Weight in back of car?

Can you get a diagram or some pictures of this?  There are always ways to modify any suspension

The Yugo used a transverse leaf in the rear and it was very easy to modify for height adjustment.  If you could post pics of how the spring attaches to the rear suspension we can probably come up with some ideas. 

The last thing you really want is more weight in the car.

transverse leaf spring....sounds like a CORVETTE.....

there has to be a way to bring the rear end down, without adding weight...since that is a bad idea.....is the 92 grand prix FWD or RWD...

I wonder if a corvette transverse spring would work.......if it is a standard steel spring...maybe you could play around with truck springs to make it work....

The car is FWD. The spring is some mystery stuff, it isn't rusted and is black. 
Will the car have the tendency to understeer?

This is what I was getting at.  Usually a simple mod to the mount points is all it takes.
On the Yugo transverse leaf it is literally about $9 worth of hardware store bits, longer bolts some spacers, drill out the old crap, insert new, done.

If I could see how it mounts to the outers I could probably come up with an idea.

Moving the inner mount up as suggested is also a good idea if it is reachable on this particular car.

Found some pics of my old Yugo suspension mods which may explain it better

Before

After

Do something along the lines of the photos above.  Move either the wheel end attachment points down or the center attachment up ( It's a lemon, get creative ) to alter the preload and keep the stock ( now stiffer ) spring rate.

Or ditch the leaf and fab some coilover mounts for your struts

Thanks for the reply's.  I have been doing some research but haven't been able to find out much on the suspension. My concern was the weight distribution being significantly changed which could change the way the suspension reacted.  I hated to ask the question about the weight because I thought it would be wrong, but I didn't know for sure.  Now I have a much better starting point.  There is a sway bar in the back, I am going to see about upgrading that for sure.

Be careful with this stuff. Unless you really know what you are doing, you could end up making it a lot worse or hurting yourself. Invest in a couple good book before you dig in.... Carrol Smith has a bunch of good ones (tune to win, race to win etc), and I like Paul Vaulkenburgs book too (Race car engineering and mechanics or something - can't remember). Another simpler one is "Handling, what it is and how to get it". All of these go into detail about suspension setup and theory, and once you understand it well, you can do cool stuff. Get the car as light as you can first, and keep all the weight you have to keep inside the wheelbase if you can. Spending less than $100 total, I made my LS400 Lemon handle as well as the Spec Miatas I ran with on my first try (sig has build website)

Thanks for all the replys.  I will be doing some reading and will work on the bigger swaybar and negative camber up front.

I have raced a 92 Grand Prix with the 3.4 DOHC engine in 5 Lemon races (Petty Crapheap Experience).  Its a very different set up than that of the JB Weld team.  They have a newer model a 97 Grand Prix (we have pitted next to them, they have an awesome car, but little applies to this model). 

Our car handled so bad the first couple of races that most of our drivers could not keep it on the road.  It had lots of power, but that tail wanted to come around if you turned while on the brakes, and really could only be saved with throttle.  (I actually liked driving it this way, but my other drivers could not get a handle on it)  It took a few races for me to get the handling worked out for them.  We did put the car through a weight reduction. Cutting out the inside door panels, cutting the panels on the inside in front of the rear tires, and removing from the trunk all of the brackets and lifting devices as well as the sheet metal supports, and removing the bracing on the hood.  All of this gave us an additional 120 lbs of weight savings above what we got out of getting rid of the interior.

To make the car handle better, we stiffened the rear by adding a much larger new rear sway bar that we got off of ebay.  Then I took some Miata springs and put them on the rear struts which we held up with exhaust clamps on the strut itself.  This completely made the car neutral, and very easy for any of my drivers to handle it.  There are some kits out there that get rid of the leaf spring completely, but cost made it prohibitive.

The rear camber can also be adjusted with Ingalls cam bolts.  The front is in dire need of camber adjustment, but we did not find a solution for this.  We found that our front tires got really chewed up on the outside edges.  This car has a strut that is captured and built into the hub, that can only adjusted with camber plates that I only know of one company that makes such a set up.  But that gets really expensive and would have the judges all over you.  Here is a link

http://www.overkillengineeringmotorspor … body2.html

Rear sway bar Addco 474 is the 7/8 inch bar that we used, it is almost double the diameter of the factory bar.

http://cgi.ebay.com/ebaymotors/88-96-Po … 483789cda4

I still need to move some weight into the back of my car: