Front coil over guys. Need some advise
#2095289
06/20/16 10:56 PM
06/20/16 10:56 PM
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Joined: Jun 2003
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sixpackgut
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Ok, so I have made changes to my car. And it doesnt work anymore.
Im wondering what weight spring you guys run in the front of your car. I would like to hear from race car guys at or under 3100lbs
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095341
06/20/16 11:54 PM
06/20/16 11:54 PM
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Bad340fish
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Still no hook? How much travel do you have now with the coil overs? Calvert likes to see 5" of travel and that seems like it could be difficult with a coil over in the stock shock location.
68 Barracuda Formula S 340
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Re: Front coil over guys. Need some advise
[Re: Bad340fish]
#2095343
06/20/16 11:56 PM
06/20/16 11:56 PM
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Joined: Oct 2013
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junior636
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Still no hook? How much travel do you have now with the coil overs? Calvert likes to see 5" of travel and that seems like it could be difficult with a coil over in the stock shock location. Shouldn't be, I was building coil over kits for awhile and my kits had dead on 5" of travel at the spindle.
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095350
06/21/16 12:02 AM
06/21/16 12:02 AM
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MR_P_BODY
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Depending on the front weight... 350 would be close or 400... put it on a scale The length also matters
Last edited by MR_P_BODY; 06/21/16 12:06 AM.
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Re: Front coil over guys. Need some advise
[Re: junior636]
#2095352
06/21/16 12:05 AM
06/21/16 12:05 AM
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Joined: Aug 2003
Posts: 43,127 Bend,OR USA
Cab_Burge
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Most of the coil over and strut front end drag cars with four links or ladder bars cars I've heard of have three inches front travel
Last edited by Cab_Burge; 06/21/16 12:40 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095354
06/21/16 12:07 AM
06/21/16 12:07 AM
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sixpackgut
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Im at 4.75" of drop now. I only had like 3.5 before when the car was working.
I have a 300lb spring in it now and really dont have it compressed at all
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095358
06/21/16 12:11 AM
06/21/16 12:11 AM
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MR_P_BODY
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Im at 4.75" of drop now. I only had like 3.5 before when the car was working.
I have a 300lb spring in it now and really dont have it compressed at all Then put a 250 or 275 on it...the front must be light but you will have to control the lift with good shocks EDIT more than likely your looking at a 6" spring in the 250-275 range... that will give you stored energy and wont let it fall out... but again you will have to slow it up on extension so you dont get full travel... if it dont need the travel... but I would rather have to much than to little
Last edited by MR_P_BODY; 06/21/16 12:59 AM.
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Re: Front coil over guys. Need some advise
[Re: Monte_Smith]
#2095381
06/21/16 12:42 AM
06/21/16 12:42 AM
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sixpackgut
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Monte, thats exactly what Im thinking . I really dont know how to compare a /6 torsion bar to a coil spring
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095383
06/21/16 12:43 AM
06/21/16 12:43 AM
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Joined: Aug 2003
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Cab_Burge
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If you push up and down on the front of the car does the front of the car move up and down or is it stiff?
Last edited by Cab_Burge; 06/21/16 12:44 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095393
06/21/16 12:55 AM
06/21/16 12:55 AM
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Monte_Smith
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Monte, thats exactly what Im thinking . I really dont know how to compare a /6 torsion bar to a coil spring A torsion bar is a spring, so it has a spring rate............where to find that rate, I don't know. It also depends on how you mounted the shock. The more straight up, the less spring it needs
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Re: Front coil over guys. Need some advise
[Re: Monte_Smith]
#2095403
06/21/16 01:01 AM
06/21/16 01:01 AM
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sixpackgut
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I guess the way the top mount piece comes out on the angle makes the shock more verticle. The front is very stiff, not like it was with the torsion bars. However, stiffer rebound setting on front shock was helping so I wasnt sure it needed to be loser
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095419
06/21/16 01:29 AM
06/21/16 01:29 AM
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MR_P_BODY
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I guess the way the top mount piece comes out on the angle makes the shock more verticle. The front is very stiff, not like it was with the torsion bars. However, stiffer rebound setting on front shock was helping so I wasnt sure it needed to be loser You said the shock compresses very little.. you need lighter springs to get the shock down in farther but stiffer shock setting... you had 3" before when you lifted it up.. but now with the 300# your not working thats because you dont have the 3" anymore.. you have a lot of non stored energy... get the shock(rod) in farther but be prepared to stiffen the shock rate to slow it down
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095428
06/21/16 01:57 AM
06/21/16 01:57 AM
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Shock is compressed. Coil is not. I just ordered #250s.
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095431
06/21/16 02:07 AM
06/21/16 02:07 AM
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MR_P_BODY
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Shock is compressed. Coil is not. I just ordered #250s. This is a coil over shock correct... how do you get the shock compressed and not the coil.. unless the spring is way too short.. if thats the case like I said a 6" at 250
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Re: Front coil over guys. Need some advise
[Re: MR_P_BODY]
#2095523
06/21/16 10:23 AM
06/21/16 10:23 AM
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sixpackgut
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Shock is compressed. Coil is not. I just ordered #250s. This is a coil over shock correct... how do you get the shock compressed and not the coil.. unless the spring is way too short.. if thats the case like I said a 6" at 250 When you compress the coil on a coilover shock then the shock extends and vice versa
Gen 3 power 6.22@110, 9.85@135 Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Front coil over guys. Need some advise
[Re: sixpackgut]
#2095686
06/21/16 03:27 PM
06/21/16 03:27 PM
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Joined: Aug 2003
Posts: 43,127 Bend,OR USA
Cab_Burge
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Shock is compressed. Coil is not. I just ordered #250s. This is a coil over shock correct... how do you get the shock compressed and not the coil.. unless the spring is way too short.. if thats the case like I said a 6" at 250 When you compress the coil on a coilover shock then the shock extends and vice versa When I let my car down on the suspension the coil overs and spring compress, not extend They extend when I jack the car up and let the suspension hang down on of the coil overs, front or rear
Last edited by Cab_Burge; 06/21/16 03:28 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Front coil over guys. Need some advise
[Re: Monte_Smith]
#2095721
06/21/16 04:15 PM
06/21/16 04:15 PM
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madscientist
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Monte, thats exactly what Im thinking . I really dont know how to compare a /6 torsion bar to a coil spring A torsion bar is a spring, so it has a spring rate............where to find that rate, I don't know. It also depends on how you mounted the shock. The more straight up, the less spring it needs Seems to me that you can find the torsion bar rates in an old circle track chassis book. I have an old drag chassis book and I will look and see if it's in there. I know I have seen the rates published.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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