On its own, this mod doesn't appear to solve any problems... actually the bellcranks and coilovers take up space that didn't need to be occupied before.
I'm wondering if this is a supporting mod, to free up space around the A-arms in preparation of something else.
Looks like he cut more than holes into the wheel houses!
I guess this is a "Because Racecar" mod in this case...
Open wheel cars use pushrod operated coilovers for aerodynamic benefit, so they get the spring out of the airstream to clean the car up aerodynamically. Pushrod operated coilovers can also provide packaging benefits for fitting wider wheels and tires into available space.
I don't see either one being the case on the front end of a Fiero.
A secondary benefit for "HUGE AERO (TM)" cars is that the motion ratio can be less than 1... that is the shaft speed on the damper is higher than the jounce/rebound speed of the wheel. This makes it easier to build a damper to meet the ENORMOUS damping force requirements of cars that can drive on the ceiling.
With a normal progressive rate spring, one disadvantage (is it really?) is that the Q factor will vary with travel, because the spring rate changes with travel, while the damper remains constant.
One can use a bellcrank to set up a progressive rate effect. Doing things this way, the damping effect and spring effect are scaled together.
I think it would make adjustable upper control arms easier. not sure the juice would be worth the squeeze though.
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