Brock,
Welcome to the looney bin.
Is the "noise" constant, or does it vary with speed?
The oil smell could be several things, but, with your qualifier "after hard use," you might check and see if you've blown power steering fluid out of the cap on the reservoir. This is typical of the SVX. Also, small leaks in the lines leading from the transmission to the transmission cooler are typical, after the hoses begin to harden. You might check for leaks there. They won't leave drips, since the fluid is dripped onto the manifold (usually) and burned before they hit the ground.
I've been to around 135 with plenty of legs left. Top speed on a 94, I believe, is somewhere around 145 or so. '92's are reputed to top out just short of 155, if memory serves.