1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Latter bars or a 4 link?

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Old Feb 25, 2003 | 07:33 PM
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Latter bars or a 4 link?

Im gonna do my rear end mod after I do my body kit. The guy that I know that does race car chassis' asked me , if I wanted to go latter bars or a 4 link. He said a 4 link would require cuttin all the floor board out. But I thought latter bars were for leaf springs ? I didnt want to sound stupid but so I said Id think about it. Also talking about doing a 6 point cage all in chromoloy. Let me know you opinions...
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Old Feb 25, 2003 | 07:38 PM
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is it tuned yet :P

for the record, i have no idea what setup is best for you
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Old Feb 25, 2003 | 07:53 PM
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nope
working on it
I have to get ready for spring racing season, so I can do my POS 15's in a 1/4 LOL
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Old Feb 25, 2003 | 08:09 PM
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4 link is way better!!
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Old Feb 25, 2003 | 08:30 PM
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Yeah I know , but i dunno if I want to cut the entire floorboard out
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Old Feb 25, 2003 | 08:42 PM
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Mike it depends on how your going to drive it. on the street. or at the strip. ladder bars are cheaper, but for going straight. A 4 link for street. I say tub the rear some and cut the rearend for some large wheels/tires tucked up under the rear. and install the 4 link to the roll cage. 6 point would be perfect. get your body kit yet ??
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Old Feb 25, 2003 | 08:55 PM
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Yeah body kit is here, I wished i never bought one, should have juts done mini tubs
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Old Feb 25, 2003 | 09:08 PM
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Miek they are about the same. But a 4 link is more ajustable. With the lader bars you are stuck with a set instant center. With the ladder bars you can pretty much set the instant center to where veer you need it. Also with ladder bars as the suspension moves in the back the pinion angle will change more than it will with a 4-link setup.
It will also take about the same amount of cutting to do either setup. A four link will reqiure a sturdy crossmemeber from about 28-34" infront of the rearend depending on the ladder bars you use.

You will need the same with with the 4 link setup, but the front mounting points are a little larger.

Ladder bars are pretty easy to get setup. And you can see many a car at the track running really really fast with a simple ladder bar setup.
4-links can be a PIA utill you get them "tuned" and you know how it can be a real pain to get something "tuned"

Just remember AJC13b is running a stock rear suspension setup and gets some plumb nasty 60' and it still rides nice with a quiet rear suspension. Both ladder bars and 4-links will be pretty noisy and bind up pretty hard when the suspension tries to roll. Ride would be pretty crappy with low profile tires.

Just my .02
Later
Randy
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Old Feb 26, 2003 | 07:17 PM
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So what you think , do the rear end mod, and go with it like that? Or just drop some nice wheels and **** on there and lay into it till she breaks?
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Old Feb 26, 2003 | 08:17 PM
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https://www.rx7club.com/forum/showth...hreadid=156254
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Old Feb 27, 2003 | 08:03 PM
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Guess we will find out what goes first the motor or the rear end LOL

Thanks Randy
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Old Feb 28, 2003 | 04:38 AM
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Originally posted by Eville140
Miek they are about the same. But a 4 link is more ajustable. With the lader bars you are stuck with a set instant center. With the ladder bars you can pretty much set the instant center to where veer you need it. Also with ladder bars as the suspension moves in the back the pinion angle will change more than it will with a 4-link setup.
It will also take about the same amount of cutting to do either setup. A four link will reqiure a sturdy crossmemeber from about 28-34" infront of the rearend depending on the ladder bars you use.

You will need the same with with the 4 link setup, but the front mounting points are a little larger.

Ladder bars are pretty easy to get setup. And you can see many a car at the track running really really fast with a simple ladder bar setup.
4-links can be a PIA utill you get them "tuned" and you know how it can be a real pain to get something "tuned"

Just remember AJC13b is running a stock rear suspension setup and gets some plumb nasty 60' and it still rides nice with a quiet rear suspension. Both ladder bars and 4-links will be pretty noisy and bind up pretty hard when the suspension tries to roll. Ride would be pretty crappy with low profile tires.

Just my .02
Later
Randy
what website did you get those pics off? i would like to check out what they have to offer.
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Old Feb 28, 2003 | 05:04 AM
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http://www.artmorrison.com

right click on the photos and select properties
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Old Mar 2, 2003 | 12:24 PM
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I guess Ill just drop the car off over there and hope for the best. Say do what you think is the best
LOL
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Old Mar 3, 2003 | 09:55 AM
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How much HP/TQ do you anticipate putting to the pavement? I would be inclined to stick with the stock rear end (maybe do a panhard bar) and see how that lasts, especially if you're planning on this being a street terror not a dragstrip queen. If the rear doesn't hold up you haven't lost anything. I think the two set ups you inquired about are kinda noisey and rough for street use. I would definately go with a cage, though. You can always tie a 4-link or ladder bar set up into it later.
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