At a local autocross, there is a guy who has an old Datsun 510 that runs huge negative camber on his rear wheels.  I got to pick his brain not too long ago and he talked to me about camber VS cornering VS sway bar set up.

After searching hybridz.org and zcar.com I settled on a set of camber bushings from MSA.  They are adjustable deldrin and aluminum and you have to buy the adjusting wrenches seperately.

Picture taken before adjustment - these are fairly easy to install.  A recommended modification is to install grease zerks for regular maintenance.  I need to verify the actual amount of camber...it says about 1.5 degrees, which, after installation, doesnt **look** like enough.  At least for the rear end I will probably drill out slots on the body so I can slide the suspension mounts inwars, creating mor camber. 

This is the best way I found to replace the front bushings...do yourself a favor and loosen the sway bar, then push the arm down and brace it with some wood (it is lots easier than removing the TC arm).

And here is the front deldrin/aluminum bushing installed.  I have only driven the Z acouple times since installing but my kidneys are killing me as ride comfort is way down...but the Z corners on a dime and steering has become almost effortless (remember - no power steering).  Although I think I need to perform an alignment as I am probably running toe-in and it is recomended that for autocrossing, I run toe-out.

One of the reasons I wanted to buy a 280Z was I really liked the way the front valance looked - beefy, not like a fairly anemic looking stock 240z and uncluttered by turn signals.  BUT I also really liked the way the BRE front spook looked.  Also, there are numerous references (hybridz.org, Car and Driver article collection) to creating more downforce because I have noticed that the front end feels light above 70 mph, so this is a functional modification as well for future Bay Bottom Crawl, hill climbs, HPDE, and track days and hopefully other high-speed events in the far future (see page 21).  After searching, there is a company called Smoothline that will make a custom BRE spoiler for the 280z...but just buying one isnt the way I am wired, so I got a MSA fiberglass BRE spook spoiler for my b-day (thanks wifey!) and got to work.

The first step was putting the Z on stands and figuring out how to modify the spoiler to at least getting the mounting locations close to the lower valance - which "buldges" out farther than the 240z lower valance.  So I marked out areas to cut...while still leaving enough material to use for mounting.

Next was a night of test fitting.  Using painters tape, C-clamps, vice grips, and jackstands, I spent an evening test fitting, drinking beer, and listening to the radio.  Ahhh garage time!

After I was happy (by the way, the top of the spoiler was about 7.5-inches below the seam of the front fender and the lower valance) I went to Harbor Frieght and bought buts, bolts, washers (including lock washers), and thread lock.  Busted out my drill and got to work.

Here is the result.  I have to say that I am REALLY happy with the way it looks.  Although a lot lower than the BRE spoiler would be on a stock 240z, I have about 1.25-inches of ground clearance.  I took a test drive to work and the gas station and didnt scrape once (including two trips over railroad tracks).  Of course I will avoid speed bumps, but I might work on a way to raise the BRE spoiler a little higher just in case.  I should ad that I am not ***planning*** any more exterior modifications, I really like the way Rusty looks with the classic BRE spoiler, and that is about all I had planned.