Originally posted by asw7576
LRP IPC SR is marketed for stock motor or over 11T modified because the FET rating is lower grade than V7.1. i.e. there is limitation for ESC pulling high amp motor.
I think it's wrong assumption if you think the SR is supposed to have more punch than V7.1. Both ESC have same driving freq. 3140 Hz but different FET rating.
I'm not assuming, it's LRP, that calls the SR a "punch machine".
I've copy-pasted a little from the LRP site:
IPC SR DIGITAL
THE PUNCH MACHINE!!
Specially developed for all racing classes with stock-motors, such as the LRP-HPI Challenge.
Automatic brake with power brake can be activated and adjusted.
For outstanding acceleration with motors of 17 to 23 turns.
SR software for rocket-like acceleration.
Digital automatic start system.