Mailing List flyrotary@lancaironline.net Message #3102
From: sqpilot@earthlink <sqpilot@earthlink.net>
Subject: Re: [FlyRotary] Intake questions
Date: Wed, 17 Sep 2003 23:41:41 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
 
----- Original Message -----
Sent: Wednesday, September 17, 2003 11:01 AM
Subject: [FlyRotary] Intake questions

Greetings,
 
I'm probably about to prove that I haven't paid any attention to any of the intake construction threads, but here goes...  I know there's special length that will tune the intake to make more power.  Ed knows what this is, but if he tells us, he has to kill us (a slow painful death, involving 60 slides)  :-) 
 
My general question is this- does it matter if this runner length is before, or after the throttle body?  I'm using the TWM throttle body, which is completely separated into two sides.  If I kept the air inlet to the TB as separate tubes for a particular length, would that count towards the tuned system? 
 
The reason I'm thinking about this of course is pre-planning for the almost inevitable removal of my turbo.  If I end up using a stock cowl, I'll have space in the left cheek for intake stuff.  I've seen a very short intake manifold that sticks straight out to the side about 4 inches or so, then the TB would stick straight out another 4 inches or so.  While this is simple, and compact, it would certainly not be good for our power band, so I started wondering if I could "tune" it with individual pipes on the inlet side of the TB.  
 
Thanks,
Rusty (Scotty, I need more power!) 
 
Hi, Rusty.....I purchased the short intake manifold from Dave Atkins. He claims he has more than adequate power with his, and that idle is also good.  Look at all the race cars and racing motorcycles that have the carbs or throttle bodies right next to the engine.  They seem to generate a lot of power that way. For what it's worth. Paul Conner
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