which spark plugs are the best to run in a rs tubo i fitted a set of denso irriduim spark plugs and they dont last long at all the car goes really well for about to weeks then it starts to missfire on boost change the plugs and its fine. what do you good people suggest

 

Ford Motorcraft 071C
I change them every 4000 miles, less than £10 a time for a set of 4

Run 1.7 bar of boost - approx 24psi

 

I use NGK BCR8ES, works good.

 

is there actually a single best brand ?

i have always used champion c59 gapped to 25 thou on this engine been in there for 10 months and still perfect performance, i think whatever lasts a long time with high boost is good

 

in the ford rsturbo service book it says to gap um at 0.040" thats about 1mm! is this correct?

 

for a std car yes

 

thanks guys will be changeing them at my work shop tomorrow got to do a couple of other bits to

 

When i went to order some for My S1, the guy looked in the book and said its a special plug for the S1 engine, He recommended the Champion C61ST. They cost me 35 quid for 4. They are a funny looking plug compared to others. I can't say what they perfrom like as i don't use the car, but it never fails to start with em, it don't missfire or anything, as for when under boost i couldn't tell you as again i don't use it. But the guy i bought them off reckoned they were the best plug to use, had to special order them from champion.

 

im using o91c standard ford plugs, my dealer said they no longer make 071c's?

any way, i gapped them down to 0.65 and im running 20psi with no problems what so ever, dont last long tho, 4000.

i had nks ones but they would only last 1000 miles

 

I use PP8 plugs in mine.....the standard plugs for a big turbo escort cosworth, was told these were good for when runnin lots of boost. No probs with mine so far, they're a bit pricey tho!

 

Same as above.. But i left my car for 2 months while doing work on it and it wouldnt start after. all the plugs were shagged??? New ones in starts first time...

 

bcr8es too,fine and dandy!

fae halfords too,oh thats handy!

spesh with my trade card! and the nice girl called mandy!

want to tek her out for a wee shandy,

get her thinking dirty,maybe she randy,

when she passes the change she strokes ma handy,

shit heres the missus.



the only other plug i needed,was for the footwells when i first got the car,tae let the pesh oot!.

 

 

Mine has been in for over four harsh winter months in Norway. Started once a month and starts like a dream every time without me even touching the accelerator.

 

best plugs was agpr 701c but ford dont make them any more. so next best is agpr 071c as james says

 

ngk ,,,aiye!

 

Just when i think u couldnt possibly be anymore of a wanker you go and write sum shit down like that

 

Oh NGK by the way

 

so you established fucking,ages ago eh!and no one wants to play with you.

 

yes! no!

And no one wants to "come and play" ACTUALLY

 

im using champion c59`s gapped to 25 thou

been in the car a year now and still no problems

i think there is NO best plug, just the most popular, ill use whatever works well, wether its the BEST or not is another story

 

simple solution to the mate..use the bloody thing !!
Btw, any updates on GOA while I remember ?

 

Denso plugs are meant to be really shit...


Raby has what Mr C and I have

 

Always used NGK's but just bought some splitfire plugs to see what they're like. Anyone tried them?

 

Oh no not split fire they're worst


















Joke

 

there was a guy bought a bath,the other day,took it home ,was back the following day,ranting saying he tried filling it up,but the water kept coming out,geeza says to him,oh ,man ,you need a plug then,the guy then says,fook,you never said it was electric.


note~
no nationalites,races or genders were compromised in this partly politically correct quip.

 

I did NOT laugh at that



OK maybe a little but don't start thinking your funny and cracking more jokes because I WILL NOT STAND FOR IT

Wanker

 

if your gonna resign,you have to leave your tool S too

 

IK 31's

 

Champion C57C's work fine for me

 

And me!! Been fitting these plugs to my RST's for 4 years with no problems!!

 

I had Denso before NGK, nothing wrong with them, worked flawlessly.