Hey, I've recently been doing some research on the topic and I'm very skeptical so I figured I'd ask the experts... you guys and girls!
So the spacer is the 30mm spacer kit that PBM sells. Its a bolt on CNC machined aluminum spacer consisting of a hub-centric 15mm base w/ extended studs and then 7mm, 5mm and 3mm stackers.
After seeing that pic of the 3 wheeled, ebay-spacer equipped, rsx riding on one wheel (you can pm me for pic if you haven't already seen it), I started to think about it way too much:
1. I read in an old Dec 2009 modified mag that OEM Nissan wheel studs are notoriously "soft" so...
2. I'm worried about shearing forces acting on the nuts that hold the spacer to the hub. in addition to the short nut that is used to hold on the spacer, there are only 4 wheel studs to distribute the shearing forces on; instead of 5 studs.
3. I'm also worried about bending / breaking spacer studs because only the initial 15mm spacer with the studs is truly hub centric, the outer most slip on spacers are only "centric" to the wheel not the hub? So the stack-able spacers are mostly lug-centric? and could potentially slide on the surface of the 15mm spacer causing the spacer studs to bend/break?
I don't have a lot of experience with spacers and so I'd thought I'd ask around to see if anyone knows anyone who is rockin 4 lug spacer status or has first hand experience with this kind of offset helper.
Any info on any brand name 4 lug spacer use would be appreciated, Thanks!