as above, the car is a 2wd sapphire cos, low comp, 3 bar, 803's, 500 cooler etc. running a t3 which boost's too 22psi. 328bhp before missfire . i've tested the plugs, and i'm pretty confident thats the route of my trouble.

i've heard that 071's at 0.6mm would be best, am i too assume these are available from ford? and is this the best option for me? or i am best just nipping down to demon tweeks and getting shafted by some over priced option?

oppions and advice much needed.

 

http://cgi.ebay.co.uk/COSWORTH-AGP-0...QQcmdZViewItem

found them for you Im running them and imo they are a good budget option.

Stu.

 

Hi mate i just put champion c57 in on recomendation although now has a lumpy tickover, but much smoother when driving

 

tweeks just quoted £60 for a set of denzo iridium, are these any good??

 

lol shud hope so for 60 quid!!

 

071's are great value for the money i personally change them every time i change the oil.

 

i've just changed from 071's to denso iridium ik27's

the 071's are a good cheap plug but mine were pretty much done after 3k (electrode worn away)

the denso's idle very well and hopefully will last ages

 

pp8's all day long at 0.6 mm

Never had a problem

 

after speaking with a couple of local tuner's i've gone for some c57's gapped at 25 thou ( 0.63mm ) cost me £40. i was told to expect them to last between 3000 to 6000 miles.

the tick over does'nt seem as bad as i was expecting, and it feels as smooth as ever through the rev range.

cheeRS all.

 

I gave up with the c57 and c59 range...couldnt get more than 2500miles out of them.

 

think the c57 , c59 are more of a race plug and hi boost. ive just put a set of pp8 at 0.8mm for standard boost runs better than ever .

 

shame they dont make the 701s any more