@MAT1955
What BMR had to say about those braces (which rust out like yours did and most people ended up just throwing them in the trash so they didn't have to take them off to work on the rear of the car):
I do not have the engineering or "scientific" data to back up my thoughts on this.
But...
So why doesn't the Dark Horse R have a strut brace?
companies like Vorschlag have said there is no measurable improvement in track times from a strut tower brace.
Strut tower braces don't do shit, especially stiffen a convertible up to coupe levels...
tires/alignment/imagination is where I would start
but it's kind of pointless if you don't have any recorded numbers for each car (skid pad, slalom, etc)
I like how they call it apples to apples but they have the stock exhaust on the Roush car and headers etc on the Whipple car...
Put longtubes on the Roush and drop a pulley size or two (to keep the boost the same) and run it again...
What kind of additives?
Most people will recommend a fuel system treatment like Techron or whatever brand you like, as long as it contains polyether amine (PEA)
Many people will also say if you run gasoline that contains the proper additive packages, you don't need to add a separate fuel...
Drag racing? No. Many people remove their front sway bar (or disconnect it) for the drag strip.
Road course? Maybe, but Ford has it dialed in pretty good on the sway bars that are included. So you're going to want to test to see if it's any faster.
Production TT V8:
C8 ZR1 (coming soon)
Cadillac Blackwing
BMW N63
AMG 4.0
Audi S7/S8
Probably a few others? Not counting things like the Shelby Redye or Lingenfelter/Callaway Corvettes
I'm sure they could just slap it on the GT500 engine. It'd hold it. But that would cost a ton of money to develop blah blah and they already have the supercharger like you said
And yes, the existing supercharged engine would probably be preferred by 90% of buyers