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

troubles with installing spohn sfcs......

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Old Jan 26, 2002 | 01:44 PM
  #1  
z28onTweenkies's Avatar
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From: Northern California
Car: 1992 Camaro Z28 & 2k3 Cadillac CTS
Engine: LB9
Transmission: T56
Axle/Gears: 3:43
troubles with installing spohn sfcs......

I took my car to the local muffler shop today and they told me that they can install my sfc's. When i got there i took out the instructions and made my marks on the passenger/driver side where i needed to. The muffler guys were hesistant to lower the control arm thinking that it would involve messing with the springs. Another problem was that they wanted me to tell them how to position the sub frames. I was pretty clueless with the exception of the instructions so i didnt know much without a diagram as to exactly how the y pipe bars were supposed to be positioned. If anyone can help me out here, maybe walk me through it that would be greatly appreciated!
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Old Jan 26, 2002 | 04:15 PM
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Yvonne's Avatar
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A Spohnful of suspension

I recommend having Steve go through it directly. He does provide instructions. Art has installed Spohn's products without problem. Maybe this kind of thing just comes naturally to our mechanics on The East Coast... hee hee
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Old Jan 26, 2002 | 05:10 PM
  #3  
Z-Man 85's Avatar
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From: El Paso, TX
Is it true you shouln't just jack the car up in a lift. I have heard that there need to be weight on the tires, and that they should be welded with the suspension on its "normal" position.
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Old Jan 26, 2002 | 05:28 PM
  #4  
z28onTweenkies's Avatar
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From: Northern California
Car: 1992 Camaro Z28 & 2k3 Cadillac CTS
Engine: LB9
Transmission: T56
Axle/Gears: 3:43
you want the suspension to be loaded, so a wheel lift is ideal, as opposed to whatever they use at a tire/wheel shop. i just cant figure out how to set the bars up, and all that good stuff. unbolting that lca sounds like a pain
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Old Jan 27, 2002 | 08:23 AM
  #5  
PF Flyer's Avatar
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From: Germantown, MD USA
Car: 87 T/A
Engine: TPI 350 ci
Transmission: 5 speed
... yes, the suspension needs to be 'loaded' when installing the SFC's, not hangin down on a 'frame only' lift.

The LCA bolt is simply undone and removed, leaving the LCA in place. It's not a big deal. The SFC slides right up into place. The passenger side SFC slides up from the rear to get between the 'cat' and the rocker, but you'll see it sits in that area nicely. Then reinsert the bolt thru the SFC and the LCA and tighten.

The added braces for the SFC's are positioned after.

The drivers side is very straightforward. The added brace will go from the SFC to the trans brace area. On the passenger side it is installed after checking 'cat' clearence and pipe routing. Just slide it back and forth to see where it best fits.

Just clean down to bare metal for welding, and hit at least half a dozen places down the rocker, too. You should also weld around the end at the LCA. You'll see there is plenty of area to do that. Just unbolt the LCA when doing that area.

You will want to think about removing the carpet from the interior, as it will get hot up there.
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Old Jan 27, 2002 | 01:27 PM
  #6  
Pukka's Avatar
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From: Where the chicks absolutely LOVE the V-8 rumble!
Car: 92 RS - Fully Restored w/Custom Int
Engine: LO3 with some mods
Transmission: T-5
Axle/Gears: 3.42 Richmond
I suggest you take to a shop that knows what they are doing. If these guys are asking YOU how to install it and charging you money while they are at it then you might regret letting them do the job later on.

Just my opinion.
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Old Jan 27, 2002 | 02:07 PM
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Yvonne's Avatar
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I strongly agree with Pukka... Steve Spohn's shop is not far from ours. Maybe Steve could recommend a shop closer to you who is familiar with his system. Getting advice from people who use it is nice IF they did install it correctly themselves AND can do it with or for you. Otherwise, you are losing money.
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