I hope someone can give me some advice on setting up a JJ-1400 with a genuine Xicoy V.10 FADEC
Recently I purchased a JJ1400 kit from Jet Joe and following his instructions and the information found on this forum assembled the engine
I decided for the electronics to purchase from Gaspar his Xicoy FADEC V.10, Gas and Fuel Solenoids, RPM Sensor and Thermocouple and a Flightworks 200C pump.
I have setup the FADEC with the default settings as Gaspars document suggests and have been able to run the engine first time without any real troubles (except for adjusting the gas flow) - so I am quite happy with that.
The problems that I'm having are:
1. On the cool-down cycle, the FADEC generates a Starter Overload error and this stops spinning the rotor. (Also is it normal what once an error has been generated that the FADEC will not respond unless it is reset - for initiating manual cool-down)... Ihad this as well and thought it was the starter as I went to an Orion Baja motor. I think the issue was draggy bearings.
2. On Start-up, getting the gas flow right - Too Much and it wont light, too little it lights and goes out when the engine in spooled up. Ive found that if I open the valve gradually after it lights the engine will continue with the start sequence check fadec settings shown
3. Time it takes to bring the engine to idle rpm and stabilise it seems to take forever. Do I need to adjust the Pump Start Ramp value? See fadec values shown
I think part of the issue is that you need to setup the ECUaccording to JJparameters.The exception to JJsetup for me wasPump Start point being lower with FW pump, Glow power lower and the ramp points are different. Ihave noted all of the settings below with exception of one or two that I could not find.
Email me directly if you need more help wh this.
The FADEC settings are:
Full Power: 160,000 rpm (however I have set the limit to 100,000 rpm during initial setup and familiarisation with the engine) OK
Idle: 45,000 rpm OK
Stop: 20,000 rpm OK
Start Temperature: 100C OK
Max Temperature : 800C OK
Acceleration Delay: 015 Ihave mine at 20
Deceleration Delay: 015 OK
Stability: 100 I have mine at 50
Pump Limit: 1020 you should adjust this to vicintiy of where PW is when running. Probably set to 500
Pump Start : Auto + 2
Pump Start Ramp: 006 Ihave mine @ 002 for FW 200 pump
Glow Plug: 1.5V OK >> Xicoy runs higher power to Glow plugs
Start Gas Adjustment: 100%
Low Battery: 6.0V OK
Starter Power @ Ignition: 070 mine is 040
Ignition Max Rpm: 4.000 OK
Ignition Min Rpm: 2.000 OK
Preheat: 2.0 Seconds mine is 6.0s
Rpm Gas Off: 13.000 mine is 45
Starter Power @ Fuel Ramp: 070 mine is 50
Rpm 100% Starter Power: 30,000 rpm mine set to 22
Rpm Off Starter: 25,000 rpm mine set to 30
Rpm to Reconnect: 22,000 rpm mine set to 28
Start Mode: Auto-Gas OK
Thanks in advance for any help you can provide