Misfire
- Thread starter allbeast
- Start date
I also run BCR8ES at around 0.8mm. - Go much wider than that and the problem might be spark blow-out unless you've got a stronger coil or you don't run much boost.
There's a bit of a balancing act; the smaller the gap, the easier it is to make a spark jump it (so it has less energy). The larger the gap, the stronger the spark... but when you add boost (and cylinder compression) on top it's like multiplying the gap.
Check for fault codes too; any chance it's actually an ignition cut because the car is going into limp mode?
There's a bit of a balancing act; the smaller the gap, the easier it is to make a spark jump it (so it has less energy). The larger the gap, the stronger the spark... but when you add boost (and cylinder compression) on top it's like multiplying the gap.
Check for fault codes too; any chance it's actually an ignition cut because the car is going into limp mode?
Another thing Ed pointed out to me is the build up on the distributer cap contacts. It gets a layer of oxidation? build up on them. (whitish powder) I don't know if you can just clean this off and reuse or whether you need a new cap.
Also, air leaks can cause misfires, could be worth checking all your hoses, big and small.
Also, air leaks can cause misfires, could be worth checking all your hoses, big and small.
You can just clean that off. - I've got a little file for just that job; obviously you take the surface layer off each time you clean them up, so it will eventually need to be replaced.
It's the same with plugs really; they're cheap and it's easier to replace them, but it wasn't that long ago that you'd clean them up, regap them, and put them back in.
It's the same with plugs really; they're cheap and it's easier to replace them, but it wasn't that long ago that you'd clean them up, regap them, and put them back in.