My TB records show the 1.24 TB as 425 lbs. I know there is a multiplier for ~conversion of TB to coils. Coil springs at ~600-700-800 and some higher are not uncommon for GM and Ford.. for the serious setups.

Actually Mitch, that sounds right because I recall the 1.22 bars I have are rated at 400#, so it stands that the .03 difference would be a skosh heavier.

I forget the exact motion ratios on the 2nd gen Camaros I used to run but it was either 45 or 55% of rate because of spring pocket location to pivot location. Suffice it to saw for a swag, its was half the springs rate was actually applied to the tire. Fords would be a bit different on top of that. When I was running high banked ovals, we routinely ran 1000-1100# springs in the right front with 800-900# in the left.

Good Job Mitch!

Looks like a slot car in the video.

Also what's weird is the chassis book lists the 1.22" bars at 350#
Firm Feel lists their 1.18" bars at 338#

Congrats Mitch! Wish I could have been there but I was spinning wrenches getting ready for Road America next week. Mitch has been the lone flag bearer for mopars on the track here as of late as my Barracuda did not make it on track last year. There is another event at Autobahn the first weekend in October that Mitch plans on running and pacing again. I have committed to having my Barracuda racing that Sunday and it would be great to get a mopar paddock together so anybody within driving distance please give October 4th/5th your consideration. I know it sounds far away but you know how that goes.

Mitch you are the Man!

Better check them spot welds.

Awesome Job Mitch, the Challenger sounded and looked Great!