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Old 03-06-2002, 06:24 PM   #1
scubaracer
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Member#: 4909
Join Date: Mar 2001
Location: North Bend, Washington
Vehicle:
1992 legacy 2.2Turbo
silver sports sedan

Arrow Ignitions, spark plugs & plug wires?

I was wondering if you would get any gains from getting a MSD or Direct hits ignition. what do you think?

also, what is a hotter or colder spark plug?
and, has anyone had bad experience with aftermarket plug wires?

just wonderin'.........thanks
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Old 03-07-2002, 12:45 AM   #2
COwannago
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Give a go with the ol search feature. Many things will pop up, hopefully something good will catch your eye. Happy hunting.

Nick C.
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Old 03-07-2002, 12:50 AM   #3
COwannago
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Okay, I might have come off as a bastard on the previous post, but I did a quick search for you and most of the info on spark plugs was in Factory forced if that helps.

Nick C.
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Old 03-07-2002, 01:07 AM   #4
Eric SS
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Location: 2013 335i, 2014 Q60S
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2000 2.5RS w/ EJ22T
swap and N20. gone. : (

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I'll try to answer your question (although I have done so many times in the past).

1) I am an Autotronics (They make MSD) Distributor and I have had many conversations with MSD about using their DIS-4 system on a Subaru.

Straight from them, they have said that Subaru's ignition system is one of the best they have ever seen and adding a DIS ignition or even any spark plug wires is a waste of money.

MSD is a very good company and for them to tell me something knowing that it will not sell their product says something about their character.

I will always use them on my GM V8 engines but they showed no gains on the Subaru engines so didn't pursue making the DIS-2 or DIS-4 work on our cars because they didn't show any gains. THat's all I have to say about Ignition or Wires for our cars. Wires or ignition is just bling-bling for our cars.

2) Colder spark plugs and hotter spark plugs are actually a very easy concept once you know what to look for. A colder spark plug will not stick out as far as a hotter spark plug (in a nut shell). The hotter a spark plug, the longer the ground strap and electrode are. A colder spark plug will be sticking out less length from where the thread stops.

If you get to hot of a spark plug, you can pick up detonation. That's why you go with a colder spark plug for heavy nitrous and with turbo applications. If you get a colder spark plug, you won't get as fast and clean of a burn because the spark will be farther away from the best point of combustion. This decreases the horsepower of the engine.

3) Like stated earlier, spark plug wires in our cars are for looks only (and some look good) and will not give you any horsepower. Sorry

I hope this helped a little bit.

Eric

EDIT: I'm half drunk and needed to correct some spellign errors
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Old 03-07-2002, 02:46 AM   #5
HndaTch627
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Quote:
Originally posted by Imprezinator
EDIT: I'm half drunk and needed to correct some spellign errors
like that's a rare occurance?? hehe

but in all reality eric is 100% correct...only time i'd replace the wires is when the factory ones take a chit!

jeremy
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Old 03-07-2002, 02:57 AM   #6
Eric SS
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2000 2.5RS w/ EJ22T
swap and N20. gone. : (

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Quote:
Originally posted by HndaTch627


like that's a rare occurance?? hehe

It has been this last month since I am on a diet. I've lost 12lbs. Down to 188lbs. It sucks

Eric
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Old 03-07-2002, 03:27 AM   #7
HndaTch627
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'09 Concours 14 ABS Black

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Quote:
Originally posted by Imprezinator


It has been this last month since I am on a diet. I've lost 12lbs. Down to 188lbs. It sucks

Eric
wow i'm at a hearty 165 as usual
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Old 03-19-2002, 03:56 AM   #8
Josico
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Blue Ridge Pearl

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so, according to you guys... what i've heard about the Subaru OEM wires are bad is false?... if so then that is one less mod i need to worry about and only have to get spart plugs eh?
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Old 03-19-2002, 04:17 AM   #9
outback2.5HO
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Look out for the "tag team" on ignition threads...

Some people do see gains from MSD Igntions on Subarus.
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