So long story short I'm mid engine swap at present and to get the engine to sit where I want it I need to drop it about 15-20mm relative to the engine bay. Unfortunately that would mean the oil pan would sit right where the steering rack wants to live.
The way I see it my options are move the steering rack down and forward slightly (probably 10mm forward and about 10-15mm down) but I know that will piss with the steering geometry and seeing as how my car is already lowered quite a lot and suffers from a fair amount of bump steer and whatever else I don't really want to screw with it further if I can avoid it.
The second option is to space the entire front subframe down by 15mm. However posts on some forums about this subject suggest that this would screw with the suspension geometry but I cant see how it would. The front Subframe on the MX5 has the mounts for Steering rack, LCA and UCA so they would all move relative to each other, the only thing that changes is the distance between the top and bottom suspension strut mounts and as I'm on coilovers I can compensate for that by adjusting the height.
So any thoughts on which route is better and why and also why some people seem to think that spacing the subframe down would affect suspension geometry?