Re: 68 dart - street / strip suspension
[Re: 69dart]
#2683023
07/31/19 10:28 AM
07/31/19 10:28 AM
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Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,206
New York
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What you want is the best axle control with the lightest possible spring rate. An SS spring set will put your head into the roof if you drive over a gum wrapper.
Boffin Emeritus
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Re: 68 dart - street / strip suspension
[Re: polyspheric]
#2683035
07/31/19 10:47 AM
07/31/19 10:47 AM
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Joined: Jan 2003
Posts: 20,744 A collage of whims
topside
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,744
A collage of whims
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The Calvert setup seems to be on every leaf-spring car in Stock and obviously works. For the 12s, there are hundreds of guys running stock or SS springs, in fact into the 10s. You can put a SB A-body drag car on its rear bumper with an SS setup & roundabout 640 HP, done it. The Calvert setup is more consistent and adjustable, though, and apparently bulletproof. As for the ride, I haven't experienced any issues with the 002/003, was fine in my BB street/strip Duster. They don't really have that much spring rate. But if you add leaves, they definitely stiffen up.
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Re: 68 dart - street / strip suspension
[Re: topside]
#2683042
07/31/19 11:08 AM
07/31/19 11:08 AM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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If you are doing much street driving the Competiton Engineering Slid-A-Links are a far better bar. In fact I'd take them over the CalTracks any time.
If you want the best bar, the Asassin bars have the most adjustability. Not sure how they ride though.
Last edited by madscientist; 07/31/19 11:09 AM.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: 68 dart - street / strip suspension
[Re: 69dart]
#2683058
07/31/19 11:44 AM
07/31/19 11:44 AM
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Joined: May 2005
Posts: 1,030 ohio
67mprfan
super stock
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super stock
Joined: May 2005
Posts: 1,030
ohio
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My Cal tracs ride on the street isn't bad I'm using their rancho shocks turned to about 5 on the settings and it's comfortable
71 demon stock stroke 440/indy ez-1 running 10.10 @ 132.14 mph in the 1/4 and 6.36 @ 107.46 mph in the 1/8 not in the same weekend but It did it then I sold it. 67 Belvedere that worked it's way in the 10's
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Re: 68 dart - street / strip suspension
[Re: DusterKid]
#2683076
07/31/19 12:19 PM
07/31/19 12:19 PM
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Joined: Jan 2003
Posts: 11,706 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,706
Portage,michigan
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Ran 9’s forever with 002/003 leafs( and was ultra consistent) and the car drove like a Cadillac on the street. Zero issues with a “ rough” ride. For a 12 sec car i would get some adjustable shocks and go have fun. No need to reinvent the wheel at that power level, and use the springs you already have
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: 68 dart - street / strip suspension
[Re: 69dart]
#2683117
07/31/19 02:08 PM
07/31/19 02:08 PM
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Joined: Jan 2003
Posts: 14,492 So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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I’d just get some replacement 340 springs.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: 68 dart - street / strip suspension
[Re: fast68plymouth]
#2683243
07/31/19 09:32 PM
07/31/19 09:32 PM
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Joined: Dec 2013
Posts: 4,664 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,664
Wichita
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I’d just get some replacement 340 springs. Yep. Good plan. Unless you plan upgrading the engine later on. Then go with Cal-Tracs. 5 setting for street and 9 for strip if you use their shocks. A good set of 90/10 shocks up front does wonders for traction!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: 68 dart - street / strip suspension
[Re: fast68plymouth]
#2683284
07/31/19 11:16 PM
07/31/19 11:16 PM
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Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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I’d just get some replacement 340 springs. That's what I would do. All I use on my 63 Sport Fury is the MP 3400 lb rated Super Stock springs. And the car rides great and does not bounce all over as its a nice ride and I drive it everywhere on them. I know some say their car rides rough on SS springs and I don't know which ones they use but my 63 rides great on the 3400 lb SS springs and does not bounce at all as it rides like a normal car. I don't even have adjustable shocks on the rear as I just use the longer ext MP shocks. It drives great and works fine at the track for a mild street/strip car as it hooks good and has run 10.70's with a best 60 of 1.50. Nothing out of this world but they work good for what I do. You put a good set of stock springs or even the SS springs and that will work fine for what you want. You can put a good adjustable shock on it or if not use the longer ext shocks. But for a 12 second street car you don't have to spend a ton of money on suspension. Just a good basic leaf springs and shocks that work will be fine for what you are doing. Good luck what ever you decide. Ron
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Re: 68 dart - street / strip suspension
[Re: racerx]
#2683393
08/01/19 10:47 AM
08/01/19 10:47 AM
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Joined: Oct 2003
Posts: 11,684 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,684
W. Kentucky
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What's the name of those rear shackles that slides back and froth which make the SS spring sit lower can't think of the name right now, but I think those would be an option as far as ride height. Sliders. https://www.speedwaymotors.com/Speedway-Heavy-Duty-Chrysler-Type-Leaf-Spring-Slider,5817.html
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Re: 68 dart - street / strip suspension
[Re: fast68plymouth]
#2683394
08/01/19 10:48 AM
08/01/19 10:48 AM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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yeah, i would do the same. I don't know what shipping would cost, but there are THESE on sale at mancini, supposedly made for Mancini by ESPO. the other option is buy the Mopar XHD 340 springs from Summit and get free shipping.
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