tundwgn Posted April 1, 2006 Share Posted April 1, 2006 I've searched my manual, web, LGT.com, but I've not been able to find the recommended gap for these plugs. I ordered them from www.extremepsi.com and it plainly states on that site that they are "not" gapped correctly. Anyone found this information?? I checked them all out of box, they all seemed to be around 0.8mm, but I'm not sure if that's right. Thanks. Link to comment Share on other sites More sharing options...
warnoldscu Posted April 1, 2006 Share Posted April 1, 2006 I installed mine as they came... I was of the impression they were gapped correctly. Though I haven't started my car yet since I'm waiting on the intercooler from TDC... I'll keep my eye out on this thread to make sure I didn't goof. Link to comment Share on other sites More sharing options...
tundwgn Posted April 1, 2006 Author Share Posted April 1, 2006 I was hopin' to put the plugs, Crucial T-stat and 70/30 coolant mix with Water Wetter in tomorrow, but the T-stat didn't show up today. And I'm uncertain about the gap. We'll see I guess. Link to comment Share on other sites More sharing options...
robinlsb Posted April 1, 2006 Share Posted April 1, 2006 The gaps of spark plugs out of the box are frequently wrong. Always check them. .032 is the NGK factory specified gap. On the other hand I thinl the typical subie gap is .30 "Belief does not make truth. Evidence makes truth. And belief does not make evidence." Link to comment Share on other sites More sharing options...
legacy2005 Posted April 1, 2006 Share Posted April 1, 2006 mine were all pregapped, cant rememeber what they were off hand. but i didnt really mess with them due to the fragile tip. Work hard. Play even harder. My Garage Link to comment Share on other sites More sharing options...
tundwgn Posted April 1, 2006 Author Share Posted April 1, 2006 Got NGK One Step Colder's put in this morning. I went ahead and checked the gap as I was pullin' the old ones, I'm glad that I did. One of the new plugs had to be gapped a bit more. The factory plug's were dirty after only 6500 miles or so, I think the dyno run was very hard on my plugs. I still haven't found what they should be gapped at officially, but .032 or .8mm or so seems to be good. If you do change your plugs and have a 5EAT, take note of the Filter located in the hole in the fender behind where battery goes. I think that's a AT filter in there. Gotta do some research when I get time. The hardest one was the driver side closest to firewall, I unhooked plug for Coil Pack and rolled it upside down to get it out, was a bitch, but It will come out of there with some work. Oh yeah, use a torque wrench when puttin' the new plugs back in if you have access to one. Torque should be 15-19 ft-lbs Link to comment Share on other sites More sharing options...
legacy2005 Posted April 1, 2006 Share Posted April 1, 2006 your right the filter there is for the AT, pretty smart if you ask me. easy to get to but not out in the open that some one could mistake it for the oil filter. Work hard. Play even harder. My Garage Link to comment Share on other sites More sharing options...
SC GT Posted April 2, 2006 Share Posted April 2, 2006 IIRC, the correct Subaru gap (at least for the STi) is .03, and the supposed gap out of the NGK box is .032. Link to comment Share on other sites More sharing options...
warnoldscu Posted April 2, 2006 Share Posted April 2, 2006 so what would happen if you didn't change the NGK... is that .002 even noticeable? Link to comment Share on other sites More sharing options...
tundwgn Posted April 2, 2006 Author Share Posted April 2, 2006 so what would happen if you didn't change the NGK... is that .002 even noticeable? Probably not really....but it is to me....knowing there all gapped equally will prevent strain on coils or unbalance. I'd say it's worth checking anyways, someone else's out of box may be off even more than that. Link to comment Share on other sites More sharing options...
robinlsb Posted April 2, 2006 Share Posted April 2, 2006 Yes "Belief does not make truth. Evidence makes truth. And belief does not make evidence." Link to comment Share on other sites More sharing options...
outahere Posted April 3, 2006 Share Posted April 3, 2006 The Subaru spec is 0.7mm-0.8mm for the turbo motor. Link to comment Share on other sites More sharing options...
tangcla Posted May 30, 2011 Share Posted May 30, 2011 5 year old thread dig! Â So are LFR7AIX the commonly accepted colder replacement for the stock NGK ILFR6B plugs? Are they the same as the stock plugs, all things equal, apart from temperature range? Link to comment Share on other sites More sharing options...
MDW25gt Posted July 23, 2011 Share Posted July 23, 2011 Why do you want a colder plug? 5 year old thread dig!  So are LFR7AIX the commonly accepted colder replacement for the stock NGK ILFR6B plugs? Are they the same as the stock plugs, all things equal, apart from temperature range? Link to comment Share on other sites More sharing options...
tangcla Posted July 23, 2011 Share Posted July 23, 2011 Why wouldn't I? As an engine running more power than stock, it's the same cost as grade 6 plugs. Link to comment Share on other sites More sharing options...
robinlsb Posted July 23, 2011 Share Posted July 23, 2011 Why wouldn't I? As an engine running more power than stock, it's the same cost as grade 6 plugs. A colder plug , run on the street, ends up providing less power:lol: "Belief does not make truth. Evidence makes truth. And belief does not make evidence." Link to comment Share on other sites More sharing options...
tangcla Posted July 23, 2011 Share Posted July 23, 2011 Not if it's tuned right.. Link to comment Share on other sites More sharing options...
robinlsb Posted July 24, 2011 Share Posted July 24, 2011 If it's tuned right, it doesn't need colder plugs:lol: "Belief does not make truth. Evidence makes truth. And belief does not make evidence." Link to comment Share on other sites More sharing options...
johnAWD Posted July 24, 2011 Share Posted July 24, 2011 I went 1 heat range colder after doing some mods. My tuner built both 91 octane and e85 maps for me, plugs are still looking good after 35k miles. FWIW I gapped them to .030. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.