 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
|
 Posted: Sun May 14, 2006 3:13 pm Post subject: Prop choices for REALLY big 4-cyl Lycs |
 |
|
Howdy 'list-
Interested if anyone has a prime fixed-pitch candidate prop for one of the
new 390 & 400 inch Lycoming clones- with the extra oomph, seems a f/p would be a
good choice for reducing co$t, complexity & weight. I've e-mailed Craig
Catto to see what he's got up his sleeve, but curious if others have suggestions?
Anyone hit on a hot setup for one of these monsters yet?
Thanks-
Mark - do not archive
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
|
_________________
From The PossumWorks... |
|
| Back to top |
|
 |
martin(at)gbonline.com
Guest
|
| Posted: Sun May 14, 2006 4:51 pm Post subject: Prop choices for REALLY big 4-cyl Lycs |
|
|
Mark,
I have 350 hours on my IO390 from Barrette Performance AC. I have both a
76" Hartzell from Vans AC and a Aero Composites 74" carbon fibre prop with
blades optomized for the RV8. After extensive testing of both props, I have
gone with the Aero Composites because it is 15 lbs lighter and 16 mph faster
than the Hartzell and no vibration. The Aero Composites is slightly slower
on rate of climb, approximately 200 - 300 fpm, however it still climbs
over 2000 fpm in 30 to 50 degree outside air temps. I do have a Sam James
cowl and plenum which does enhance performance over a stock Vans cowl setup.
My airplane weighs 1140 lbs empty.
For your information, I had a IO360 Lyc with 10-1 pistons etc prior to the
IO390. I ran it for 946 hours before the bearings in the engine failed. As
a result of that unpleasant experience, I would not recommend a pumped up
engine again.
On the average the IO390 is approximately 12lbs heavier than the IO360. At
standard cruise settings 23x23 it uses a half gal per hour more fuel - 10.5
gal per hour and cruises on average 5 mph faster than the IO360 .
I hope this information helps you with your engine,prop selection.
Dick Martin
RV8 N233 M
the fast one
---
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
|
|
|
| Back to top |
|
|
Painless
Joined: 10 Jan 2006
Posts: 40
Location: Peshtigo, Wisconsin
|
| Posted: Sun May 14, 2006 6:18 pm Post subject: Prop choices for REALLY big 4-cyl Lycs |
|
|
Mark:
Sounds like you are feeling a need.....a need for speed!
Us guys with 150hp O320's gotta stick together dude!
Do Not Archive
Jeff Orear
RV6A N782P
Peshtigo, WI
---
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
|
_________________
Jeff Orear
RV6A N782P
Peshtigo, WI |
|
| Back to top |
|
|
lors01(at)msn.com
Guest
|
| Posted: Mon May 15, 2006 5:02 am Post subject: Prop choices for REALLY big 4-cyl Lycs |
|
|
Don't run one of those big piston powered motors Dick, but got to say =
that I really appreciate the hard data & performance numbers you come up =
with from time to time. Keep it come'n!
Tracy Crook
do not archive
---
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
