UMI Sales

iTrader: (1)

Hello
Like mentioned above anytime you install a SFC's on a vehicle. You will notice a completely different ride quality and it doesn't matter what type of suspension set up is installed on it it will keep the dimples off of the quarter panels due to the weight transferring. Below is a link to show you what all UMI Performance has to offer!

http://www.umiperformance.com/catalo...qcooljf0hcjlh6

If you have any other questions feel free to ask!
Thanks
Brad

Jazz-LT1

iTrader: (2)

There are $4$ one of the best suspension mods you can make. They improve launch, braking, cornering, ride, you name it. One the subframes are installed when you jack the car on one side you'll see how much difference they make. The car no longer bends in the middle and its funny to see the rear tire up in the air when you jack the front of the car. It makes a huge difference in stiffness and it's honestly very hard to judge the rest of the suspension of the chassis if flexing like a noodle.

SS101

iTrader: (2)

i love it when people say that sfcs dont add any chassis stiffness then say that the car will feel worse over bumps. where do they think all that bump energy is being absorbed if there isnt anything connecting the subframes? the sky? the reason that the car feels more jarring over bumps is because the sfcs prevent chassis flex and its that flex, that "springiness", that would otherwise absorb those bumps.

Pro_built7

iTrader: (9)

I would still start with springs and shocks.
Like I said.. There are exceptions.

But normally these cars are VERY stiff.

Pro_built7

iTrader: (9)

Striker-
It seems strange to me that you have a mostly stock car with stock suspension, and have torque dimples? I'm on my third F body (2nd built one) and have never had them, and never needed SFC's.

Are you sure it's not something else?

Striker

iTrader: (1)

Yes sir, positive. The car ran 13.60@106.9mph. I have a lid and a TB. The car never gets driven anywhere where its left alone where I can't see it so no one could have leaned on it or anything like that.

For what its worth, they are VERY minor. Due to the fact that I detail the car often, I noticed them. I dont think 9/10 people would even pick up on them, so I am getting them corrected in the spring with some paintless dent removal services. Also, koni's are in the works as well.

crazymonkey

iTrader: (2)

I agree with Pro built7, I wish I would of talk with Sam first before I bought my SFC, I got 2 point weld tubular SFC from UMI (highly recommend if your car is dropped)

JD_AMG

Ok, assuming the dimples are actually from some kind of flex, consider the fact that the SFC's only go as far back as where the LCA's connect to the body, that's before the quarter panels and where the car would be "flexing" at. So even if they do stop "body flex" how could they help flexing where they don't brace? And that would explain why everyone still gets torque dimples even though they have SFC's.

The one thing that won't start a debate is the fact that the stock shocks suck. They cause the car to feel jittery, loose and "flexy" which cause rattles etc.
Think of it this way, if your car was being hit from underneath with a bat would you rather brace the car more or all together stop having it hit with a bat? The shocks are a problem, bracing something that isn't the problem isn't going to help any.

Striker

iTrader: (1)

Ok fair enough. We know stock shocks suck. But I also can't see how adding additional bracing will be a negative thing.

I read up on here that a lot of members went and fixed their dimples and shortly after installed some SFC's and no longer reported the issue. I see where your coming from JD, no arguments there. I just feel that it cannot hurt to install some nice large 3 point frame connectors due to the fact that the car will flex in one way or another.

On another note, do the Koni's really help with the overall ride quality this much? I noticed even with my relatively low mileage car I get some interior rattles as well.

Elderado

iTrader: (1)

get airbags!

Pro_built7

iTrader: (9)

Thanks, and yes this is exactly what I'm trying to convey.
These are the exact same things Strano will say if you talk to him on the phone.

Yes Koni's will help overall, many members have proclaimed koni 4/3 or 4/4's to be the #1 mod you can do to an f body. As far as the SFC's and placebo chassis bracing, again, they are not a "bad" thing, but chances are your problems lie elsewhere I would deffinitely NOT do sfc's before springs/ shocks/ swaybars.

JD_AMG

I would agree normally but most with SFC's say that their ride quality has gotten more harsh, and from my own experience its true. But with a stiffer chassis the ride should get better because the suspension should be able to work better and a more rigid body shouldn't be transmitting vibrations.
I have considered them just for good jacking points but im not going to sacrifice ride with no performance gain.

From reading on here I have not seen anyone get them and not have their dimples return.

For me they made a dramatic difference(and i had only ~40K miles on my car at the time), to the point where I wouldn't own another fbody without them, and definitely the first mod I would do. The car wouldn't slap against bumps anymore or get choppy on broken up pavement. Honestly very BMW-like, where the ride is firm but not jarring. Its creamy and smooth, connected to the road and very controlled. And of course there's the huge gain in stability and handling.
Right now the only rattles I have got are exhaust related.

DamianN.

iTrader: (11)

yea thats a good point

00blacka4

iTrader: (7)

just got mine welded in...let me tell you it is a huge difference in handling....car doesent have a front sway bar and on the way to get them on i was very cautious around turns because of the instability but on the way home it was night and day difference in handling...also noticed the car didnt jump around on a launch, it just goes...deffinetly worth it !! was extremly happy because i didnt think i would notice anything...

RevGTO

iTrader: (12)

As I said in my first post, I have SFC's and my dimples came back. I had them PDR'd out, and in time they returned. But the big crease in my quarter did not.

UMI Sales

iTrader: (1)

That's the first for me! Did you install them with the suspension loaded. The only other reason why this might have happened is because your chassis is in a bind.. Are they weld on or bolt on?
Brad

shiv15

iTrader: (7)

Are SFCs also a "placebo" mod on convertibles?

UMI Sales

iTrader: (1)

Hello
Yes! even with all of the extra bracing you would think it would be more solid. But even in that case if you are looking for a more firmer ride and protection for the body panels. UMI Performance also offers both a weld on and bolt on application for SFC's. Below is a link to show you what all we have to offer!

http://www.umiperformance.com/catalo...bdmlneempfps26

http://www.umiperformance.com/catalo...bdmlneempfps26

If you have any other questions feel free to ask!
Thanks
Brad

BMR Tech

iTrader: (9)

Like mentioned the subframes on a convertible are a different animal than the hardtops. The convertibles benefit much more then the hardtops when it comes to chassis stiffening.

We offer a convertible weld in subframe connector with more points of contact then any other manufacturer to really help add additional strength.

The listing for the subframes can be found HERE

Please ask any questions you might have

ben77

iTrader: (1)

I just had my BMR 2 points put on a couple of weeks ago. I have an audi and a 240 slammed on coils and both of those cars have much stiffer chassis than my TA. I got sick of the chassis flex in the TA and finally got the SFC's and installed em. Now I wish I would have done it sooner. It makes an amazing difference in the way the car drives and handles. You can actually feel the suspension working instead of the chassis flexing over uneven roads. And the tail end now just follows through the turn at high speeds rather than want to slide out from under you. Definitely worth it IMHO.