Spark Plugs

[Guest Alasdair]

I bought my 2B ready-built and have never taken the plugs out, I think they could do with a change, what do people use?

 

Engine is Pinto 2L, Piper BP285 cam, standard head and twin 40's.

 

Thank you

[Guest chris brown]

NGK by preference Bosch are ok but defiantly not Champions I’ve had too many fail to use them again.

[Guest TheDog]

NGK by preference Bosch are ok but defiantly not Champions I’ve had too many fail to use them again.

 

...this is exactly what I would say too...

[Longboarder]

Standard NGK AP6FS are fine with a standard head. (AP7FS are one grade colder/harder if you mod it much more).

 

Nigel

[Guest Alasdair]

Standard NGK AP6FS are fine with a standard head. (AP7FS are one grade colder/harder if you mod it much more).

 

Nigel

 

Thanks - AP6FS it is then.

[Guest Peejay]

Hmm NGK's must have improved. Used to have no end of problems with them at high revs in higher gears, misfire would develop after about 2000 miles. Replacing the plugs, which would be clean, cured the misfire. eventually changed to Bosch and never had the problem again.

 

Pete

[Guest salty_monk]

Sanspeed recommended the 7 plug to me for trackdays on a similar spec.

 

Hard to get hold of though (i found). I always used a 6.

 

Dan

[Guest chris brown]

Hard to get hold of though (i found). I always used a 6.

And getting harder as the pinto must by now be the only engine left in any numbers to use 18mm plugs

[Guest paul091085]

seen these on ebay, seems quite cheap

 

Clicky

[Guest salty_monk]

£7.60 all in I work it out to be... (for 4) presuming that's 75p each + £2.50 postage plus 70p each for the other 3...

 

Dan

[Guest Alasdair]

Only £180 for a set of 4 here! Ebay

 

Just not sure how to order 4 of them though, If I select 4 the price shoots up to over £5.

[Guest paul091085]

works out to £7.08 for a set, so is cheaper than the ones i found

[Guest yosamite sam]

I use NGK R AP6FS

 

apparently they are around 75pence each in Lucas (is there one near you) i live in stockton cleveland

 

mate bought his only a while back

 

NGK AP6FS

[Guest AWhite]

Try http://www.sparkplugs.co.uk/ they have the 7s.

 

Also if you look here it explains what all the NGK codes mean.

 

Also Burton Power do the plugs going up by one number each time up to NGKA9FS for extra race at £3.25 each in. vat

 

Andy

[Guest TheDog]

Prepare for stupid question:

 

So what is actaully the difference. Why would you want to run cooler, harder etc??

Does it make any difference to the running temperature?