OK, so I've bought some MX5 MK2.5 seats in very good condition.
They have the rake adjustment but the problem is, with the plastic cover for the rake mechanism on, the seats won't go back past the wide point in the foot well. If you take the cover off and the seat belt mount, it goes back a little further but still not enough. Swap sides and it's even better but the rake adjuster spring mechanism still juts out too far.
So here's the question. Is there any reason why the rake has to be sprung loaded for IVA or MOT? If I remove the spring and chop off the pin it sits on I'm pretty confident the seat will go right back against the rear bulkhead. This is all the IVA manual section 15 says
"3. Each seat, seat back adjustment and seat displacement system must incorporate an automatic locking system which operates in all positions provided for normal use."
I read that to mean as long as it locks in position, the fact you may have to move the seat back into position by hand is irrelevant?
I also need to modify the runners as the bolt points are angled and need flattening out. That should stop my knees from getting stuck on the steering wheel. if the seat can go back another 10cm I may stand a chance of getting my left foot comfortably on top of the clutch rather than under it too
I'm going to have to put my strengthening bars under the chassis rather than in the foot well just to get the seat low enough to drive let alone pass the "effective seat belt mount point" test