Hi

For a cosworth with:

T35.55 (Turbo Technics S112)
403's
L8 ECU with MSD Stage 5 with ALS

Better spark plugs?

Regards

 

IK31's mate

http://cgi.ebay.co.uk/Rs-Cosworth-Sp...item3efe0dbb14

 

IK27's .

 

I use 071s on mine which is 400bhp, only £10 a set

Steve

 

I would be tempted to use the cheaper 071's, as I find the IK range very sensitive, ace but amazingly sensitive to my rev limiter, they can be a bit rough when hitting it too much I find but 071's don't seem bothered at all, shame as the car runs much nicer on IK27 that I use normally.
tabetha

 

platinum denso K24PR-ZU OR K27PR-ZU,best choice i think.

 

i would use ik27s for road use, and swap to ik31s for hard track use on that spec.

 

Uses Bosch F2CS and it works great!

//Jonas

 

Hi

Thanks to all, I see that ik27 and ik31 are the most used

Differences between the two models? The car is used for rallying so ik31 I think

 

From memory the 31's are a colder plug.

 

I use 071 in mine on a wasted spark system

 

Yeah same here, never had any problems with them!
Cheers Shaun