What is the best way to install sub frame connectors? What is the best material size? This will be my first time welding any connectors in! Thanks!

And what is everyone opinion on the best TIG welder, Miller or Lincoln?

If you go out and buy weld in connectors, most of the time you end up having to cut open the floor pans to make more for this type of connector. The easiest way is to buy bolt on connectors and just weld them inplace. I had a set of CE bolt on connectors and they worked fine.
But if you want to use the weld in type,use a 220v mig. A lot of people like Miller or Lincoln. As for the material, you can use 2"x3" mild tubing.
Bruce www.geocities.com/rolandracing/index.html (http://www.geocities.com/rolandracing/index.html)

I used CE bolt on bars amd took the car to a good speed shop to be welded on. The shop took about a hour squaring the frame before welding in the units.

I think this method works great and is much cheaper than a shop doing all the work.

I dont know if welding the connectors yourself could cause alignment issues later.

take a look at this website for excellent pics:
http://www.racehome.com/techsubframe.htm

Search this site : Brakes/suspension section for tons of info

Good pics. Wished I could see them a little better under the car.
I'm still confused on bolt-in SFCs. Do they bolt onto the inner side of the front frame and then where do they attach at the rear?
Then on the weld-in, do they attach at the same places? I guess the main difference is they set up higher and are a straight shot front to rear which is why you have to cut out the floor?
If a guy could fabricate the 2x3 tubing to follow the floor contour, could he have weld-ins without cutting up the floor. Maybe weld them to the floor.

Look at CarlC's post. He has some nice pictures how to do it. He uses straight 2 by 3 tubing. I dont think you can do it without cuuting the floor because it will not structly sound. look under there you will see what I'm tallking.
I will do the same thing in my car, but what I will do is have the tubing cut, bend and weld to follow the contour of the floors sort of like the Detroit Speed connecters.

I did a serch, and saw some pics with dimensions, are the angles the same like a chevy bow tie, or are they different, as in do they angle towards each other?

I will be welding mine in on a jig to answer the post further up about the car being square.

The DSE connectors are sectioned tubing so that they follow the contour of the floorboard better than the straight type. The floor still needs to be cut.

Both of the agles are rotated in the same direction. However, they are only approximations, they still must be trimmed to fit.


------------------
The Red Beast http://www.geocities.com/casanoc