Ken Powell wrote:

Mark,
Hang in there on making this work.  Here are some ideas:  note that you
should be able to save 5 - 10 lbs over Tracy's motor mount, use a

permanent

magnet alternator (only weighs 4 lbs including rectifier) to save 6 lbs,
use in-tank fuel pumps with the fuel filters adjacent to the tanks, move
the battery all the way to the tailcone (heck, put both batteries in the
tailcone!), use a peripheral port intake (save ~ 4 - 5 lbs), note that

the

exhaust systems being worked on by Tracy, Ed, and others move the

muffler

rearward a lot (this will affect the CG a little).  As you can see, the

CG

can be moved around a lot.  I am moving the engine CG 4" forward in my

RV-4

and have played a lot of 'CG' games to make sure that I am OK.  I found
that on a RV-4 the engine CG can be moved 6" forward and still meet

Van's

CG specs of with max Aft baggage, minimum fuel and a single 110 lb pilot
(worse case scenario - in case my wife decides to get her pilot license-
not likely but miracles do occasionally happen).  All of this should

allow

you to leave the radiators under the cowl to simplify things.  IIRC, the
Vision is a 2-place side-by-side, so putting the radiators up front will
really simplify the installation.  Be sure to check out the drawings

that

Paul has built and put on his website.

Ken Powell

Mark Waldron wrote:

Ken,
  All great ideas.  I'm putting 'em in my "trick bag" to be used when I
finally get to this stage.
Thanks.
Mark

 
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