Suspension and Chassis Questions about your suspension? Need chassis advice?

Spohn LCA ***owners come***

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Old Feb 16, 2003 | 02:30 AM
  #1  
fun Pain's Avatar
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From: Crestline,OH
Car: 1987 Formula 350
Engine: 6.0 boost and smak
Transmission: 4l80e
Axle/Gears: 9bolt 3.27
Spohn LCA ***owners come***

in my sign you will see my car as it sits, this winter is the time for just car chasis improvements namely...TRACTION...my 60' times are a joke like 2.3 to 2.5, the only suspension mod i have done to my bird was boxing the factory 15 year old stamped LCA, and they still have the 15 year old bushings.

Frame ties and some other custom chasis pieces have been put into my none t top bird the car is a rock, on jello bushings....

At this point i know my body is so rigid that all the torque is going to my flimsy torque arm and twisting like hell, causeing her to set fire to my tires,,, relocators and LCA's are a must as well and that leads me to....

i am going to buy all SPOHN but desiding the parts i only have question....

Lower Control Arm connecting type? Poly or combo (i will go with moly material)

i am very tempted to go for the combo... for the binding advantege.

but i don't want a road hummer...(car that feels like your in a 4wd that has some 38" superswampers)

so those of you that own them or know someone with them please drop you thoughts.....

Steve... tell me your thoughts, or ask me something...
Attached Thumbnails Spohn LCA ***owners come***-spohn-combo-195dollars.jpg  
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Old Feb 16, 2003 | 02:38 AM
  #2  
RU-QWIK's Avatar
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From: Central Coast Calif.
Car: 91' Camaro
Engine: 383 ci
Transmission: T-56
Axle/Gears: 9 bolt / 3:70
Hey, 38" Super Swampers are not too bad once you get used to them...


As for the arms, I don't have experiance with the pictured arms, but when I changed from the factory junk, to Hotchkis arms, the ride was MUCH better !! Smoother, quieter, etc. The car still refuses to hook up, but hopefully after I get a new torque arm, that will change.
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Old Feb 16, 2003 | 06:38 AM
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REVLIMIT's Avatar
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From: Hawaii
Car: 1984 Chevy Camaro
Engine: Built L98
Transmission: T-56 6 speed
Well I have a good amount of Spohn suspension peices. LCA, panhard bar, torque arm, steering brace, crossmember. As for the LCA's I have the chromoly spherical rod ended ones. And although the road noise increased alittle. The traction and also handling gain was well worth it. I have a 3" drop yet no wheel hop O_o which is pretty amazing in my opinion. IMO if your not gonna get the full spherical then get the combo one. Kinda best of both worlds I guess you could say.
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Old Feb 16, 2003 | 10:12 AM
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From: Mostly in water off So. Cal
Car: '87 Chev
Engine: 60*V6
Transmission: DY T700
I run these exact units on my wife's car and she is very happy with it. Not too noisy for her. I run a Spohn torque-arm w/ sperical front mount also- small gear whine noises but entirely bareable even on longer drives.
Attached Thumbnails Spohn LCA ***owners come***-spohn-lca.jpg  
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Old Feb 16, 2003 | 10:49 AM
  #5  
fun Pain's Avatar
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From: Crestline,OH
Car: 1987 Formula 350
Engine: 6.0 boost and smak
Transmission: 4l80e
Axle/Gears: 9bolt 3.27
thanks for the replies, i think i will go with the spherical, and now i think i will go with the spherical torque are as well....keep the comments coming guys...
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Old Feb 16, 2003 | 02:33 PM
  #6  
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From: San Jose, CA
i use poly in my car. the ride is firm and there isnt much noise...jus a light squeak here and there. the spherical ended ones make ur car sound like it has loose tools in the back seat and they only last a couple years depending on how your roads are over there. poly ones usually last 100,000 miles or longer. the rod ended ones give you a bit more traction than the poly ones. if you reaaalllly need traction than get the rod ends.
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Old Feb 16, 2003 | 04:30 PM
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Anyone else had experience with the spherical rod ended lca's? I am curious if they do normally need replaced that often?

Ben
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Old Feb 16, 2003 | 10:03 PM
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Anyone ever break an adj. LCA that spohn makes? I'm not trying to start any rumors but someone told me they heard mixed reviews about how strong the threaded bolt was holding the whole thing together. I'm a big fan of spohn products and have bought the adj LCA and relocation brackets. I just don't wanna pay a $200+ tow bill comming back from the track.

Last edited by Free Bird; Feb 16, 2003 at 10:06 PM.
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Old Feb 17, 2003 | 07:33 AM
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None have ever broken, and none ever will. The LCA sees a compression load (end to end) and that adjuster isn't going anywhere.

The people who you hear those "rumors" from are people with hidden agendas.

Steve
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Old Feb 17, 2003 | 12:58 PM
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Steve, How long does it take the Spherical Rod Ends to wear out?

Ben
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Old Feb 17, 2003 | 01:14 PM
  #11  
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From: Alton IL
Car: 87 aniv vert, 90 Iroc, 87 LT
Engine: LB9, LB9, carbed 305
Transmission: MM5, MM5 conversion, MM5 conversion
Axle/Gears: 3.45, 3.73, 3.73
I have the poly/poly arms, and love them, I think that spohn has some of the best prices, and the craftsman ship is top notch ****!!

i also have the relocation brackets. but i have only put but about 100 miles on the car since installing these items in december, since we have been getting a lot of crappy weather. I can say however i didnt see much improvement in traction, but i put in some 3.73's at the same time. so who knows

highly recomended to answer the qeustion, but i would use no sperical rod ends since they will where out, but thats just me, depends on how much you drive the car, mines a daily driver most of the time
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Old Feb 17, 2003 | 02:07 PM
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From: Woodland Hills, CA USA
Car: Yes...
Engine: Last time I checked...
Transmission: See "Engine"...
I have a pair of the Spohn 1st design combo LCA's and have had no trouble. Mine are a good 2 to 3 years old and I'm still running the original rod ends.

My daily commute is pretty short, so that's probably why my ends have lasted so long. I plan to pick up new rod ends fom Jegs very soon. I'm also going to convert my panhard bar to the combo set-up at the same time.
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Old Feb 17, 2003 | 02:11 PM
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How much do replacement rod ends cost?

Ben
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Old Feb 17, 2003 | 02:31 PM
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From: Woodland Hills, CA USA
Car: Yes...
Engine: Last time I checked...
Transmission: See "Engine"...
Originally posted by Momar
How much do replacement rod ends cost?

Ben
$28 each for the high quality stuff:
http://www.jegs.com/cgi-bin/ncommerc...23&prmenbr=361
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Old Feb 17, 2003 | 02:34 PM
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From: Decatur, Illinois
And these will work on Spohns stuff?

Ben
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Old Feb 17, 2003 | 04:27 PM
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Steve Spohn, I was on your website and saw the torq arm. I was wondering what shipping costs are for parts such as the T.A.. going to Kasson Mn 55944.
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Old Feb 17, 2003 | 08:18 PM
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All of our rod ended stuff now comes with chrome moly greasable rod ends. I went away from the teflon lined stuff awhile ago. When the teflon wears out it creates a void (space) which = noise. With the non teflon lined rod ends with grease fittings installed, the tolerances don't open up nearly as fast, which keeps them quiet much longer.

Replacement rod ends from us are $20 each.

Please email me for any shipping quotes. I'll find out everything I need to know and get you an accurate quote. I don't wanna tie up the board with that stuff. Just shoot me an email at sales@spohn.net

Thanks,
Steve
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Old Feb 18, 2003 | 01:07 AM
  #18  
fun Pain's Avatar
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From: Crestline,OH
Car: 1987 Formula 350
Engine: 6.0 boost and smak
Transmission: 4l80e
Axle/Gears: 9bolt 3.27
so what you are saying steve is the just have to be maintained a little more the poly....not a problem,
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Old Feb 18, 2003 | 07:30 AM
  #19  
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Originally posted by fun Pain
so what you are saying steve is the just have to be maintained a little more the poly....not a problem,
Yup, I think I will be ordering his lca's with spherical rod ends and getting the relocation brackets in the next few weeks. Doesnt sound like it will be much of a problem for me. Doubt I will be able to hear the extra road noise over the exhaust anyway. lol

Ben
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Old Feb 19, 2003 | 08:25 PM
  #20  
Free Bird's Avatar
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From: Dale City, VA
Car: 91 GTA and 85 IROC
Engine: 355
Transmission: gear jammer
Axle/Gears: 4.11
Originally posted by SteveSpohn
None have ever broken, and none ever will. The LCA sees a compression load (end to end) and that adjuster isn't going anywhere.

The people who you hear those "rumors" from are people with hidden agendas.

Steve
Thank you.
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Old Feb 19, 2003 | 09:42 PM
  #21  
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is it really better to have the combo arms vs the poly poly. it seems like they will still bind, just in two less places.
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Old Feb 20, 2003 | 12:44 AM
  #22  
fun Pain's Avatar
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From: Crestline,OH
Car: 1987 Formula 350
Engine: 6.0 boost and smak
Transmission: 4l80e
Axle/Gears: 9bolt 3.27
i think you answered your own question on that one man...
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Old Feb 20, 2003 | 12:55 AM
  #23  
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From: Mostly in water off So. Cal
Car: '87 Chev
Engine: 60*V6
Transmission: DY T700
Originally posted by laiky
is it really better to have the combo arms vs the poly poly. it seems like they will still bind, just in two less places.
If you suspension is stiff- let me phrase this better- If your suspension travel is minimal ( unlike any thing close to stock) then the poly side of the combo mounts will make no difference at all in handling.

What happens in a very stiff or solid suspension is there is little out of parallel deflection of the axle in corespondence to the chassis. If the suspension is soft then one side will drop when the other will compresscausing a twisting bind on the mounts. if both sides stay equivialent to eachother- as the case of very stiff springs or swaybars or both combined with high rebound shocks then very minamal twist ever occurs to the poly mounts = very little or no bind. Some cases poly is perfectly acceptable, it just depends on how the car is setup. I have my car setup with perfectly neutral rear steer of the LCA angle and axis roll. My car will not roll and promote oversteer or under steer from the LCA's ( again my axis roll will maintain neutral rear steer) This will not bind the front mounts. Its all about geometry.

Last edited by AGood2.8; Feb 20, 2003 at 01:02 AM.
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