What am I missing? I thought the G8 and SS were both known for their excellent weight distribution (for a heavy 4-door front engine sedan)

 

Compared to most sedans with a 60/40, you are correct sir! Optimal is something else. My other replies to this thread will expand on thia.

 

Guess near 50/50 doesn’t work for everyone.

 

Mine is near perfect with all me junk in the trunk. It is a little fat on the driver's side, overweight on the driver's side, heavy on the driver's side. Umm, mine weighs less on the passenger side.
Actually they all weigh a bit more on the (US) driver's side, as the battery was strategically placed where it is by the Holden engineers to offset the weight of the (RHD) driver in AU.

 

This is my 1996 dog car, Fleetwood 8000 pound stretch Limo. That is a front frame brace and a 1 1/2" solid front sway bar. Matches the HA 1 1/2" solid rear sway bar. With full hard Koni's,
15 X 8" widened Limo wheels and 275/60-15's lap time @VIR = C4 Corvette. The 330 HP LT-4 w/aluminum heads gets a lot of the credit too.

 

AAAAAHHHHH HHHHHAAAAAA!!!!

THIS must be YOU,,,, AND,,, I just knew you would show up here,,,, eventually!!!!

🤣

 

My 14 Caprice PPV with only me (200lbs) is 51/49 front/rear within a 100 lbs difference front/rear. If I filled up the gas tank I imagine it would be exactly 50/50.

 

Absolutely right! Control for camber deflection, body roll and GM's goofy sway bar mismatched induced understeer=slot car.

 

Just posted elsewhere:
It is very confusing because BMR insisted on following Holdens lead when they labelled, they're over the engine (looks like a shock tower brace but mounts 10 inches lower) brace, a sub frame connector.
This is the one they used to sell as a Sub Frame Connector. I have their old links showing just that.
BMR Suspension STB012 - Strut Tower Brace, Front - 2008-2009 Pontiac G8
Maximum confusion ensued.
As it is welded to the sub frame when properly installed, it really is a SFC. Just not anything like what they also called a SFC:
BMR Suspension SFC013 - Subframe Connectors, Bolt-on - 2008-2009 Pontiac G8
Today I have both installed on my 2014 PPV's along with a Whiteline STB, parallel to the BMR one inch in front of it. No, they do not do the same thing as the Whiteline stabilizes the shock attachment point and the BMR IS a reinforcement of the subframe, along with this:
Adjustable Front Subframe Chassis K-Member Brace | 2010-2015 Chevrolet Camaro | eBay

"You want a belt and suspenders with that suit?" Early Marx Brothers quote.

 

Dug up the gravel company data:
After installing all the above braces and pulling out ~40 pounds of wire and replacing the back seat with the dog hammock:
Empty but with dual batteries in the rear on local gravel company scale:
cross body weight distribution
left side 50.64 %
weight on left front tire 1097 pounds
" " " " 1141 "

right side 49.36%
weight on left rear tire 1054
" right " " 1141

front/back weight distribution
50.27% front
49.63 % rear

 

Dug up the gravel company data:
After installing all the above braces and pulling out ~40 pounds of wire and replacing the back seat with the dog hammock:
Empty but with dual batteries in the rear on local gravel company scale:
cross body weight distribution
left side 50.64 %
weight on left front tire 1097 pounds
" " " " 1141 "

right side 49.36%
weight on left rear tire 1054
" right " " 1141

front/back weight distribution
50.27% front
49.63 % rear

Double check the weights shown as they're not adding up.