Vetterman recommends installing the EGT probes between 2"-2.5" from the exhaust port. Conventional wisdom says that closer to the cylinder they are the more instantaneous the readings, but the further away the longer the probes last.

In all cases, the crucial point is that they all the the same distance so you get an apples to apples comparison between cylinders.

I started laying this out by reviewing the RV14 engine turntable pictures on Vans website to get an idea of how they clocked the EGT probes so I could get an idea of what might work best.

Once I determined that the Vans example seemed to also also make sense for my configuration, I followed Vettermans location advice by taking a 2" section of wire tie and using it to mark several places around the circumference of each tube. I measured from the lower side of the exhaust flange, which is 1/8" thick, so each hole was located 2 1/8" below the mating surface of teh cylinder and the exhaust pipe.

I drilled a #30 hole, loosely fit one of the probes, and got a measurement for how much excess I needed to cut off the end of the band clamp.

Once the clamp was trimmed to size, I seated it by alternately tightening down the mount screw and tapping the clamping surface adjacent to the probe with a wooden dowel and a light hammer. I followed this process for each of the 4 probes.

Wiring was conventional. The probes come with #4 ring terminals and stainless screws, so I crimped #4 ring terminals on the ship side wiring, connected them with the provided stainless screws, nuts, and insulating sleeves.

I've never likes tis ring terminal arrangement. It just seems prone to failure due to vibration induced loose connections. If I have trouble with these in the future I may cut them off and replace with spades or knife connectors, or maybe splurge on Cessna style plug in connectors. For now, since that's what came with them, so thats what I used.

I has previously routed the CHT wiring inboard behind the intake and exhaust pipes and it made for a really clean installation. On the pilot side I was able to add the EGT probes to this existing setup. On the right side however, the orientation of the probe off of cyl #1 seemed to lend itself more to routing outboard of the pipe.

In addition, some time after I had routed the CHT wires, I discovered that lots of people use that inboard space for routing the scat tube to the cabin heat inlet and that seems to make more sense, so I relocated that bundle outboard.

Some people have noted sensor reading fluctuations if they route these sensor wires in the same bundle as unshielded spark plug wires. Since I have P-mags with unshielded leads that seemed liken might be a consideration, so I routed the bundle adjacent to the plug wires, but separated with standoffs and separate adel clamps.

After this was all wrapped up, I powered up the MFD and all probes were indicating approximately ambient temp, so they all appear to be working correctly. Another line item checked off the punch list!