Thanks to Jac Mac, I've discovered a problem with my current oil pan set up regarding the adapter plate - there's no structure below the bottom edge of the block to support the torque reaction of gearbox upon hard acceleration. There used to be a stock LS7 pan, which had a bulk head that supported the adapter plate, but I replaced it so that the pan would not hang below the chassis. So I'm considering a few different options, but happy to hear if anyone else has ideas. A few pics looking at the back of the oil pan/adapter plate interface, facing the back of the car
On the right side of the car (true), install a piece of angle aluminum, 1"x3"x .25" thick, and tie it into the first and third pan rail bolt (counting from back)
On left side, 1"x3.75"x.25" with a 2.75" high relief cut at the back of the section to clear the remote oil filter lines, tie into 3rd and 4th pan rail bolts
or
utilize trans mounting stud lock nut location by installing a steel fork in its place, run rod end/rod/rod end to a bracket located at 3rd and 4th pan rail bolts.
There's obviously a torque reaction from engine braking, but my feeling is that it is not significant enough to warrant bolting the support into the adaptor place. The left side of the car is the problem area, with the oil lines. Using the stud location, space gets a little tight, but it maintains full integrity. Using the angle section provides a little more space, is easily removed for oil line removal. But there's less structure provided since it has to be relieved to clear the lines. Some integrity could be restored by bolting in a bridge between the two pieces of angle section.
Any criticisms or ideas?
TIA
On the right side of the car (true), install a piece of angle aluminum, 1"x3"x .25" thick, and tie it into the first and third pan rail bolt (counting from back)
On left side, 1"x3.75"x.25" with a 2.75" high relief cut at the back of the section to clear the remote oil filter lines, tie into 3rd and 4th pan rail bolts
or
utilize trans mounting stud lock nut location by installing a steel fork in its place, run rod end/rod/rod end to a bracket located at 3rd and 4th pan rail bolts.
There's obviously a torque reaction from engine braking, but my feeling is that it is not significant enough to warrant bolting the support into the adaptor place. The left side of the car is the problem area, with the oil lines. Using the stud location, space gets a little tight, but it maintains full integrity. Using the angle section provides a little more space, is easily removed for oil line removal. But there's less structure provided since it has to be relieved to clear the lines. Some integrity could be restored by bolting in a bridge between the two pieces of angle section.
Any criticisms or ideas?
TIA