This is a picture of the Racing Beat 900 HP turbo three rotor on the RB dyno.
This is kind of a bad example as most intake tubes do a 180 degree turn up
and
over to the other side of the engine where the spark plugs are.
Consequently the injectors and fuel plumbing would wind up on the other
side of the engine away from the exhaust.

Is this clear?

Paul Lamar

  Yes Paul, its clear. Conventional wisdom says that one big advantage in
EFI is that the airflow is dry as it snakes its way thru the tuned manifold
and gets a shot of fuel near the intake port. There is no "snaking" in the
RB manifold you use as an example. I question whether you would suffer fuel
drop out/puddling in the more typical manifold that we would be using.
  It appears that the factory compromised by placing the injectors somewhat
away from the exhaust heat but not all the way around the corner and out by
the dynamic chamber on the late 80s n.a. engines. I guess the only way to
know for sure is to test it. Wonder if Tracy could be talked into a little
experimenting with injector location?

Mike Wills

Keep reading Mike. BTW the last RB rotor housing picture shows the holes in the
rotor housing alongside and above the intake port where the injectors
WERE mounted. This did NOT give good BSFC.

I just ordered a 92 page catalog/handbook for $12 from Kinsler
Fuel Injection. They have fuel rails, pumps, filters, injectors, 
etc., etc. and all sorts of other fuel injection stuff as well as 
bent tubing in al and ss. I hope they have some bell mouths we can use.
I think the fuel rail extrusion is raw so you can drill holes
for your specific injector spacing and drill and tap the ends for
AN fuel line and pressure regulator.

(248) 362 1145   http://www.kinsler.com
 
Paul Lamar
 
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