lowering lower A arm inside pivot, ? question

 anyone know what might happen, if i lower the inner A arm one inch? i am looking for some room, for my ecotec conversion on my alfa romeo spider..it has a drag link in the middle section, need to lower this so the  clear the oil lan and A arm pivot..

i can remove the lower A arm mount from the car. pit the spacer between the bodyshell and A  arm mount

Is this a double wishbone or a strut setup?

This will have terrible effects on the camber curve during roll. You need to measure the position of the inner upper and lower pivots and their relationships as well as the arm lengths and static ride angles, then input your proposed change to see what happens. It won't be pretty, I know these cars reasonably well.

these welds are not easy. i am, welding inside the engine bay. folded up. the box in the centre is ,1 inch x 3 inch x .160

In reply to Alfaromeoguy :

Find out for your self. Make a stick version of  the linkage. Then move the spindle up and down through the range of motion. Then drop your lower arm as you mention and compare the curves. You don't even need sticks use plastic plumbing or cardboard. 

Would a custom made drop drag link give you enough room?

In reply to NOT A TA :

afteri install the engine and tranny into the car. o will have a better idea.. thats why the new crossmember,, , thank you for the help.. i am useing qa1 5/8 rod ends.. i can get longer crd 8 bolts to fit... the rod ends will sit on the shnak, not the threads

frenchyd said:

In reply to Alfaromeoguy :

Find out for your self. Make a stick version of  the linkage. Then move the spindle up and down through the range of motion. Then drop your lower arm as you mention and compare the curves. You don't even need sticks use plastic plumbing or cardboard. 

Or plug in the new values on this free online suspension simulator:

www.vsusp.com

Short version, you will lower the front roll center a lot, which will reduce effective front roll stiffness by a lot and you will need to make up for that with much stiffer springs or sway bar or both.  By lowering the front roll center without lowering the rear, you'll also make the car feel kind of like a four wheeled Reliant Robin in corners, even after you bring the front stiffness up.

i will lower the rear roll centre,, going to remove the T bar that connects the bodyshell  with the top of the diff.. with a panhard system, centred on the centre line of the rear axle,, this will lower the rear end about 6 or 7 inches