Hello. I recently lowered my z about 3 inches or so. I also did kinetix upper arms( I cut the inside fender and welded in patches to create plenty of clearance) and rear camber arms and spring bucket delete arms (toe arms). Everything looks like it has plenty of clearance but when I hit a bump there's a hard bang coming from the front end. I thought I read somewhere that something needed to be removed when going this low but can't remember what. Is it the steering stops hitting the tie rod ends or something? That's the only point that looks like it could hit.
Suspension gurus you don't need. By lowering the car that much, there's very little suspension travel left. Either the front spindles are at their limits and are binding with the upper or lower arms, or the steering rack arms are hitting the unibody. If the latter were true, I'd expect the arms to bend quickly. But either way, once a solid stop is hit, the spring rate on the front goes infinite and the car can slide unpredictably.
Most lowered Zs I've seen are driven for show only...
It was the arm hitting the patch that I welded in. I underestimated how much they had to extend the arms to get my camber within spec. The guys that havnt cut that section out must be getting some crazy slams when they hit bumps because mine are about 2 inches higher than that point when they hit.
Looks like I need to do some more cutting/welding and possibly look into stiffer springs.
FWIW, when lowering ANY car, it's usually a good thing to cut the bumpstops down. On sanely lowered cars running on the street, roughly "half height" is about right. Your car is lowered well beyond "sane". Hahaha.
Not only that, you've totally wrecked the handling of your 350Z. The idea that lower is better is a total fallacy as you just about ruin any of the original geometry rendering you car unpredictable at best. Its all show and no go, not what I'd be buying a 350Z for.
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