I often get asked how I go about setting up the steering assembly on the XRAY X4. Apart from the obvious, basics, which are carefully explained in the tech tip video listed with a QR code in the manual, I am about to make a couple of add-ons below.
First of all - shimming between the servo saver/horn and steering link. The goal is to have the steering link sit in a completely straight angle across the chassis when the steering is at full lock to both L and R sides. As illustrated in the picture. It may vary between different servos/servo horns/savers. For my Sanwa PGS-LH II, I am using 3mm of shims to achieve this geometry.
The 2nd suggestion involves the length of the steering link itself. If you're like me, with mild OCD, you'll want the steering system to be completely symmetrical between L and R, also when it comes to the EPA settings on the transmitter. The goal is to have equal, or little difference between the EPA settings between L and R. This can be achieved by cutting the kit turnbuckle to a length of 18mm, and setting your steering link to a length of 37.5mm, as illustrated in the picture. This makes the servo horn/saver sit at a 50-60 degree angle towards the chassis, or "9-10 o'clock" better described.
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