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CompOrangeSN95

Push rod suspension

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So my father and I have been beefing up the roll cage and IRS in the Daytona. The lower control arms are known to break under hard racing conditions because they take all of the lateral force while accelerating and braking. Our solution is to beef up the upper control arm to take 1/2 the stress off the lower. The only problem with this is beefing up the control arm made us relocate the coil over. Since there was no room left to connect it directly to the lower control arm we came up with a push-rod setup. Here's a teaser pic... you guys are the first to see it.

fC6f32j.jpg

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Thanks! I know what you mean Dan... I have a thing for suspension in general and the push-rod is always bad ass. I'm ridiculously excited to get this project to the drivable stage. Here's a decent pic of the cage upgrades we are doing. Door bars FTW!

7kTNZpM.jpg

edit: you can kinda see the 11" driveshaft... gives you an idea of the wheel base and engine location.

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And by Daytona, I assume you mean this is a Shelby Daytona kit car? If so, that is one of the projects on my bucket list. Something about the rear end of the car and that reverse tilt hood just does it for me.

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I haven't updated it in a while since I don't have internet at my house right now but here is a link to the photobucket gallery: http://s116.beta.photobucket.com/user/MsakingTapeMan/library/Type%2065%20Coupe.

For reference this is the car shortly after shooting the first coat of filler primer the last week in December.

JAOUecx.jpg

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Just looked through the photobucket album, that looks like such a fun project! Sounds pretty nasty with open headers too, lol...reminds me of how monster trucks sound.

So did you guys make the pushrod bellcrank yourselves or is that an off-the-shelf piece? I'd love to see more pics of the control arm changes and such.

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we designed the bellcrank and wire EDM'd it out of a piece of 2024-t4. The pushrod is 304ss with chromolly heim joints. The upper control arm is still in the modeling stage. We are replacing the stock bushing with a heim joint and adding an additional heim joint to triangulating the arm back to the knuckle (i wish I was better with descriptions). I will definitely keep you updated with more pictures as we go along.

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Sounds awesome and that is some hard core suspension fab when you start making your own bell cranks and such, maybe someday I'll be comfortable enough with my skills to do some of that :thumb:

Vaughn Gittin Jr.'s RTR-X mustang is what tipped off my pushrod suspension obsession, with it's Maier Racing Extreme rear suspension:

RTRX-6.jpg

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update for Dan... Here's a pic of the upper control arm mod that we are working one. Unfortunately there was binding after we tacked everything together so we went back to the computer to see what we did wrong.

LJ7P4Lf.jpg

Our issue is that the bottom control arm is mounted on an angle. In order to triangulate an upper control arm we need to do one of two things: 1. Make the upper and lower equal length. 2. Modify the lower control arm to mount straight. Since we are using the rule of 2/3 for camber vs. compression option 1 is out. We will be modding the lowers this week and fabricating new uppers before the weekend comes. A friend of ours is a welder by trade, so he's going to come over to my Dad's house on Saturday and finish weld the cage and suspension components.

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What an awesome project!

A friend of ours is a welder by trade, so he's going to come over to my Dad's house on Saturday and finish weld the cage and suspension components.

I wish I could do this for someone. I would love to weld on race cars all day!

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update for Dan... Here's a pic of the upper control arm mod that we are working one. Unfortunately there was binding after we tacked everything together so we went back to the computer to see what we did wrong.

LJ7P4Lf.jpg

Our issue is that the bottom control arm is mounted on an angle. In order to triangulate an upper control arm we need to do one of two things: 1. Make the upper and lower equal length. 2. Modify the lower control arm to mount straight. Since we are using the rule of 2/3 for camber vs. compression option 1 is out. We will be modding the lowers this week and fabricating new uppers before the weekend comes. A friend of ours is a welder by trade, so he's going to come over to my Dad's house on Saturday and finish weld the cage and suspension components.

Ugh, so jealous of this, even the issues...that's what makes it a challenge! I love fabricating, I sometimes miss being the metal fab guy at work for our prototypes.

Fabrication is pretty much porn to me, and suspension fabrication takes it up another notch. Please keep me updated on this as it progresses, this is a huge bag of awesome.

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Wow. This build is awesome. Are you guys gonna paint it all or get it all powder coated once its all fabbed up?

We are going to powder coat all the removable parts, but the IRS cage/mods and the additional door bars will just get painted. The chassis came powder coated from FF5 because at the time we hadn't planned on getting this crazy with the build. We'll put a nice coat of paint on it and blend it all in.

Dan, It's definitely the most fun build I have ever been a part of. You can bet I'll keep you updated, I think we share similar interests when it comes to suspension and fab work. (I can't look at your engine thread at work...)

Thanks Steve! He said he charges $75 an hour but since we are friends he would do it for $25 an hour!? We plan on throwing him some extra cash tho, I don't think $25 is a fair price. That being said, I would love to build racecars for a living but right now it will stay a hobby. Maybe that will change when I start pissing on Ferraris at the track and the money bags start questioning the car/work that went into it.

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