What have people set there's at?

Just changed plugs and it's misfiring under boost. Had this last year when I changed the plugs.

I've set them to 0.8 but have got MSD wasted spark kit. Thought it would piss it at that?

380hp saph on AGPR902P's

 

I would have thought they could be larger, given you have WS.

Martin

 

On my saph I set them to 0.6 on standard ford plugs

 

im sure I used to run 0.6 gap

 

Have gone for 0.7, will give it a blast on the way to work tomorrow morning and report back.

Ta macho xxx

 

.6 should be ok mate just so you no you cannot run a big gap on a Cosworth even with wasted spark as the boost blows the spark out . All so check your leads are not to close to each uver as that can cores problems all so

 

Cheers mate. I blasted to work this morning because I couldn't work out if it was 4.30am or 5 30am! Anyway it was to coughing at top end so have just reduced them again. Now at 0.6 like you say. Will give it a go. Poweeeeer

 

You should be able to, the reason this is done on the standard system is due to the weak spark.

WS provides a stronger spark, which is one advantage.

Martin

 

You might be right but from my experience if the gap is just a tuch rong even on wasted spark they will play up . When I sent my focos to be set up my tunner told me to put a MSD coil pack on the car as the standerd ford coil pack can all so struggle at hi boost .

 

Right update... after trying 0.8, 0.7 and 0.6 on AGPR902P's I have come to the conclusion that they are total wank. Had misfires on boost with the bigger gap and yo-yoing idle with the smaller gap to the point that the engine was nearly stalling at lights!

Am now back on trusty 071's gapped @ 0.65mm and was on full boost all the way home with my cock in my hand! No problems what's so ever.

071's all the way! No need for any others �� Poweeeeer!

 

Happy days I had so many people telling me when I first got my Cossie to run denso and all sorts of other make plugs, they all made it run like a bag of shite so I went back to standard ford plugs and I haven't suffered a single misfire ever since! Only when it does start to misfire at least once a year I know it's spark plug change time and then it's good for another year at least lol!!