[SPAM] Re: [SPAM] Re: Prop choices for OS 91FX

[Rodney Tanner]

Thanks Nat, I will give that a try with the pipe @ 25"
Rodney

Nat Penton <natpenton at centurytel.net> wrote:
I run the OS91fx under 8000. The larger props are more efficient and the noise level is comparatively very nice. I don't think I am giving up much in the way of thrust horsepower.                        Nat
----- Original Message ----- 
From: Rodney Tanner 
To: discussion at nsrca.org 
Sent: Friday, February 04, 2005 10:50 AM
Subject: [SPAM] Re: Prop choices for OS 91FX


I am using a 14x8 on a Hano type pipe (7.5# Desire) which gives 10,500 RPM. I had problems setting a longer pipe for for a 14x10, which was the target prop at 9,000 RPM. I am going to try a Perry pump set up, with the 13.8X10 4B. I need to change out the rear bearing soon (250+ flts). 
A while back, I read somewhere that the 91FX likes to rev around 10,000, given it,s over square stroke and porting configuration. 
 
Rodney
NSRCA #2906

Wallaceaero1 at aol.com wrote:
I liked the APC 14-8 on a 7 3/4 pound MK Skystar using the stock OS Muffler. This Spring I am going to experiment with a
tuned pipe/Mueller header and try various props. I did see Scott Anderson's 4 blade setup on his Viper91 and it did pull
very well.
=================================================
To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.



---------------------------------
Do you Yahoo!?
Yahoo! Search presents - Jib Jab's 'Second Term' 

---------------------------------


Internal Virus Database is out-of-date.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005
Internal Virus Database is out-of-date.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.7.0 - Release Date: 1/17/2005

		
---------------------------------
Do you Yahoo!?
 Yahoo! Search presents - Jib Jab's 'Second Term'
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.f3a.us/pipermail/nsrca-discussion/attachments/20050204/5f9bdba4/attachment.html