This is the type of thinking that has caused this project to take such a slow path. I am always looking for unique ideas and trying to avoid the mundane (ie. safe, tried-and-true, etc.). Maybe it is unconscious self-sabotage, maybe I am a genius, maybe somewhere in between. Any informed opinions on the failures of this mocked up setup? Other details of the idea: Yes, the banjo will face forward. Closed drivetrain with very shorted TT. I know I will need to solve for X, when X = radius rods. Adjustable spring perch mounted on the tubular cross member. Car will be very low, body channeled, some type of fenders, sports rod/ special theme.
If the spring gets a bit too wide for the perches and flattens out, it will hit the perch. Put the perches on the bottom of the axles and the spring can't hit them. Otherwise, it seems like it could work fine. I'd recommend that since the TT will be rather short, you make sure your driveshaft angle at ride height isn't too extreme.
Bob Gregorie flipped the rear of the frame for Edsel's Model 40 Speedster- here's what it looked like:
Here in the UK Neil Bennet's Batten special has the rear part of the 32 frame flipped and the spring arranged like the Edsel Ford car. It is more sports special than hot rod. It makes for a very low rear.
Thanks for chiming in guys. @alchemy I hear ya on the shackle hitting and am playing around with positioning. @Mac the Yankee That is a great reference. If an original Ford Engineer thought it worked, I feel comfortable to proceed. @Mart Great car and a great inspiration. I am looking to build something in between an American hot rod and a English/European sports special. So the reference is spot on. Here is another pic of the Batten Special and its bare chassis. The big difference with my plan was the spring ahead, which will likely be slightly different because of the shorter distance between springs, but nothing that would make it not work just fine. Thanks again!
Use your imagination ! you can go way lower than that with a conventional frame over the top. Use inverted "Portal Axles" from a VW Kombi on the end of your axle tubes. Because you've already got a Banjo rear-end you need to flip the crown wheel to the other side so the axles turn backwards, Then the portal axles reverse the direction. The Kombi portal axles [also called reduction hubs] lower the ratio by 1.26, so you need a 3.25 C&P to end up with an overall ratio of 4.10:1