Turbo 182: correct mixture for final approach at high altitude?

Peter Duniho wrote:

You do understand that he's talking about a turbocharged engine, right?
Generally speaking, full rich is the correct mixture setting for a
turbocharged piston engine, for full-power takeoffs regardless of altitude.


'Generally speaking', but not necessarily. Full-rich is the correct takeoff
setting for a FUEL-INJECTED engine regardless of altitude, but *not* for a
CARBURETED engine.

Most turbocharged engines are injected, but not all. In fact, the Turbo 182 has
one that isn't: a (carbureted) Lyc 0-540.

Really - my carbureted 182 calls for full rich on takeoff

"Mark Mallory" wrote in message
...


'Generally speaking', but not necessarily. Full-rich is the correct
takeoff
setting for a FUEL-INJECTED engine regardless of altitude, but *not* for a
CARBURETED engine.

Most turbocharged engines are injected, but not all. In fact, the Turbo
182 has
one that isn't: a (carbureted) Lyc 0-540.

Michael 182 wrote:
Really - my carbureted 182 calls for full rich on takeoff

So does mine - at SL on a standard day.

But not on a hot 95 degF afternoon at 5000 MSL.

"Mark Mallory" wrote in message
...

Michael 182 wrote:
Really - my carbureted 182 calls for full rich on takeoff

So does mine - at SL on a standard day.

But not on a hot 95 degF afternoon at 5000 MSL.

What's the critical altitude of the turbocharged engine in your airplane?
Is it above or below the density altitude for that 95 F at 5000'?

As long as you are taking off at full power, I see no reason why you would
not use full rich mixture. Conversely, if even with the turbocharger, you
cannot make full power, I can believe one would need to lean.

I don't see why the difference should be between fuel-injected versus
carbureted. The metering is basically the same for both; only the method of
delivery is different.

Pete