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-   -   FC Lower arm bar (https://rotarycarclub.com/showthread.php?t=12401)

Turbo II Rotor 10-08-2012 11:12 AM

Quote:

Originally Posted by vex (Post 129570)
Wouldn't you get more rigidity out of a strictly welded bar... though if you're using aluminum it will deform.

Good how-to.

That's how I made mine. Copied Brians design for the weld on tabs for the control arm mounts and welded a bar straight between them.

http://i79.photobucket.com/albums/j1...-47-22_112.jpg

Raksj04 10-08-2012 01:55 PM

Quote:

Originally Posted by Turbo II Rotor (Post 217665)
That's how I made mine. Copied Brians design for the weld on tabs for the control arm mounts and welded a bar straight between them.

http://i79.photobucket.com/albums/j1...-47-22_112.jpg

Could you post more pics?

TitaniumTT 10-08-2012 02:21 PM

Specifically of the engine bay :suspect:

Turbo II Rotor 10-08-2012 04:50 PM

Quote:

Originally Posted by Raksj04 (Post 217685)
Could you post more pics?

Sure thing Rich. I still need to pull it back off and paint it, bare metal rusts with the quickness here in the north east. I made it with the cross tube short enough to fit a socket up on the inside bolt. I used 3/16 plate and traced out the control arm bucket over top, cut it out and welded it to the inside. I then bolted the mounts to the car, measured and cut my 1 1/2" square tube to 24 1/4", hammered it in and welded it in place. I also drilled and tapped the buckets for a zerk fitting so I can grease my delrin bushings on the car.

Flux core FTL. I need to set up an argon tank for my welder.

http://i79.photobucket.com/albums/j1...-13-38_753.jpg
http://i79.photobucket.com/albums/j1...-14-20_861.jpg
http://i79.photobucket.com/albums/j1...-14-45_621.jpg

Quote:

Originally Posted by TitaniumTT (Post 217688)
Specifically of the engine bay :suspect:

http://i79.photobucket.com/albums/j1...-34-32_756.jpg

Raksj04 10-08-2012 06:10 PM

are those the stock Control arm buckets? also would it be worth while to turn this design into a K style support bar?

Turbo II Rotor 10-08-2012 06:31 PM

Yes, stock buckets. What do you plan on triangulating the bar to? Something like this?

http://www.ebay.com/itm/ULTRA-RACING...ht_4259wt_1017

I don't see much of a point if you have a strut tower bar as that will box the top of the suspension. I have the Mazdatrix one (seems like they don't make it anymore) which triangulates into the firewall and is very rigid. I haven't driven the car with the lower arm bar yet but I notice a difference when jacking the car up.

http://i79.photobucket.com/albums/j1...-10-10_148.jpg

TitaniumTT 10-09-2012 07:54 AM

Quote:

Originally Posted by Turbo II Rotor (Post 217701)
I also drilled and tapped the buckets for a zerk fitting so I can grease my delrin bushings on the car.

That's a cool idea right there

Quote:

Originally Posted by Turbo II Rotor (Post 217701)
Flux core FTL. I need to set up an argon tank for my welder.

Yes... most definately...

is the car driveable? Planning on bringing it up to that auto-x deal if you attend? If you don't I could meet you that night in SW CT

2gslse 10-09-2012 11:20 AM

Please tell me that you have jack stands under the car also not just the cinderblock shown in the picture. That is one of the worst things you could use and its in the weakest position also it doesn't take much to collapse a block that direction. The brace looks good I just want you to stick around long enough to use it.

Turbo II Rotor 10-23-2012 11:58 PM

Yeah they aren't the only thing keeping the car from crashing down.

Took some pics when I removed it from the car for paint.

http://i79.photobucket.com/albums/j1...-38-10_357.jpg
http://i79.photobucket.com/albums/j1...-38-41_749.jpg


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