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  Soarer Central * Mechanical - V8 * Wanting to change spark plugs, any recommendations? Previous Previous    Next Next  

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Sam Atash
Tinkerer
WA
UZZ31

Posts: 93
Reg: 06-2008

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Tuesday, October 14, 2008 - 12:44 am, by:  Sam Atash (Persian_pride25) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

part number: 90919-01178, NIPPON DENSO,PK20R11
90919-01179, NGK, BKR6EP11


Anything better or what do you guys recommend?
thanx
Ben Kelly
TryHard
Wentworthville
v8

Posts: 404
Reg: 08-2005

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Tuesday, October 14, 2008 - 09:21 pm, by:  Ben Kelly (Ace) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

well my original toyota plugs only failed after 17 years and that was after getting water into the housing. So i reckon stick with genuine toyota plugs.
Sam Atash
Tinkerer
WA
UZZ31

Posts: 96
Reg: 06-2008

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Tuesday, October 14, 2008 - 11:01 pm, by:  Sam Atash (Persian_pride25) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

yea true, asked my mate at Toyota parts
and he said the platinums would be a waste of money, so I bought 8 Denso originals for $88 dollars
Damian Ware
DieHard
Victoria
UZZ32

Posts: 754
Reg: 10-2005

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Wednesday, October 15, 2008 - 12:07 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Toyota used Plats in all 1uz's when they were manufactured.
Sam Atash
Tinkerer
WA
UZZ31

Posts: 98
Reg: 06-2008

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Wednesday, October 15, 2008 - 12:31 pm, by:  Sam Atash (Persian_pride25) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

can anyone tell me the difference and advantage of plats, all ive heard is they have better spark and longer life?
Andrew Ferres
DieHard
WA
'90 C-F Celsior V8, '84 Soarer V8, '91 Supra V8

Posts: 966
Reg: 07-2005

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Wednesday, October 15, 2008 - 06:03 pm, by:  Andrew Ferres (Peewee) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

How long a plug lasts depends on how its treated.
The richer the car runs, the shorter the life of the plug. (likewise if its running too lean).

Its usually suggested that 20k the standard from a copper, 100k from a plat, and 120k+ from an iridium.

I doubt any of them produce a better spark to any other.

Most people with turbo cars run coppers and change them ever 5-10k km's because they tend to run richer than NA people and thus have a shorter life span.
Dave Rose
DieHard
wa
uzz31 v8

Posts: 520
Reg: 03-2007

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Wednesday, October 15, 2008 - 06:27 pm, by:  Dave Rose (Sand_groper) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I used iridium (is that how you spell it??)no problems so far ,should last 100ks.
Damian Ware
DieHard
Victoria
UZZ32

Posts: 755
Reg: 10-2005

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Wednesday, October 15, 2008 - 06:39 pm, by:  Damian Ware (Frozenpod) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well not so simple.

Plats are rated to last 100,000km and will work fine for a stock 1uz. You will find they do last longer provided you car is running well or less if it isn't running well.

Iridiums are dyno proven to produce more HP for N/A motors.

For forced induction only copper or Iridiums are suggested (depends what you read) and Iridiums are also dyno proven to produce more HP for forced induction applications as well.

There was a dyno chart posted by Manny for his TT with a huge increase in mid range power and torque by just changing plugs from coppers to Iridiums.

Just keep in mind there are two size electrodes for Iridiums and the smaller one is only rated to lasts 60,000km, that being said my brother did 100,000km on them and they still worked fine.

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