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Thread: Tubular K-frames now available

  1. #1
    Supporting Member Turbo Mopar Contributor turbo2point2's Avatar
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    Tubular K-frames now available

    Hi All,

    I have decided to bring my tubular K-frames to market. This design is what is currently on my Shadow. I built a jig with the ability to produce both L-body and also P,G,J,K frames as well.

    L-body and P,G,J,K frames are being introduced at $825.00. I can discount each piece $40 when I have 4 or more orders due to tubing quantity breaks. I currently have 2 orders.

    The re-design of the stock k-frame allows you to shed some weight while improving anti-lift geometry and the addition of some much needed caster. It uses the 89-up dual pivot lower control arms. It retains the stock mounting points for the steering rack and can be fitted with the bobble strut mount for those running the 525 or 555/568, just need to let me know which trans you are using.

    If you wish to retain stock geometry and opt only for weight savings and the use of the dual pivot control arms, I can do this as well. The jig allows me to setup the k-frame with many possibilities.

    This design does not currently use a sway bar for those looking for running one. That said, I am working on that and I may have a solution to this very soon. Feel free to ask any questions you may have here.

    Click image for larger version. 

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    -Brian Slowe
    87 Shadow "BSX"
    8.58 @ 162

    86 GLHT
    10.62 @ 130

    05 SRT4
    12.1 @ ???.??

    06 Ram 3500

  2. #2
    Supporting Member II Turbo Mopar Contributor CNH320's Avatar
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    Re: Tubular K-frames now available

    Brian that is some awesome work right there... Wow!

    So this is geared more towards a drag application without the sway bar provisions?

    What's the weight difference?
    -Chris H
    1989 Shelby CSX-VNT #91 E85 Powered
    2012 Dodge Charger SRT8

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  3. #3
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    Re: Tubular K-frames now available

    wow dude thats perdy

  4. #4
    Supporting Member Turbo Mopar Contributor "Top Fuel" Bender's Avatar
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    Re: Tubular K-frames now available

    Sexy , nice Job
    10's AGAIN '07, '08, '09
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  5. #5
    turbo addict
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    Re: Tubular K-frames now available

    I'll be the 1st one to ask, what are the saving over a stock kframe? I think for most that sway bar provisions are a must.

    I can't really say it'd be an issue but maybe for the street guys and road racers (although I'd think the drag racers might benefit too) maybe there should be a bolt in brace that ties the two front pivots together better. Just looking at the pics it looks like even the tubular kframe would still suffer a bit from the same flex the stocker does because the front mounts on the a-arm just kind of hang out there in space.

    Just an observation and my opinion is all. Nice work.

  6. #6
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: Tubular K-frames now available

    AWESOME WORK BRIAN!

    Quote Originally Posted by CNH320 View Post
    What's the weight difference?
    Quote Originally Posted by GLHNSLHT2 View Post
    I'll be the 1st one to ask, what are the saving over a stock kframe?
    I think Chris beat ya But we ALL want to know, how light is it?

    I agree on the no sway-bar thing, looks like an awesome piece for a drag car, but I still like cornering in my street car... but then again I like power windows too, LOL

    JT
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  7. #7
    Basic Vendor (MSD, Hawk, etc) Turbo Mopar Contributor rbryant's Avatar
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    Re: Tubular K-frames now available

    Nice job!

    Can you move the control arm connections points upward?

    That would improve the roll center as you lower the car (same thing as having a longer ball joint).
    They can only be raised so much due to clearance issues on the car's frame rails but anything you can get would be a plus.

    -Rich

  8. #8
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    Re: Tubular K-frames now available

    welding on a couple steel straps for a sway bar bushing, like what a muscle cars uses would be pretty easy. GLHNSLHT2's setup is a good one to look at. Very nice work. Any work on tube A arms?

    ---------- Post added at 02:32 PM ---------- Previous post was at 02:27 PM ----------

    Quote Originally Posted by rbryant View Post
    Nice job!

    Can you move the control arm connections points upward?

    That would improve the roll center as you lower the car (same thing as having a longer ball joint).
    They can only be raised so much due to clearance issues on the car's frame rails but anything you can get would be a plus.

    -Rich
    if he welded on a taller plate with 3 holes in it you could raise or lower it for rally or autocross. But a 2 hole plate with one set of raised holes would meet that pretty easy, just changing one weldment

  9. #9
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Tubular K-frames now available

    Quote Originally Posted by BadAssPerformance View Post
    but I still like cornering in my street car...
    CSX or Neon?

    You going to autocross this year?

    James Reeves - Reeves Racing
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  10. #10
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: Tubular K-frames now available

    Quote Originally Posted by Reeves View Post
    CSX or Neon?

    You going to autocross this year?
    I meant the Z, once I get it together its gonna see a lot of street action this year

    If we pull together an AutoX I'll probably use the T2 Shadow it handled awesome at BHF at SDAC-14

    JT
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  11. #11
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Tubular K-frames now available

    Quote Originally Posted by BadAssPerformance View Post
    I meant the Z, once I get it together its gonna see a lot of street action this year

    If we pull together an AutoX I'll probably use the T2 Shadow it handled awesome at BHF at SDAC-14
    Not going for Top Gun?

    James Reeves - Reeves Racing
    World's Fastest 8 Valve - 146.88 mph
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  12. #12
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: Tubular K-frames now available

    Dunno

    JT
    SDAC Director
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  13. #13
    Supporting Member Turbo Mopar Contributor turbo2point2's Avatar
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    Re: Tubular K-frames now available

    Quote Originally Posted by GLHNSLHT2 View Post
    I'll be the 1st one to ask, what are the saving over a stock kframe? I think for most that sway bar provisions are a must.

    I can't really say it'd be an issue but maybe for the street guys and road racers (although I'd think the drag racers might benefit too) maybe there should be a bolt in brace that ties the two front pivots together better. Just looking at the pics it looks like even the tubular kframe would still suffer a bit from the same flex the stocker does because the front mounts on the a-arm just kind of hang out there in space.

    Just an observation and my opinion is all. Nice work.
    The k-frames weigh just over 13 lbs. when finished. For the L-body that would save approx. 14 lbs. for the others it saves approx 19 lbs.

    The sway bar is high on the list to figure out. I will add any info as it becomes available.

    A bar that you mentioned would indeed be beneficial but would need to be a bolt in and would also need to take up some ground clearance. Just not enough room to go straight across.

    ---------- Post added at 04:44 PM ---------- Previous post was at 04:36 PM ----------

    Quote Originally Posted by rbryant View Post
    Nice job!

    Can you move the control arm connections points upward?

    That would improve the roll center as you lower the car (same thing as having a longer ball joint).
    They can only be raised so much due to clearance issues on the car's frame rails but anything you can get would be a plus.

    -Rich
    The re-design does move the front joint up some but also moves the rear lower. I plan to check into moving both points up to improve roll center, but not sure how much due to our suspension design. Once this is test fitted, I will have a better idea of what can be added.

    -Brian Slowe
    87 Shadow "BSX"
    8.58 @ 162

    86 GLHT
    10.62 @ 130

    05 SRT4
    12.1 @ ???.??

    06 Ram 3500

  14. #14
    turbo addict
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    Re: Tubular K-frames now available

    Yea I know a bolt in cross brace would have to bend down some to clear the Differential housing. That's why I suggested it be bolt in as it'd have to come out if you wanted to drop the engine out the bottom.

  15. #15
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    Re: Tubular K-frames now available

    wow i need a damn job!!! this is suuuuper purdy!
    A+ work there Brian

  16. #16
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
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    Re: Tubular K-frames now available

    Wow, gotta add that to the list of things to buy in the future if you decide to make them for van's. Great work,
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  17. #17

    Re: Tubular K-frames now available

    Brian nice work as always, let me know when you have the sway bar worked out.
    Paul B

  18. #18
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: Tubular K-frames now available

    I got to see one of these in person yesterday. It's just beautiful.

    Any of you familiar with Brian's fabrication skills can imagine how nice these things are.
    Mike Marra
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  19. #19
    ...on your color TV screen... Turbo Mopar Contributor Reeves's Avatar
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    Re: Tubular K-frames now available

    Hey dudes,
    DJ (turboshad) said he could make us some LCA's to go with this bad A K-frame if we had enough people interested. I'm def interested. Anyone else?

    Should we start a group buy thread?

    James Reeves - Reeves Racing
    World's Fastest 8 Valve - 146.88 mph
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  20. #20
    Supporting Member II Turbo Mopar Contributor Shadow's Avatar
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    Re: Tubular K-frames now available

    Quote Originally Posted by Reeves View Post
    Hey dudes,
    DJ (turboshad) said he could make us some LCA's to go with this bad A K-frame if we had enough people interested. I'm def interested. Anyone else?

    Should we start a group buy thread?
    Well I was interested Before you.

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