Det on 1 and 2
 

Hi from the Uk :)

Is det on 1 and 2 a 'thing'?

Loving my car on a TD05 16G peaking 20 and holding 18. Rods only build done 12k miles ago with acl's etc. etc.

Smoke after the overrun so did a head on valve stem seals replacement (used two trainer laces tied together) with OE seals. Still smoked.

Turns out I may not have had the valve guides done last time...... My fault not the machine shop I think....

So the engine is apart and I'm going to do pistons too now and go a bit bigger with a Churbo as have used that stuff plenty times before on RX7's and others.

I have found some det marks on 1 and 2. Now I know you guys over there love your re routes to take care of cylinder 4 but apart from having the EV14 injectors checked which were new, does anyone have any ideas to what else to look for?

Edit - 3 and 4 are mint btw.

No

To the point. Cheers.

More specifically, det on a single cylinder, or only on half the cylinders, is just not a thing. :)

Ha ha thanks. My first Miata, didn't know if there was any foibles to learn around the fueling / intake. Cylinder specific afr would be soooooo nice.