Page 1 of 2 1 2 >
Topic Options
#2400395 - 11/08/17 08:50 AM leaf spring front segment
sam64 Offline
super stock

Registered: 12/19/08
Posts: 1159
Loc: okla.
I am thinking about putting cal-tracs on my belvedere,should I stay with 20" front seg.or go longer?Springs are already moved into the frame so fabbing for longer springs is not an issue.Thanks,Sam.
_________________________
10.86@123

Top
#2400398 - 11/08/17 08:54 AM Re: leaf spring front segment [Re: sam64]
an8sec70cuda Offline
I Live Here

Registered: 01/19/03
Posts: 10133
Loc: Marion, South Carolina [><]
Longer. Use the chevy length spring.
_________________________
CHIP
'70 hemicuda...8.91 at 150.5 mph street car...Mopar Action feature Dec. '14
'69 road runner 446" w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'01 Ram 2500 QCSB 4x4 Cummins...toy hauler
'16 Grand Caravan SXT...baby hauler

Top
#2400463 - 11/08/17 10:29 AM Re: leaf spring front segment [Re: sam64]
Runnoft Offline
member

Registered: 05/18/05
Posts: 28
Loc: VA Beach, VA
I can't remember the exact front segment length but I'm pretty sure the spring for an S-10 pickup has the longest segment. There isn't one "Chevy" length. It depends on the model.
_________________________
66 Dodge Coronet 500
Indy SR 440
Gen 7 Accel DFI
3977 lbs = 11.38 @ 116

Top
#2400466 - 11/08/17 10:32 AM Re: leaf spring front segment [Re: sam64]
an8sec70cuda Offline
I Live Here

Registered: 01/19/03
Posts: 10133
Loc: Marion, South Carolina [><]
Pretty sure the length everyone uses is 25". Stock Mopars are either 20" or 22" IIRC. If you talk to Calvert Racing about the monoleaf springs, they'll tell you.
_________________________
CHIP
'70 hemicuda...8.91 at 150.5 mph street car...Mopar Action feature Dec. '14
'69 road runner 446" w/ Indy SRs
'69 road runner 440-6, 4 speed...Dad's ride
'71 Demon 340 resto project
'01 Ram 2500 QCSB 4x4 Cummins...toy hauler
'16 Grand Caravan SXT...baby hauler

Top
#2400514 - 11/08/17 11:51 AM Re: leaf spring front segment [Re: sam64]
therocks Offline
I Live Here

Registered: 01/20/03
Posts: 18781
Loc: Niles , Ohio
Dont forget 21 also The early models had it.My 65 B runs a 21 inch but now has 20 inch SS springs with the correct hangers.Rocky
_________________________
Chrysler Firepower

Top
#2400539 - 11/08/17 12:37 PM Re: leaf spring front segment [Re: sam64]
Quickrunner Offline
mopar

Registered: 03/10/10
Posts: 461
Loc: Indianapolis In. usa
I went with the chevy front segment length, its 25 inches. Calvert will help you on the phone with spring selection.
_________________________
05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project
2004 Jeep Liberty
09 Challenger R/T 6spd

Missin' my 9 second 70 runner!

Top
#2400651 - 11/08/17 04:35 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
Digby runs the 20inch still and his cars been 4.19 in the 1/8th.
I run the 20 also and have been 5.46 so far .

Top
#2400932 - 11/09/17 09:18 AM Re: leaf spring front segment [Re: sam64]
hemi_doug Offline
master

Registered: 01/21/03
Posts: 3364
Loc: Northern N.J.
So if you run a longer front segment do you have to compensate by moving the front spring hanger forward?
_________________________
71 440-6 4spd & 69 Hemi 4spd

Top
#2400942 - 11/09/17 09:40 AM Re: leaf spring front segment [Re: hemi_doug]
Quickrunner Offline
mopar

Registered: 03/10/10
Posts: 461
Loc: Indianapolis In. usa
Originally Posted By hemi_doug
So if you run a longer front segment do you have to compensate by moving the front spring hanger forward?


Yes, by how ever longer you go with the segment. To keep the axel in same location.


Attachments
IMAG2914.jpg

IMAG2921.jpg


_________________________
05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project
2004 Jeep Liberty
09 Challenger R/T 6spd

Missin' my 9 second 70 runner!

Top
#2401024 - 11/09/17 12:48 PM Re: leaf spring front segment [Re: a493demon]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
Ok I’ll bite. What is the secret to making the 20” spring work?
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2401081 - 11/09/17 03:10 PM Re: leaf spring front segment [Re: sam64]
Quickrunner Offline
mopar

Registered: 03/10/10
Posts: 461
Loc: Indianapolis In. usa
$$$ good shocks is my guess. On really really fast car anyway. Like custom Mencer or Santhuff.
_________________________
05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project
2004 Jeep Liberty
09 Challenger R/T 6spd

Missin' my 9 second 70 runner!

Top
#2401125 - 11/09/17 05:25 PM Re: leaf spring front segment [Re: Quickrunner]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
I still think the longer segment is the way to go but after talking with Menscer's tech they've convinced me they can make the 20" work. I even gave them the option of the longer spring and they said it's not needed. Since I already own the shocks its just the cost of the valving. I'm looking at the same money to relocate and (re)buy the parts for the springs.

I still plan on mounting the shocks straight up, and maybe move them to the front of the axle.

For the OP - I'd still go with the longer springs. I haven't heard anyone report regretting doing so.
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2401128 - 11/09/17 05:31 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
I did have menscer do the shocks on mine .
The DA afco's were at the limit .

Top
#2401131 - 11/09/17 05:41 PM Re: leaf spring front segment [Re: a493demon]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
Got it. Are you using the CalTrac bars, Assassin bars or something else?
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2401137 - 11/09/17 06:14 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
cals. took some time but with help from Demon gup over the phone we got it working .

Top
#2401221 - 11/09/17 10:16 PM Re: leaf spring front segment [Re: a493demon]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
Originally Posted By a493demon
cals. took some time but with help from Demon gup over the phone we got it working .


Good to know. Thanks.
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2401230 - 11/09/17 10:27 PM Re: leaf spring front segment [Re: a493demon]
GY3 Offline


Registered: 12/13/13
Posts: 2093
Loc: Wichita
Originally Posted By a493demon
I did have menscer do the shocks on mine .
The DA afco's were at the limit .


Was it the extension part you had to work on firming up?
_________________________
'63 Dodge 330
11.19 @ 121 mph
Pump gas, through the mufflers on street tires with 3.54's


Top
#2401233 - 11/09/17 10:29 PM Re: leaf spring front segment [Re: a493demon]
GY3 Offline


Registered: 12/13/13
Posts: 2093
Loc: Wichita
Can you give some details on your setup?
_________________________
'63 Dodge 330
11.19 @ 121 mph
Pump gas, through the mufflers on street tires with 3.54's


Top
#2401238 - 11/09/17 10:38 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
They changed both settings.
When the car was in the 10's the afco DAs worked good .
Now that it's in the 8s it just over powered the afcos the way they were valved.
71 Demon 540 on nitrous stock front and rear suspension mini tubed springs moved in 3 inches 28x10.5 tire .4.10 gears cope 2nd gear leave trans brake valve body .


Attachments
22555514_1915833818443793_6485996031545481797_o.jpg



Top
#2401293 - 11/10/17 05:26 AM Re: leaf spring front segment [Re: Quickrunner]
360tripleblack77 Offline
member

Registered: 10/29/15
Posts: 75
Loc: Gravataí, RS, Brazil
Guys, I'm really confused with this possibility to change front spring segment lenght.

My concern is about front hangers, I'm using relocation spring kit and can't see how I can move hangers forward as you can see in this example attached.

Pictures will be great!

Thanks


Attachments
Relocation_Assassin_01.PNG


_________________________
'77 Brazilian Dodge Charger R/T - Street Car
Footbrake, Pump Gas, SB Mopar 360" - No Power Adder
3300lbs, Leaf Spring + Assassin Bars
Best 1/8 mile ET
1.58 60' / 4.50 330' / 6.98@100.68mph

Top
#2401294 - 11/10/17 05:30 AM Re: leaf spring front segment [Re: a493demon]
Tig Offline
top fuel

Registered: 01/26/03
Posts: 2135
Loc: A garage in England
Originally Posted By a493demon
I did have menscer do the shocks on mine .
The DA afco's were at the limit .

Same here, it was worse after we put lowering blocks on too.
_________________________
'74 Challenger..9.46 and 145.9 so far, easy pass. 4000lb!!!# N/A, 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 4:10's and 10.5s. Marsh Performance pump gas 655ci.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 14.21@88.5 Best Mph 98.5

Top
#2401375 - 11/10/17 10:32 AM Re: leaf spring front segment [Re: Quickrunner]
hemi_doug Offline
master

Registered: 01/21/03
Posts: 3364
Loc: Northern N.J.
Hey Quick, how do you like those Assassin bars? Do you think they work better then CalTracs bar? They are identical in cost so i was wondering if one was better then the other...
_________________________
71 440-6 4spd & 69 Hemi 4spd

Top
#2401389 - 11/10/17 11:10 AM Re: leaf spring front segment [Re: hemi_doug]
Quickrunner Offline
mopar

Registered: 03/10/10
Posts: 461
Loc: Indianapolis In. usa
Originally Posted By hemi_doug
Hey Quick, how do you like those Assassin bars? Do you think they work better then CalTracs bar? They are identical in cost so i was wondering if one was better then the other...


Still building the car so no data yet. I liked the adjustability of them and there are some very fast radial guys running them. May not work any better than the caltrack but I liked them better.
_________________________
05 Ram 1500 Daytona package
71 Demon Gen3 hemi drag radial project
2004 Jeep Liberty
09 Challenger R/T 6spd

Missin' my 9 second 70 runner!

Top
#2401397 - 11/10/17 11:35 AM Re: leaf spring front segment [Re: a493demon]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
Originally Posted By a493demon
They changed both settings.
When the car was in the 10's the afco DAs worked good .
Now that it's in the 8s it just over powered the afcos the way they were valved.
71 Demon 540 on nitrous stock front and rear suspension mini tubed springs moved in 3 inches 28x10.5 tire .4.10 gears cope 2nd gear leave trans brake valve body .


Nice car! Are you running Bias Plys or Radials? If you are running Bias Plys, have you tried Radials with any success?
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2401413 - 11/10/17 12:17 PM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
Originally Posted By a493demon
They changed both settings.
When the car was in the 10's the afco DAs worked good .
Now that it's in the 8s it just over powered the afcos the way they were valved.
71 Demon 540 on nitrous stock front and rear suspension mini tubed springs moved in 3 inches 28x10.5 tire .4.10 gears cope 2nd gear leave trans brake valve body .


Where do you have the Cal Tracs bars set, top or bottom hole? I'm chasing my tail a bit with a similar setup, a little heavier and less power. 528ci, nitrous @ 3480lbs in an E-body.

Top
#2401570 - 11/10/17 05:39 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
Have not tried radials yet almost bought some this year .
On the bars I have them in the bottom hole just touching on drivers side 2 flats on other side .
I have my car very tight on the shocks .
Afco DAs in front full tight on ext. and went from slant 6 T-bars to 318 bars.
Really think I need to go to a even heavier bar to be honest .
On rear I have the ext. pretty tight to slow separation.
But we are still working on it and next year should get it dialed in pretty quick .

Top
#2401837 - 11/11/17 09:19 AM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
Originally Posted By a493demon
Have not tried radials yet almost bought some this year .
On the bars I have them in the bottom hole just touching on drivers side 2 flats on other side .
I have my car very tight on the shocks .
Afco DAs in front full tight on ext. and went from slant 6 T-bars to 318 bars.
Really think I need to go to a even heavier bar to be honest .
On rear I have the ext. pretty tight to slow separation.
But we are still working on it and next year should get it dialed in pretty quick .


Thanks for the info! I put Vi-King DA's all around this year and have been struggling. If I tighten the back even near 1/2 way on extension, it incinerates the tires almost at the hit. With the extension looser, it at least tries to hook, but isn't staying planted as I ramp the nitrous in over ~1-1.3sec. That's with the bars in the top hole so I figured I would need to slow the extension down if anything. I may try them in the bottom hole to see if we can lean on it and hold the tire down farther out. Although both times out have been nearly no-prep conditions....Once was a Wed night at LVD and the other was the last Saturday of the season. Not much bite. I might try ATCO Black Fri to see if I can get it to work a little better.

Top
#2401868 - 11/11/17 10:06 AM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
How much nitrous are you putting at it on the hit ?

Top
#2402110 - 11/11/17 05:19 PM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
0.030 jet at 30% on the hit. Ramped in over 1.0 sec. It went 1.39 60ft. Not stellar. I tried 35% to see if hitting the tire a little harder would help but it didn't like it. Are you leaving in 2nd? I put a 2.28 low gear in it, 3.73's with a 29" tire. It's more tame than it was with stock 2.45 low and 4.10's but I think I'm fighting wheel speed now.

Top
#2402157 - 11/11/17 06:37 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
I spray 20% at 2 10ths out .
Yeah 2nd gear launch ,
Best 60ft so far has been 1.27 but we are working on that

Top
#2402442 - 11/12/17 09:48 AM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
It went 1.34 with 15yr old Rancho and Stocker Star Single adjustables leaving at 28% ramped over 1.3sec. Still not stellar, but we're going the wrong way. I know it's me and not the new shocks, just frustrating when you spend $$ to slow down! smile

I have a CRT 2nd gear leave VB, but we haven't been able to get it to work right so we installed an old A&A and all it's fine for now. I think it'll be OK with the taller 1st and 3.73's, just have to figure it out. I feel like the car might be too heavy to leave in 2nd with 29's and 3.73's but it'd probably work well on the street.

I also don't think the front segment is the problem. The car should 60ft way better the way it sits. Just figured I'd pick some fast guys brains when I saw this thread. Thanks again for the info!

Top
#2402613 - 11/12/17 02:24 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
With a 2nd gear leave I did a 300 ft wheelie .


Attachments
big.jpg



Top
#2402711 - 11/12/17 06:05 PM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
Hey now! That's 20% initial at .2sec? What's the ramp time?

Top
#2402759 - 11/12/17 07:33 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
That was 20% at the hit over I think 1.5 sec.

Top
#2402768 - 11/12/17 07:47 PM Re: leaf spring front segment [Re: sam64]
Thumperdart Offline


Registered: 07/12/04
Posts: 18157
Loc: State of confusion
I went w/the 25" and love it plus w/new Hoosiers this thing hooks on the street but I also angled my shocks more straight up which helped a bunch......... thumbs
_________________________
72 Dart 470 n/a BB stroker street car `THUMPER`..9 seconds of fun...Check me out on FB for stories, videos and lots of carb pics..........760-900-3895........

Top
#2402851 - 11/12/17 10:08 PM Re: leaf spring front segment [Re: a493demon]
humpty Offline
enthusiast

Registered: 10/17/07
Posts: 282
Loc: Minnesota, USA
Originally Posted By a493demon
With a 2nd gear leave I did a 300 ft wheelie .


Dang! Did you lower the rear? What is your front/rear bias?
_________________________

72 Duster - 408ci W2 iron headed SB, 1.41 60', 6.43@105, 10.18@131.

Top
#2402884 - 11/12/17 11:34 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
I have the 1 under stock springs .
I have no idea on the bias since I put the aluminum engine in .
Since then I have taken 2 1/4 inches of travel out of the front .

Top
#2403057 - 11/13/17 12:35 PM Re: leaf spring front segment [Re: a493demon]
challenger451ci Offline
member

Registered: 03/19/08
Posts: 186
Loc: NY
What heads are on the new motor?

Top
#2403208 - 11/13/17 05:33 PM Re: leaf spring front segment [Re: sam64]
a493demon Offline
pro stock

Registered: 09/20/05
Posts: 1347
Loc: baldwinsville new york
B1 org. KB block

Top
Page 1 of 2 1 2 >

Advertisement
Sponsored Link
Forum Stats
24,955 Registered Members
32 Forums
185,310 Topics
2,147,375 Posts

Most users ever online: 882 @ 03/05/17 10:15 PM
Moparts Newest Topics
Went for a drive in a Hellcat
by Lee446
11/20/17 04:44 PM
Recreation fuel, what is it exactly?
by MI_Custumz
11/20/17 02:41 PM
🏃Run Don't Walk. Black Friday Savings Start Now!🏃
by moparmadman69
11/20/17 01:45 PM
Concrete guys, do I need to blanket?
by SomeCarGuy
11/20/17 01:36 PM