BTW what do you think of this manifold for a 20B?

Paul Lamar

Paul Yaw wrote:
 

I think it's crap.  I didn't respond originally because I thought Al built
it, and I didn't want to rag on him.  I emailed him and found out he didn't
make it.  I should have known.

I prefer long runners, but I know they don't always fit an airplane.  This
was designed to mate to a 3 barrel throttle body and because the spacing is
so different from the engine, the angles are absurd.  I would guess that the
flow is very different to the three rotors.  It's just nasty!  I don't know
what else to say.  This could have been done much better with mandrel bent
round tubing.

My approach is to build several pieces with adjustable lengths and test
them.  It's a pain, but it does guarantee success.  When you get around to
building your own manifold, don't use any of the stock pieces.  They all
suck.

Ask Mederer about some of these things.  He has probably tried more than
anyone.  I'm very impressed with his approach to engine building.  I have to
build a motor for my dad for a street car project.  I'm looking for a torque
peak around 5,500 to 6,000.  I'm going to use the TII side housings, and
I'll fabricate the manifold.  Adjustable lengths of course.  When I'm done
(I have to build a car first - A rotary bug.) I will give you the dyno
results from the manifold testing.

Thanks for answering my question.  It helps ALOT.

PY

 
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