PISTONS: Flattop or Dish for stoker....
i'm runnin KB742 forged step dish piston, with aprox. 10.96:1cr w/ 57.5cc iron cyl.heads.
92 octane for drag racing, and 90 octane for general street cruising.
heres a very shitty drawing on FT vs DT piston...
the piston on the left, the flame is on a more linear path, reflecting off the sides of the cylinder
and chamber roof, increasing the chances of detonation ( having multiple flame fronts)
the dished piston on the right, has a more non linear, flame travel, rolling off the cylinder sides
and chamber roof. with a more complete and single flame front. hopefully it makes some sense lol.
heres a good example of flattop pistons and multi-flame fronts: http://www.youtube.com/watch?v=LZVnQeBek30
i'm runnin KB742 forged step dish piston, with aprox. 10.96:1cr w/ 57.5cc iron cyl.heads.
92 octane for drag racing, and 90 octane for general street cruising.
heres a very shitty drawing on FT vs DT piston...
the piston on the left, the flame is on a more linear path, reflecting off the sides of the cylinder
and chamber roof, increasing the chances of detonation ( having multiple flame fronts)
the dished piston on the right, has a more non linear, flame travel, rolling off the cylinder sides
and chamber roof. with a more complete and single flame front. hopefully it makes some sense lol.
heres a good example of flattop pistons and multi-flame fronts: http://www.youtube.com/watch?v=LZVnQeBek30
