XR4 reciver voltage?

[RR88]

Hi everyone, I've been using rc4wd's XR4 TX/RX for a while now on my scx10. I want to get more torque out my steering servo because it struggles a bit after I converted it to running 2.2 XL tyres, so I want to run high voltage to my servo's but I'm not sure if the XR4's RX can handle high voltage (7.4v). There is no spec's saying what voltage it can take, so I'm wondering if anyone else has ran 7.4v on this receiver?

[MikeMc]

I only run 6v from my esc into rx. My Bec is at 7.4 for my servo, use the Holmes Hobby cable.

RX bypass adaptor .... also for dual servos.