NeilsenRM(at)comcast.net
Guest
|
 Posted: Mon Jul 14, 2008 10:36 am Post subject: Genrac Powered Firestar II |
 |
|
Robert / All
Thanks for the article and link.
It sounds like that engine package is a good match for a Firestar II. Wow 2 GPH.
I see Jimmy is using a IVO prop. Reports are that IVO is a bit low on thrust and it sounds like he can use all he can get. Powerfin followed by Warp are a bit better. A long two bladed prop might be even better. Talk to Valley they may give you a Culver prop to test. Also one of the many down sides of being the first is that prop selection is a real guessing game.
Over the winter I had my three bladed 72 inch F model Powerfin cut from 72 inches to 71 inches. I had hoped to get the same cruise performance with better climb. The result is the same cruise with about one hundred more RPMs on takeoff I had hoped for 200-300 more. The only down side is that I seem to be using slightly more power to get the same cruise. Powerfin had recommended that I cut the prop to 70 inches because that is the best prop for a 80 HP Rotax. I think the 70 inch prop would give me more overall performance but would use more power to do it. As it stands now my climb is great and when I get to cruise altitude I pull alot of power off for a 3200RPM 75MPH cruise. If I cut more off the prop I would get more climb performance but loose efficiency so I will stay where I am.
Rick Neilsen
Redrive VW powered MKIIIC
[quote] ---
| | - The Matronics Kolb-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?Kolb-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
