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Do LCA lowering brackets really work?

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Old Dec 2, 2002 | 06:37 PM
  #1  
MikeT 88IROC350's Avatar
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From: Guilford, NY
Car: 1988 IROC-Z
Engine: 350 TPI
Transmission: 700R4 w/TransGo
Axle/Gears: BW 9-bolt w/3.73s
Do LCA lowering brackets really work?

I just read an article in Nov. CHP concerning the mods they are doing to "My Generation Camaro". They installed a set of Global West rear LCA relocation brackets, which they state will move the "instance center" point further back, which in turn plants the tires firm. The theory sounds good to me, but I just wanted to hear some REAL testimony.

Also, they show the mounts as bolt in. Heard something about the weld in kind as well. Or maybe just weld the bolt-ins after they are bolted?

TIA
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Old Dec 2, 2002 | 08:24 PM
  #2  
82camaro's Avatar
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From: NE
Car: 82 camaro SC
Engine: 350
Transmission: 700r4
Yes they work. A lot of 'power' gets transfered through those brackets, weld is better IMO. How they work, in the stock location the back of the LCA is higher than the front. The more torque that is applied to the LCA from the axle housing, the more torque is pushing the axle up(away from the ground). With the relocation brackets the opposite happens. More torque from the axle pushes the axle down toward the pavement--giving more traction.
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Old Dec 2, 2002 | 10:22 PM
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MdFormula350's Avatar
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From: Maryland; USA
http://www.spohn.net/index.cfm?fusea...t&productid=11
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Old Dec 2, 2002 | 10:57 PM
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From: Central Coast Calif.
Car: 91' Camaro
Engine: 383 ci
Transmission: T-56
Axle/Gears: 9 bolt / 3:70
Yes they work!! I have nothing but good things to say about mine, which are Spohn weld in by the way.
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Old Dec 2, 2002 | 11:31 PM
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BORLAZ06's Avatar
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From: San Jose, CA
The LCA relocation brackets do work. Best traction mod by far on my car (next to tires). I like the weld ins.
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Old Dec 3, 2002 | 06:54 PM
  #6  
MikeT 88IROC350's Avatar
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From: Guilford, NY
Car: 1988 IROC-Z
Engine: 350 TPI
Transmission: 700R4 w/TransGo
Axle/Gears: BW 9-bolt w/3.73s
Thanks for your replies, folks. This looks like another one of those "must do" mods. I allready have the Spohn tubular LCAs and panhard bar. These relocation brackets can only make things better.

PS the price was alot lower from Spohn than Global West!

These tech boards are just so great!

I am shooting for the 13s with stock heads and exhaust manifolds.

My new gears really didn't help much, but just proved that I have a traction problem. Also my tires are getting whipped as well. Time for some Nitto DRs!!
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Old Dec 5, 2002 | 12:57 PM
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94-6spd's Avatar
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From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
I put the Spohn weld ins on my car and was getting alot of tire spin even with M/T et drag slicks. I watched the launch on video and determined that the weight wasn't transferring to the back like I thought it should. This is when the lca's were in the very bottom holes. I decided to put them in different holes to see if it made a difference and it did. I went from 1.9 to 1.6 60' times just by putting them in the stock location. The car is lower than stock ride height also. Somehow the front end of the car comes up higher and plants the rear tires when I don't use the relocation brackets. By the way I think I'm the only one that has ever reported this result. If I were you I'd get them and try back to back tests on strip and compare the 60' times. The seem to work for others.
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Old Dec 5, 2002 | 04:40 PM
  #8  
MikeT 88IROC350's Avatar
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From: Guilford, NY
Car: 1988 IROC-Z
Engine: 350 TPI
Transmission: 700R4 w/TransGo
Axle/Gears: BW 9-bolt w/3.73s
94, what car did you have this traction problems with? If it was the newer style F-body, don't they have a totally different suspension setup? Also with a lowered car, the Spohn website says the lowering brackets are a must, just to get the LCA's down to where they should be.

I didn't realize that there were different holes to mount the LCA's in.

At least you made some progress!
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Old Dec 5, 2002 | 05:21 PM
  #9  
94-6spd's Avatar
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From: W. Kentucky
Car: 83 Z-28
Engine: 406
Transmission: TH350
Axle/Gears: 3.70
Originally posted by MikeT 88IROC350
94, what car did you have this traction problems with? If it was the newer style F-body, don't they have a totally different suspension setup? Also with a lowered car, the Spohn website says the lowering brackets are a must, just to get the LCA's down to where they should be.

I didn't realize that there were different holes to mount the LCA's in.

At least you made some progress!
This was on my 83 Z-28. The 4th gens rear suspension is exactly the same as 3rd gens. At least it all looks the same. All the rear suspension pieces that fit 3rd gens fit 4th gens also.

The Spohn relocation brackets have two sets of holes to mount the lca's in plus you can still use the factory location. So you have 3 adjustment holes to use.
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Old Dec 5, 2002 | 09:21 PM
  #10  
JPrevost's Avatar
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Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
I hope the work on my car. I haven't had the chance to get them welded in yet. I've been able to cut a 2.0_ 60' all day without them and running with Eibach pro-kit, SLP boxed LCArms. I hope with them I'll be able to cut 1.9 times or better on the 245/50 z rated tires.
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Old Dec 15, 2002 | 08:15 PM
  #11  
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From: Killa Cali
Can you use the relocation brackets with stock LCA's?
Would you want to?
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Old Dec 16, 2002 | 04:21 PM
  #12  
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From: Southwest Florida
Car: projects.......
You can use the brackets w/ stock LCA's, but the brackets would make them flex even more. The stockers flex bad enough as is. - I personally think the relocaters are great. I built mine. Just takes the right size C-channel. I used box tubing and cut out one side. If you make your own, you need to string the car and measure carfeully to be sure to correctly place your differential. Mine cost me a little time.(I had the box tubing) My 'vert does 1.81 60' on Kumho 712's. I've now got homemade subframes, relocates, and Lakewood LCA's.

later, justin...
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Old Dec 16, 2002 | 08:57 PM
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From: Vancouver, WA
Car: 87 IROC-Z28
Engine: 305 TPI-New 355 on the engine stand
Transmission: T56
Axle/Gears: 3.73 Eaton posi-Soon a 9" Ford!
Has anyone used these brackets in an car used for autocrossing? I've got autocross tires on my car and can easily light them up coming out of a turn or at the start of a run even with a "real" posi. Most of what I've heard relates to drag racing and not turning corners.
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Old Dec 16, 2002 | 11:34 PM
  #14  
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From: Orange,Calif
Originally posted by alloy
Has anyone used these brackets in an car used for autocrossing? I've got autocross tires on my car and can easily light them up coming out of a turn or at the start of a run even with a "real" posi. Most of what I've heard relates to drag racing and not turning corners.
You can use them for setting geometry angles if the car is lowered. Without them you will attain understeer and wheel hop if the car is lowered too much. Best to use the different connection points to your advantage when equipped with relocation brackets to fine tune the geometry to a close to paralell position to the ground for neutral rear chassis steer- LCA rear mounts lower than the front mounts cause oversteer, rears higher cause understeer.
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Old Dec 17, 2002 | 01:10 AM
  #15  
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
I've driven 3 different cars before and after the LCA relocation brackets were installed. All of them had the weld-on ones, I think all 3 were Spohn units too.
My brother installed a set on his 96 Trans Am 6 speed.
My friend Clint put them on his 91 Firebird 305 A4 and then on his 99 SS 6 speed.
All the cars were able to hook a lot better. The 91 Firebird didn't even break the tires loose after the install, rear end plants and the car goes.
I'll have them installed on my car as well, especially since my car is lowered.
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