Subject: Exhaust systems/ peripheral ports
From: Paul
Date: 5/2/1999, 9:40 AM
To: zz

Here is the HP chart for the Lemans four rotor
with variable length intake pipes and peripheral
ports.

To convert Kilo Watts to HP divide by 746.
For example 400 KW at 6250 RPM is 
400,000 divided by 746 or 536 HP
For a two rotor that would be about 268 HP.

At 6000 RPM 360,000 / 746 is 482 HP or
241 HP for a two rotor. 

Not far off my former estimate for 20 inch
long 1.75-2 inch intake pipes at 6000 RPM.

Note the BSFC takes a dip right about 5000 RPM 
so that is where you should cruise.

Now if you want to run a 3:1 PSRU and don't
mind taking off at 7500-8000 RPM you can get
some REAL power out of a rotary :-).

As I said I would not mess with side ports.

lemanhp.jpg
 
Paul Lamar
 
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lemanhp.jpg