Lyc IO-390 EXP119

Gunfighter19 · #1 08-27-2021, 12:36 AM

Anyone care to share the process of putting the new IO-390 in an RV-8.

Paul Vander Schuur
209-602-7559
Building an -8

pipern9175d · #2 09-19-2021, 07:32 AM

I am in the process now. Info to come.

Presmini · #3 05-08-2023, 01:07 AM

Curious if there are some good threads on this topic. My engine is coming later this year and not sure what finish kit changes to make.

bmellis11 · #4 05-08-2023, 06:18 AM

Following.

Carl Froehlich · #5 05-08-2023, 07:55 AM

I recommend installing Van’s new RV-14 snorkel designed for the 119 engine instead of the one Van’s sends you for the IO-360-M1B. It has been modified to provide better much better air flow into the 119’s FM-200 fuel manager - and is already set up to fit the FM-200.

I do not know if there will be any cowl interference or not. The horizontal injected RV-8 cowl gets very tight in the bottom front. I would not be surprised if you had to do some cowl work.

Carl

jclark · #6 05-08-2023, 08:51 AM

Quote:

Originally Posted by pipern9175d

I am in the process now. Info to come.

He (piper9175d, a friend of mine) did it.
[He does not post very often but if you send me a message, I can get it to him or ask him to check here and reply.]

"Outstanding Workmanship" award at AirVenture last year (I flew it there for him), and I think a lot of it had to do with his engine installation. .
Originally an IO360 but swapped out for IO390 119EXP after a few hours.

Worked with Don at Airflow Performance to "improve" the "snorkel" for better fit and better "flow" (per testing by Don).

Custom 4 into 1 exhaust made for it.

The engine both "growls and purrs". Pulls strong and runs smooth.

Freemasm · #7 05-08-2023, 10:35 AM

I'm gonna sound like the big hole today; will seem that I'm one of "those" guys.
I am not defending my choices or claiming that any particular option is better. Build the plane you want.

All that said, the mod'd straight valve O-360s will get you to about the same HP. It would be cheaper, take out a lot of customization/build time, other. It's a lot more than just making things fit. Do what you want but throwing something else out in case you had overlooked it.

Laird · #8 05-08-2023, 01:46 PM

Quote:

Originally Posted by jclark

He (piper9175d, a friend of mine) did it.

<Snip>

Custom 4 into 1 exhaust made for it.

James,

Do you recall who fab'd the exhaust?

Thanks, Laird

Freemasm · #9 05-08-2023, 02:06 PM

Quote:

Originally Posted by Laird

James,

Do you recall who fab'd the exhaust?

Thanks, Laird

Probably AWI, Aerospace Welding Inc

jclark · #10 05-08-2023, 04:23 PM

Quote:

Originally Posted by Laird

James,

Do you recall who fab'd the exhaust?

Thanks, Laird

Clinton Anderson
Clintco Industries DBA
Custom Aircraft Parts
El Cajon, CA

After a LOT of dimensional data was supplied, he built it (took some time) and when we got it back, it DID NOT FIT! There were certain nuances that could only be noticed when you try to put it on a plane with everthing ALREADY in place.

So ,,, we studied it for quite some time and followed the path of every curvature and determined that the whole assembly needed to be one (1) inch LOWER. The main pieces were sent back and redone.

This time everything FIT QUITE NICELY!

It was neither his nor our fault. It was CUSTOM 4-into-1 with a 390 EXP119 on an RV8 with an updated snorkel and that had not been done before to our knowledge.