With my stang im basically working from the ground up...i was advised i should add subframe connectors and more torque boxes. I did alittle reading on these but still have a fuzzy understanding on what the benefits are, how many, and where to place these parts. Can someone please fill me in.

Thanks

 

Sub frame connectors are needed if you do hard corning as in a race track. They will stiffen up the undercarriage and hold the undercarriage in a one piece configuration without flexing so much. There are two types of sub-frame connectors, so do some research to see just how hard you are are going to be cornering that Mustang to decide which ones you need. For street use, you can start here. http://www.mustangsplus.com/Merchant...ry_Code=subfrm

 

Soaring is right, you definitely want weld in subframe connectors.
As much as I hate putting a plug in for these guys, the Mustangs Plus catalog has an OK write up on a torque box install.

(IMO) Really depends on what you want to do with your car. Yep, they'll make the chassis stiffer, which will improve longevity...somewhat. If you want to dump a bunch of HP in the car or do some roadracing/Auto-x, it will help to make tuning the suspension easier as well, as the chassis becomes less of a variable. There are also plenty of people having big fun with completely stock chassis.

Are you planning on a rotissery restoration? that would sure make it easier to weld in the torque boxes and sub frames.

 

Thanks guys for responding to my post....I want to make it a driver but at the same time i want fast ( 500 hp possibly). Like i said im a rookie so some of my questions might seem dumb. im still not to sure what the torque boxes do and where u can add more of them...tell me if this is right...they are a box like piece of metal that is behind the fender near the rocker panel. i was just reading something in mustang monthly about replacing them. I dont know if i will be using a rotisory yet because i was thinking about tackling this job myself and i dont have one. my friends dad said they would give me a quick lesson in welding and i wanted to do the quarters, floorboards myself, but i want to leave the frame to the pros.

 

That is a good basic understand of the torque box. Basically it is a box shaped structure you build that attaches at the subframes and the unibody. You can have them at the front like you mentioned as well as at the same spot in the rear, and on convertible's they are even in the center with a tie plate under the transmission tunnel.

The idea is to tie the front and rear frame rails into the body with a larger structure that distributes the tortional stresses over a larger surface area of both the subframe and the body. Making the chassis more rigid.

 

I'd do the subframe connectors for what it's worth. As I say that, I just had them installed on my car. I had a small torque steer problem and hope that this eliminates the problem. If it doesn't, I'll be at a loss as almost everything else on my suspension is new.

 

The torque steer problem may not be elimated with the sub frame connectors, but it will definitely improve cornering in a racing situation. Putting sub-frame connectors on a vintage street car is a waste of money. So, decide how you want to drive it before you make that expensive decision.

 

Soaring,

If the subframe connectors don't help with the torque steer, do you have any other recommendations?

Also, I'm only out about $100 for mine. The shop owner who helped me build my car has a metal fabrication shop in his family so we had them made and put on at a good price.

 

Oh, they might help some as will anything you do to stiffen the front end such as a decent torsion bar, Monte Carlo bar and export brace.

 

Guess we'll see tonight. I've already got a custom MOnte Carlo / Export Brace on the car and like I said it's noty a lot, just trrying to get the last bit out. Thanks.