I am just curious to know if the same rods/cylinders are giving way when these FI motors are blown? Anyone look into this yet?

 

usually 6 in our experience

 

tends to be the rear cylinders.....as they "may" tend to run leaner due to increased airflow to that portion of the intack manifold. Other will say that the rear cylinders run richer becuase the air can't make the turn as well into the rear cylinders.

 

When they broke my motor down . The passenger rear cyl. was the darkest and each cyl. got lighter in color going counter clock wise around the motor . The rear cyl. on the driver side was the lightest [ #6 ] . The middle cyl. on the driver side was the one that broke

 

so is it counted like this?

firewall

1 4
2 5
3 6

Front of car

 

Straight from shop manual:
.

 

makes sense looking at how air enters the intake making the turn