Jerry Bass wrote:

I am starting to work on the VAM for my RV6A, N596JB.  The photos 
show the unit bolted to the exhaust ports. I need to extend the 2" 
pipe from the block to the VAM unit to get my top Tracy's Strut to 
hold the front of the engine.

If I extend the front (#2) pipe 3/75" and the rear (#1), 4.125, 
I can pass the verticle engine mount on the right of the photo.

I feel this would not jebrodize the tuning greatly. By lenthening 
the block to the VAM, I can put the ring on the 1/2" top support as 
the sketch shows.  The top half of the 'ring' comes off so I can get 
the VAM in place.

I can get 3" 321 SS turns from Spruce Catalog and cut them up.  The
 VAM is a bit long, but I can truncate the back RH end at an angle to 
help with the Turns.

With the extended block-to-VAM The unit will nearly touch the outer 
nose cowl. I hope to Mock the unit up shortly and run the engine. 
If necessary, I will add a Fishmouth to the end of the final pipe.

Can anyone bend a small tube to fit into the Air inlet to the VAM 
for a speedometer? The bend radius nees to be less than 1/2" and 
3/16 tube. Otherwise I will make a turn via a machining process.

Jerry Bass
540-932 3124

 
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