What’s the Ultimate Fix for Chasis Flex?
Having the chasis welded by rabid English structural engineers
The rear cross member is made of folded metal. Chasis flex is what happens when this member is under heavy loads. The fix is to have Peter at Crayford Coachworks, in Marina Del Rey (310-577-9830) with years of experience reinforcing the Porsche GT2 race cars, go wild. They choose to seam and stich weld a new member into place that had been reinforced with steel tubes. They also seam and stich welded other areas of the frame. The frame of most cars such as BMW, Porsche and Mercedes have little spot welds when they come from the factory. These little welds do not last if you drive your vehicle hard and have a large object hit the underside of your vehicle.
Why I choose to fix my frame
If you find that you have to have the rear lower suspension replaced, you might as well take advantage of the opportunity and have them seam/stich weld the frame. They can also reinforce the rear cross members. I had a large object hit the underside of my vehicle. The Frame had cracks that started from hairline cracks into what you see to the right.
The strongest M Roadster Frame in the World!
Not happy with the way BMW attached the differential, they decided to reinforce that as well. Now I am ready to add the MechTech Turbo Charger!