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what gauge steel to use for rear shock tower bracing
I am going to fabricate my own rear shock tower bracing since the elephant racing ones seem a bit over priced. Does anyone know what gauge steel should be used in this application? They will be similar to the EP ones in shape. thanks
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06-02-2023, 10:38 AM
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For $170 I’d just buy the kit unless you have the tools,skill,time and metal laying around. Some use 16 gauge for weight, folded and or dimpled for strength. Others use 1/8 plate 11 gauge I believe? for the tower gussets. Really depends on how strong your metal brake is and what other tools are at your disposal. Obviously the the thicker the metal the harder it is to work and the heavier it is.
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06-03-2023, 05:50 AM
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Yup, 16 ga if it's going to be U-shaped, 11 ga if a simple piece. I think you can get the kits cheaper, ~$80 or so.
The original RSR's also added patches to where the "crossmember" meets the "frame rail," as they also tend to crack there. And another patch underneath. There should be pics here somewhere of an original RSR car showing what the factory did. |
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06-03-2023, 08:52 AM
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I appreciate the help. 11g is about what I was thinking. You are correct on the cost vs time issue, but I do enjoy the fabrication part of the build. I don't have the talent or facility for most fabrication, but I like doing what I can.
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06-03-2023, 12:05 PM
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IMEO, it makes little sense to use 11ga plate and weld it to 18ga sheet metal of the crossmember or longitudinals. 18ga bent into a U channel will do a better job. If you use something that thick, make sure you spread out the loads at those points. Otherwise, if you really drive the car hard on a track, you will end up with cracking at those points.
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06-03-2023, 12:43 PM
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You have to do the welding anyway so it why spend $170. Takes 5 bucks in scrap metal. 1/8 plate
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06-03-2023, 12:49 PM
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Here's where the factory reinforced the tubs on the RSR's. These are also important because they'll rip out or crack if something isn't done when subjected to racing. Adding these patches, along with the shock tower gussets will help eliminate any "surprises."
  
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06-04-2023, 06:33 AM
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Quote:
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House producers wanted to end the show after season 8 to keep the enigmatic appeal of the central character and maintain the show's mystique. Ahhh The Mystique!!! |
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06-04-2023, 12:33 PM
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All good points. I cannot seem to find what gauge steel ER uses on their braces.
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06-05-2023, 04:42 AM
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Quote:
Weld the tops on the shock towers while you are at it. They are just spot welded and can be compromised with the added loads from coilovers. Last edited by Cory M; 06-05-2023 at 07:19 AM.. |
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06-05-2023, 06:10 AM
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