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Rear 4-link

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Old 08-22-2010 | 05:51 PM
  #16  
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From: Hesperia
Year: 89
Model: Cherokee
Engine: 4.0
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Originally Posted by Jeep450r
Have you run any numbers on this build through a 4 link calculator?
How does the rear end react under acceleration? Does it squat? Raise?
How about braking? Excessive brake dive?
no i dont have a 4-link calculator and im trying to find out how important that stuff is. im not going to be running king of the hammers in it so its not like i need the best of the best, i just want it to be simple yet ride nice and flex good.
Old 08-22-2010 | 06:06 PM
  #17  
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From: Hesperia
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iv been messing with the 4 link calc on pirate 4x4,
what are some of the things i should be looking out for when setting it up? and alot or a little of what is good or bad?
so far iv learned that the anti squat should be between 80 and 120% and the roll axis as close to zero as possible.

Last edited by sandaddik2; 08-22-2010 at 06:21 PM.
Old 08-23-2010 | 02:41 AM
  #18  
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Originally Posted by sandaddik2
no i dont have a 4-link calculator and im trying to find out how important that stuff is. im not going to be running king of the hammers in it so its not like i need the best of the best, i just want it to be simple yet ride nice and flex good.
My comment was pointed more at chattacuda to see how his numbers reflect on how it performs
Old 08-23-2010 | 09:04 AM
  #19  
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From: Dayton, TN
Year: 1993
Model: Cherokee
Engine: 4.0 stock
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Originally Posted by sandaddik2
okay sweet thats the type of design i was looking for. if your trying to make the upper arm angles as wide as possible why didnt you make them longer and spread them out? im sure has to do with the geometry on this one.
what are the eye to eye lengths of the upper and lower arms on yours?
once i have those i should be able to get pretty close as far as the angles.
and is that 2x6 box tubing that you used for your cross member?
sorry for all the ?s lol
Sorry, I meant get lower arms wide on axle, not uppers. Lower links are 36 inches long and uppers are 33. Yes, cross member is 2x6 tubing. Lower links are 46 apart on axle and 5 apart on crossmember. Uppers are 16.5 apart on crossmember and meet on top of axle housing.
Old 08-23-2010 | 09:28 AM
  #20  
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From: Dayton, TN
Year: 1993
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Originally Posted by Jeep450r
Have you run any numbers on this build through a 4 link calculator?
How does the rear end react under acceleration? Does it squat? Raise?
How about braking? Excessive brake dive?
No, i havent used the 4 link calculator. I dont drive it on the street, so dont know really how it would do on a hard brake. The front end is pretty soft by design so I am sure it would dive some just like any car. As far as squatting on hard take off, it is hard to say. My sense is it does not, but I have never actually watched someone take off hard it it. Sorry not much help on your questions, but spends all its time offroad. All I know is it goes good and flexes good enough for me.
Old 08-23-2010 | 04:15 PM
  #21  
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From: Hesperia
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well i took the widths of your links and put them into the calc with the angles i already had and it improved my numbers some, if i had the angles of your arms id be able to tell you what the numbers are, but i figure thats what matters is just if it works for you or not, i already have the calculator so i might as well use it, who knows maybe i can get the geometry set right then add coilovers down the road so i can hit some whoops and not bounce out of the seat lol
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