Originally Posted by
hacker
what's the story behind the pistons? don't understand it
It's a 3 hole piston, 2 holes are drilled to 1mm and one to 1.5mm
Here is a comparison chart between various pistons
AE/Losi Pistons Chart
54 = blue (1.4) x3 = 4.61811 mm^2
55 = orange (1.32) x3 = 4.10541 mm^2
56 = red (1.2) x3 = 3.39291 mm^2
1 - 1- 1.5 = 3.3378 mm^2
AE#1 = 54 (1.4) x2 = 3.07874 mm^2
57 = black (1.1) x3 = 2.85096 mm^2
AE#2 = 55 (1.32) x 2 = 2.73694 mm^2
60 = natural (1.0) x3 = 2.35617 mm^2
AE#3 = 3/64" (1.19m) x2 = 2.22438 mm^2