Do I need a X brace in my chassis? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 04-04-2007, 09:15 AM
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Do I need a X brace in my chassis?

There has been several comments to the effect that I need an X brace in my chassis. One comment was to keep the frame rail from creeping forward on one side. Another was to shore up the structure in case of side impact. The third was the car will react better as a bracket car and therefore be more consistent. Should the X brace start at the back half and extend forward or at the trans mount and extend rear ward? How far should the X Brace extend? If you do think I need an X brace what size box tube should I use? The chassis is 2x3 130 +- wall. My reservation is the weight even though this is a bracket car I donít want it to be a brick. If you need a better understanding of the project see my journal or ask and I will upload more pics.

Bob
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Old 04-04-2007, 10:53 AM
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When in doubt ... make it stout ...



Here is the frame for my car ... notice the double K members ...
with as much horsepower and tire as you have ... a X or double K should help. I know the roll bar cage will stiffen it some ...
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Old 04-04-2007, 12:29 PM
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Do I need an X brace in my chassis?

Thats a great pic, and helps me a lot. This is my first build so forgive if I seem a little ignorant. I like the K member better than the X member. It's lighter and I think it provides the structure I need.

Thank You

Bob
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Old 04-04-2007, 02:09 PM
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Quote:
Originally Posted by Quarter Flash
Thats a great pic,
Bob


I am a visual type ... If I see something ... I can make sense of it a LOT better than the written word ... Here is the 4 link I have in the rear. It rides on coils springs ... if you look closely ... you can see the coil cans ... the coil springs were at the powder coaters when this photo was taken ...

Deuce ... Moderator
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Old 04-04-2007, 06:28 PM
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That is a great journal you've started, Quarter..Just went through it, you've done a great deal of work so far. Keep us posted, it will be cool to see the car on the track and the results. Deuce look like he has the right idea with the K members. That along with the cage and eveythin tied together should make a very stout car. Dan
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