Subject: Intake Manifold Tubes
From: Rotary Engine
Date: 7/11/2005, 8:25 AM
To: AA-me

Paul, What should be the length, diameter, thickness, material type, and
bend radius for the intake tubes for the normally aspirated Renesis?

Do you have any drawings of a completed intake setup?  Throttle body to
engine, injector ports, fuel rail, etc?

In other words, have you already, or can you engineer the damn thing for me?

While you are at it, don't forget the exhaust!!! :>)

Thanks,
Bill Bradburry


I have no idea :) Too new. Nobody has flown a high power version yet
to my knowledge. I'd be guessing. You would be on the cutting edge.

Tracy is flying a low power RX8 engine and getting about 200 HP
with this set up at 7500 RPM. As I recalled he lengthened the pipes a
bit since these picture were taken. His ports have probably been street
ported by Bruce Turrentine.

Paul Lamar

Bill, what area do you live in. If not far from California we might
be able to work something out in the way of R&D.

Are you planning on hiring someone to build a manifold?
Are you planning on porting your RX8 high power engine?
The manifold design will depend somewhat on the porting.

Paul Lamar

Unfortunately, I live about 100 miles SE of Tracy Crook in Florida.  You can
get farther from California, but it is difficult!  30 miles east and I have
wet feet!

I am thinking that I should stick with the 4 port Renesis due to the
complexity of the intake,  I would certainly not be able to build that
intake, while I could probably assemble parts to construct the 4 port
intake.

I plan to get my engine from Bruce, but I have not discussed this with him
and don't know what he would suggest as far as mods.
I am really looking for consultation from the folks on this list that have
"been there, done that"!

Bill Bradburry

Well unless you want a lot more HP and or you want to spend a lot
more money the best thing to do is copy Tracy Crooks set up.
I would use better more fireproof materials than plywood however :)
Like aluminum.

Paul Lamar

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