Question for those with cowl fitment experience.

I have fit my airducts using the shapes they came with for a guide
They fit well or I thought.

Now I am fitting the cowl to the engine and the ducts
do not fit the cowl both in height and side to side in the
area of the duct inlet or opening.

My question is did any of you have to trim the ducts shape for both
length and the sape to control height.

Can you share with me what you had to triim
and an idea of how much.

I can continue to trim but need to ask first.


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Comment by Chris Sinfield on December 23, 2009 at 3:52am
can somone post a picture of the new white cowling? Mine is gray but a square oil cooler ? now I am not so sure wich one I have?
Comment by Mark Ertz on December 22, 2009 at 9:56pm
Tell us more, Rich,
Not all XLs are the same. I got latest cowl and latest air duct. Fit is one thing, function is another. The most important point is Flow. Creat the correct flow over the cylinders. You are not going to know function until your flying, and flying a lot.
Comment by GENE MAYO on December 22, 2009 at 6:15pm
Rich: I had trouble with mine at first. I don't know where you got your FWF kit. But I had the air ducts for the new cowling. I.E. the new cowling is white in color and has a square opening in the front for the oil cooler. while I had the cowling for the old oil cooler.Gray in color. there are difference air ducts for the two cowling.Now you may be .as confused as I am.

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