Steeda Torque Box Braces?

[rown4au]

I have these and they are welded in, or are supposed to be be but I have not had the car on jackstands to check it visually since I got it back. I had everything welded in as I wanted to car to be as stiff as possible due to the increased horsepower.

[Super Snake]

Here are some pix of mine bolted it
So far So good

[JTB]

Originally Posted by ItalianStallion

The experience I have with various types of chassis stiffening parts is that over time any bolt stiffening device will move and eventually elongate the bolt holes and cause the part to move around or flex. Over the years, the circles of master mechanics that I have hung with all state the same thing--There is no such thing as an effective chassis device that "bolts-in". This stuff must be welded to work as best as possible. Lots of folks don't own a welder, so manufacturers must make an option(bolt-on) that the bulk of the population would purchase that they can install with little to no hassle.
go with the true part that welds in. just my 2 cents.


IS

+1

Failed fasteners are also an issue with these bolt on chassis parts...

[Super Snake]

Given the size of the bolts installed I'm suspicious about the loads shared by bolting these 5 attachment points are great enough to fail the bolts in shear. I would agree welding the brace would distribute the loads more efficiently providing addition stiffness. I will rule out drag strip launches where as the aft bolt may yield in tension where the chassis could be subjected to large doses of torque.

[JTB]

Originally Posted by Super Snake

Given the size of the bolts installed I'm suspicious about the loads shared by bolting these 4 attachment points are great enough to fail the bolts in shear. I would agree welding the brace would distribute the loads more efficiently providing addition stiffness. I will rule out drag strip launches where as the aft bolt may yield in tension where the chassis could be subjected to large doses of torque.

SS...do you notice a big difference in ride quality with these SS?

Is there less chassis flex, roll etc, when you turn in?

Any increased harshness when just driving around town?

[Super Snake]

Originally Posted by JTB Consulting

SS...do you notice a big difference in ride quality with these SS?

Is there less chassis flex, roll etc, when you turn in?

Any increased harshness when just driving around town?

I have only driven the car twice since all the mods, only once with any agression. my answer so far is I notice an increase in NVH which I would contribute to additional stiffening.

I have changed so many things at once I can't give a good assessment of any one component. I need more seat time.

Science would prove bolting these braces in will provide only a fraction of chassis stiffness compared to welding.

[gr8snkbite]

Originally Posted by Super Snake

I have only driven the car twice since all the mods, only once with any agression. my answer so far is I notice an increase in NVH which I would contribute to additional stiffening.

I have changed so many things at once I can't give a good assessment of any one component. I need more seat time.

Science would prove bolting these braces in will provide only a fraction of chassis stiffness compared to welding.

NVH comes with the territory...not much though...mine are not welded, and the cars been launched pretty hard a few times, so far so good..but its nothing compared to a road course event...

[Super Snake]

Originally Posted by gr8snkbite

NVH comes with the territory...not much though...mine are not welded, and the cars been launched pretty hard a few times, so far so good..but its nothing compared to a road course event...

True, you have to accept a higher degree of NVH as you better your car for the track. One has to determine how much is acceptable to their liking.
I have never participated in a 1/4 drag race... I personally have to have left and right turns, on the brakes, on the gas over and over again. I do however have a ton of respect for some of you guys and your reaction times and ability to get down the ¼ mile in a hurry… that is BAD A$$