Anyone have EI CGR engine instruments?

[Skymasterdriver]

We have both engines off and I’m assuming you pulled all the old wires out, I am going to do a new weight and balance on mine, we will rent some scales and get a new weight on 504. How did you determine the weight difference after your install?

[Rick Erwin]

Originally Posted by Skymasterdriver

We have both engines off and I’m assuming you pulled all the old wires out, I am going to do a new weight and balance on mine, we will rent some scales and get a new weight on 504. How did you determine the weight difference after your install?

Yes, we pulled all the old wires out.

My IA has the scales and ramps to do the re-weigh, once we are at the point we can put the interior back in.

One thing to think ahead about is ... if you are going have new electronic engine instrumentation that includes a fuel quantity indication is: You will need to calibrate the new fuel indication system with the tanks incrementally from empty through full, but the airplane will need to be weighed while empty. So, try to weight it before you do the fuel calibration, otherwise you'll have up to 30 5-gallon buckets of fuel sitting around.

[CO_Skymaster]

To Rick,

I'm getting closer to purchasing my MVP-50's. EI said they might have a rebate program in place around Sun-n-Fun in April, so I'm targeting that time. I would appreciate if you could answer 2 questions since you already bought one.

1. I noticed on your picture, you have an ALT1, ALT2, BATT, and BUS. My Skymaster has a switch that changes from REG1, REG2, and BATT. I guess that is for the pilot to switch since there is originally only one Volt meter. Did you remove that switch and this is how your system looks at the voltage pickups.

2. Did you use the EI P-300M fuel sensors. My mechanic recommend a fuel sensor, but it's twice as much as the EI sensors. I just wanted to know if you bought those, if you are satisfied with the sensor.

Thanks for any help,

Karl

[Rick Erwin]

Hi Karl,

1. I did not have that switch, and I had a single voltmeter that read bus voltage. I wanted to be able to see the various voltages to know what’s going on with the electrical system, so that’s how I designed the layout and configuration.

2. I used the EI fuel sensors recommended for my installation. I have yet to fly the plane, but my IA has run the engines and said everything was working fine.

I hope this helps.

Rick

[CO_Skymaster]

Yes, it does.

Thanks

[Learjetter]

Just FYI - - I've got some FAA airworthiness guys working with DER/DAR at EI to get the EI CGR-30P approved for skymasters. Eventually, EI wants the 337 on the AML for the CGR-30P combo STC. No word yet on completion dates for the project, but EI is working on it.

** July 2021 Edit: My FAA airworthiness guys are telling me that their position is "Non-STC'd engine instrumentation is not eligible for Field Approval, any any request would have to be forwarded to the Airworthiness Certification Office for Evaluation", per their job aid . Specifically, Row D.13k or D.13t requires either a STC or an EVL (at the ACO). Bottom line for me: Until EI gets the CGR-30 added to the AML, it's a no-go. I'm now really thinking JPI-960.

[hayesjaj]

Originally Posted by Learjetter

Just FYI - - I've got some FAA airworthiness guys working with DER/DAR at EI to get the EI CGR-30P approved for skymasters. Eventually, EI wants the 337 on the AML for the CGR-30P combo STC. No word yet on completion dates for the project, but EI is working on it.

My cluster gauge is on its way out the door (bad CHT gauges and senders with no replacement available, cracked glass, etc) so I am going to do the cluster replacement with my 73G model first. I talked to Blake from EI and he confirmed that I could do that and install two EDC units, one for each engine, then install the other instruments later. Still needs a field approval, so when I get some clarity on that I'll post back.

[saxbill]

Originally Posted by Learjetter

Just FYI - - I've got some FAA airworthiness guys working with DER/DAR at EI to get the EI CGR-30P approved for skymasters. Eventually, EI wants the 337 on the AML for the CGR-30P combo STC. No word yet on completion dates for the project, but EI is working on it.

Who were you speaking with at EI? I have cash in hand if they come up with and STC for the CGR-30P Combo. I've looked into doing a field approval, but it'll add at least $3000 to the cost of the system which would cause me to go a different direction. I would much rather have the CGR30 system.