Just thought i would share my experiance with a body roll problem i had once i started to go faster,
As you will notice in pics engine loves to twist the whole car putting all its weight onto one rear wheel. wich can be very dangerous if you loose traction on the left wheel.
So to cure this i insalled a Anti-roll Kit By Mc donald Brothers. The kit definatly works but was a headace to install.
the main bar is solid and runs between two bearings, then two solid alloy arms bolt to it and attach two the diff via adjustable rods, This alows the suspention to freely move up and down but will not allow one side to squat. ( Thus keeping weight on both rear tyres) And with the adjustable rods you can adjust the preload on the side you want.
The kit is suppost to be good for a few tenths down the quater becouse when you car lifts and twists it looses its momentem. It also stoped a bad axle tramping issue i was having when doing top gear power skids,
A few cheaper ways to acheve a simular result is either a air bag or pump up shock on the drivers rear, But both of these will limit the ability of the cars arse end to squat down wich increases traction.
Hope this was helpfull
