do you set up a torque arm rear like a 4 link? meaning upper control arms and lower control arms intersect around the front lower ball joint? do you just pretend the torque arm is the UCAs and intersect its line with the LCAs at the front lower suspension? or am I totaly off base? I made LCA relocating brackets with a couple choices and I am attaching the torque arm to an adjustable mount on my cross member. help a traction problem out! my 60's are disgusting and I think a little of it can be blamed on my LCA's pointing at the ground. HELP!

 

torque arm rears are not setup the same as 4-links (no intersection points and caster settings. Basically the LCA's should be set close as posible to paralell to the chassis while under thrust (torque squat)- to a point as level as posible without having wheelhop).

The torque arm length is what helps or hurts launch traction. A shorter torque are will move the car's instant center more towards the rear. This will allow for a greater leverage of weight transfer up and backwards onto the rear wheels for traction. Shorter arms had better be combined with 90/10 shocks and a lightened frontend to help promote the up and backwards weight transfer- otherwise, too heavy of a nose with a short arm will not get the cars rear tires up under and lift the front (unless you are running big HP and slicks) A shorter arm will promote more lift of the rear suspension to counter act the thrust squat. Everything needs to be balanced for your particular weight, suspension/chassis, tire, and motor combination.

Full streetcars- I'd strongly recommend Spohn's TQ arm setup

full race (Lightened car)- Id suggest a BMR or Globalwest setup.