Slow Car Fast
LIFE OF A GT
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December 16, 2009 - After a bit of cogitating, I built this lower shock mount for the rear axle.
I'm not completely happy with it, it's not as elegant as I'd like. But it should be strong enough. It's 1/4" plate, welded to the lower trailing arm bracket as well as to the axle tube. There's a triangular reinforcement taking care of some fore-aft strength. I'm still redesigning it in my head, we'll see. That lower shock mounting point carries the entire load of the car (well, 1/4 of it). Assuming the car is around 2600 lbs and evenly balanced (possibly both fairly big assumptions), that means there's 650 lbs on that perch. If it's designed for a 3g load, that means it has to support approximately 2000 lbs. I'll definitely be monitoring this!
The upper mounts will be attached to a plate that will spread the load somewhat. At least, that's my plan. We'll see how that works out.
Underneath the bumpstop, you'll see part of the original MG axle sitting on top of my axle tube. This means I'll have the same bump travel as the original suspension. I'm estimating a bit here, trying to set the shock up so it doesn't quite bottom out at full compression. I expect to have to do some fine-tuning in this area.
tags: suspension