Subframe spacers?

[BruceBe]

i assembled my car yesturday with the spacers and the motor is so far down and back I think I will leave them in.

Because the body of the car was raised by the spacer thickness.

[BimmerScreamer]

i assembled my car yesturday with the spacers and the motor is so far down and back I think I will leave them in.

[BruceBe]

I machined a set for my M3 project... the car's not finished yet, but I can't see where there would be any safety concerns. I milled mine from 20mm T6061 aluminum and turned the locating pins from steel. Longer metric hardware and it all bolts together as if they were not even there...

Garey

I agree with Garey - not a significant safety concern, as long as the spacers are made of sufficiently hard material, have a generous surface area, and the fasteners are correctly sized.

For the track, I didn't want to raise the relative height of the body with spacers, and then have to chase the resulting changes in roll axis, rake, CGH, etc. However, there is no free lunch, since I am now in the process of solving steering shaft clearance issues with the X5 exhaust manifold. If the manifold was about 20mm higher, everything would be OK. My hood clearance is also tighter, as a result of not using a subframe spacer.

-Bruce

[bmwmech1]

I machined a set for my M3 project... the car's not finished yet, but I can't see where there would be any safety concerns. I milled mine from 20mm T6061 aluminum and turned the locating pins from steel. Longer metric hardware and it all bolts together as if they were not even there...

Garey

[BimmerScreamer]

front

[bmwmech1]

front or rear?

[BimmerScreamer]

Is anyone using them? Would it be a safety concern?