Best Sparkplugs to use?
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Best Sparkplugs to use?
I am getting ready to swap out my spark plugs and wires in a couple weeks. What spark plugs would you suggest? This if for a 91' SS with a EJ20G swap.
Thanks
-Devan
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-Devan
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Matt would probably be able to answer this best.
I'm going to say an NGK Platinum with the same heat range as a WRX.
I'm going to say an NGK Platinum with the same heat range as a WRX.
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DLC wrote:Matt would probably be able to answer this best.
I'm going to say an NGK Platinum with the same heat range as a WRX.
NOOO!!!
Platinum is a VERY bad idea in turbo motors, as it retains heat and can cause some nice detonation...
Just the stock NGK plugs specified for the Legacy are the best thing imho
Nick
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1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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I was just thinking of replacing my spark plugs in the next few months too (I'm running a '92 L Legacy).
I think I heard once that the OEM spark plugs were in fact NGKs, but I'm not sure (I know little to start with). These are the OEM ones I was looking at:
http://www.subaruparts.com/catalog/?section=414
Would those be ideal, or should I go out and grab some NGK branded ones?
Also, what would be good wires to use as replacements? I was looking at these OEMs:
http://www.subaruparts.com/catalog/?section=914
Thanks!
I think I heard once that the OEM spark plugs were in fact NGKs, but I'm not sure (I know little to start with). These are the OEM ones I was looking at:
http://www.subaruparts.com/catalog/?section=414
Would those be ideal, or should I go out and grab some NGK branded ones?
Also, what would be good wires to use as replacements? I was looking at these OEMs:
http://www.subaruparts.com/catalog/?section=914
Thanks!
-Nick
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1986 FC Mazda RX-7 GXL Coupe 5MT 155,000 miles - Summer cruiser
1992 BC Legacy L Sedan AWD 5MT 272,000 - Wish you the best
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i dont like platiums. my idel sucks with them. ive got ngk type-v platinums.
"NGK Type-v IRIDIUMS cold 3 are some of the best you can get. thats what the fools down at ralli-tek use some time.
i would of got some but i had a hard time finding some plus i was in a hurry too so.
"NGK Type-v IRIDIUMS cold 3 are some of the best you can get. thats what the fools down at ralli-tek use some time.
i would of got some but i had a hard time finding some plus i was in a hurry too so.
Andy
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mods: too much to list, lost track after $16,000
91 ss champagne - Rip
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NICO I WRX U wrote:ngk copper the very best.
For the first time, I agree with Nico...
![Shocked :shock:](./images/smilies/icon_eek.gif)
But he is very right...simple old NGK coppers work very well...and I know many who swear by them, because they are a tried and true design, and they are like $2 a piece
![Very Happy :D](./images/smilies/icon_biggrin.gif)
Nick
1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Are the OEM plugs NGK coppers? It's just that I was at the NGK site and didn't see 'copper' anywhere.
If I'm running stock would the OEM plug wire set be fine, or would there be a significant advantage from using a different one?
If I'm running stock would the OEM plug wire set be fine, or would there be a significant advantage from using a different one?
-Nick
1992 BC Legacy L Sedan AWD 5MT 272,000 - Wish you the best
1998 BK Legacy L Wagon 5MT 234,000 miles - RIP
2002 SF Forester S Wagon 5MT 215,000 miles - Current winter sleigh
1986 FC Mazda RX-7 GXL Coupe 5MT 155,000 miles - Summer cruiser
1992 BC Legacy L Sedan AWD 5MT 272,000 - Wish you the best
1998 BK Legacy L Wagon 5MT 234,000 miles - RIP
2002 SF Forester S Wagon 5MT 215,000 miles - Current winter sleigh
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I'm getting ready to do a tune up on my 91' N/A legacy. It's been about 3 years since i've last changed the plugs and wires.
I think i have NGK regular or iridium.
Wat's the difference between NGK iridium/platinum vs laser/non laser welded plugs? Since i've got a N/A engine would it make a noticeable difference if i used a cold or hot plug?
Could i go E3 plugs? Relatively new but they r supposed to increase hp while decreasing fuel consumption so says their video.
Their home page http://www.e3sparkplugs.com/index.htm
Either way both seem a little pricey...
Thanks in advance.
John
I think i have NGK regular or iridium.
Wat's the difference between NGK iridium/platinum vs laser/non laser welded plugs? Since i've got a N/A engine would it make a noticeable difference if i used a cold or hot plug?
Could i go E3 plugs? Relatively new but they r supposed to increase hp while decreasing fuel consumption so says their video.
Their home page http://www.e3sparkplugs.com/index.htm
Either way both seem a little pricey...
Thanks in advance.
John
if you want to waste your money, sure; the "fuel consumption reductions" you may gain would be easily wiped out over the cost of the plugs.
as said in this thread before, nothing beats NGK COPPERS. get COPPER plugs. $15 plugs are not better than $2 plugs, in fact they're often worse.
as said in this thread before, nothing beats NGK COPPERS. get COPPER plugs. $15 plugs are not better than $2 plugs, in fact they're often worse.
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Subaru went out of their way to engineer the engine to run best the the OEM plugs, they know what they're doing.
-Nick
1992 BC Legacy L Sedan AWD 5MT 272,000 - Wish you the best
1998 BK Legacy L Wagon 5MT 234,000 miles - RIP
2002 SF Forester S Wagon 5MT 215,000 miles - Current winter sleigh
1986 FC Mazda RX-7 GXL Coupe 5MT 155,000 miles - Summer cruiser
1992 BC Legacy L Sedan AWD 5MT 272,000 - Wish you the best
1998 BK Legacy L Wagon 5MT 234,000 miles - RIP
2002 SF Forester S Wagon 5MT 215,000 miles - Current winter sleigh
1986 FC Mazda RX-7 GXL Coupe 5MT 155,000 miles - Summer cruiser
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Point taken
but nobody's said anything about iridium vs platinum.
As far as i can tell from google, iridium and platinum are similar. They both are corrosion resistant and have higher service intervals. Denso claims that iridium is better than platinum for it's tolerance to heat claiming that their iridium plugs will tolerate 700 degrees C more than their platinum counterparts. Is that all that's different or is there more?
I did a similar search on google for laser vs non laser and i got that the laser plugs are better because there's less electrical resistance. So when the plug's electrical requirements are lowered u'll get a stronger spark assuming the wires are good. Seems plausible and since i'm staying with NGK they have laser welded iridium and platinum plugs designed to meet or exceed OEM specs.
I believe that there's more than just getting coppers and i wanna try something new. Most likely i will try the laser welded iridium plugs from NGK and let u guys know how they do.
John
but nobody's said anything about iridium vs platinum.
As far as i can tell from google, iridium and platinum are similar. They both are corrosion resistant and have higher service intervals. Denso claims that iridium is better than platinum for it's tolerance to heat claiming that their iridium plugs will tolerate 700 degrees C more than their platinum counterparts. Is that all that's different or is there more?
I did a similar search on google for laser vs non laser and i got that the laser plugs are better because there's less electrical resistance. So when the plug's electrical requirements are lowered u'll get a stronger spark assuming the wires are good. Seems plausible and since i'm staying with NGK they have laser welded iridium and platinum plugs designed to meet or exceed OEM specs.
I believe that there's more than just getting coppers and i wanna try something new. Most likely i will try the laser welded iridium plugs from NGK and let u guys know how they do.
John
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Copper is a better conductor and it's cheap. You're not even running boost or high compression that increases the resistance to spark, but it's your money.
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555BCTurbo wrote:I don't think I would refer to them as fools...92ss satinsvoice wrote: thats what the fools down at ralli-tek use some time.
maybe you though
holy fuck that was intense.. i almost shit my self.
Andy
94 L n/a 5spd, Rip
92 ss burgundy, weekend toy - owner since 2006
mods: too much to list, lost track after $16,000
91 ss champagne - Rip
93 L wagon - Sold (in the family)
97 OBW LTD - Sold (in the family)
88 Leon GL Hatchback - DD
94 L n/a 5spd, Rip
92 ss burgundy, weekend toy - owner since 2006
mods: too much to list, lost track after $16,000
91 ss champagne - Rip
93 L wagon - Sold (in the family)
97 OBW LTD - Sold (in the family)
88 Leon GL Hatchback - DD
platnium & iridium just give you longevity. But as steve mentioned, copper is a better conductor
Josh
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I run NGK BKR7E11, gapped at .028. 22+ psi daily and no issues. I change them about every 3k but a good amount of boost will do that to plugs. I've heard good things about J-gap plugs from some big tuners, but haven't looked into them yet.
When mine start to get worn I can feel the onset of misfires and its time to change them. Magnecore wires helped some, as Belkin wires are junk. I wish I had an option for a stronger coil pack/igniter.
When mine start to get worn I can feel the onset of misfires and its time to change them. Magnecore wires helped some, as Belkin wires are junk. I wish I had an option for a stronger coil pack/igniter.
→Dan
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