I dropped the car off at Basset Down Balancing (www.bassetdownbalancing.co.uk) after the IVA and picked it up just over a couple of weeks later. During that time, it was having the sump lowered and widened.
Cast your minds back a few months and you’ll remember the ground clearance once the engine was fitted.
Most who build the MX5 SDV simply chop out a section from the middle and weld it back up to increase the clearance. Obviously the pickup pipe is also shortened an appropriate amount. At a guess the disadvantages of this is reducing the overall capacity and indeed the reservoir to hold the oil under heavy braking. Of course, not being a motorsport engineer in any way shape or form I could be wrong but with the oil pickup being at the back of the sump I wonder if you could get some form of starvation under heavy braking with the oil rushing forward. Maybe I’d be more impressed in a Westfield that produces that kind of braking force!
Anyway, chatting with Andy at Basset Down Balancing we came up with an alternative solution – dramatically altering the standard sump:
Total cost was about £450, but that including fitting. I’d guess £350 for a sump on it’s own.