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Lindsey Swan
TryHard
QLD
GTT-L

Posts: 214
Reg: 07-2005

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Tuesday, January 02, 2007 - 09:40 pm, by:  Lindsey Swan (Banzaibattlecrazzzy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks Daniel!

So what plugs am i regapping to 0.75...

I drive very slowly around the burbs and give it a fang only occasionally.. so im assuming iridiums will be a better choice for me.

Whats the exact product code for the right plug.
Toan Nguyen
TryHard
VIC
TT

Posts: 153
Reg: 07-2005

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Wednesday, January 03, 2007 - 02:16 pm, by:  Toan Nguyen (Soarer_gt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Just use copper and change them twice as often. With a TT you're gonna burn through spark plugs every 15-20,000 km anyway. The cost to gain ratio for iridiums is pretty bad when you think about it.

Do you want to spend $70 on iridiums where your car will feel awesome for 5000 km and then start slowing down at the 10-15000 km mark or spend $10 on coppers and change them every 15,000 km for the new feeling again.

That said I run a heat range of 7, but heat range 6 should be fine for you.
Braden Murdoch
TryHard
NSW
Cressida 1JZ TT

Posts: 281
Reg: 04-2006

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Wednesday, January 03, 2007 - 02:57 pm, by:  Braden Murdoch (Ribfeast) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I use NGK Platinum plugs, gapped to 0.7mm. BPC something or other I think the part# was. Runs fine, I pull them out for a clean every few months. Never had to replace my spark plugs since.
Lindsey Swan
TryHard
QLD
GTT-L

Posts: 215
Reg: 07-2005

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Wednesday, January 03, 2007 - 03:22 pm, by:  Lindsey Swan (Banzaibattlecrazzzy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Here i come coppers!
Don Bagnall
Moderator
New Zealand
I have WAY less Soarers than Hayden :-(

Posts: 5347
Reg: 05-2005

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Wednesday, January 03, 2007 - 03:26 pm, by:  Don Bagnall (Baggs) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Quick Bert!.......run, the coppers are coming!
Daniel Clarke
Goo Roo
NSW
TT 2.5L 6 cylinder

Posts: 1097
Reg: 03-2006

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Wednesday, January 03, 2007 - 05:51 pm, by:  Daniel Clarke (Dieseltrain) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Im quite happy to run Iridiums. I dont mind paying extra for them. My car has run some good numbers using them, so why change i say:-)
Steven Nanevski
DieHard
NSW
HKS 264/264 Cams are in, Cheering....

Posts: 852
Reg: 07-2005

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Wednesday, January 03, 2007 - 08:20 pm, by:  Steven Nanevski (Imprestik) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I'm running platniums in my TT and have never looked back, 30,000Kms and still going strong after 3 years of use.
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 1871
Reg: 10-2005

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Thursday, January 04, 2007 - 07:14 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Copper doesn't spark anywhere near as well as iridium or platinum.
Paul McLaughlin
Newbie
Rodney
Soarer TT

Posts: 5
Reg: 10-2006

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Sunday, April 15, 2007 - 12:31 pm, by:  Paul McLaughlin (Paulmac) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Why would that be?
Michael Howatt
TryHard
Victoria
4.0 GT-L - V8 - UZZ31

Posts: 139
Reg: 12-2005

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Sunday, April 15, 2007 - 04:34 pm, by:  Michael Howatt (Howatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Here are some different types of Spark Plugs. Better than Iridium?
http://www.nology.com/silver.html
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 2508
Reg: 10-2005

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Monday, April 16, 2007 - 07:01 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Hmm, silver is the best conductor, but I'd it'll tarnish almost straight away in the hot wet conditions of combustion, and then it would be useless. I guess as long as you don't mind pulling them out and cleaning them constantly they would probably be great.
Dave Hart
Goo Roo
Waikato
UZZ32

Posts: 1126
Reg: 08-2005

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Monday, April 16, 2007 - 11:05 am, by:  Dave Hart (Davyboy) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

The tarnish on silver is just as conductive but I'd be more worried about the silver standing up to the temperatures.
Matthew Sharpe
Goo Roo
North Island
JZZ31

Posts: 2511
Reg: 10-2005

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Monday, April 16, 2007 - 11:27 am, by:  Matthew Sharpe (Madmatt) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Dave Hart wrote on Monday, April 16, 2007 - 11:05 am:

The tarnish on silver is just as conductive




Depends on the oxide formed I think, but its more the way the tarnish would affect the arc formed. Some oxides of silver are very resistant to arcing, and an arc is want you want in a spark plug.

Silver's melting point is around 1000c isn't it?
Mike Thomas
Tinkerer
AB
Soarer TT

Posts: 7
Reg: 09-2007

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Sunday, September 23, 2007 - 08:46 am, by:  Mike Thomas (Petcanizzle) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

for a stock 1JZ soarer what am i looking? the NGK iridium iX BKR6EIX? and i dont know what the cold ratings are 6 or 7 etc.. can someone explain or point me to a website since google seems to turn up sweet nothing and the NGK website doesnt have an explanatory section

forgive me (edit) i found one
http://www.ngk.de/Spark_plugs.649.0.html
it explains magnificently with a picture what the heat ratings on NGK plugs mean.

but not how to tell which you will need.

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