Trans Protection and Rear Wing Chassis Mount

I am long overdue for an update so here goes. I have been slowly working on the rear car and putting together a solution to protect the transmission and also provide a rear wing mount.

These were the inspirations.
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Welded some mounts to the rear chassis brace.

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Set up the frame for this structure. I used clevis ends on the tubing ends to attach to the chassis. That way I can remove the whole structure if I need to pull the engine.

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Fabricated some saddle gussets to reinforce the cross members.

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I cut away a lot of the rear bumper. The plan is to replace the cutout with a black metal mesh and then just go with a pair of circular tail lights on the ends. The rear wing supports would then attach through there along with running the exhaust through the center.

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I have a cross member that protects the transmission.

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The whole thing can rotate up or be completely removed.



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Definition: SIP, or session initiation protocol is a signaling protocol for IP-based telephony applications. A signaling protocol provides the control layer for communications such as the establishment and release of a voice call.

History of SIP
Previous signaling protocol such as SS7 were designed for circuit-switched networks. These networks use dedicated T1 channels for carrying telephony communications and signaling. With dedicated T1 channels, SS7 is able to provide high-quality voice communications, but at high cost due to the requirement of end-to-end dedicated channels. With the advent of IP and packet-based networks, telephony traffic could be routed more efficiently and cheaply. But this required a new packet-based signaling protocol to be developed. SIP was born. Initially designed for voice communications, today it can manage instant messaging, video conferencing, and file transfers.

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More Panels, Tabs, and Rivnuts

I think I am overdue for an update!

My goal is to rivnut most of the panels. This requires fabricating and welding on a bunch of tabs.

Front underbody:

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Center underbody:

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Side body panels (with CF splitters):

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I picked up a JD2 M3 tube bender for building my own rear chassis wing mount/transmission protection.

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Digging the open rear end and the rear attached wing supports; wonder if anyone has tried this.

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Tube Bender

Got my new JD2 Model 3 Tube Bender in preparation for building the transmission protection/chassis mount wing. I ordered a 1″ die. Most use concrete anchors to fix the pedestal to the garage floor. But I want a temporary location, so decided to use the lift. I fabricated a mount for the lift. Then tube bender pedestal bolts to it.imageWelded up the mount frame.

 

imageAdded the cross members to bolt the pedestal.

 

imageAdded a little paint to match the pedestal and bolted on the pedestal.

 

imageAttached the tube bender assembly.



Front Firewall and Intrusion Panels

Finished most of the front firewall, intrusion panels, and interior panels. Rather than using rivets and drilling into the chassis tubes, I ended up welding on a bunch of tabs and using 1/4 and 10-32 rivnuts.

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For the intrusion panels, I used 6061-T6 1/8″. The interior panels were actually the FFR exteriors, but I trimmed them for the interior. All the panels are then fastened using 1″ counter sunk spacers.

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Also cut away the door mounts.



Bye Bye STI

Off to a new home in Oregon…

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Shafted

Man, you guys make it sound so easy! Tried the hose clamp method without any luck. I am using the STI rear shaft. The groove in the FFR shaft is deeper and looks wider. I think that makes easier. Yet another STI issue it seems.

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Damaged Axle Shaft

I was having a hell of a time trying to get the rear outer CV back onto the rear axle shaft. The circlip was a real bitch. Using a hose clamp and a hammer didn’t work. So I took the 12 ton press to it and damaged the splines.

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The sad thing is I only removed the rear outer CV to investigate which axle shaft to use. Then discovered the rear shafts were the ones.  Sigh….off to eBay to find another rear axle assy.