kopke Posted February 13, 2011 Share Posted February 13, 2011 My Legacy is geting all grown up and is gona hit the 60K mile in a few months and when that happens it's time to changes some that i don't know whats cold in the engine. When that's done it's aperantly a good time to change the spark plugs cus the engine has to be removed fore that. Now my question is. Are aftermarket spark plugs any better? Link to comment Share on other sites More sharing options...
subie3429 Posted February 13, 2011 Share Posted February 13, 2011 I wouldnt put in anything other than NGK's in it. These cars seem to do better with them, than others. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 14, 2011 Share Posted February 14, 2011 X2 NGK's same to be what work the best. I learned that on high HP Honda's. Get them from FredBeans, a vendor on here. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
Tygerr Posted February 16, 2011 Share Posted February 16, 2011 x3 on the OEM NGK's. I ran some NGK's that were supposed to be oem equivalent from Autozone and I noticed reduced performance and a slight drop in mpg. I didn't run them for very long. Link to comment Share on other sites More sharing options...
mwiener2 Posted February 16, 2011 Share Posted February 16, 2011 I also find that it is easiest to pull the engine to change the spark plugs on these cars My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
Leonardo Posted February 17, 2011 Share Posted February 17, 2011 Yeah, no kidding! I'm paying the dealer to do it. Also, going one step colder with the NGK 2309 (LFR7AIX) Link to comment Share on other sites More sharing options...
apexi Posted February 17, 2011 Share Posted February 17, 2011 Spark plugs are one of those things I always stay OEM with. Seems like anytime people switch to a non-oem plug, they just have issues. If they don't have issues, they don't experience any benefit from the non-oem plugs. The only exception is if you're tuned and have to go colder, even then i'd still stay with the oem brand, same center electrode material and # of ground electrode(s). Link to comment Share on other sites More sharing options...
johnAWD Posted February 17, 2011 Share Posted February 17, 2011 I've stuck with NGK for nearly all of my modified turbo cars. I'm currently at 1 step colder in my tastefully modified LGT. Link to comment Share on other sites More sharing options...
Max Capacity Posted February 17, 2011 Share Posted February 17, 2011 x3 on the OEM NGK's. I ran some NGK's that were supposed to be oem equivalent from Autozone and I noticed reduced performance and a slight drop in mpg. I didn't run them for very long. All NGKs are the same no matter where you buy them. I wonder why you had issues ? We ran NGK's from Advance Auto Parts in the race Honda. No issues. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
PoisonousBeef Posted February 17, 2011 Share Posted February 17, 2011 i wouldnt put in anything other than ngk's in it. These cars seem to do better with them, than others. +1 Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted February 17, 2011 Share Posted February 17, 2011 With the proper u-joint and short extensions, I have absolutely no problem changing spark plugs on these cars. I can get the drill on the socket extension to zip them out and back in very quickly. Isn't that bad if you are methodical. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
Leonardo Posted February 17, 2011 Share Posted February 17, 2011 Do a write-up? Link to comment Share on other sites More sharing options...
CCType-S Posted February 17, 2011 Share Posted February 17, 2011 with picture Link to comment Share on other sites More sharing options...
FocuS Posted February 17, 2011 Share Posted February 17, 2011 I'm also running NGK one-step colder plugs on my stg. 2 engine. I got my plugs form sparkplugs.com since they usually have good coupons available online. They have been in for 15K and no issues. I use a similar method as ClimberD to remove and install my plugs. It is a pain since they heads are so close to the engine-bay walls but its do-able if you don't rush the job too much... Just my .02 but far preferable to paying the dealer $$$$ for such a simple operation! Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted February 17, 2011 Share Posted February 17, 2011 Alright next time I do it I will try to remember to take some pictures. Which might not be that long from now because they are gapped wicked narrow. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
mwiener2 Posted February 17, 2011 Share Posted February 17, 2011 x3 on the OEM NGK's. I ran some NGK's that were supposed to be oem equivalent from Autozone and I noticed reduced performance and a slight drop in mpg. I didn't run them for very long. check the box.... i bet you had a -11 at the end of the part number My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
Max Capacity Posted February 17, 2011 Share Posted February 17, 2011 If I remember right, that's the gap. -11 = .041" 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
mwiener2 Posted February 17, 2011 Share Posted February 17, 2011 yeah, that's about twice what it should be for performance and .010 over the factory spec My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
ClimberDHexMods Posted February 17, 2011 Share Posted February 17, 2011 That can be misleading if people don't know what you are talking about. .020 is not necessary or beneficial to change to if you have no ignition problems at a wider gap. [CENTER][B][I] Front Limited Slip Racing Differentials for the 5EAT now available for $1895 shipped, please inquire for details! [/I][/B][/CENTER] Link to comment Share on other sites More sharing options...
Max Capacity Posted February 17, 2011 Share Posted February 17, 2011 That can be misleading if people don't know what you are talking about. .020 is not necessary or beneficial to change to if you have no ignition problems at a wider gap. I was going to add but deleted it from my last post. On honda's we would close the gap as we increased boost. On the stock ignition we were down to .017" at 25psi on the 1.6L single cam at425whp. With a M&W Pro-14 box we were at 0.19" at 35psi 586whp. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
mwiener2 Posted February 17, 2011 Share Posted February 17, 2011 We see spark blow out as low as 20psi on E85 with 0.030 or higher. We've never had a complaint from a customer about idle or low load situations with plugs gapped at .020 Most cars get about 0.022-0.024 with no issues My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
Tygerr Posted February 18, 2011 Share Posted February 18, 2011 All NGKs are the same no matter where you buy them. I wonder why you had issues ? We ran NGK's from Advance Auto Parts in the race Honda. No issues. Do you mean to say all NGK spark plugs are similar regardless to part #? I can assure you that not to be the case. I believe Autozone simply recommended a plug that wasn't quite compatible. They don't always know what they are talking about. I run NGK TR6's on my other vehicle at times for tuned nitrous runs, which are one step colder then my Motorcraft OEM plugs. check the box.... i bet you had a -11 at the end of the part number You are correct. The OEM plugs I use (recommended from Subaru) are NGK FR5AP-11 which I believe are common for the 2.5i. These are what were initially installed in the car from the factory and I've had really good performance/fuel economy from them. The plug Autozone gave me was an NGK BKR5EGP. The Subaru didn't like them. They didn't even carry the oem part #. The cheapest I've found the plug is on Amazon for about $7 bucks a piece. The dealer wants $16 a piece. Link to comment Share on other sites More sharing options...
OutbackXT05 Posted February 18, 2011 Share Posted February 18, 2011 My car is about to hit the big 60k also and just out of curiousity what does it usually cost for subaru to change the plugs? Link to comment Share on other sites More sharing options...
Tygerr Posted February 18, 2011 Share Posted February 18, 2011 My car is about to hit the big 60k also and just out of curiousity what does it usually cost for subaru to change the plugs? Approximately $16 a plug x 4 = $64 in parts. 1hr labor? = $75 dollars? Total = Way, way too much! Link to comment Share on other sites More sharing options...
OutbackXT05 Posted February 18, 2011 Share Posted February 18, 2011 geeze so about 150ish give or take hu? That is a bit on the pricey side for plugs Link to comment Share on other sites More sharing options...
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