Backyard mechanic answers. ...
I "think" it's all about acceleration.
Longer chassis moves you more towards more acceleration.
Shorter chassis moves you more towards better quick/easier turning.
Longer more side wing in the back moves you towards the wind helping hold you in in the turns.
Longer back end means you have to get farther ahead of who you passed before your actually past them.
That's why race cars tend to be short as possible behind the rear wheels.
We altered a chassis specifically for slick tracks to be able to put as much hp to the track as we could.
What we did and the theory used worked and still works. ...
Made what I like to call a sort of B altered/dragster combo minor/radical alterations and hoped the thing would turn. ...
Same altered theories and a new not so obviously yet new and radical change hopefully will be shortly applied to chassis.
Any change you make MUST be to either increase acceleration or get you thru the a corner better.
Think about if what you want to do will help either.
Lastly you don't know what it will do till you >do it<. so try it
You would still be running heavy junk hard to adjust axle clutches if someone didn't try a jackshaft, dry clutch combo. ...