Have a look at the chart for a guide on usage...
http://www.castlecreations.com/suppo...ring_chart.pdf
Does Sidewinder replace Mamba Max?
No, the Sidewinder series is designed for sport customers. Hard core racers will still demand Mamba Max power, just like the national champion drivers do. Sidewinder is an exciting entry point for high performance brushless offering approximately 2/3rds of the extreme power available with Castle’s Mamba systems.
So a MM is rated for abouy 100A - Sidewinder 66-70A