Which plugs for S13

[Adam]

Which grade plugs are recommened for a CA running 15psi

Oh yeah and was it 15 BTC on the timing side?

It's been a while since i messed with s13's

 

[PhatBob]

Probably a colder grade Iridium plug.

I got my NGK iridiums from http://www.sparkplugs.co.uk loads cheaper than all the HKS ones.

Rob

 

[Adam]

sorry i meant which NGK plugs as my work are NGK stockists

 

[PhatBob]

sorry i meant which NGK plugs as my work are NGK stockists

You can still use the Website to look up the part number you need and use the xref button

NGK BPR5E Standard Preset £2.7

Alternative part details:
Denso IW16. Iridium centre electrode Preset £9.9
NGK BPR5EIX Iridium centre electrode Preset £6.84
NGK BPR5EV Gold palladium centre Preset £5.94

You'd want a cooler plug, most use a 7 (BPR7E), I'm using BKR8EIX on my S14

 

[Mitch]

I think BCPR7ES's gapped at 0.9mm are what you want, mate

 

[SteveC200]

You can still use the Website to look up the part number you need and use the xref button

NGK BPR5E Standard Preset £2.7

Alternative part details:
Denso IW16. Iridium centre electrode Preset £9.9
NGK BPR5EIX Iridium centre electrode Preset £6.84
NGK BPR5EV Gold palladium centre Preset £5.94

You'd want a cooler plug, most use a 7 (BPR7E), I'm using BKR8EIX on my S14

Standard plugs are 6's not 5's.

For 15psi use either....

BCPR7ES-11 but regap them to 0.9mm.
PFR7B.
BCPR7EIX.

 

[Ratdat]

I'm using Denso IQ24's in my S12 at 14psi (S13 engine). No problems to report and they are still looking good as new

 

[Adam]

Thanks for the replys guys thats all the info i needed