As above took my plugs out my car to find they were denso iridiums put 071`s in it gapped to .6 and on idle its a bit up and down if u know what i mean , just not as good as before why is this troops and am i better running these denso boys or what can i do to sort it out or is this the craick wa 071`s

 

gap the 071s to .75 mate and see it that makes it right!

 

will do

 

use c57s at 25 thou instead if the gapping hasn't solved the problem with the other plugs mate

 

Mine on 071's is a bit up and down on idle when gapped at 0.6, so I gapped to 0.7 idle was better but cuts out above 20psi, so have gone back to 0.6, so I can use all the power. I have a group A coil as well, so if you solve it let me know what plugs you use. As I have used C57's before but they did not last very long.

 

Exactly what he said ^^^^^^^^ Coming back from Skeggy mine was missing at about 26psi so im gonna hav another play with the gaps again. These plugs have been discussed so much recently and it seems that the only plus sides to them are cost and the fact that they're a really cold plug....but thats where it ends, nothing special about them with regards construction. Dont rate the champions my self tho, tried both grades and mine didnt like either. Altho Cossie engine's are weird....seem to have a personality of their own....on very similiar specs, some engines like certain plugs whilst others hate them

 

Yep, then mine is Victor Meldrew...

 

The thing is i had denso iridium type plugs in , and it was sweet , might go back to them to save all this hassle

 

Mine is running sweet on the 071's rab.