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Plat should never be used. NEVAR.
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My new AC Delco Irridiums actually say NGK on them.
But put them in and forget about them.
I'm all for less work.Comment
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NGK TR55 or NKG TR6.......10,000 nitrous guys cant be wrong.Comment
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Stock for 3x00 motors is TR55...
What heat range is TR5, TR6 etc and gap? I can't find specs list anywhere.
Thinking maybe one step colder than stock for high compression possibly if needed........
EDIT: http://www.ngksparkplugs.com/docs/te...tnumberkey.pdf bingo.Last edited by IsaacHayes; 10-14-2009, 07:07 PM.sigpic
New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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no need for too much colder on high compression....nitrous yes. tr6 is like a little more than 1 heat range i thought?Comment
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TR55 according to NGK is stock for 3x00, which is range 5, .060 gap.
TR6 is higher heat range 6 (colder plug) and .040 gap. I don't think they make a TR65 which would be range 6 with .060 gap.
I'll try running stock delco plugs but if I can't on 91 octane I may need to try a colder plug. Ideally I should have .040 head gaskets to get the quench from .07 to .05 which would help prevent pre-ignition, but that would also bump compression up to 12.3:1 and probably need a larger cam. All that would cost too much to change so I'm just looking into options... I don't want to have to pull all spark advance on 91 octane, so if I can run a colder plug and run reasonable advance then that is an option I may go to. I'll just re-gap them to .060 if I have to use them. I doubt they will blow out.
Once I get it running then I'll know what I need. Just getting ideas and options here. Cold IAT's are a must as well. No WAI for me, but I can't stand them anyway so that's no problem.sigpic New 2010 project (click image)
1994 3100 BERETTA. 200,000+ miles
16.0 1/4 mile when stock. Now ???
Original L82 Longblock with LA1, LX9, LX5 parts
Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.
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thats real funny my 93 z34 has bosch platinum 4s. my car is outside day in day out, even in the cold freezing temperatures no problems at all, many swear by these plugs. ac delco's are crap. ngk's arnt bad.Last edited by z34gtp383; 10-18-2009, 02:31 PM.In a quiet town full of chevy's, you can hear a FORD rust.Comment
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do you know what you're talking about here? ^^^[SIGPIC]
12.268@117... 11's to come!
turbo 3400: 358whp and 365tq at 9 psi
ASE Master Technician. GM Certified.
http://www.youtube.com/watch?v=7ibU1k8UZoo
http://www.youtube.com/watch?v=GUqJyopd720Comment
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the question asked here is (what are the best spark plugs for a 3400) ?Last edited by z34gtp383; 10-18-2009, 02:49 PM.In a quiet town full of chevy's, you can hear a FORD rust.Comment
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Originally posted by z34gtp383 View Post
Interesting... I won't let a set near mine. I suppose next up is someone saying Frams rock?-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay Leno
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but they DO rock..... they rock the trashcan ALL NIGHT LONG!Originally posted by pocket-rocket View PostComment
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yes frams suck, but dont tell me, your using a k&n right?In a quiet town full of chevy's, you can hear a FORD rust.Comment
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Nope, Purolotor. The K&N is in my airbox.-60v6's 2nd Jon M.
91 Black Lumina Z34-5 speed
92 Black Lumina Z34 5 speed (getting there, slowly... follow the progress here)
94 Red Ford Ranger 2WD-5 speed
Originally posted by Jay LenoComment
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good choice! same here
In a quiet town full of chevy's, you can hear a FORD rust.Comment
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