Arbo Posted May 30, 2009 Share Posted May 30, 2009 do they really produce more power then regular ones? Quote Link to comment Share on other sites More sharing options...
evan1242 Posted May 30, 2009 Share Posted May 30, 2009 if you have a 240z, 260z, 280z, or a 280zx, then you want to just use the regular old NGK's. these engines just seem to run better on NGK's than any other type of plug. (this is if you are using the stock ignition system of course) Quote Link to comment Share on other sites More sharing options...
misterZ Posted May 31, 2009 Share Posted May 31, 2009 do they really produce more power then regular ones? I recently swapped my standard NGKs w/ NGK Iridium IX and noticed a considerable difference in performance w/ smoother idle & acceleration. Quote Link to comment Share on other sites More sharing options...
Kash Posted May 31, 2009 Share Posted May 31, 2009 I recently swapped my standard NGKs w/ NGK Iridium IX and noticed a considerable difference in performance w/ smoother idle & acceleration. Was that a Turbo or NA engine? Quote Link to comment Share on other sites More sharing options...
misterZ Posted May 31, 2009 Share Posted May 31, 2009 was that a turbo or na engine? na Quote Link to comment Share on other sites More sharing options...
garvice Posted May 31, 2009 Share Posted May 31, 2009 I recently swapped my standard NGKs w/ NGK Iridium IX and noticed a considerable difference in performance w/ smoother idle & acceleration. Can you clarify the condition of the standard NGK plugs? Were the standard ones new as well, or had they been in the engine for the last 10000 miles? Were the standard ones gapped the same, was it the same heat rating etc? Quote Link to comment Share on other sites More sharing options...
ozconnection Posted May 31, 2009 Share Posted May 31, 2009 Can you clarify the condition of the standard NGK plugs?Were the standard ones new as well, or had they been in the engine for the last 10000 miles? Were the standard ones gapped the same, was it the same heat rating etc? Good points there. Another question could possibly be 'How healthy is the rest of the ignition system?' and perhaps 'What ignition system are you running?' Can you test 'smoother acceleration' on a dyno? What about fuel consumption? Any differences? Any more variables? Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted May 31, 2009 Share Posted May 31, 2009 Iridium and platinum plugs were installed by manufacturers so the cars could "certify" that their cars can go 100,000 miles without needing service to their emission control systems. Nothing more........there's no magic to them. Quote Link to comment Share on other sites More sharing options...
Arbo Posted May 31, 2009 Author Share Posted May 31, 2009 if you did install them, it would harm anything would it? Quote Link to comment Share on other sites More sharing options...
slown280z Posted May 31, 2009 Share Posted May 31, 2009 if you did install them, it would harm anything would it? Other then your wallet if you knock a sensor loose and foul them. Good luck getting them clean afterwards. (Copper NGKs are whats generally seen as "best" for these cars) Quote Link to comment Share on other sites More sharing options...
Mack Posted May 31, 2009 Share Posted May 31, 2009 bosch platinum +4s suck in our cars. I had them on my 83 280ZX NA and it fouled regularly. ran just fine once I went back to NGK Rs. Quote Link to comment Share on other sites More sharing options...
Arbo Posted May 31, 2009 Author Share Posted May 31, 2009 alright good thing i asked Quote Link to comment Share on other sites More sharing options...
misterZ Posted May 31, 2009 Share Posted May 31, 2009 bosch platinum +4s suck in our cars. I had them on my 83 280ZX NA and it fouled regularly. ran just fine once I went back to NGK Rs. I couldn't find Bosch 4s for the Z; they're the best plug I've used in my wife's Corolla and my Nissan Hardbody. Both the Corolla and truck had a slight miss w/ copper and Bosch 2s, the Bosch 4s smoothed it out. I guess it's a matter of preference but I do notice a difference in types of plugs; by far, iridium are best and preferred in my book. I've never 'measured' the performance difference; I don't have to or really desire to as it's that noticeable to me. Just my two cents, that's all. Quote Link to comment Share on other sites More sharing options...
Arbo Posted June 1, 2009 Author Share Posted June 1, 2009 well i just want it to be reliable Quote Link to comment Share on other sites More sharing options...
jtl260z Posted June 1, 2009 Share Posted June 1, 2009 well i just want it to be reliable Iridium and platinum plugs are useless unless you are running a direct ignition system on a fuel injected motor. You will get more reliability out of set of copper NGK's at a much cheaper price. If you want a little more "spark" try running the NGK's without the "R" and a high output ignition system. Quote Link to comment Share on other sites More sharing options...
neotech84 Posted June 1, 2009 Share Posted June 1, 2009 I know we all know this but just to clear up any doubt...... the "best" plugs are mostly based on opinion. unless we see some clear facts, IMHO its all by the seat of your pants/ or if it actually fouls and you know there is a problem. Now we might see a jump in MPG or have the best get up and go ever, but its all very dependant on the rest of the car......... And now i can get off my soap box. Quote Link to comment Share on other sites More sharing options...
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