I have been doing research and have come to the answer that 2"x3"x1/8" steel tubing will be enough strength for the motor. Looking to produce around 400-450hp. would this be strong enough for this motor, just need to be sure

I can't believe 1MechEng hasn't looked up the shear force, tensile strength, and torsional strength of the tubing and presented a page or two of formulae and calculations.

Maybe PM him to get his attention.

Yes that will be ok

What I am wondering is WHY any one would wanna do this on there own when company's like Jegs are out there that have already engineered kits for most all the cars you wanna do this type of build too already welded or unwelded all engineered to your choice of suspension choices Strut suspension, strait axle, A arms & coils, or wishbone all your choice with it all shipped strait to your door cheaper, faster and safer than you can do it yourself???

Plus the Web sight is Autobody101 not racecar101

Doright wrote:What I am wondering is WHY any one would wanna do this on there own when company's like Jegs are out there that have already engineered kits for most all the cars you wanna do this type of build too already welded or unwelded all engineered to your choice of suspension choices Strut suspension, strait axle, A arms & coils, or wishbone all your choice with it all shipped strait to your door cheaper, faster and safer than you can do it yourself???

Plus the Web sight is Autobody101 not racecar101

Well, its the challenge of building a car, what can I say. I love the challenge, Trust me seen it and looked at options. Also, this is the metal and fab forum, which this falls into that. I know without a doubt I can weld a frame up plenty strong, I have spent many years on the water front doing ship repair. I have a local steel shop that I can get all I need to build it and it would be cheaper, my labor if free and time doesnt matter to me.

Technically this is welding and metal fab. I fix trailers at my work and do fabrication. I'm still classified as a bodyman at work.

I would not hesitate to build my own frame for anything. Most kits are generic and unless its specifically for your car or truck it likely has to be made to fit and is a compromise.

You can make anything with a mig and a chop saw, plasma cutter is nice.

ChevyC10 65 wrote:

Doright wrote:What I am wondering is WHY any one would wanna do this on there own when company's like Jegs are out there that have already engineered kits for most all the cars you wanna do this type of build too already welded or unwelded all engineered to your choice of suspension choices Strut suspension, strait axle, A arms & coils, or wishbone all your choice with it all shipped strait to your door cheaper, faster and safer than you can do it yourself???

Plus the Web sight is Autobody101 not racecar101

Well, its the challenge of building a car, what can I say. I love the challenge, Trust me seen it and looked at options. Also, this is the metal and fab forum, which this falls into that. I know without a doubt I can weld a frame up plenty strong, I have spent many years on the water front doing ship repair. I have a local steel shop that I can get all I need to build it and it would be cheaper, my labor if free and time doesnt matter to me.

Still with out an engineering degree and a lot of experience Its not something I would want to take on without the help from a company like JEGS or Detroit speed or the many many others out there. They all make kits that are ready to weld in or on and are well engineered stuff to perform. not saying you cant do it or that it wouldn't be fun.
Just me but I would rather start with a pre engineered kit.

You don't need an engineering degree to fabricate a simple ladder frame. Depending what suspension setup you want to use all the engineering in that aspect is done for you. Pick your suspension kits and build a frame.