full frame replacement for our unibody cars

Hack said:

I don't think people are generally "sore" about it. It just isn't a good idea from a money or performance standpoint. My opinion is that if you want to pay someone to hack up your car that's your business. I plan on hacking up my car at some point in the future, so I'm not going to tell you I think there's anything wrong with making changes.

But realize that your modifications will cost a lot of money to put back stock, and unless you are willing to spend a lot of time designing or adjusting the front and rear to work well together it will never work that well. You know the 80/20 rule - you can have a well-handling car with inexpensive and subtle modifications, or you can spend a mint for a slight additional improvement. The last bit of improvement costs a lot.

Your car will also be worth less money if you decide to sell in the future. So far from getting money back out, you will spend money to lose money (if that makes sense)

It would be cheaper to keep your classic as a fun car for nice days and buy a separate car for track days. You could pick up an 80s Fox Mustang set up for racing for less than a tube chassis would cost installed.

Again, there's nothing wrong with spending 2, 3 or even 10 times as much money to do what you want - but since you asked I figure it's my duty to at least make sure you're aware that that's what you are planning. Good luck!

Click to expand...