Tom Kendall wrote:

<snip>

Is it just the camera angle, or is that top bend something less than 90
degrees?  I haven't seen the "big picture", but I always envisioned all

4

bends being right angles and the runners ending up parallell in a

horizontal

plane across the top of the engine.  Can't do that with anything other

than

a 90 elbow.

Tom Kendall

Yes it is. 45 degrees.  I am playing some tricks on the other end to get

the

fuel rail on top of the runners.

Tom Kendall replied:

Interesting layout.  I spent some time noodling with the 20B manifold
tonight to see how I would eventually route everything.  I like your
arrangement.  How do you plan to connect all the tubing, including the
"sockets" for the injectors?  This looks like a good candidate for some MIG
or TIG welding.

The tubing will be tig welded together. Where is goes into the sockets
Tracy's JB Weld could be used.

And what about those injector sockets?  Any ideas on how to make them?  What
will the fuel rail bolt to?  Heck, why don't you just send me all the
intimate details so I can rip them off carte blanche?  ;-)

I figured I would have an injector block machined from an aluminum plate
that would receive the runners into sockets on either side (or maybe just
pass them through and leave a drilled hole for the injectors... then seal
weld the runners them to the plate).  The plate would provide bolting
locations for the rail.  At the starting end, I would just have a larger
plenum coming from the intercooler.
Tom Kendall

The injector sockets will be turned on a lathe and tig welded to the tubes
using an alignment jig to keep them parallel and in line. Then drilled out
so the fuel can get into the tubes. The fuel rail will be made from 
half inch square steel tubing and some sort of clip welded to the tubes to
hold the injectors in. Also raw extruded aluminum fuel rail can be bought and
drilled for your injector spacing. 

If your feeling chipper you could make a pattern and cast something for 
this end of the manifold as well :-)  

Paul Lamar
 
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