Lycoming Echelon M20E/F/J engine upgrade

[DaV8or]

Quote: SagemGuy

For just 3-4 knots and 10 HP, its just not worth it.  Now the one I am interested in, and that I wish they would certify and STC for my Mooney is this one:  http://www.lycoming.textron.com/news-and-events/pdfs/TIO-360_Engine.pdf

[KSMooniac]

I'm always skeptical.    It they were doing a proper break-in, they *should* be running max power at low altitude, preferably LOP, otherwise 150+ ROP.  Also with the cowl flaps open, in which case I really doubt the speeds they were seeing.

If that is the speed at 13 or 14 GPH, that is one thing.  If they got that speed at 8,000' on 9 GPH, that is quite another.  I'd also like to know if it was taken from IAS and properly converted to TAS, or if they did a 3-way GPS run and calculated the TAS from the GS runs taken 120 degrees apart.

[JohnPleisse]

I can't purchase one, I only have 450 hours on a NEW A3-B6, so I'll never own one. I think it is nice to see LYC realize a market, Hartzell to realize a market and new STC's available for 30 year old planes. It'll add value and interest to Heritage Mooneys. Again, LYC suggest a significant increase and so does Hartzell with the 2 blade Top Prop. Put 'em together and neigh-sayers would be hard pressed not to celebrate gains. Want a break through? Buy an Acclaim. Thanks for the welcome mat. I have been tooling around, reading and looking at everyone's photo albums. Awesome site.

 

JP

[Jerry 5TJ]

Better yet, get an engine that will run on unleaded gas.

[DaV8or]

Quote: jerry-N5911Q

Better yet, get an engine that will run on unleaded gas.

[triple8s]

I'd be happy with Vne increase, I can easily cruise in the orange with a O-360 as it is.

[RJBrown]

Quote: DaV8or

And that probably means the ethanol substitute fuel as well in the future!

[DaV8or]

Quote: RJBrown

 I hope we never get alcohol foisted on us. It makes a BAD fuel for airplanesc cars too. There is a reason mogas with ethanol can't be used in planes with a mogas stc.

[wolftimj]

A point of reference...

I replaced an at TBO cam eating IO-360A3B6D with an IO-360A3B6D factory reman with roller tappets and gained about 3 knots in cruise, using same old prop and no other mods to my 1982 M20J.

 

[OR75]

what do you mean by cam eating ?

[wolftimj]

Quote: OR75

what do you mean by cam eating ?

[DaV8or]

Quote: wolftimj

A point of reference...

I replaced an at TBO cam eating IO-360A3B6D with an IO-360A3B6D factory reman with roller tappets and gained about 3 knots in cruise, using same old prop and no other mods to my 1982 M20J.

 

[KSMooniac]

The IO-390 is a lot more money and requires the new Hartzell prop.

[INA201]

Anyone have any more data or updates from this old thread?

[KSMooniac]

I don't think many folks jumped on a 50-60K upgrade...

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