Bosch Spark Plug Break Down

**jameswkr** · 11 March 2009, 13:41

FWIW - I did a write up here in Dec '05 with my experience of trying alternative copper plugs...

**Error404** · 11 March 2009, 13:47

Denso Iridium plugs are well respected in ricer circles... I had some IK24s in my old S14 which worked well.

**S2central.net** · 11 March 2009, 13:49

I remember that OK - I'm not advocating at all that we all rush out to try alternative plugs. I just don't believe the F5DP0R are suitable for the big monster installs - I have no evidence - just gut feel.

**jameswkr** · 11 March 2009, 13:50

Oops..here it is :-

http://www.s2forum.com/forum/showthread.php?p=133402&page=2

JP · 11 March 2009, 17:25

Originally posted by merlin's S4

I tried a set of the Denso Irridium plugs, don't know which part # but the S4 didn't like them at all!!

Iridium plugs don't seem to like turbo charged or nitroused cars. don't know why they just don't from past experience. They seem to breakdown and cause misfire issues irrespective of heatrange.

**tigg** · 11 March 2009, 17:41

o my god i'm reading posts about blody plugs when i got a hot girly next to me on sofa, just off to get a gun to shoot meself.

Bosch Spark Plug Break Down

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