Started on my 4 Link Today..........
Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
chassisworks battlecruiser kit, got it measure/cocked and tacked today...... gotta run it tommorow morning to be tigged
from 4 link bracket to 4 link bracket, i have 25 inches with 1.5 inch of clearance between the bracket and the frame rails
streetcar






from 4 link bracket to 4 link bracket, i have 25 inches with 1.5 inch of clearance between the bracket and the frame rails
streetcar






Last edited by Viking War Hammer; Sep 16, 2008 at 03:03 PM.
looking fun
I started a 4link project on my rx3 a couple of years ago but never completed it, it was supposed to become a street/drag car but now it is only collecting dust.


maybe i should've let a pro do the chassie setup.. it's never to late i guess
Good luck man!
I started a 4link project on my rx3 a couple of years ago but never completed it, it was supposed to become a street/drag car but now it is only collecting dust.
maybe i should've let a pro do the chassie setup.. it's never to late i guess
Good luck man!
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Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
You got anymore pictures? Like one from the back looking into the trunk at the crossmember?
Diagonal bar for sure. The panhard lets the rear end walk sideways in the chassis as the chassis seperates. I just get weirded out by that. Besides, you *should* have more room under there by using a diag vs a panhard. Just my meager opinion.
Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
thanks doc,
do you guys have a good way at determining how high my crossmember needs to be mounted in the car? Like, it needs to be 12 inches off the ground, and so and so?
I know my bottom 4 link bar needs to be parallel...... sooooooo
I want my car to sit low, so I need to make sure my crossmember is at the right spot and make sure the crontrol arms are at the right angle.......
do you guys have a good way at determining how high my crossmember needs to be mounted in the car? Like, it needs to be 12 inches off the ground, and so and so?
I know my bottom 4 link bar needs to be parallel...... sooooooo
I want my car to sit low, so I need to make sure my crossmember is at the right spot and make sure the crontrol arms are at the right angle.......
thanks doc,
do you guys have a good way at determining how high my crossmember needs to be mounted in the car? Like, it needs to be 12 inches off the ground, and so and so?
I know my bottom 4 link bar needs to be parallel...... sooooooo
I want my car to sit low, so I need to make sure my crossmember is at the right spot and make sure the crontrol arms are at the right angle.......
do you guys have a good way at determining how high my crossmember needs to be mounted in the car? Like, it needs to be 12 inches off the ground, and so and so?
I know my bottom 4 link bar needs to be parallel...... sooooooo
I want my car to sit low, so I need to make sure my crossmember is at the right spot and make sure the crontrol arms are at the right angle.......
well..... my chassis guy welded my crossmember directly tot he two side rocker panels. When I think back on it, It seems like they are always mounted this way. Ive never seen em mounted higher than that. The rear frame rails can be taller or shorter, and then you mount the front bar brackets to that. The higher up you mount em, the lower the car will sit. See what Im sayin? Thats JUST MY OBSERVATION. I am by no means a chassis guy.
Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
well..... my chassis guy welded my crossmember directly tot he two side rocker panels. When I think back on it, It seems like they are always mounted this way. Ive never seen em mounted higher than that. The rear frame rails can be taller or shorter, and then you mount the front bar brackets to that. The higher up you mount em, the lower the car will sit. See what Im sayin? Thats JUST MY OBSERVATION. I am by no means a chassis guy.
I was also told that I could weld it directly beween the frame rails.
Take a look at these 1st gen RX7 pictures. Let me know what you think since they were done completely different.
One had a square crossmember like mine, and he welding his on top of the frame rails. The other is using a roung crossmember. They are both using the trall brackets, mine are the shorter ones. Just trying to get a idea if mine should be mounted on top of the frame rails are between.

well, the first thing I think of is, with the factory frame rails intact, it limits how low the car will sit. Like, on that second pic, half of that upper bracket looks wasted, cuz they wont be able to get the car low enough to ever use it, cuz the frame rails are in the way. I would think you would just cut that **** out and make your own frame rails. I guess you would keep it if you wanted your **** to either A) look more stockish, or B) were required by a certain class to have certain frame rails intact or some ****. My rear end sits INSIDE the damn car, there is NO WAY I could have the car as low as I do if the rear floor were still at its origional height.
Allen should be chiming in! That bastard works at a damn chassis shop! Why is he holding out on us!?!?!?!
Allen should be chiming in! That bastard works at a damn chassis shop! Why is he holding out on us!?!?!?!
Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
well, the first thing I think of is, with the factory frame rails intact, it limits how low the car will sit. Like, on that second pic, half of that upper bracket looks wasted, cuz they wont be able to get the car low enough to ever use it, cuz the frame rails are in the way. I would think you would just cut that **** out and make your own frame rails. I guess you would keep it if you wanted your **** to either A) look more stockish, or B) were required by a certain class to have certain frame rails intact or some ****. My rear end sits INSIDE the damn car, there is NO WAY I could have the car as low as I do if the rear floor were still at its origional height.
Allen should be chiming in! That bastard works at a damn chassis shop! Why is he holding out on us!?!?!?!
Allen should be chiming in! That bastard works at a damn chassis shop! Why is he holding out on us!?!?!?!
Allen works at a chassis shop? What the heck, why's he holding out?
Thread Starter
Joined: Jan 2007
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From: Saint Louis / Illinois
Crossmember height/location. This is what I need to know. Mount between frame rails or on top of frame rails? Or to the rear bumper?
Let me know chassis guru.
It's light.
Don't worry about the frame rails. Make it so that the bottom of the crossmember is flush with the bottom of the rocker (not the pinch weld) and then you can figure how to tie in the frame rails. Make sure to "plate" the area where the crosmember welds to the rocker also.
Don't worry about the frame rails. Make it so that the bottom of the crossmember is flush with the bottom of the rocker (not the pinch weld) and then you can figure how to tie in the frame rails. Make sure to "plate" the area where the crosmember welds to the rocker also.






