In the meantime I've picked up a Rover T16 engine that will be married to my Toyota W58 gearbox and installed in the car at a later date. It will be a challenge as the recognized route is using Sherpa van or SD1 gearboxes. Van boxes have rubbish ratio's and SD1 boxes are rare. Land Rover R380 boxes fit but they cost a fortune. I already have the Toyota box so thats whats going in. People put them behind big V8's and they come from Supra turbos so I know its well up to the job.
This is the engine, getting them together will be a challenge....
Making the box fit the engine is fairly straightforward if time consuming! I have two options, the first being a Maestro backing plate (I already have) that I can mark the Toyota bellhousing out on and redrill the mounting holes. Only problem here is the starter mounting is where the turbo is. Moving it to the other side isn't a drama as the Maestro plate is a 1/2 inch piece of steel plate. In a word, heavy!
Option 2 is using the original FWD bellhousing. Separating the FWD gearbox to expose the front part which is little more than a bellhousing. Grinding the diff carrier off makes it suitable. Then making an adapter plate to bolt the Toyota box to it. Nice over box clutch lever but the starter sits in the bellhousing and hangs over the top of the box. May cause a clearance issue. This way makes the install a lot lighter and it should be dead easy to line everything up. Again may need to move the starter!
I got this idea from a fellow Locostbuilder, Bill who is doing the same for his 7. Check it out here: