My Ringmaster refit is coming along, the VECO 19 BB is mounted and next need to build the tank. Question with the VECO, relative to engine centerline, what has worked for tank centerline location? My normal approach is to start centerline on centerline but I know that some engines (like a FOX 35) like the tank offset above centerline about 3/32". What does the VECO like?

Best,   DennisT

My ringmaster with a Veco 19 flys very well. I ended up having the tank quite a bit higher than I thought it would be. I wasn't sure it it was my tank, or just the way it is

OK first photo went on. Here is the completed tank.

Best,   DennisT

Dave,
Sorry about the angle of the photo. The outside corner of the tank has both the top and bottom corner pinched down. The GMA tank uses a curved corner I just clipped the corner at about a 45  degree angle and bent the top and bottom to form the angled corner. It looks a little different from the normal GMA style in that it is tall 1 3/4" rather than the normal 1" for an in fuse tank.

Best,    DennisT

I'm very curious about this tank design. Need more photos!

The GMA "pinch corner" design that I am familiar with, for example on the Peacemaker magazine build article, has the outboard back corner pinched on both top and bottom. That creates a narrow zone in the center with the pickup in it. And if you cant the back end of the tank outboard, should "be good to the last drop."

From what I can see in the photos you are showing looks entirely different than that, which makes me wonder--it there another GMA tank concept out there? Or is the second photo showing the tank rightside up?

    That's a variant on Aldrich's tank, except with straight bends instead of curves. The late Kenn Smith used to make tanks that way. It has the advantage of maximizing the volume for a particular length and cross-section. It works fine in general, although the cutoff is not quite as abrupt as a tapered wedge tank.

   Aldrich's original tank were not particularly clean to cut off, either, because the fuel tended to slosh forward and back like any rectangular tank, particularly with the original Nobler setup where it was intentionally yawed out dramatically. It's pretty good during maneuvering because the wedge angle is very shallow. I much prefer the Ed Robbert-style tank, and then just make it deep enough to hold sufficient fuel.

    How good this particular example works is up to debate, the wedge and pinch angles are very shallow, compared to Kenn's and compared to my copies of Kenn's.

     Brett