Spark Plugs NGK BKR7EQUP R53 JCW alternatives

[jdl_1967]

I'm looking at changing the plugs on my R53 JCW 200 and can't believe a set of OEM plugs are £85.

I see NGK's own Iridium plugs (BKR7EIX for the R53) are only £25.

Plus Denso, Bosch and Champion seem to offer alternatives too at a considerable saving.

It seems the 210 version definitely needs the heat range 7 plug and I'm assuming the 200 also needs this rather than the standard R53's heat range 6 plugs.

Any advise would be greatly appreciated.

Thanks



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[badwolf340]

allways need to play safe with plugs ,one of my friends did not and ...:shut up:. but I am sure you will be fine :yes nod:

[Mon the fish]

Definitely need the 7s. Can you get BCR7ES? I'm running 8s and it was £8 for 4!

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[jdl_1967]

Do the 7ES fit too? I'm confused with all the different letters


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[Mon the fish]

Think I'm running BCR8ES, I'll check later

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[jdl_1967]

Thanks, that's brilliant


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[Sideways Steve]

I'm running 7's from a Porsche Carrera 4S - £6 for a set of 4.

I'll stick up the part number later on for you :)

[jdl_1967]

Cheers Steve


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[Mon the fish]

I'm running BCR8ES, so I'd imagine BCR7ES would be fine

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[Sideways Steve]

This may help, these are all useable alternatives :)

http://i307.photobucket.com/albums/nn287/Driftysteve/Cooper%20S/8FE05865-8E2E-4777-B0D4-D25B64F7858C_zpswrpo809c.png (http://s307.photobucket.com/user/Driftysteve/media/Cooper%20S/8FE05865-8E2E-4777-B0D4-D25B64F7858C_zpswrpo809c.png.html)

- - - Updated - - -

I'll double check later exactly which variation I opted for, but I stuck with NGK plugs mainly due to price and availability :)

[jonnie]

Im on ngk bcr8es they came with the pulley package from 1320.

[Sideways Steve]

Just checked and I'm on BCPR7ET you can also get BCPR8ET easily as well :)

[jdl_1967]

Thanks guys, I'm glad there are alternatives

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[jonnie]

Anybody know what the letters and numbers actually mean?

[jdl_1967]

Numbers are temp range, the higher the number the cooler the plug, at least that's appears to be NGK's system.

NGK have a great PDF that explains what their lettering system means, different materials etc.

How these all relate to a specific car confuses me totally.

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[Sideways Steve]

Here you go bud :)

http://i307.photobucket.com/albums/nn287/Driftysteve/Cooper%20S/823AC32E-271A-43BD-98E3-CEC0A85077F1_zpswovzen4n.png (http://s307.photobucket.com/user/Driftysteve/media/Cooper%20S/823AC32E-271A-43BD-98E3-CEC0A85077F1_zpswovzen4n.png.html)

[jdl_1967]

Cheers Steve

John

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[Sideways Steve]

I could go into detail about how to work out what combos you can use but to be honest your best just sticking to the alternative options list I posted earlier.

[jdl_1967]

I found this for NGK, beeewildering!

http://ngkntk.co.uk/wp-content/uploads/2011/03/Spark-Plug-Guide.pdf


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[jdl_1967]

Just in case anyone else is in the same boat at some point, I thought I'd post my outcome.

Sadly I couldn't get the copper cored BKR7ES here in the UK, so went for the BKR7EIX Iridium plugs for £27.99 a set.

When I changed them over I found I had Bosch FDR7DQP fitted, which are one range too hot and listed for the standard R53 and not the JCW equipped cars. I recently suffered a cracked head and wonder if the hotter plugs caused a hot spot in the head near the plug resulting in the head cracking, don't know?

Anyway, the car now revs cleanly to the rev limiter, something it didn't do nearly so freely before. I know plugs don't increase performance per say, but old and worn plugs definitely reduce performance I guess, so it's now running more as it should.

Thanks to all for your advice

John


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[Craig]

Good news John ;)


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[EcosseGP]

^^^ great news John lad ;)

[stoney]

Good news john glad you got it sorted