Spark plugs

[WokingWedger]

As my plugs tend to be a bit on the sooty side (not getting to do a lot of spirited driving)I was thinking of swapping the NGK B7ECS for B6ECS.

Can't seem to find any though!

Can you still get them or have they been superceeded ?

[WokingWedger]

Dr Mike Oxgreen said:

Go for BPR6EIX iridium plugs, and then don't change them again for at least 30,000 miles. I've got them on mine and they work well. I've attached a label to one of the HT leads saying "Iridium plugs - please do not replace" so that they don't get changed unnecessarily during a service.

Any sugestion as to where to buy at a reasonable price?

[WokingWedger]

igiveup said:

http://www.sparkplugs.co.uk/ngk-iridium-spark-plug...

Thanks I saw that one.

Is that really as cheap as they come ?

[WokingWedger]

Just ordered the Denso iridium twin tip.

I will report back !

[WokingWedger]

[quote=SILICONEKID345HP]I thought Iridium were used for stomach ache .[/quote

Look out Dave they may stop your gas!

[WokingWedger]

Will I need to adjust the timing using Denso iridium twin tip ?

I guess I try it, and see if it 'pinks'.

If yes, then I may have a decision to make !

[WokingWedger]

Not looking for more power, just a bit less fouling and smoother running.

I now have the plugs but need a few days before fitting and reporting

[WokingWedger]

I didn't say the above ?

[WokingWedger]

blitzracing said:

Ummm- if you set the timing with a strobe, it will always represent when the arc occurs, irrelevant to the spark plug type or gap but having said that- lets say you opened up your plug gap to 1mm, it will take longer for the HT to rise to a point that it arcs, so delaying the firing point fractionally, so it would make sense to double check the timing having messed around with either the gap or the electrode shape.

.

I am beginning to wish I just went for conventional 6 rated plug!

[WokingWedger]

Remember me ........

(the OP)


Well I fitted the Denso Iridium tt's...............and ...............















Well the truth is ..............



















I have not got a conclusive verdict.

What I did notice is that my poxy stepper started hanging the revs again !

Could this be related ie at given amount of fuel, more efficient combustion = higher revs ?

Thought not !

It started easy enough and idles well enough, but it did that anyway.

I may have detected better throttle response, but needs more driving to be sure - could be a placebo (to carry on the auto-hypochondriac theme.

I need to drive around a bit (roads not track) and whip a plug out to look at it.
(trouble is there is so little electrode that it may not show any colour )

Edited by WokingWedger on Friday 9th December 15:54

[WokingWedger]

ChimpOnGas said:

Congratulations Peter, and if you dont mind me saying it's quite brave of you to fit these highly destructive time bomb spark plugs from NGK, even though they themselves recommend them for the Rover V8.

Have you noticed any engine damage yet?

My car has done over 30,000 miles on these iridium tipped "6" rated plugs and I'm still waiting for my inevitable engine damage, I guess it's just a matter of time

Good job I fitted the Denso's then!