Super Stock spring car many many years ago. Stock crank, TRW pistons, 906 heads, and stock rods so yes they will work. Would I pick them if I was building a 9 second car from scratch again? NO!!!!!!!!!

I believe 572Shawn (Member here) has been as low as 9.50's on leafs and truck shocks.
I knew of and saw a leaf sprung RoadRunner up from Connecticut that raced quite a few times on the street and it just barely nipped a bonafide high 9 Buick Stage 2 one night. RR was all lopsided with its traditional SS passenger rear up and had the weirdest shocks, but it took my lunch money and my Boys since we were betting with that Buick.
I know, I know, That's what you get for siding with the dark side, but business is business.
Buick actually was gutted and had boxed A-arms out back and some trick coil springs and that thing would leap frog out of the hole. But on that night, that RR was sitting with him all the way till he just nipped him at the Amen corner.

7 pages worth of discussion regarding super stock springs in 2017....absolutely mind blowing

LOL

"I know someone" who has ran 8s on ss springs

I know right.......LOL!!!! I might start a Dana thread next and then an iron head one as well.......LOL!!!!

My dads Challenger was a SS/GA record holder in the 70s. Outran Paul Rossi more than once in class runoffs. We had a 9" ford, homemade spring packs and no snubber.............Oh nooooooooo............LOL!!!!

Might as well do one on mushroom cams while your at it

How about a STICK vs AUTOMATIC?
Both types have to be on SS springs of course. LOL.

I get a kick out of how some of the guys laugh at our old ways but STILL can't run as fast as we did with this junk many years ago. LOL. Many of us have moved on and go even quicker now but many run top of the line equipment and STILL go slow.

Here's the loaded answer; I'm still on springs.

Me too BUT not multi's and aren't you on Landrum's...........

Would love to see those aero tricks Mr Lee...........

You can make a car run or you can't. You can make a car work or you can't. It's about using what you have and knowing what to do with it........the whole POINT of this thread was to point out the lack of "Magic" parts. And whatever some say, there is nothing magic and or special about SS springs. They were simply configured right for the job they needed to do from the factory, so were an easy bolt on. If you KNEW what you needed and how to do it, you could achieve the same in your garage. The reason I started it? countless suspension threads here and the overwhelming "fix" is you need SS springs and rancho shocks. Like that is going to magically fix everything. Here is a thought. How about evaluate the car and the problem and figure out what the car NEEDS before throwing parts at it, because they worked great "back in the day". This isn't the 70s. Everyday streeters have more HP than most Super Stock cars back then and have more power than most early Pro Stocks had as well. Plus we know tires are tracks are WAY better. And we also know Pro Stock went away from leafs nearly immediately, yet we think that's what everybody needs now????? How does that even make a little sense.

My GTX went low 8s at 3200lbs over 20 years ago with a 446" motor. Everybody is "wow, that's fast, how did you do it". The point is DON'T do it like I did. The car could have been lots faster knowing what I know now. The point? While it worked ok then may be fine for some, there are MUCH better ways to do things NOW. Personally, if I built something now, that worked or ran as good as it did 20+ years ago, I would be seriously disappointed. If for no other reason than tracks and tires are light years better. Not to mention all the other things that are better. So even if you did build something "just like we did back in the day" it SHOULD be faster now...........most aren't. Why?

Come on Monte.. we know you cant make a set of
springs work that you build in your garage.. it
was said above it CANT be done... LOL... you have
to spend millions of bucks

If all we cared about was how to get the quickest possible ET in the most efficient and cost-effective manner, I don't think we would be messing around with Mopars that are a half-century old.

I think it's cool that some of the technology that was developed by Chrysler engineers over 50 years ago still works well up to a certain level because the physics they figured out years ago still applies.

since everyone knows the SS springs in this thread.

who can tell roughly how much arch they have? the 3400lb Bbody springs...

i see landrum has a few different springs for chryslers in 5" and 6" arch...

Mine were 6" arch

Yep. Landrum Launchers. They are snappier than any SS spring I've ever had. Only about 4 Lbs heavier for each as well.

Not for nothing, but a real street driven Duster in our club with a full interior, stereo, real pump gas drinking small block with iron RHS heads, all steel except the front bumper and double hump factory scoop scoots to the tune of high 10's on raggedy Mex-tec SS springs.
I would guess that the latest Cal-trac system is simply a stiffening ladder bar from the center line to the spring eye along with tuning thrown in. Perhaps, that is the point that the SS made back then, but with much better resistant steel material.

oh, on Aero? I don't have much in that department, other than the rear bumper air dam and though I know a thing or two about some slippery tricks but have not applied them....Yet!

My deceased Father-in-law worked the Chelsea proving grounds during the Superbird/Daytona campaign. We had a few conversations while in Detroit over the past few years.

this is them?

http://www.hotrod.com/articles/lightweig...-aluminum-wheel

Landrum has multi-leaf Chrysler leaf springs. But the "Launcher" term was used in association with Tri-City Competition springs by Greg Luneack, as noted in that Lightweight Coronet article. He's suppose to be in California now, but don't know if he still makes them. I don't believe "Tri-City Springs" in NY is related in any way.