Re: Leaf spring advancements
[Re: Dart451]
#3127962
03/09/23 09:40 PM
03/09/23 09:40 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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OP
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bean town ....Ca
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Do you know the current spring rate? 200 lb
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Leaf spring advancements
[Re: moparacer]
#3127963
03/09/23 09:42 PM
03/09/23 09:42 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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My theory is as stiff as possible on the front segment and soft on the rear. Kind of mimic what a ladder bar does with the front being stiff and the rear having the springs that hold up the car. All the rear segment would do is technically hold the car up. . One current thought is to mix in a set of composite Landrum on the back half which I can get in 175 lb spring rate which is a little lighter then what we currently have not to mention gets rid of quite a bit of weight
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Leaf spring advancements
[Re: n20mstr]
#3127992
03/09/23 11:10 PM
03/09/23 11:10 PM
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Joined: Jan 2003
Posts: 11,805 Portage,michigan
B3422W5
I Live Here
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I Live Here
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Portage,michigan
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just add a small plate kit ..... I know...... LMAO , im just being "that guy" Props for keeping it all motor The level your at now......info doesnt seem to come easy . As already mentioned, get with a "good" shock guy and hopefully you get some help. ALSO 235 radial cars are right at your ET level, and yes they have a power adder but some are leaf spring cars and maybe some of that info can crossover to your program. Are you data logging, and do you have rear shock sensors to see the travel as the car is going down the track?? AND ....nitrous cars dont add power down track, usually the kit is all in by .9 or less , so in reality you are pretty close to a 235 radial car There were a few 235 cars in the 90’s at Lights out. Was fun being down there watching them Stef, who many on here know , was down there with his son and his 235 Duster with gen3 power. Brand new motor, they were in the mid teens with 1.15 60 foot leaving at 30% this in 85 degree heat. On Leafs, about 75 pounds to heavy Not sure if it was Bradenton or Orlando but somebody went 4.65. I understand it’s an “ outlaw” car, not sure what isn’t legal on it, or who it was.
Last edited by B3422W5; 03/09/23 11:11 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam, footbrake street/strip car
1.41 best 60 foot 6.54 @ 105.20
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Re: Leaf spring advancements
[Re: B3422W5]
#3128053
03/10/23 09:23 AM
03/10/23 09:23 AM
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Joined: Aug 2003
Posts: 4,766 On the parachute mount
n20mstr
master
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master
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On the parachute mount
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just add a small plate kit ..... I know...... LMAO , im just being "that guy" Props for keeping it all motor The level your at now......info doesnt seem to come easy . As already mentioned, get with a "good" shock guy and hopefully you get some help. ALSO 235 radial cars are right at your ET level, and yes they have a power adder but some are leaf spring cars and maybe some of that info can crossover to your program. Are you data logging, and do you have rear shock sensors to see the travel as the car is going down the track?? AND ....nitrous cars dont add power down track, usually the kit is all in by .9 or less , so in reality you are pretty close to a 235 radial car There were a few 235 cars in the 90’s at Lights out. Was fun being down there watching them Stef, who many on here know , was down there with his son and his 235 Duster with gen3 power. Brand new motor, they were in the mid teens with 1.15 60 foot leaving at 30% this in 85 degree heat. On Leafs, about 75 pounds to heavy Not sure if it was Bradenton or Orlando but somebody went 4.65. I understand it’s an “ outlaw” car, not sure what isn’t legal on it, or who it was. The car you speak of going 4.60's on a 235 , yes that is a Fox body with a Turbo BB chevy based engine, Its not follwing the 235 class rules. So really not a fair comparison that car can run 4 teens on a 275
....BAD A$$ STREET CAR.....
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Re: Leaf spring advancements
[Re: justinp61]
#3128104
03/10/23 11:09 AM
03/10/23 11:09 AM
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Joined: Sep 2007
Posts: 912 West Virginia
B1Frank
super stock
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super stock
Joined: Sep 2007
Posts: 912
West Virginia
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I see both side's of the story, if you want to go fast i would go with the mono-leaf, I am building a car like i was #16 years old, that is why i moved in the spring #3 inches, with the super-stock spring, it was around then. that is a good point !
Last edited by B1Frank; 03/10/23 11:14 AM.
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Re: Leaf spring advancements
[Re: n20mstr]
#3128134
03/10/23 12:16 PM
03/10/23 12:16 PM
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Joined: Jan 2003
Posts: 8,103 Tulsa OK
Bad340fish
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The car you speak of going 4.60's on a 235 , yes that is a Fox body with a Turbo BB chevy based engine, Its not follwing the 235 class rules. So really not a fair comparison that car can run 4 teens on a 275
They legged it out on the last day of Sick Week to go 7.1X@206 or something dumb on a 235 tire lol.
68 Barracuda Formula S 340
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Re: Leaf spring advancements
[Re: Bad340fish]
#3128149
03/10/23 12:51 PM
03/10/23 12:51 PM
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Joined: Aug 2011
Posts: 2,915 Pattison Texas
CSK
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Pattison Texas
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As Dragula said, get the calver sliders, they are made at an angle & will give you more axle drop, or something like these ???
Last edited by CSK; 03/10/23 12:54 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Leaf spring advancements
[Re: CSK]
#3128205
03/10/23 04:01 PM
03/10/23 04:01 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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I did purchase a set of those just not sure I want to go to that
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Leaf spring advancements
[Re: WHITEDART]
#3128210
03/10/23 04:34 PM
03/10/23 04:34 PM
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Joined: Jan 2004
Posts: 668 IL
Dart451
mopar
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mopar
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Posts: 668
IL
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Do you know the current spring rate? 200 lb So you could calculate from that. How many inch's do they compress at ride height? What's the front and rear spring segment lengths?
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Re: Leaf spring advancements
[Re: WHITEDART]
#3128299
03/10/23 10:55 PM
03/10/23 10:55 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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Hollow 7075 saved a few ounces on each side
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Leaf spring advancements
[Re: WHITEDART]
#3128391
03/11/23 11:16 AM
03/11/23 11:16 AM
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Joined: Mar 2003
Posts: 2,555 PA
moparacer
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Hollow 7075 saved a few ounces on each side Sweet! Just as long as it can handle the stress they see at launch and not flex or bend. I bet its is pretty high.
67 Barracuda street/bracket car 11.27-119 68 Dart 502 BB 5.44-126 414 cid SB Dragster 7.65-174
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Re: Leaf spring advancements
[Re: dvw]
#3128443
03/11/23 01:33 PM
03/11/23 01:33 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
WHITEDART
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The Khouty boy's were having consistancy issues last year with their all motor car. Vince senior told them to take out the titainium 4 link bars and replace them with steel. It fixed the issue. Doug these are made out of 7075 which technically is stronger than the material that was originally used I have ran them for two events now with great success I can't say there was any Improvement but the car definitely went straight every pass
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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Re: Leaf spring advancements
[Re: WHITEDART]
#3128478
03/11/23 03:12 PM
03/11/23 03:12 PM
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Joined: Feb 2013
Posts: 154 Canada
cuda499
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Has anybody thought about changing out the rear segment on a Calvert mono leaf for more or less stored energy .. has anybody ever mixed a composite rear segment with a steel front segment I'm currently working on changing things around looking for more stored energy however the Calvert Springs just do not have very much Arch definitely not as much Arch as I would like.. the rear end currently suspends 3 inches from ride height before the car has to fight the spring as well as the shock I'd like to increase that to 5 in of free travel and maintain a relatively low stance I would get some LP racing rear leaf spring brackets, if your sticking radial, and a set of shock sensors. Do you run an ARB in the back?
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Re: Leaf spring advancements
[Re: cuda499]
#3128483
03/11/23 03:22 PM
03/11/23 03:22 PM
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Joined: Oct 2011
Posts: 3,036 bean town ....Ca
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I have the second set he ever made however I haven't installed them yet no I do not run an ARB
Last edited by WHITEDART; 03/11/23 03:22 PM.
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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