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First Gen. OME coil info

Discussion in 'Suspension' started by Leadgolem, Oct 10, 2010.

  1. Oct 10, 2010 at 2:20 AM
    #1
    Leadgolem

    Leadgolem [OP] Well-Known Member

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    I've been doing some research on the OME coils and thought I'd share. This is specific to first gens.

    The spring capacity ratios are designed to give you a reasonable idea how much more spring capacity you'd want for heavier front accessories to maintain ride quality, such as a bumper/winch. I used the curb weight of my 1998 4wd xtracab manual for these calculations (3345 lbs), it shouldn't make much of a difference if you have a v6 (3410 lbs). I don't know the weight distribution of our trucks so I can't tell you exactly how much weight is being born by the front coils. (So, the accessory weights lower down are likely to be a bit high.) If somebody knows the weight distribution please share so I can update the figures.

    Also, heavier accessories on the rear are not going to make any difference as to what coils you want up front. The weight there isn't going on the coils anyway.

    By comparing various lift products I got a spring/spacer lift ratio of 1.66 to 1. Meaning a coil (or spacer) that, once under pressure, is 1" longer should provide 1.66" of lift. This took a while to figure out, and I'm not sure it is totally accurate.




    Coil 880
    Spring length 14.37"
    Spring rate 502 lbs/in
    Total spring capacity 7213 lbs
    Lift amount 1 in (This is from the toytec site and used as baseline.)
    Spring capacity ratio 2.15


    Coil 881
    Spring length 14.76"
    Spring rate 502 lbs/in
    Total spring capacity 7409 lbs
    Estimate lift amount 1.64"
    Spring capacity ratio 2.21

    Recommended additional accessory weight 91 lbs
    Estimated lift with accessories 1.46"


    Coil 882
    Spring length 15.55"
    Spring rate 502 lbs/in
    Total spring capacity 7806 lbs
    Estimated lift amount 2.88"
    Spring capacity ratio 2.33

    Recommended additional accessory weight 285 lbs
    Estimated lift with accessories 2.02"

    FYI: The estimated lift is after the springs settle. Before that they will be about 1/2" higher.
     
  2. Nov 10, 2010 at 9:20 AM
    #2
    scocar

    scocar being weird again....still

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    15 DCLB x4 SR5, 01 Xcab TRD x4 V6 Man. SR5
    01: OME 881s, Dakars, greasable shackles, Nitrocharger sports, extended exhaust hanger, BAMF BPV relocate, Wheeler's extended brake line, rear diff breather mod, swaybar removed, Pilot backup lights, Redline hood struts, 4Runner 5-stars, Hidden Hitch Class III, 7-pin marine-grade wiring
    Nice job, Leadgolem.

    Mods, I recommend sticky in the first gen forum, or sticky it in Suspension, but it definitely needs "1st gen" added in front of the title in that case.

    I found some other info when I was researching and need to dig up the PDFs on a great magazine article that compares them and some other specs, and I will attach them...once I find them.

    Of note:

    The OME coils are nonprogressive, but the stock OEM coils are progressive.

    This table from Cruiser Outfitters is the most helpful thing around for tech spec, and it is comrensive, not just limited to 1st gen or Tacomas:
    http://cruiseroutfitters.com/tech_OME_coils.html

    And their offerings for 1st gen kits:
    http://cruiseroutfitters.com/sus_Tacoma.html

    ARB's "spec sheet," which is less technical and seems more focused on marketing, is attached.

    The Wheeler's link, with some helpful guidance, but again unfortunately less technical, info:

    http://www.wheelersoffroad.com/ometaco.htm
     

    Attached Files:

    Last edited: Aug 22, 2014
  3. Nov 10, 2010 at 5:36 PM
    #3
    malander

    malander That's some tight butthole

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    deck plate mod,jba cat back,bilstein 5100's,ome 883 springs, Allpro expos, allpro U-bolt flip kit, 10" Bilstien 5150 shocks, custom lower shock mounts
    dont forget 883s can also be used on 1st gens! they arent made for it but whateva...
     
  4. Jan 4, 2011 at 5:49 AM
    #4
    fsbrain03

    fsbrain03 Well-Known Member

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    Thanks for the info!
     
  5. Jun 6, 2011 at 11:31 PM
    #5
    Scott78

    Scott78 Well-Known Member

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    Will the progressive vs. Non-progressive be an issue? Are toytec progressive?
     
  6. Jun 7, 2011 at 1:06 AM
    #6
    Scott78

    Scott78 Well-Known Member

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    I'm still lost with these fucking lifts, even after reading until the threat of divorce.

    On several sites, the complete OME kits are either heavy or light (stock). I don't plan on putting a winch bumper or aftermarket bumper on the front, but I do plan on putting a canopy on the truck and I tow a pop-up camper every other week with a decent load in the bed.

    So do I get the light kit with the extra D6XL, the heavy kit by itself, or the heavy with the D6XL?

    By kit I mean new leafs as well as the new front, I'm not a bit fan of just doing an AAL alone for the rear.
     
  7. Jun 7, 2011 at 11:20 AM
    #7
    scocar

    scocar being weird again....still

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    01: OME 881s, Dakars, greasable shackles, Nitrocharger sports, extended exhaust hanger, BAMF BPV relocate, Wheeler's extended brake line, rear diff breather mod, swaybar removed, Pilot backup lights, Redline hood struts, 4Runner 5-stars, Hidden Hitch Class III, 7-pin marine-grade wiring
    Yeah, it's a brain fuck and time drain.

    Why don't you give Wheeler's Offroad a call and discuss your needs. They are very helpful. Unhurt your brain some...
     
  8. Oct 4, 2011 at 4:17 PM
    #8
    lennys

    lennys Well-Known Member

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    I put OME 882s with a elite bumper and smitty 8k winch 158lbs added,then changed to the Icon extented C/O with a 13" 650lb spring,The OME gives my truck a 1/2" more of lift and rides night and day better on the road,:confused:
     
  9. Dec 14, 2011 at 1:25 PM
    #9
    Arctic Taco

    Arctic Taco Well-Known Member

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    I am planning on an ARB front bumper, and elite rear bumper and have a Daystar levelling kit waitng for me to get back stateside. However, I am leaning toward new shocks all around and maybe new coils up front. Any ideas?
     
  10. Jan 23, 2012 at 7:00 AM
    #10
    bigdaddytaco

    bigdaddytaco Well-Known Member

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    i have a ARB,with 882 it has been on for prob 4 to 5 years and is starting to sag in the front if i bought new 882 and put them on would it fis the sag for 4 to 5 more years ?
     
  11. Jan 23, 2012 at 7:07 AM
    #11
    bigdaddytaco

    bigdaddytaco Well-Known Member

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  12. Jan 23, 2012 at 9:55 AM
    #12
    scocar

    scocar being weird again....still

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    01: OME 881s, Dakars, greasable shackles, Nitrocharger sports, extended exhaust hanger, BAMF BPV relocate, Wheeler's extended brake line, rear diff breather mod, swaybar removed, Pilot backup lights, Redline hood struts, 4Runner 5-stars, Hidden Hitch Class III, 7-pin marine-grade wiring
    Most people who have Eibachs recommend the Billy 5100s set on zero for use with Eibachs. The Nitrochargers are designed and valved specifically to be optimal for use with the OME 880/1/2/3 coil 500 lb ratings. And they are more expensive than Billies.

    I have never heard of Nitros being paired with Eibachs.
     
  13. Feb 12, 2012 at 11:20 PM
    #13
    xxOkieTacoxx

    xxOkieTacoxx "The Mechanic"

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    What setting should I use for the bilstein 5100 adj and ome 881's? Just bought them and not to familiar on how to preload them. I have a 2.5" taller leaf lift in the rear than stock
     
  14. Feb 12, 2012 at 11:24 PM
    #14
    scocar

    scocar being weird again....still

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    You must set them on zero. The OME (and Eibachs) are much stronger coils than the OEM progressive coils, which is what the 5100s were designed to "level" or lift. The 5100s spring perches were not designed to handle the preload of the stonger aftermarket coils.
     
  15. Feb 13, 2012 at 12:27 AM
    #15
    xxOkieTacoxx

    xxOkieTacoxx "The Mechanic"

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    So the adjustable factor of my shocks is completly useless with ome coils? :/
     
  16. Feb 15, 2012 at 8:37 AM
    #16
    battleyota

    battleyota Well-Known Member

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    I have the OME 883 on my taco, along with the 3.4, ARB bumper. it started to sag within a year. Its a good ride, but I'm not impress with the way how it sags so fast. Wish OME would make a coil spring that can compensate on the weight of everything including a winch.
     
  17. Jun 14, 2012 at 10:31 PM
    #17
    Bennett707

    Bennett707 Yeti Hunter

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    so I plan to add a elite bumper to my front, looking for a 2-3 inch lift.
    thinking billy 5100's and 882's for the front and billys and a AAL in the back?
    how well would this work. o_O
     
  18. Jun 22, 2012 at 10:54 PM
    #18
    puddin67

    puddin67 Well-Known Member

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    im plannin on runnin 2 in shackles in the rear with 2 or 2.5 in spacers up front, anyone think this is a good or bad idea? the only real weight bearing accesories i have would be the westin bull bar up front, but i have not yet noticed any difference in my ride up front or the handling or spring sag
     
  19. Jul 9, 2012 at 3:10 PM
    #19
    cdnmtbkr

    cdnmtbkr Active Member

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    Just curious but what are the Toytec/Eibach springs equivalent to in OME? In other words:

    Toytec/Eibach stiffness = OME 880/1/2/3/4???

    I'm getting ready to pull the trigger on the lift/level I want to do on my '01 Taco but still confused as to which one to go with. Looking to level/lift and add 1-2" all around. Not going to be installing an aftermarket bumper or winch anytime and will be doing minimal off-roading (70/30 - highway/offroad). Just want the Taco to have a nicer, more even stance.
     
  20. Oct 2, 2012 at 6:54 AM
    #20
    Rebel Taco Man

    Rebel Taco Man Well-Known Member

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    the new coils are stronger than the stock ones, therfore its going to lift your truck without having to preload the shocks.
     
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