Hi Guys
 
After having my car for a while, im starting to get things the way that I like them, and so apart from touching things up here and there, I wanted to change some of the things to do with its driving performance
 
Now these little cars are brilliant, and handle well, but I do notice they do understeer a bit when in tighter corners. 
Now this could be how im driving it, or just because the weight distribution is more rear-heavy, either way I was wondering what the best way to go about reducing the amount of understeer. 
 
Cheers

an 18mm rear swaybar will do the trick nicely to get rid of most the understeer, leave the front stock swaybar. 
 
but you will find she might get a little bit tail happy on really tight corners and in the wet especially, putting a fatter on on the front can balance the fatter rear, but will bring some understeer back into the equation.
 
wheel alignment when you have the rear bar can help keep it more stable from the oversteer tendencies. 

Thanks Wiso, ill have a look at getting a bigger rear bar, a little tail happy is nothing too bad! but I think a wheel alignment is a good idea.
 
Any idea what the stock size is? 
I may look at some slightly wider rims/tyres as well 

You should be able to get the car close to how you'd like it just with a wheel alignment. Also look at your tyres. If they're crap, you'll find that you can't lean on the front tyres enough to get the back to break loose. So with good tyres the car might be more balanced. 
 
My sw20 has ranged from ridiculous oversteer in every corner, to crap understeer in every corner (especially the tighter corners) with the only changes being made to the aligment.
 
When it was oversteering really badly, it was because I didn't have enough rear camber so the tyres were running on the shoulders and sliding everywhere. I added more neg camber at the rear and that worked too well resulting in heaps of understeer. After that, I added a small amount of toe out at the front (1mm per side), reduced the rear toe in to 0 and the car feels pretty balanced now. I still need some more camber at the back though from looking at the tyre wear. I've got an adjustable front sway bar which I can use to dial out any understeer/oversteer I might get from the alignment change.

yeah man, stock front is 17mm, stock rear is 10mm, if you have an aus delivered, SC models don't come with rear swaybars at all.
 
whiteline make an adjustable blade 18mm bar, or you can get your upgrade from an SW20 turbo, they have 18mm rear that fit the AW11 fine, you can either reshape the SW20 bushes to fit the AW11 d brackets, or you can just buy new 18mm bushes from whitline or wherever else.
 
I have SW20 turbo front and rear swaybars on my AW11. I think off an early model, but they are 18mm front and rear. that went quite well on stock springs, but I got new springs in now but haven't drove it much to see what the difference is. their fronts also fit with a little bit of shaping to the bushes

Adrian - Tyres look ok, but like you say as soon as it comes to the nitty gritty the front loses out way sooner than the rear (exception being a steep uphill on greenhill road when wet) Ill check my alignment, and see if adjusting any camber helps around the corners, especially if I get an 18mm bar in the rear
 
Wiso - Ill have a look if any sw20's are being split and see if I can grab their sway bars, if not whiteline seems like a good route, ill put them in and then get the tyres aligned, and see how the understeer plays up and see if i need to bring in a little bit of camber to clear up the problem. 
 
Thanks guys

ill be retrieving the swaybars from the 93 SW20 wreck now :) easy upgrade for my 87 aus deliverd aw11

Interesting read guys, I'm finding my car has similar tendencies. I know my tyres are crap and alignment is up the piss, something I'm looking at remedying soon. Considering 4mm total toe in on the rear, 2mm total toe out on the front, 5-6 degrees of caster and as much camber as they can get.

Are your tyres going to survive long with that!? lots of camber, toe in and out  im sure it will handle well though

MonsieurDeux
Are your tyres going to survive long with that!? lots of camber, toe in and out  im sure it will handle well though

Probably not lol! The car is mainly for weekend motorsport, won't really be doing much street time.