Ground clearance

[Davidbolam]

What is the minimum clearance for the sump on a roadster. I have gone for the engine sump sitting 4cm under the chassis rails after reading a few posts on here. When I looked at the ride height that some people use 10cm front and 15 cm rear this will make it very close to the ground. I plan on having my suspension set fairly hard most of the time so will this cause a problem. I am tryin to ensure that top of the engine will not interfere with the bonnet.

Thanks


David