when to use colder plugs? - Subaru WRX Forum
 
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post #1 of 14 Old 02-03-2006, 07:21 PM Thread Starter
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when to use colder plugs?

I have done a search for this answer and can't find an answer. I know when you raise boost, but is that any increase or a certain level? I am running stage2 AP/turbo-back/upipe at 16.7-17psi. Thanks for the help in advance
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post #2 of 14 Old 02-03-2006, 08:36 PM
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For your set up I would stick with regular plugs ( I use Denso Iridium plugs) you don't need to go colder until you start upgrading to bigger turbo's.
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post #3 of 14 Old 02-03-2006, 09:44 PM
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Hmmmm what do you think I should use? I'm at stage 2 right now, but next week the following mods will all be installed the car and it will be getting protuned:

helix up
perrin divorced downpipe
borla hush
cobb AP
Momentum EJ540T turbo (flows 580 cfm)
sti pink injectors
walboro feul pump
turboXS tmic

Btw, any other no brainer mods I should throw on there before the protune? I want to get the best bang for my buck without having to keep getting retunes.

- Sean
- 2005 WRX Wagon, Stage 2
▼SbiΣ Mi▼
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post #4 of 14 Old 02-03-2006, 10:03 PM
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Yes with that setup you can go with a colder plug.
The only thing I can think of you might want to do is inter-cooler hoses if the TMIC doesn't come with them and a turbo inlet hose.
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post #5 of 14 Old 02-04-2006, 12:57 AM
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Quote:
Originally Posted by Ian
Yes with that setup you can go with a colder plug.
The only thing I can think of you might want to do is inter-cooler hoses if the TMIC doesn't come with them and a turbo inlet hose.
The TMIC came with a silicone Y-pipe, not sure about the turbo inlet though. Which plugs inparticular would you suggest i invest in?

- Sean
- 2005 WRX Wagon, Stage 2
▼SbiΣ Mi▼
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post #6 of 14 Old 02-04-2006, 01:02 AM
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I've always used NGK plugs, one step colder in my Talon. You can't go wrong with NGK.

My car is well, it's like 10 lbs of shit in a 5 lb bag...

<------ Click to see what I'm workin' with. ;)
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post #7 of 14 Old 02-04-2006, 02:52 AM Thread Starter
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Thanks Ian, I really appreciate the info!
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post #8 of 14 Old 02-04-2006, 03:21 AM
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Quote:
You can't go wrong with NGK.
+1. I've always used NGK plug in any motorcycle I've had, and I've had at least 2 mechanics say they are great.
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post #9 of 14 Old 02-04-2006, 04:07 PM
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Stick with the NGKs.
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post #10 of 14 Old 02-04-2006, 07:03 PM
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I use Denso Iridium plugs and I have had no problems
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post #11 of 14 Old 02-04-2006, 10:34 PM
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Can I buy these plugs from the usual places? I.E. autozone, kragen, etc. Or should I look elsewhere?

- Sean
- 2005 WRX Wagon, Stage 2
▼SbiΣ Mi▼
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post #12 of 14 Old 02-04-2006, 11:14 PM
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I got mine from a local performance shop, I'm not sure if Autozone ect. has them.
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post #13 of 14 Old 02-11-2006, 12:22 PM
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Quote:
Originally Posted by BiggSean
Hmmmm what do you think I should use? I'm at stage 2 right now, but next week the following mods will all be installed the car and it will be getting protuned:

helix up
perrin divorced downpipe
borla hush
cobb AP
Momentum EJ540T turbo (flows 580 cfm)
sti pink injectors
walboro feul pump
turboXS tmic

Btw, any other no brainer mods I should throw on there before the protune? I want to get the best bang for my buck without having to keep getting retunes.
good luck with the fuel pump install. you gotta drop the tank on the 05's
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post #14 of 14 Old 02-11-2006, 12:28 PM
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Quote:
Originally Posted by hulksmash
good luck with the fuel pump install. you gotta drop the tank on the 05's
ACK! I thought it was accessible through the car via a trapdoor. Can anybody else confirm this? If you have to drop the tank i'm going to have my mechanic do it.

- Sean
- 2005 WRX Wagon, Stage 2
▼SbiΣ Mi▼
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