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  1. #241
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    Click image for larger version. 

Name:	A701B8F7-412B-41DA-AF42-07E0063E59FE.jpeg 
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ID:	392619A Dry Tunnel is a fast Tunnel !!! Excellent job Mr Porta !!!

  2. #242
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    Thumbs up

    Quote Originally Posted by Chaz View Post
    Good morning Mr.Tee ..

    They told me the water yesterday was the 20 lb hammer version ...
    All those guy are truly iron men , make's me wanna do 15 minutes on my inversion table just thinking about it ...

    The factory 280 bracket has a 2" setback that's built into the neck . It has two sets of cyl bosses that lets you run a full length cylinder vertical or the shorty in the horizontal position . It also uses that two inch's as a lever to put more stress on the fulcrum point ( like a long breaker bar) . As they say ... no free lunch . You trade ease of installation for a vulnerable part when racing in insane weather conditions.


    What TUX is talking about , is a bracket that split in the front on one side and the top on the other . We , notched , welded ,wrapped , side plated and then bored the tilt hole , pressed in a 6061 tube and then pilot reamed it to final size .
    I have done a couple more since then . Haven't heard back , so I guess that mean's the fix is still working ...



    I like the modified 3L brackets that you have done for me even more now

    Joe

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  4. #243
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    Thank you Joe , it's kind of amazing that 2" built into the bracket ( 8" vs 10" ) equates to a 20% increase in static load . Shock loads must go off the chart to snap the front completely off like the one in the picture the Capt. Dave posted ...

    Dave , I'll be interested to see if the top cylinder pin bent . Even though it is made out of expensivtanium , it looks like it in the only thing of substance holding the motor on ..

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  6. #244
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    .


    Chaz please post pics for those in slow special education class...like me






    .

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  8. #245
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    I would think some of those pictures would be blurred out or pixelized to protect the procedure!

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  10. #246
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    Not necessary!...
    Give most the materials, welder and seat it will probably not be done correctly!
    Keep in mind there are very important tolerances that need to be kept. Not to mention you need a REAL welding machine to weld a piece that big and heavy. Also hard to duplicate someone’s knowledge or talent.


    MeCap, great picture!
    Not hard to tell why that area would be a weak link. These 15” swivel sections are such a large and heavy piece of aluminum that the shear weight alone is an issue.
    We usually try to watch for hair line fractures regularly.

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  12. #247
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    It certainly doesn't help matters that the 3.2 powerhead weighs 100#s more than the 2.5 powerhead the swivel bracket was designed to carry. I feel bad for the guys breaking them and having it cost them the race.

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  14. #248
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    Racing has always been about pushing parts to their limits . Breaking them , building them stronger and moving on to find the next weak link in the chain . Nature of the beast .
    They say , that you must first finish , to finish first .
    Not saying that racers are going to purposely go any easier , but it might be a blessing in disguise knowing that there are still vulnerable parts in the driveline that they need to protect , just as a NASCAR driver need to manage tire wear ...

    Can you imagine , it take a 270 pound ingot to start cutting a billet swivel bracket ..

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  16. #249
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    AZMIDLYF = thinking I want to be on my tip toes looking through that window.
    I CAN ALWAYS MAKE ANOTHER DOLLAR, BUT I CANNOT MAKE ANOTHER DAY

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  18. #250
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    Quote Originally Posted by Rayzor View Post
    It certainly doesn't help matters that the 3.2 powerhead weighs 100#s more than the 2.5 powerhead the swivel bracket was designed to carry. I feel bad for the guys breaking them and having it cost them the race.
    Now just imagine the Xcat guys running the 400 ROS hanging off that same bracket!!

    That's why we have been working on a beefed up billet version!

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  20. #251
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    Quote Originally Posted by Chaz View Post

    Can you imagine , it take a 270 pound ingot to start cutting a billet swivel bracket ..
    the ingot weighed 197lbs !!

    Click image for larger version. 

Name:	19434.jpg 
Views:	81 
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ID:	392776

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  22. #252
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    Quote Originally Posted by Todd D View Post
    the ingot weighed 197lbs !!

    Click image for larger version. 

Name:	19434.jpg 
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    cant wait to see the cost!

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  24. #253
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    Well, the other cost them a World title.
    I CAN ALWAYS MAKE ANOTHER DOLLAR, BUT I CANNOT MAKE ANOTHER DAY

  25. #254
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    Quote Originally Posted by Todd D View Post
    the ingot weighed 197lbs !!

    Click image for larger version. 

Name:	19434.jpg 
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ID:	392776
    Aluminum is like beef . The bigger the slab you start with , the closer to the bone you can carve it to get more steak's out of it .

    Time to feed the chip conveyer 160 pounds or so ...


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  27. #255
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    I'm impressed with the shop floor covering. Some short collectors on the pipes too.
    I CAN ALWAYS MAKE ANOTHER DOLLAR, BUT I CANNOT MAKE ANOTHER DAY

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