Full Roller Suspension Vs Coil Overs

Discussion in 'Classic Mustang Specific Tech' started by BaLleRz68, May 8, 2013.


  1. BaLleRz68

    BaLleRz68 Founding Member

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    I’m debating between a street or track full roller setup or coil over setup for my 67. I plan on doing some auto crossing and was wondering if anyone regrets buying there coil over setup. Anyone like the full roller setup better than the coil over setup? Any input is appreciated. Thanks.
     
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  2. rbohm

    rbohm Founding Member

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    why not do both? all a coil over system is, is a kit that allows the coil springs to be mounted directly on the shocks themselves, and there are coil over shocks available for the stock mustang suspension. the rollers only indicate the use of spherical bearings at movement points. understand that when you do that though, you will have greater ride harshness due to the lack of compliance in the bearings compared to rubber bushings.
     
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  3. jikelly

    jikelly Advanced Member

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    I've done neither on my 73. But, I did lower the front a couple inches and same in the rear. The ride is rough but the suspension works well on a auto crossing course. I installed poly bushings all around BTW. I would like to try progressive rate springs and something, anything, to get the play out of my steering.
     
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  4. horse sence

    horse sence Please don't call me Mom SN Certified Technician

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    if you have play in the steering it is most likly the idler arm or a loose box.
    the box can be tightened at the top with the stud and nut
     
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  5. rbohm

    rbohm Founding Member

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    sometimes the box can be tightened up. if not then it needs to be rebuilt.
     
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  6. fostereast

    fostereast Member

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    The coil over systems I've seen do not keep the spring perch, but the rod end of the coil over shock acts like a spherical bearing.

    People that have used OpenTrackers or SoT's roller spring perches do not indicate the ride is harsher than with standard rubber bushed perches. some indicate the ride is smoother after the change. According to some of the information I've read, the Ford spring perch in the 60's was originally designed with a brass bushing, but was changed to a rubber bushing for cost reductions.

    I vacillate back and forth over the two paths (modern coil over vs. roller perches, etc...) and keep hoping someone with a well set up roller perch setup, switches to the SoT setup and gives a good before and after review. In the end I'll probably go with the roller perches, since I can upgrade components one at a time.

     
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  7. rbohm

    rbohm Founding Member

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    these days yes, swapping to the roller perch may improve ride quality on some cars because the old perches were bound up and not moving. but if you were to compare the original equipment rubber bushed spring perches that were operation properly with the roller spring perch, you would notice a difference in ride quality, the rubber bushed perches being the better riding ones.
     
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  8. fostereast

    fostereast Member

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    The rubber bushed perch in "new" form also has binding because of what it is and the fact it can't rotate w/the shock and spring travel. So, I suspect in many driving situations the ride is not rougher with a roller perch. One consideration to this contradictory situation (one would think rubber is a better damping tool that a roller bearing) is that the shock is now moving more freely and the whole suspension can do its job better. I'll never know for sure though because I'll never have an "as new" suspension with rubber perches that I swap to roller perches.

     
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