ORIGINAL: dw_crash

Dear RCGuy,

Nope, tried for several hours without any luck. The engine starts easily, runs well at full power, or even at half power. But it flames out during throttle up or down.

After start up I let the engine warm a bit. Then, I moved the stick to full power, at a modest rate, let it run, stably, at full power then throttle down at a modest rate. I can usually do this twice before problems occurs. It happens at around 85K rpm. The engine flames out with a nice little fireball ou the tail pipe. So it is half way through either throttling up or down, doesn't matter, when it flames outs. The ECU records a FLAMEOUT.

I changed the delay settings from the given default of 16, in steps of 5, all the way up to 45. It seemed to make little or no difference. That's when I gave up. Nearly 4 litres of fuel later, and it still won't work properly. Does anyone have any suggestions? Anyone seen this before?

These are the settings I used, for JetJoe:

The JJ-1400 Fadec setting:

Max speed: 160000 RPM
Idle speed: 45000 RPM
Stop speed: 30000 RPM
Max temp: 800 C
Min temp: 100 C
pump start point: auto+2
Start ramp: 4
Acceleration delay: 18
Deceleration delay: 18
Stability delay: 45

The biggest difference was switching from a JetJoe fuel pump to a Hausl280 (WREN MW-54) pump. The engine was rock stable at any throttle setting. It would sit at 100K rpm and not move. The JetJoe pump would wander up and down 500 to 1000 rpm.

So any suggestions would be helpful,
A desperate, DW_Crash