that part about the "hoop" was actually a quote from one of my posts here. Basically I moved the centre section of the x-member between the engine mount brackets rearwards about 20mm and down about 10mm (to the same height as the drag link) to allow me to fit the engine as low and as rearwards as possible. I mounted the engine so that the drag link just missed it at full lock (it rises slightly as steering lock is applied).

Even though I did the conversion with an L16 block, I never had any trouble fitting the 20mm taller L20B in there. Others have done the L20B conversion without cutting and shutting or lowering x-members.

I didn't have any problems getting it engineered for road use over here, but I believe you guys don't even have to do that! It wasn't technically legal for Improved Production racing here, but I built the car before I ever got involved in racing, or even considered it.

This is all based on modifying the 1200 x-member, the Stanza x-member would require much more work to fit into the 1200.