Subframe connectors

[PUREPWR]

What is the pros or cons of tubular vs boxed sbc's, bolt on vs weld on. I like the Kenny Brown's, does anybody have any experience withthese, or which ones should i get. Are the Kenny's able to be painted?
Thanks
Tom

[UMI Performance]

Hello,

We carry the Boxed style weld in SFC's available in Red, Black and Yellow powdercoat. We sell them for $139.99 but I would be glad to work with a member for a good price

Sq. tubing does have greater torsion resistance over round tubular.

If you would like any pics or info, let me know, I will be glad to help out.

[Mike71]

i was wondering if they had those for say 70-71 camaros? =)

[MN6WS6]

Easy terminology here.

Square = stronger torsional rigidity, however they weigh more and cause you to lose ground clearance. They are also visible when looking at the side of the car.

Round = not as strong, but plenty strong for a street or street/strip application. Lightweight, and tuck up becoming unnoticeable.

Kenny Brown/Double Diamond/SLP = The strongest you can buy, but also the heaviest. Typically considered to be overkill for a street car. Usually only used in road race/full on drag car applications. Not sure on ground clearance for the KB's or DD's, but the SLP's are slightly visible from the side.

Bolt on = By far the easiest to install. Not as strong as welded on. Able to easily transfer from car to car with no damage.

Weld on = Difficult to install, usually requires a pro. Also recommended that you remove carpet around welding points to prevent burns. The strongest way to mount them. Difficult to transfer from car to car.

My personal opinion? Forget the bolt-ons. Go welded, it's worth the $50 install charge that most muffler shops stick you with for doing it. Round tube is my choice. You don't lose any ground clearance and they are plenty strong for a street car.

[Jeff_in_Atl]

I went with the box ones.
http://www.claire-marie.net/105_0539.JPG
I like the BMRs http://www.bmrfabrication.com/F-body...frameconnector because they connect to the rear control arms and because it leaves my options open for putting in a Torque Arm http://www.bmrfabrication.com/XtremeDuty.htm

[PUREPWR]

Ok, thanks for all the info guys. Greatly appreciated. How much ground clearence is losed with bosed sbc's, would i still be able to drop the car like 1.5 inches?
Tom

[fastTa]

Originally posted by MN6WS6
Easy terminology here.

Square = stronger torsional rigidity, however they weigh more and cause you to lose ground clearance. They are also visible when looking at the side of the car.

Round = not as strong, but plenty strong for a street or street/strip application. Lightweight, and tuck up becoming unnoticeable.

Kenny Brown/Double Diamond/SLP = The strongest you can buy, but also the heaviest. Typically considered to be overkill for a street car. Usually only used in road race/full on drag car applications. Not sure on ground clearance for the KB's or DD's, but the SLP's are slightly visible from the side.

Bolt on = By far the easiest to install. Not as strong as welded on. Able to easily transfer from car to car with no damage.

Weld on = Difficult to install, usually requires a pro. Also recommended that you remove carpet around welding points to prevent burns. The strongest way to mount them. Difficult to transfer from car to car.

My personal opinion? Forget the bolt-ons. Go welded, it's worth the $50 install charge that most muffler shops stick you with for doing it. Round tube is my choice. You don't lose any ground clearance and they are plenty strong for a street car.

Pretty good summarization!

[Jeff_in_Atl]

The following is from http://www.bmrfabrication.com/F-body...frameconnector

Which one do I choose? - While you can't go wrong with either design, use the following to determine your order: If strength is your number one priority, choose the boxed design. Boxed tubing is torsionally stronger than round tubing however you will lose approximately 3/4" of ground clearance when using this style. If your car is lowered and ground clearance is the prime concern, go with the tubular model. While round tubing is not as strong torsionally, there are other features to these subframe connectors that make them more rigid than most other tubular models available.

I'm planning on a 1" drop using http://www.bmrfabrication.com/F-body...on.htm#springs Here's a car with them installed

[Z Ya Later]

from my experience...

i put on a set of SLP bolt-on SFCs and i love them. if you're not gonna lower your car or you haven't, go for 'em. the nice thing is that you can bolt them on now, get 'em tight then weld them on if you want them to be stronger. just my 0.02

[UMI Performance]

Originally posted by Mike71
i was wondering if they had those for say 70-71 camaros? =)

Not yet, But we are hoping very soon. I will add a post when completed.

Thanks!

[UMI Performance]

[QUOTE]Originally posted by MN6WS6
[B]Easy terminology here.

Square = stronger torsional rigidity, however they weigh more and cause you to lose ground clearance. They are also visible when looking at the side of the car.

The ground clearance is true yes and no. On the camaros, yes the boxed style is easily seen, however on the T/A you can not see them unless you lay on the ground.

Also for clerance, most of the time and on my car the Y-pipe and transmisson cross memember will hang lower then the SFC's themself. I have them installed with the Eiback Pro-Kit and have no issues.

Take care

[99WS6TA]

I am using the slp bolt ons and i have my car lowered about a 1 1/2 inches and I have had no problems with them. the only thing that bottems out on my car is the SLP Y-pipe.