copper, platinum or iridium spark plugs
24 June 2005, 02:11 PM
#1
\m/ ^_^ \m/
Thread Starter
copper, platinum or iridium spark plugs
BKR7E, PFR7B or BKR7EIX's, pro's and con's? i was under the impression that copper plugs give a more intense spark than the other two, but don't last anywhere near as long, and seeing as im after performance over longevity, would coppers be best for my 5k a year mileage?
bearing in mind copper plugs are under 3 quid each too
bearing in mind copper plugs are under 3 quid each too
26 June 2005, 11:19 AM
#4
Scooby Regular
Join Date: Oct 2001
Posts: 1,833
Likes: 0
Received 0 Likes
on
0 Posts
Theoretically coppers will give you the best performance/spark but they may cause you problems as they don't last at extreme conditions (boost-temps) for long time.
Platinums are a good choice but as iridiums last more and have better conductivity I'd bet on them (I already have the STI labeled BKR7EIX in my PPP'd WRX MY03).
STI also uses them as uprated plugs currently replacing the PFR7B they used in the past.
Platinums are a good choice but as iridiums last more and have better conductivity I'd bet on them (I already have the STI labeled BKR7EIX in my PPP'd WRX MY03).
STI also uses them as uprated plugs currently replacing the PFR7B they used in the past.
26 June 2005, 04:25 PM
#5
Ecu Specialist
Iridiums are not good, they certainly don't last and frequently fail, least thats my experience (and I would have lost my shirt if I was a betting man). Platinums are the best compromise, PFR7B's changed every 10k on "normal" mods, I have to change mine every 5k as they get very tired beyond that.
STi's are not "that" highly tuned relatively.
bob
STi's are not "that" highly tuned relatively.
bob
Trending Topics
27 June 2005, 08:22 AM
#8
Scooby Regular
Join Date: Oct 2001
Posts: 1,833
Likes: 0
Received 0 Likes
on
0 Posts
You makes me worry now!
What you mean short life 10K, 20K, 40K or what?
I had the factory platinums with no problem for 35K km and changed to iridiums recently although my car is PPP'd the last 25K km.
JIM
What you mean short life 10K, 20K, 40K or what?
I had the factory platinums with no problem for 35K km and changed to iridiums recently although my car is PPP'd the last 25K km.
JIM
27 June 2005, 11:32 AM
#9
\m/ ^_^ \m/
Thread Starter
some good feedback, thanks 
could you get away with coppers with every oil change running 1.4-1.5bar boost?
could you get away with coppers with every oil change running 1.4-1.5bar boost?
04 November 2005, 10:39 AM
#14
\m/ ^_^ \m/
Thread Starter
they were crap, the electrode was too fat on them to get the gap spot on (.5mm), misfired worse than before, so ditched them
04 November 2005, 10:40 AM
#15
\m/ ^_^ \m/
Thread Starter
if you really want to try them i got them from my local motor factors, ordered them in for me same day
Thread
Thread Starter
Forum
Replies
Last Post
