Pulled the trigger on an IO390 upgrade...

[bmcconnaha]

Looking for a few things to start the prep work. 
1- copy of the STC (hoping to read through it and see what modifications need to be done. Sounds very similar to the a3b6 changeover.  
2- copy of the POH supplement.  I’m going to upgrade my JPI 830 and they will need that to set it up for me.  
 

if anyone has those two docs, I’d be grateful.  I’m excited.  The quote was less than the 360 and Lycoming is allowing their EIS for one of the mags at no cost.  Looking forward to getting started 

[bmcconnaha]

Just now, bluehighwayflyer said:

Cool.  Is the installation of a Hartzell blended airfoil prop still required by the STC?

Jim

Yessir.  But, the prop shop I use offered my what amounts to a trade of my 214 prop to the hartzell for $7500 diff.  I had a new prop lined up no matter what way I went.  I was going MT if I went IO360.  

[carusoam]

We know a guy....  

See if Byron knows the detail... @jetdriven

Byron has been working diligently at being a Mooney guru for years...

Best regards,

-a-

 

[OR75]

Here is the link to the STC . I have the install manual somewhere but need to find it 
 

https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSTC.nsf/0/3d4b7bcbe01b72fa86257d0a005e0697/$FILE/SA09695AC.pdf

[jetdriven]

19 minutes ago, bmcconnaha said:

Yessir.  But, the prop shop I use offered my what amounts to a trade of my 214 prop to the hartzell for $7500 diff.  I had a new prop lined up no matter what way I went.  I was going MT if I went IO360.  

What’s the cost of that prop outright? I might be interested in the 214. The io390 is like 3kt faster than the 360. And the Hartzell BA prop on a io360 is 3kt faster. The 390 at 75% power is 2.5HP more than an IO360. 

[bmcconnaha]

5 minutes ago, jetdriven said:

What’s the cost of that prop outright? I might be interested in the 214. The io390 is like 3kt faster than the 360. And the Hartzell BA prop on a io360 is 3kt faster. The 390 at 75% power is 2.5HP more than an IO360. 

10k.  Lycoming wants less for the 390 than the 360.  And cylinder prices are essentially the same.  The most common reasons I heard for the not doing the upgrade were: cylinder prices.  Debunked.  Prop needed.  Planned that anyhow, and finally cost.  This engine is 1k less than the 360a3b6.  Seems like a no brainer... hopefully it turns out 

[OR75]

12 minutes ago, jetdriven said:

What’s the cost of that prop outright? I might be interested in the 214. The io390 is like 3kt faster than the 360. And the Hartzell BA prop on a io360 is 3kt faster. The 390 at 75% power is 2.5HP more than an IO360. 

Need a C212 ? It should work with your serial number !

[bmcconnaha]

15 minutes ago, OR75 said:

Here is the link to the STC . I have the install manual somewhere but need to find it 
 

https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgSTC.nsf/0/3d4b7bcbe01b72fa86257d0a005e0697/$FILE/SA09695AC.pdf

awesome thanks.  Looks like no RPM restrictions on the 2 blade  

[OR75]

As far as installation is concerned ... going from IO360A3B6D to IO390 is the same as if you go to an IO360A3B6 ... the accessories panel is the same ... so you will need those brackets for the governor etc ... 

there is a good illustrated thread on the conversion on this site 

[OR75]

2 minutes ago, bmcconnaha said:

awesome thanks.  Looks like no RPM restrictions on the 2 blade  

The yellow arc goes away with the hartzel prop 

I already have that prop and changed the tach markings 

[bmcconnaha]

3 minutes ago, OR75 said:

As far as installation is concerned ... going from IO360A3B6D to IO390 is the same as if you go to an IO360A3B6 ... the accessories panel is the same ... so you will need those brackets for the governor etc ... 

there is a good illustrated thread on the conversion on this site 

I’ve looked that over a time or two.  I figured if I was going through he hassle, why not try it out.  What’s your oil temps and CHT temps like? 

[Tim Jodice]

@bmcconnaha Have you flown your Mooney with the 390?

[bmcconnaha]

[mention=19792]bmcconnaha[/mention] Have you flown your Mooney with the 390?

Nope, still flying it on the 360. The engine is scheduled to ship in the end of February. I’m really looking forward to it.


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[OR75]

Just curious whether the February shipment was your choice or the lead time from the factory

[bmcconnaha]

Just curious whether the February shipment was your choice or the lead time from the factory

Factory lead time, unfortunately. I’m ready for it now. Mine leaks from everywhere and I am tired of the mess.


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[Tim Jodice]

3 hours ago, bmcconnaha said:

Factory lead time, unfortunately. I’m ready for it now. Mine leaks from everywhere and I am tired of the mess.


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How much time is on your engine? What year was it built?

[bmcconnaha]

How much time is on your engine? What year was it built?

1935 now, original engine, 1990


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[Tim Jodice]

1 minute ago, bmcconnaha said:

1935 now, original engine, 1990


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Thats great it lasted so long. Any cylinders or repairs along the way? 

[bmcconnaha]

Thats great it lasted so long. Any cylinders or repairs along the way? 

Top overhaul along the way. I think I bought the plane accordingly. I was mainly after the low total time since I’m planning on a full restore


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[Gene Baker]

i am in the same boat, looking to get a 390 or overhaul the 360 - can you give any insight as to how the 390 install went and what performance gains did you get? specifically looking at ground roll, climb rates, fuel burn, etc.