Spark Plug Question, For Turbo Setup ONLY

[trrbo_tc]

hey guys,

so i got some copper v-power NGK sparkies, 2 step colder

my question is .....

Gapping !

for all you turbo people, did you gap your spark plugs ?

if so ? what spark plugs are you using and how much did you gap them at ?

[Krdshrk]

.... You don't want copper plugs... the tC takes Iridium Only!

You want some Denso or NGK 1 or 2 step colder plugs. I mine are Denso IK24's (2 stepp colder) gapped to .032.

[trrbo_tc]

why would the car only take iridium plugs ?

i have had non iridium plugs in the car before awhile back before i was turbo.

to my knowledge, iridium is a type of plug used for fuel economy cars, or cars that have good mileage. or increase mileage

[fightinsk8ers]

scion says so....

[Krdshrk]

It says so right on the engine and in the manual.

And yes, the tC engine is a fuel economy engine.... 2AZ-FE

[Butters]

It says so right on the engine and in the manual.

And yes, the tC engine is a fuel economy engine.... 2AZ-FE

you do know the E dont mean economy right?

2-2nd generation
AZ-Engine family
F-Economy narrow-angle DOHC
E-Electronic Fuel injection

[Binder86]

Plus iridium is super strong.

[Krdshrk]

Ah yeah.... but the F in FE is for Fuel Economy.... I just take it to say FE because every engine has EFI now.

[THansenite]

Yep, Iridiums only. I plan on picking a set of one step colder plugs for my install. :up:

[trrbo_tc]

so where can i order these things at ... anyone have a place online they order from ?

[THansenite]

You should be able to get them at any auto parts store. If they don't have them, they can order them.

[Krdshrk]

I got mine from garage1217.com

[THansenite]

I am not sure if this is 100% correct or not, but I think I remember hearing that because the tC's run hotter exhaust gas temps, the iridium plugs are more resilient to the heat.

[Krdshrk]

Yes they are - iridium plugs run colder. Mine are 2 steps colder than stock, too