Be careful with your bench racing. I'm pretty sure there's a way for me to find two events to line up that would make my car the fastest car there is. I also think that your 1.5-1.75 is probably optimistic
When have you ever seen pessimistic bench racing.
and exceptionally course dependent. Example: I was .6 off of the class leader on the west course (momentum course) and I was 1.9 off on the east course which was a power course. I'm making 270 at the wheels.
Well true, but I'm not comparing my times vs the leaders, the guy who drove my car who's times I am comparing has 3 national trophies in ES (a 4th, a 3rd and a 2nd IIRC). The Vette driver has out paxed him multiple times in the past. So I've more or less eliminated my driving inadequacies... I see you have a 4th in STR 2 years ago, he may be a bit faster.
However, I didn't spend any time hunting for the fastest combination. I merely took the vette driver without examining other comparisons because he won the regional championship trophy and top pax 3-4 times in our region in 2012. Normally I would have used our top street mod car for comparison but they missed that race.
It is of course also very very true that for each step in a transitive relationship there is an error term and it may be that the course that day favored my car. Or the vette driver may have been on old tires ... etc.
50% more power is useful at times OTOH 15% more lightness acts over the entire course so the only true test is to build it and drive it. Hope I can find the funds to get there and develop (or recruit) the skill to do it justice
I have a 2008. I had to add 70lbs in the passenger area and roughly 30lbs in the front of the car by the sway bar. There is a huge cavity up there for ballast to be stored and you couldn't ask for a better spot. I also run the hard top, a big battery, a supercharger, a surge tank, a big exhaust, big wheels/tires, a wing and a stereo with an amp. At a full tank, the car is probably about 30lbs over weight right now. Before the wing and splitter, I HAD to run a full tank to make weight... I mean, I would take a fuel can to grid and fill up before my last run.
Anyway, go for it. It'll be cool for sure.
Is the huge cavity the steering rack tube? Or somewhere else? obviously putting the weight up front helps balance the car. I'm also curious what your max (sustained) lateral G measurements are. The number in my sig is the best I've been able to achieve in the logs I've taken, but 1.35-1.4 is more common. I ignore any spike that is more than .1 G higher than the neighboring measurements (those have gone as high as 2.8 but that's clearly the device wiggling around on bumps or something... I probably need to come up with a better mount or switch to something I can bolt down).