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Iridium spark plugs #675176
28/11/20 03:42 PM
28/11/20 03:42 PM
Joined: Nov 2016
Posts: 86
Dorset
J
Jads Offline OP
Just Getting Started
Jads  Offline OP
Just Getting Started
J

Joined: Nov 2016
Posts: 86
Dorset
Hi everyone. A simple question I hope ? I only ever use NGK plugs and have BPR6ES currently fitted in my highly modified Plus8 engine. Is it worth paying 4 times as much for the equivalent NGK BPR6EIX Iridium plug ? I know they last longer, but since it's only £24 for a set of the standard plugs, I'm happy to frequently change them.
Stay safe, John.

1999 Plus8

Re: Iridium spark plugs [Re: Jads] #675181
28/11/20 04:18 PM
28/11/20 04:18 PM
Joined: Jan 2007
Posts: 1,711
A
aerotaff Offline
Talk Morgan Enthusiast
aerotaff  Offline
Talk Morgan Enthusiast
A

Joined: Jan 2007
Posts: 1,711
Hi Jads. I run iridium plugs on my 1800 3 cyl two stroke outboard its 90 quid every 175 to 200 hours it hurts a bit with no ngk equivilent available. If your happy with your motor the way it is I would leave well alone, theres something quite satisfying whipping your plugs our every 10k to check everythings ok. Em

Re: Iridium spark plugs [Re: Jads] #675189
28/11/20 04:38 PM
28/11/20 04:38 PM
Joined: Nov 2016
Posts: 86
Dorset
J
Jads Offline OP
Just Getting Started
Jads  Offline OP
Just Getting Started
J

Joined: Nov 2016
Posts: 86
Dorset
That's exactly what I was thinking !

Re: Iridium spark plugs [Re: Jads] #675242
28/11/20 08:59 PM
28/11/20 08:59 PM
Joined: Feb 2016
Posts: 3,424
East Harling, Norfolk UK
RichardV6 Offline
Talk Morgan Addict
RichardV6  Offline
Talk Morgan Addict

Joined: Feb 2016
Posts: 3,424
East Harling, Norfolk UK
Didn't realise they lasted longer than normal copper tip.

As suggested they won't offer any noticeable improvement over a well set up ignition system with standard plugs. They will offer an easier start though when the chips are down in cold damp conditions. This because the exotic material allows a finer tip, in turn allowing spark to jump more freely hence with lower voltage. Gold palladium was first used for fine tip plugs now it's Iridium.

Have just put one in my Velocette and managed to start it before my leg gave out, so that's an improvement wink


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: Iridium spark plugs [Re: Jads] #675292
29/11/20 10:14 AM
29/11/20 10:14 AM
Joined: Nov 2015
Posts: 3,204
Yorkshire
CooperMan Offline
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CooperMan  Offline
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Joined: Nov 2015
Posts: 3,204
Yorkshire
Last time I changed a set, they'd done about 45k miles, the gap had only eroded about 2 thou, and the electrodes were really clean, big thumbs up for Iridium from me


Jon M

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