SFC's are awesome!
Thread Starter
Supreme Member

Joined: Jan 2003
Posts: 1,786
Likes: 1
From: Paxton, MA
Car: 1987 Camaro Z28
Engine: 335 TPI Stroker
Transmission: Tremec TKO 500
Axle/Gears: 10 bolt / 3.42
SFC's are awesome!
I just got my Spohn boxed SFC's installed on my car. I can't even describe the difference. It is extremely noticeable on my car!! I don't have those stupid interior rattles anymore, and the car doesnt feel like it's gonna fall apart when I hit the big bumps on the roads.
I recommend SFC's to everyone, they are defintely a good purchase and should be the first thing to mod on your suspension. You won't be disappointed!!!
I recommend SFC's to everyone, they are defintely a good purchase and should be the first thing to mod on your suspension. You won't be disappointed!!!
Senior Member
Joined: Oct 2001
Posts: 718
Likes: 1
From: Hliðskjálf / Pensacola, FL
Car: Camaro
Engine: 3800
Transmission: T5
I bet my father 150 bucks that SFCs and a STB will make a noticable difference in the way the car feels. He doesn't believe me heheh.
Can't wait to get that money.

-Bud
Can't wait to get that money.

-Bud
Supreme Member
Joined: Jul 1999
Posts: 18,457
Likes: 16
From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
People seem to be reluctant to actually do this mod, I guess because it isn't big and shiny and sitting right up on top of the engine to oooooh and aaaaah over when they open the hood. It's amazing how much good invisible things can do, and how useless big shiny things usually are, but yet how willing people are to do the useless shiny thing while neglecting mods that actually accomplish something.
Senior Member

Joined: Dec 2003
Posts: 905
Likes: 3
From: Weyauwega, WI
Car: 86 Camaro
Engine: none
Transmission: none
Axle/Gears: GT4, 3:73s
i am looking into a new set of them from spohn and i was just wondering how much work it really is to putting them on. from what i understand you must bolt it in and tig weld it in. is it a lot more invloved than that or is it hardly any work at all?
Some people must live under a rock or don't read. SFC' s have been a HOT TOPIC over the years and how they improve the stiffness of the 3rd gen cars. So I am surprise when someone posts the improvement of SFC installation.
Everyone should know this by now. And it makes no difference what brand they are as long as they are welded in.:hail: :hail:
Everyone should know this by now. And it makes no difference what brand they are as long as they are welded in.:hail: :hail: Thread Starter
Supreme Member

Joined: Jan 2003
Posts: 1,786
Likes: 1
From: Paxton, MA
Car: 1987 Camaro Z28
Engine: 335 TPI Stroker
Transmission: Tremec TKO 500
Axle/Gears: 10 bolt / 3.42
Originally posted by DJP87Z28
Some people must live under a rock or don't read. SFC' s have been a HOT TOPIC over the years and how they improve the stiffness of the 3rd gen cars. So I am surprise when someone posts the improvement of SFC installation.
Some people must live under a rock or don't read. SFC' s have been a HOT TOPIC over the years and how they improve the stiffness of the 3rd gen cars. So I am surprise when someone posts the improvement of SFC installation.
I will proceed to go back under my rock
Trending Topics
Senior Member

Joined: Dec 2003
Posts: 905
Likes: 3
From: Weyauwega, WI
Car: 86 Camaro
Engine: none
Transmission: none
Axle/Gears: GT4, 3:73s
Originally posted by DJP87Z28
Some people must live under a rock or don't read. SFC' s have been a HOT TOPIC over the years and how they improve the stiffness of the 3rd gen cars. So I am surprise when someone posts the improvement of SFC installation.
Everyone should know this by now. And it makes no difference what brand they are as long as they are welded in.:hail: :hail:
Some people must live under a rock or don't read. SFC' s have been a HOT TOPIC over the years and how they improve the stiffness of the 3rd gen cars. So I am surprise when someone posts the improvement of SFC installation.
Everyone should know this by now. And it makes no difference what brand they are as long as they are welded in.:hail: :hail:
Sub-frame connectors
Originally posted by TunedPort 335
Yea... I know they've been a hot topic, I bought the damn things 2 years ago. Money and time have stranded me from actually putting them in until now..
I will proceed to go back under my rock
Yea... I know they've been a hot topic, I bought the damn things 2 years ago. Money and time have stranded me from actually putting them in until now..
I will proceed to go back under my rock
I noticed you live in MA. Can you tell me where you had yours installed and how much? I will be getting some soon.
Thanks.
Last edited by RobC3; Aug 16, 2004 at 08:35 AM.
Thread Starter
Supreme Member

Joined: Jan 2003
Posts: 1,786
Likes: 1
From: Paxton, MA
Car: 1987 Camaro Z28
Engine: 335 TPI Stroker
Transmission: Tremec TKO 500
Axle/Gears: 10 bolt / 3.42
Re: Sub-frame connectors
Originally posted by RobC3
Hello,
I noticed you live in MA. Can you tell me where you had yours installed and how much? I will be getting some soon.
Thanks.
Hello,
I noticed you live in MA. Can you tell me where you had yours installed and how much? I will be getting some soon.
Thanks.
Not sure on the exact cost, since he had to repaint the back half of my car at the same time... but I would say around $100. I will PM you their phone number.
Supreme Member
Joined: Jun 2000
Posts: 1,300
Likes: 1
From: NJ,USA
Car: 1984 Trans Am
Engine: GMPP 350 V8
Transmission: 700R4
Axle/Gears: 3.23
I just installed my Alstons last week and noticed a huge difference. (T-top car, w/ 182k miles). SFC's were bolted and welded. The car feels great, much more solid. You dont even notice when the T-tops are off. It almost feels like a different car.
Senior Member
Joined: Aug 2001
Posts: 838
Likes: 0
From: garfield, nj
Car: 86 Z28
Engine: 355 carbed
Transmission: t-5
doing the subframe thing next weekend. money is good right now and by next year my car will be a different looking better running and handeling 3rd gen.
Supreme Member
iTrader: (2)
Joined: May 2002
Posts: 4,449
Likes: 8
From: Everett, WA
Car: 87' IROC
Engine: L98
Transmission: T56
Originally posted by RB83L69
People seem to be reluctant to actually do this mod, I guess because it isn't big and shiny and sitting right up on top of the engine to oooooh and aaaaah over when they open the hood. It's amazing how much good invisible things can do, and how useless big shiny things usually are, but yet how willing people are to do the useless shiny thing while neglecting mods that actually accomplish something.
People seem to be reluctant to actually do this mod, I guess because it isn't big and shiny and sitting right up on top of the engine to oooooh and aaaaah over when they open the hood. It's amazing how much good invisible things can do, and how useless big shiny things usually are, but yet how willing people are to do the useless shiny thing while neglecting mods that actually accomplish something.
Junior Member
Joined: Sep 2003
Posts: 20
Likes: 0
From: Indianapolis
Car: 1985 IROC-Z
Engine: 5.0L TPI
Transmission: TH700R4
I've owned my car since it was new back in 1985. The SFC's definitely makes the car more solid since I installed them last year. It doesn't rattle as much when it goes over bumps much like my BMW and VW. Solid as a rock. Didn't really know about them until I found this site.
I bought the Kenny Brown SFC's. Why -- Kenny Brown is located locally in Indianapolis and they will install them (so I assume they should install it right). I paid about $450 for them installed. They also put my LCA's on at the same time. The rear part of the SFC attaches to LCA mounting point. The only problem is the exhaust rattles on the SFC when I go over bumps and in reverse. They recommended that I replace the motor mounts (haven't done it yet -- Too many things to do and only me). I was going to do them with a suspension and brake upgrade (ebmiller or Baer). Nevertheless the SFC are a good choice.
I bought the Kenny Brown SFC's. Why -- Kenny Brown is located locally in Indianapolis and they will install them (so I assume they should install it right). I paid about $450 for them installed. They also put my LCA's on at the same time. The rear part of the SFC attaches to LCA mounting point. The only problem is the exhaust rattles on the SFC when I go over bumps and in reverse. They recommended that I replace the motor mounts (haven't done it yet -- Too many things to do and only me). I was going to do them with a suspension and brake upgrade (ebmiller or Baer). Nevertheless the SFC are a good choice.
Supreme Member
Joined: Mar 2002
Posts: 4,812
Likes: 0
From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
when you weld them in place i take it that mig welding is better for this and if so then what are the settings you should put on the welder ?
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