Subject: Intake Manifold Tubes
From: Rotary Engine
Date: 7/12/2005, 9:54 PM
To: AA-me


<snip>

Good going Bill. That is just plain great. Here is a tip.
The stock RX8 manifold makes 247 HP at 8500 RPM. You will need a bit shorter
runners to get peak HP at 7500 RPM
<snip>

Paul Lamar


Shouldn't that be a little longer?

Bob W.



Could be. Won't know for sure until sombody dynos it.

BTW Bill, You might need four yellow and two red RX8 injectors
for anything over 200 HP.
Tracy tell me the low power secondary RX8 injectors are blue.

Paul Lamar


Bob
Shorter is correct.
What is wrong with selecting a prop. To let her spin to 8000 and get the HP.
Will Tracy's EMC run two red and four yellow?

Ian

What say you Vance about a shorter prop running at 2,800 RPM?

I am all for this. We have not worn out a rotary yet in aircraft
service. I would like to see people run it at higher RPM to
see exactly what the TBO limit would work out to.

Paul Lamar

The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2005 All world wide rights reserved.