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Subframe connectors, worth it?

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Old 01-31-2010, 03:44 PM
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Default Subframe connectors, worth it?

Do subframe connectors really help that much?

With two pieces of metal running front to back on each side of the car, how does that keep the chassis from twisting/flexing? It seems that you would need braces/supports running side to side as well.
Old 01-31-2010, 03:51 PM
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Subframe connectors are absolutely worth it.
Old 01-31-2010, 03:57 PM
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they stop the car from flexing by tieing together the various subframe components, which adds to rigidity.
Old 01-31-2010, 04:52 PM
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I installed them because of a crease in my RR quarter from launching. It hasn't come back, though I still get dimples on the tops of my quarters.

The penalty was a huge increase in impact harshness. After installing them, I could feel every pebble on rough road surfaces. Had I to do it over again, I wouldn't have them welded in.
Old 01-31-2010, 04:54 PM
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Get em' they're good! lol
Old 01-31-2010, 05:51 PM
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i would have to say go ahead and get them...even tho im not a huge fan of mine... it really does rider harder...
Old 01-31-2010, 06:00 PM
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i bought a set but im selling them.
Old 01-31-2010, 06:32 PM
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Originally Posted by ULTIMATEORANGESS
i bought a set but im selling them.
how much you asking?
Old 01-31-2010, 06:33 PM
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no need to do anything else till you have the sub connectors in.
Old 01-31-2010, 06:39 PM
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Originally Posted by bigblueturtle
Do subframe connectors really help that much?

With two pieces of metal running front to back on each side of the car, how does that keep the chassis from twisting/flexing? It seems that you would need braces/supports running side to side as well.
get the three point, they brace the chassis front to back and side to side.
Old 01-31-2010, 07:38 PM
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i have the UMI 3pt subframes and they are great, wish i would have bought them sooner!
Old 01-31-2010, 08:33 PM
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Originally Posted by 94TRANS
i have the UMI 3pt subframes and they are great, wish i would have bought them sooner!
how much ground clearance do you have with those.i was thinking of getting em but i barley have clearance as it is now ....
Old 01-31-2010, 08:37 PM
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Originally Posted by 94TRANS
i have the UMI 3pt subframes and they are great, wish i would have bought them sooner!
Did you notice a huge difference in ride harshness?
Old 01-31-2010, 08:57 PM
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have over 100k on the OD and a real hard 1-2 shift. added UMI 2 points and the 1-2 shift softened dramatically. also made the car feel much more solid
Old 01-31-2010, 09:09 PM
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i think mine look great...if your going to do any harsh driving get the SFCs ull thank us when your quarters dont have dents in them....i bought mine from eric at midwest chassis and he made them chromoly 2 point for me becuase they are they are lighter and stronger than the mild steel...i wouldnt go with 3 point because of the weight and i dont see you needing side to side support but thats my my opinion...
Old 01-31-2010, 09:21 PM
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Originally Posted by 1'low92
how much ground clearance do you have with those.i was thinking of getting em but i barley have clearance as it is now ....
doesnt change your ground clearance, still have the same as before maybe .25in less, they BARELY hang down at all, very well designed.

Originally Posted by Striker
Did you notice a huge difference in ride harshness?
not really in harshness no but im lowered so its already somewhat harsh but the SFC's didnt make it any worse at all that i could tell anyway.. but makes the car a lot more solid in all aspects and handles better too
Old 01-31-2010, 09:42 PM
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i say get em more than likely you wont regret it, i love mine
Old 01-31-2010, 09:44 PM
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they are deffinatly worth the money, mine are bolted in right now and im about to have them welded.
Old 01-31-2010, 11:25 PM
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This topic has been covered numerous times.

The first thing you should do to your suspension is shocks and springs. And by shocks I mean a Koni/ strano setup.

I used to think I needed SFC's until I talked to Sam strano who set me straight on the theory behind SFC's.

If you have a worn car that noticeably flexes then yes by all means get them. But if you're running stock suspension it is NOT your chassis flexing, it is the inability of your DeCarbons and springs to properly control and dampen the car.

why would you try to stiffen one of the most rigid sports car frames?
the 4th gen does not body flex like the 3rd gens.

I'm telling you. do Shocks and springs first. THEN decide if you need SFC's

BY NO MEANS should this be your first suspension mod.

Furthermore, if you do have an aftermarket suspension that is setup incorrectly, ie.. springs and shocks not functioning together and/or are poor quality. THAT is where you need to start.

SFC's are a placebo mod, and if they do stiffen it up at all (unlikely) it's going to be minimal, and the noticed impact harshness will result because you do not have a good set of springs and shocks.... which is where you should've started anyway lol.

Thought I'd give you some advice... I'm fairly certain I have Strano's backing on this.
Old 01-31-2010, 11:35 PM
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Originally Posted by Pro_built7
This topic has been covered numerous times.

The first thing you should do to your suspension is shocks and springs. And by shocks I mean a Koni/ strano setup.

I used to think I needed SFC's until I talked to Sam strano who set me straight on the theory behind SFC's.

If you have a worn car that noticeably flexes then yes by all means get them. But if you're running stock suspension it is NOT your chassis flexing, it is the inability of your DeCarbons and springs to properly control and dampen the car.

why would you try to stiffen one of the most rigid sports car frames?
the 4th gen does not body flex like the 3rd gens.

I'm telling you. do Shocks and springs first. THEN decide if you need SFC's

BY NO MEANS should this be your first suspension mod.

Furthermore, if you do have an aftermarket suspension that is setup incorrectly, ie.. springs and shocks not functioning together and/or are poor quality. THAT is where you need to start.

SFC's are a placebo mod, and if they do stiffen it up at all (unlikely) it's going to be minimal, and the noticed impact harshness will result because you do not have a good set of springs and shocks.... which is where you should've started anyway lol.

Thought I'd give you some advice... I'm fairly certain I have Strano's backing on this.
So your saying that the reason I have the infamous torque dimples in my rear quarter panel on a bone stock car with 23K miles is because I am running stock shocks?

I don't think my car is considered worn out by any means. But there has to be some flexing going on in the rear end to create creases/dimples in my sheet metal.


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