I'm considering raising my engine slightly to try to avoid quite so much grounding of the sump (I've done less than 2,000 miles and 'touched' the ground 3 times!) and I'd be interested in other's experiences and observations. Clearly raising the centre of gravity is never a good thing, but the engine really does seem too low right now.
Car is a CSR 200, used mostly for touring. It's a 2.3l Duratec dry sump engine.
My plan is to fit James B's cunning "sump guard ramp" to the car, but on starting this project, I've discovered that my sump is around 10mm lower in the chassis than James's was.
James's device looks like this:
What I've done so far is check the ride height, tyre pressures, suspension settings, etc. The car is currently 147mm ride height at the front, without me in it and the CSR factory spec calls for 140mm-145mm. The car drops ~2mm at the front with me in it. Also without me in it, the lowest point of the sump is 73mm off the ground:
I've checked the clearance between the bonnet and the cam cover and it seems at the closest point that I have around 12mm of space:
I've checked the engine mounts and they both seem to be OK, the rubber hasn't collapsed or anything allowing the engine to drop. I've also experimented with the implications of changing the angle of the flywheel relative to the diff with this Heath Robinson device:
and satisfied myself that changing the angle of the engine very slightly isn't going to put silly loads on the propshaft. I also checked the path of the steering column through the engine compartment and I won't run into issues with exhaust headers, etc.
My current thinking is to raise the engine around 6mm at the front, by putting washers above the rubber supports in the front engine mounts, which will bring the sump to around 80mm off the ground, but still leave 6mm of clearance under the bonnet at the closest point.
Am I missing anything, or about to do something really stupid?