^yep I totally forgot about the E153 feels like its made out of lead compared to the S54 + physically bigger. If anyone has taken the stock iron downpipe and Cat and associated brackets off a CT26 they will damn know how heavy it all is!! not to mention all the IC piping as well it all adds up.

Senol

At the fulcrum MR2 day about a year ago my N/A SW20 was corner weighed and it was about 56 rear and 44 front. That's pretty different to 65 rear and 35 front adrian was talking about?

Sounds about right, I have seen spec sheets somewhere listing 56/44 for the early model NA, and 58/42 for the turbo.
 
 
 

I'm by no means an expert, but I did my first track day on the weekend.  I found the best way with my setup  (gen2 turbo running 14psi Willwood front brake upgrade, stock gen2 rear brakes, BC coilovers set to full hardness both front and back, 215mm tyres front and 265mm rear),
was:
 
a sharp stab of the brake to move the car more onto the front wheels just before turning to get extra traction on front.
smooth throttle constant throttle until about 1/2-2/3rds through the corner and apply as much power as the corner dictates coming out.  
 
I found that this when managed with the right amount of throttle was good. I didn't experience any snap oversteer.  I did loose it once, but not in a big way, and didn't spin.
 
I definitely need to upgrade the rear brakes as locking up the front happened a few times, but not the rear (also my rear tyre width would have helped with that).
 
But I do want to re-iterate what others have said.  Go to a track day, try different things. You'll have a blast, and it'll be reasonably safe.  and modifying your car, will modify how it handles.  I personally haven't experienced snap oversteer in my car, I have experienced being fairly sideways, but at no point was it unmanageable.

I think your sharp stab of the brake might be the reason for your front lock up! You should 'set up' the car under braking but not stabbing on the brake.

Your brakes would have been locking due to dampner settings. Too hard will cause the wheels to lock. Softer is better

The corner weight of the MR2 is one thing, but before you can start picking the balance of the car, everything else must be set correctly.
The issue isnt going quick but getting out of a situation if one appears.
Do you practice on a sim?

What sim/car/setup do you use to practice. I need something to keep me sane waiting for my 2GR headers and mounts from the USA

Does Gran Turismo 5 + G27 count as a sim?

Works for me

I use Rfactor with the sw20 mod + g25 and you can download lakeside park, morgan park and even queensland raceway. Probably others, but ive  downloaded those because they are my "local" tracks.