VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.


Go Back   VAF Forums > Model Specific > RV-8/8A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 02-02-2021, 03:59 PM
8MikeXray 8MikeXray is offline
 
Join Date: Aug 2006
Location: Santa Rosa, CA
Posts: 55
Default 390 in an 8

I have an EXP-390 installed in my RV-8. I originally had a superior XP 400 but when they bought back my engine I ordered the Lycoming 390. One of the main things to be aware of is if you use the FM-200 you will need to either use the RV 14 version of the engine and exhaust with the intake adapter that angles the FM-200 fuel injector body enough for the mixture arm to clear the lower cowling. I had to install a small blister on the bottom side of my cowl to clear the mixture arm when using the superior cold air induction. I also CNC machined a new mixture arm and cut 1/2” off the mixture shaft.

When I sent back the XP 400 I kept the superior cold air induction and installed that on the Lycoming 390. I also have the veteranmen trombone exhaust system. The adapter plate Lycoming uses to angle the fuel injector will not work on anything except for the new Lycoming RV 14 set up.

So basically I have the same layout as the new Lycoming 390 for the RV 14 but my FM-200 is fixed directly to the cold air sump without the angled adapter plate.
Van’s has a video on installing the 390 in the RV 14 which shows the angled adapter plate and mixture/throttle cable mount that you will need.

You will also need to make your own snorkel or modify a Van’s snorkel since the FM-200 is larger diameter and mounts differently than the van’s snorkel.

PM me with your e mail address for pictures.

Here’s the EAA RV-14 IO-390-EXP video that explains the above, details start at at the 26 mins point

https://www.eaa.org/Videos/Aircraft-.../6207071245001
__________________
MIke C
N68MX
RV-8 IO-390-EXP
A&P IA
ATP CFII MEI

Last edited by 8MikeXray : 02-02-2021 at 08:52 PM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 12:02 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.