Spark Plug Query

[jimbo]

Hi folks. Hope you're all keeping well?

 

I've just bought some new plugs for my Capri (1984 2.0 OHC engine). They are Bosch Super R6. The plug gap is factory set to 0.8mm

 

In the Haynes it talks about Champion plugs (can't remember model number off the top of my head), but the gap is set to 0.63mm.

 

Question is, which setting should I go for?

 

Other factors to bear in mind:

 

Car is running std evertything, apart from Bosch dizzy fitted with Accuspark electonic ignition http://www.ebay.co.uk/itm/Ford-Capri-el ... 35ad3782cd

 

I fill it with standard U/L with Lead replacment additive.

 

Thanks in advance for any help.

 

Jim

[Davewrc]

NGK say 0.6 aswell so I'd go with that

[jimbo]

Cheers Dave.

 

I've seen a couple of threads on other forums talking about a gap of 0.8 for 'leccy ignition. Does anyone have any thoughts about whether that might be right given that I've changed over from points?

[BIG G]

with a decent coil id run 0.9mm but should handle 1mm

[2litreScapri]

Is there any benefits to running bigger spark plug gaps if you hav a decent coil?

[jimbo]

Bigger gaps = more spark area = fuel ignites more rapidly = more oomph!

[2litreScapri]

Cheers, I knew I was always missing some engine tuning knowledge. You never stop learning!