in modified setups.
The copper ones seems to be more tolerant of the conditions.
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Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Sun, 24 August 2003 02:06
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just use nkg type r's
$3 a pop.. change them with every oil change @ 5,000 kms..
my mate thinks this is better than using platinums and i am sure that u wont leave plats in there for 100,000 ks anyway before changing
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1G-GTE and Platnum Plugs
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Sun, 24 August 2003 21:33
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Yep, thats what I was thinking.
Currently they are NGK platnums and the electrodes have worn down a bit. I doubt they are any alder than 50,000km because they were put in when they conversion was done.
I think I might try some standards out and see how they go.
Has anyone tried the splitfire type plugs, I am interested to see if anyone has seen any difference with them.
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Location:
Cabramatta, NSW
Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 00:20
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Lucky bastards with air-to-air setups.
I use platinums only 'coz to change my sparkplugs, I have to take the Duck Pond off. And that's a major PITA!
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 00:21
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Hehehe, hadn't thought about that 
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 03:03
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What heat range is everyone using. I guess if you are running a lot of boost, you might be using a slightly colder plug.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 04:52
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most stock toyota NA motors have 5 recommended, tho someone said the other day that the 2TG has 6.
i'd recommend for anyone driving hard with NA to go to a 6.
for turbo motors, for normal driving, i'd say 5 (for a granny) or 6 if you drive with the boost, but not flogging it.
if the 6 is too warm then try 7, but 7's will prolly foul a bit when driving in city traffic (ie idle and low rpm with no boost)
with high boost, you may find that you need 7's and have to live with them being too cold for slow driving, but at least the will burn clear when you give it some 
so, easy chart would be.
5 stock NA, maybe stock turbo
6 hard driven NA or stock to medium turbo
7 hard driven turbo
Cya, Stewart
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 04:58
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Thanks Stewart,
I think they are 6's in it now, they seem to be working fine, so I may as well stick with them. I will give the standards a go though.
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 05:12
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by 'type r's'
you mean the resistor plugs??
anyone tried the non-resistor ones??
the resistor is meant to reduce the electrical interference from sparking, by reducing the current, ie spark energy, that goes thru the plug. by using a non-resistor plug, you will get higher spark energy... but may get some electrical interference in the sensor signals to the ECU.
you might be able to use non-resistor plugs anyway, or may just need to put a sheilded cable for the sensor wires....
thoughts?
Cya, Stewart
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 05:31
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What effect would it have on the coil if you were to use a non resister type plug on a coil that is supposed to use a resister type? Wouldn't it increase the current pulled through the coil??
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 06:01
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hmm, looks like the resistor is 5k ohms...
compares to the resistance of a 0.8mm air/fuel gap, it is not very much, and on further thought, it may not reduce plug current that much (since the voltage is in the vicinity of 20-40,000 volts)
NGK claim it does not affect plug performance much, but that is in production motors. resistor plugs were introduced to reduce electrical noise that would affect other things like radio reception, when you go past hospitals, and ECU signals...
imagine if holden released a commondore that affected TV reception as it drove past!! they would get their asses sued!! heh heh.
as long as the noise doesn't affect the ECU, it doesn't matter which you use. if you can't hear the noise thru the radio, chances are it won't affect the ECU unless you have sensor signal cables running close to spark plug leads (which you shouldn't ever do anyway!!)
dunno, i might invest in some R plugs in my car and see if i can notice a difference! i'm just abotu to do back to back -S and -Y
comparison...
Cya, Stewart
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1G-GTE and Platnum Plugs
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Mon, 25 August 2003 06:05
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and the coil?? the current thru the primary winding is controlled by either the points dwell or the ingitor dwell, and whatever limiters they have. (jaycar HEI has a nominal 5A coil current limit but you can adjust it higher ).
having lower resistance plugs will not affect the primary coil winding, but will reduce the effective resistance of the secondary coil winding. since the secondary coil 'releases' the energy induced by the primary coil, i don't think there would be any negative effects in using a non-R plug.
also compared to the spark plug gap, and also the gap between rotor and dizzy cap, if you have a dizzy, the spark plug resistance is not that great a change.. (and leads!! they are around 5-20k ohms anyways, so an extra 5k ohms is not that big, unless you have coil per plug and copper plug wires.. but you would have sooo much RFI then!! like an F1 motor )
ramble, ramble...
Cya, Stewart
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