Hi Jim, can you give me a call on 07724 194717 when your free 🤗

If your looking for a 2:1 ratio then many years ago I saw a short oval racer that had two parallel steering columns with one driving the other via a timing chain and cam / cranks gears which are 2:1.

Very interested in doing this, just need to get some more experience of driving Jane and doing some adjustments, which should happen at Sywell. Need to know fuel usage, fuel endurance, any evident symptoms of low fuel, tyre wear, brake wear, what spares I will need, etc.
Even if Jane turns out to be not quite ready for what looks to be an arduous event, then can probably come along to assist with the event 🤗

Forgot to give the reason for  number 7A,. Austin 7 = 7A. Also cars n Team events cars were identified by the team number and  individual cars in the team by letters. Raced in some great team events (Birkett 6 hour relay and MGCC Heritage relay as car A

That looks great, I like the way the grille is behind the axle.  I cant see how much body there is behind the seat from those photos.  Will there be enough space to get the axle, engine and transmission in?

If it wont work, then an adaptation of your analogy of a ratchet may work.  Have the drive and driven sprocket with a chain, but no freewheel, just simply rotating in either direction.  But weld a socket on the driven sprocket, then just insert a ratchet into the socket when you want to reverse.

It would just be like a bike, drive sprocket at the pivot of the dummy handbrake lever driving a driven sprocket somewhere on the axle and a small bike chain.  I guess the bike hub and sprocket could be at either the driver or driven sprocket. My lad often hits 40mph on some downhill runs where he lives in the Alps.

Thanks guys, good to hear some personal experience, will definately be making my own now.