I'm road racing an Evo 1 with the stock open front diff, viscous center diff, and plate lsd reaar diff in the rear. The car has about 400 hp and I get wheel spin and excessive tire wear particularlly on the front tires, not to mention oversteer. I am thinking of upgrading the front and possibly the center diff to lsds. I am considering either the cusco plate diffs of the quaffe a.t.b.'s Does anyone have any tarmac experience withe these diffs? Also what torque split does the quaffe center diff have? I think the cusco is 35/65.