hope all is well people!

Every now and again I see a Focus Rs mk1 or Zetec turbo online/in a mag etc and i usually notice 'NGK race plugs' but for the life of me i cannot match an equivalent to ITV27 Densos - the only other race plug i know is Champion RC501C £300+ a set! - isit a case where they are machining the head to take cossy NGK race plugs ? im after a cold set for a forged zetec engine , you know, with the stubby tab thing i dunno wat its called lol i havent been able to cross reference for an ITV 27 - 410 bhp @24 psi - i felt more of a pull with standard frs plugs with correct gap but went back to what ever Sabre installed initially ....

Any recommendations or pointings in directions would be appreciated!!!

 

My sons Focus was running 480hp when an ITV27 decided to disintegrate resulting in a melted piston. When we took it back to the engine builder, who builds all kinds of engines for road and track, he advised going back to the standard Ford plugs when the engine is rebuilt.

 

A mate of mine runs 480 in his mk1 focus RS. Standard plugs in it.

 

NGK-R is the make.

 

Or more likely...poor tuning, lean mixtures, detonation....destroyed the piston and the plug. Not that the plug caused it.

 

@jonfoc what gap mate. cheers

 

@bigdel funny thing is im getting more pops and bangs with a good set of leads and OE coil than i do with MSD....tuner also preaches this

Here it is with a 'quiet' exhaust ..


i put my 'loud' Hayward & Scott exhaust back on now idle is sorted

 

.7 rings a bell

 

yes same, many thanks!