What is the proper piston ring arrangement? Please do NOT answer if you THINK, im looking for the I KNOW answers.
Is the gap of each piston ring suppose to be;

STYLE (A)

going from top to bottom -
ring 1 - 12 o'clock
ring 2 - 3 o'clock
ring 3 - 6 o'clock
(not counting spacer ring)
ring 4 - 9 o'clock

STYLE (B)

top to bottom
ring 1 - 12 o'clock
ring 2 - 6 o'clock
ring 3 - 3 o'clock
(not counting spacer ring)
ring 4 - 9 o'clock

STYLE (C)

going from top to bottom -
ring 1 - 12 o'clock
ring 2 - 6 o'clock
ring 3 - 12 o'clock
(not counting spacer ring)
ring 4 - 6 o'clock

Thanks
Dave

 

None of those:

Top Ring: 3 o'clock (towards back of engine)
2nd Ring: 9 o'clock (towards front of engine)
Top Oil Ring: 10-11 o'clock
Oil Spacer Ring: 6 o'clock
Bottom Oil Ring: 2-3 o'clock

 

Just to clarify, when you say 9 o clock front engine, you mean towards timing belt not front of car correct?

Just out of curiosity, wouldn't a gap every 90 degree's have a better seal vs the 3/9 oclock and 10-11/2-3?

 

Just found my manual for the piston gapping, and Mitsu manual says;

ring 1 , north east (2 30ish)
ring 2, south west (7 30ish)
ring 3, north west (10 30ish)
ring 4, south east (4 30ish)

 

Go with mitsu. From all the data i have collected. You wont rings 180* apart and never place the gap over or 90* to the wrist pin. I did and accidentally scored my bores. After i noticed i repositioned them and it smoothed it all back out. Sadly i noticed to late and my bore is more then spec for out of round/cylindricity. Its all good. Its time for build number 3 to come to life.