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sub frame connectors))) boxed VS. tubular AND WHICH IS THE BEST BRAND???

This is a discussion on sub frame connectors))) boxed VS. tubular AND WHICH IS THE BEST BRAND??? within the Suspension and Handling forums, part of the General Help category; im looking at the BMR 's SFC's and this will be the first set just seeing which brand and which ...

  1. #1
    Senior Member greatwhiteZ28's Avatar
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    sub frame connectors))) boxed VS. tubular AND WHICH IS THE BEST BRAND???

    im looking at the BMR 's SFC's and this will be the first set just seeing which brand and which kind whould be te best for me.

    decription.

    lots of drag racing/ but is a DD but mostly a weekend driver

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    Just me Y2KPewterSS's Avatar
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    Boxed are better IMO. Its harder to twist something that is squared than something that is already rounded.
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    I lika da Chevy's LETHALxLS1's Avatar
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    I heard the same thing.

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    Trans Am for life baby SexyTransAm's Avatar
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    iv always been told that the tube is better. and that is what i have. and if the box was better, then y dont they make box frame drag car instade of tube frame?


    95 TA A4, Black on Black C5 Z06 wheels, CAI, 160 powerstat, TB coolent bypass, TB foil, LT4 Knock Sensor, STB, SFC, Poly trans and torque arm mounts, flowmaster muffler, gutted cat, and hypertech tuned.
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    Senior Member greatwhiteZ28's Avatar
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    Quote Originally Posted by SexyTransAm View Post
    iv always been told that the tube is better. and that is what i have. and if the box was better, then y dont they make box frame drag car instade of tube frame?

    well when they build the frames on dragsters all the tubing is bended and you can bend a square without caving it in soo thats why they do that.

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    Senior Member mrr23's Avatar
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    Quote Originally Posted by SexyTransAm View Post
    iv always been told that the tube is better. and that is what i have. and if the box was better, then y dont they make box frame drag car instade of tube frame?
    because round tubing will be lighter and easier to bend. you ever look to see how much bracing they do to make that frame? also, look at the funny cars when they launch. the frames are twisting. in slow motion, you can really see it.

    if round tubing is better, then why are all of the production cars made out of square tubing? look at the current C5 and C6 corvette. the frame is made out of 2" x 3" square tubing.

    boxed is more rigid.

  7. #7
    Rollo Tomassee AKIRA's Avatar
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    Ive got tubulars put on a month ago and once again I felt ZERO difference.

    I honestly dont understand where people think they feel a difference.

    Two cars now...
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    Senior Member mrr23's Avatar
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    daily driving, you most likely won't.

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    Member Hawk241's Avatar
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    1. Boxed weld ins

    2. BMR

    3.

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    SS#430 1 of 74 7camaro7's Avatar
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    are relocation brackets absolutely necessary to notice a difference?

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    Senior Member NeeD4SpeeD's Avatar
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    Quote Originally Posted by 7camaro7 View Post
    are relocation brackets absolutely necessary to notice a difference?
    I think ur thinking of lower control arms for th erelocation brackets...SFC dont need to be relocated to my knowledge....And the relocation kit for the LCA's ( if thats what ur referring 2) is usually for cars that have been lowered to the ground other then what comes from the factory.... If this wasnt wat u were referring 2 this just ignore me cuz im retarted... and its waaaay 2 late

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    Junior Member mark.deady's Avatar
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    try umi... great stuff just my .02

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    The Pulse of the Maggots SicWs6's Avatar
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    Boxed BMR's!!
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  14. #14
    Rollo Tomassee AKIRA's Avatar
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    Quote Originally Posted by mrr23 View Post
    daily driving, you most likely won't.
    You gotta know most of everyone on here would disagree with you and say they noticed it the moment they left the shop.

    I didnt on this one nor did I on my 94 mustang gt convertible.

    There are other mods that Ive done to the car that I havent noticed either. In any case, I thought if I wanted to do more suspension work, I will buy more than one item at a time and install them all at once.

    I like to feel a difference in my car after spending $$.

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    I lika da Chevy's LETHALxLS1's Avatar
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    Well I realize some aftermarket parts are worth the money/time but not all are. Companys constantly make false claims to duke people into buying.
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    Crazy Canuck ! Eugenio_SS's Avatar
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    SLP SFC are great.
    I have the KBDD... cause they were the only triangular design @ the time 4 convertibles
    Eugenio_SS
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    Member Hawk241's Avatar
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    I think it depends on the car..

    Quote Originally Posted by AKIRA View Post
    Ive got tubulars put on a month ago and once again I felt ZERO difference.

    I honestly dont understand where people think they feel a difference.

    Two cars now...
    I have a very low mileage T/A that wasnt beat by the seller, I recently added SFC and didnt notice anything, but I a have heard guys with cars some what older and or abused cars say they noticed a change after install.
    Basically my main concern was to keep the ingrety of the chassis and body from not changing, not to mention stability for the track.
    I saw a buddy of mine last night at the track who has a 98 z28, not much done to it, runs it all the time.., you can see the waves on his right quarter, I said to him you DONT have SFC's do you?, he laughs and says.."how can you tell.."

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    Member Bouvers's Avatar
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    I second that previous statement, I intend on getting SFC for my vert first and foremost because I think its an absolute nessicity for verts. Secondly because I feel that even if I don't feel a difference that it will just ensure that I don't start feeling a negative difference in the future (that is to say body roll and whatnot) Furthermore, I think that if you put SFC on your car and you really don't feel a difference its a good thing, that means your car still has a rigid solid body just my .02

  19. #19
    Member Bouvers's Avatar
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    As for my question, I'm still undecided on which SFC to take, I don't even know who offers round or square tubing. I'm leaning towards square for multiple reasons, but something I'm really interested in is SFC that meet in the middle I feel that this will make a much bigger difference then just the two bars on the sides... please correct me if I'm wrong.
    If anyone knows of a brand that matches that description please let me know... I might just custom make mine

  20. #20
    Senior Member mrr23's Avatar
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    Quote Originally Posted by Bouvs View Post
    As for my question, I'm still undecided on which SFC to take, I don't even know who offers round or square tubing. I'm leaning towards square for multiple reasons, but something I'm really interested in is SFC that meet in the middle I feel that this will make a much bigger difference then just the two bars on the sides... please correct me if I'm wrong.
    If anyone knows of a brand that matches that description please let me know... I might just custom make mine
    i think it's the SLP SFC that bolt to the trans tunnel brace area.

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