Originally Posted by
Char1ie
You're right - can't change the beam as the "pick-up points" cannot be changed so arm mounts, beam mounts must be original. I have braced the centre of the beam to stop it flexing and connected it to the roll cage in the floor. Three door hubs are OK, coilovers are OK, compression struts are allowed but not adjustable TCAs, bushes can be standard or poly. I have adjustable top mounts. ARBs are free I think but I use standard Sapph front and back.
At the moment it turns in well but has a bit too much power on oversteer so need to work on the back to try to iron this out - may go lower and softer dampers next time. Also I should lower the front a little bit more.
Charlie
Interesting stuff Char1ie - I assume as you have used bracing things like strut braces and Adrenaline chassis connectors would be allowed ( but might be superfluous seeing as you have a roll cage already ). Are you allowed to shim suspension points to change camber. Interesting about adjustable top mounts and compression struts ...but not adj TCAs. So you can introduce more caster and camber via comp struts & mounts ...but not on the arms themselves? I guess going lower with a standard beam will get you a camber increase anyway. What tricks do the E30 boys use as they have fundamentally the same problem with their geometry, albeit a less severe rear arm angle