Quote Originally Posted by Flipper_1938 View Post
I think the longer leaf will make it easier to distribute the spring loads onto the unibody chassis. Without a "real" frame, it would be hard to build a mount that could handle the torque of a quarter eliptic spring.
I guess it would depend on the frame structure and how it is integrated into the unibody. The Austin Healey Sprite/MG Midget used a quarter elliptic rear suspension albeit with much lower HP than you are using.