My version of a inner fender support/front subframe stiffener

HemiDenny said
sorry...but I wouldn't put that Magnum Force brace on my lawnmower...I think if it is just plated and tied to the sheetmetal firewall...well, lets just say there are better ways.....now...if you tied it to a roll cage, you might have something. But then you better have some hefty HP..and were not talking "street car"...so I guess we are back to the start

It would definitely be stronger tied into a roll cage. But, if its plated well to the firewall, it does a lot to strengthen the front then. The front frame rails on these cars are basically just cantilevered off of the body, there's nothing other than a flimsy stamped sheet metal brace from the shock mount to the firewall to resist upward bending at all. Because the Magnuforce brace is tied in high,and near the corner of the firewall (also near the reinforced A pillar), it will actually resist bending pretty well. Not every car needs a cage, but why do you need "hefty HP" to want your car to plant all 4 corners without tying itself in a knot? Modern tire compounds are a whole different world from the tires that were out there when these cars were designed, you didn't need a stout frame because the tires would let go long before they started to stress the frame/body. Not so anymore, with 1" torsion bars, better shocks and wider tires, the flex in the body is an issue. In a drag race setting, with the rear tires hooking and twisting the car, you're reinforcing the frame to try and keep the BACK of the car from twisting. The front of the car flexing up and down is a non issue in a drag setting, as long as it doesn't flex so much side-to-side that you can't keep it off the rails you're good.

inkjunkie said
Granted it is an E-body but if you click on the video link here looks like there is a crap load of flexing going on.......unless that is my imagination as well.....

I think their method highlights what they did to the car (and why wouldn't it, they're trying to sell a product), but it definitely shows that these cars do flex quite a bit...