New Bilstein 8112 Coilovers !

I used J66 Deaver, for 1.75”

 

So below is the questions with answers i received from bilstein. Not sure if op doesn't know the product, is to busy, or don't give a fuck? I will be calling the North Carolina branch after work. Im not satisfied with theses answers! Email and phone numbers are below if anyone else wants to try?

Hello,
I have a few questions about the 8100 series.

1. What is the purpose of the elongated hole?
2. Does it matter if the the hole is facing out?
3. What are the max turns for the compression/rebound values?
4. Are the factory bumpstops still needed front/rear?
5. What is the recommended rear leaf to match the 8100?
6. Can you adjust the 8112 installed? If so should the threads be lubricated?
7. If and when is rebuild required, what is the process?

These are a few questions from tacoma world members. The 8100 series is starting to get quite a following.

https://www.tacomaworld.com/threads/new-bilstein-8112-coilovers.532739/page-21

Thank you for your time.

Hello,


1-Not certain what elongated hole you are talking about.

2-Not sure what hole is you are talking about.

3-In the instructions you will find the max ride height settings for the specific cab and bed configurationhttps://productdesk.cart.bilsteinus.com/media/products/bilstein/E4-WM5-Y542A00_0.pdf turning the spring seat to increase/decrease ride height does not change compression and rebound valving, it increases or decreases preload.

4-See attached email with my last response to this question.

5-8100 was tested with deaver expedition pack, icon mini pack, and OME packs.

6-We do not recommend adjusting height under load.

7-Shocks can be sent in for service, service intervals will be determined on use.



Thanks for your inquiry
Kind Regards,
Junior Africa
Technical & Warranty Support Expert
thyssenkrupp Bilstein of America, Inc

T: +1 858 386-5956, F: +1 858 386-5256, junior.africa@thyssenkrupp.com
thyssenkrupp Bilstein of America, Inc, 14102 Stowe Drive, Poway, CA 92064, USA, www.bilsteinus.com

 

Purpose of the slot on the spring seat is for debris and water to drain out. That is why it states to have it face inward because it is angled downward on the inside of the mounted shock.

 

Thx Blake!

 

Sorry, everyone. I don't get a chance to get on here too much. Forgive me! The best way is to call the shop or msg us on FB.

SO after I initially ran these we discovered a few setbacks and have worked with Bilstein Extensively on dialing in these units. Which still to this day they are possibly the most impressive Shock that we have tested and ran on the Tacoma. Right now I'm still blown away by them and I'm currently testing and doing some R&D on the King 3.0s but still left in awe on how well the 8112s and 8100s worked.

They designed the rears using Deavers and Icon 3 leaf and the fronts using Camburg UCA
But we have used Icon RXT and OME more than anything on the ones here at the shop for leafs. And our go-to arm is the Icon Delta Joint.

1. Hole purpose is to allow debris to not develop in the cup pocket. Also allows access to lube and to view threads. But needs to be positioned correctly to avoid road debris damaging the threads.
2. They limit consumer from over adjustments to a max of 19 11/16 total shock length at ride height which is about 2.2 inch of lift on average.
3. Factory bumps are still used and recommended. What are we referring as rebound stops?? The shock usually limits rebound.
4. No shock should ever be adjusted under load. But yes you can adjust on the truck. we have adjusted almost all coilovers on the truck Yes, any coilover should have the threads lubed before adjustment.
5. Recommended Rebuild is standard for any and every shock 30-50 k is recommended. but depends on use But the reality is no one in Toyotas rebuilds that often most go 60-100k if not more. Use and maintenance( cleaning) determine the likely hood of failure in most cases.

* A shock is a shock they are all the same just different tech to each. In the end, they are simply seals and oil. How they work is the tech but the designs are all the same for function*



We have worked with Bilstein to offer a different spring which is now available as an addition to the 8112s. During testing, we used 650 and 700 lb springs. I was running 700s during all the testing due to having a front bumper and winch. The SEMA truck we set up for Injen which belongs to MILKTEACOMA on IG runs 700lbs also.

https://www.rogue-offroad.com/product-p/b8-8112kit.htm

https://www.rogue-offroad.com/product-p/41-269282-41-269299-25-269802.htm

 

Thank you Shawn!

 

Can you explain the process for adjusting the 8112 correctly while still on the vehicle? What is the best way to remove the load?

Thanks in advance,

--d

 

I believe you would jack it up...

 

LOL!

Yea, got that... I guess, to be more specific, what Shawn was saying is to take the "load" out, and then you can adjust the 8112s at full droop after jacking it up of course or putting it on a lift --although the coil would still have the "pre-load" in it? Is that correct?

What makes this confusing is that Bilstein does not mention this in the instruction manual and actually says that you have to remove the preload using a coil spring compressor to adjust the ride height before installation.

So far I've only heard from one other user who has adjusted their 8112s while installed on the truck and they actually lessened the preload lowering the ride height instead of increasing the preload and raising the ride height --and they said it was a bear and couldn't imagine what it would be like to raise the ride height without removing the preload...

I'd like to know if someone has actually raised the ride height on the truck with 8112s and how they did it before tackling it myself.

Thanks!

 

Yes, jack up from the Frame. We do it on the lift here in the shop, which lifts from the frame. Every Coilover we do is adjusted on the truck. We have always only adjusted on the truck. We never have compressed the coil to adjust on any brand and for the most part, any vehicle In this video is an explanation of how. https://www.youtube.com/watch?v=rKUUmbhUrpg

We utilize the same process and have used the same for every coilover. Even car coilovers, race truck, utv and every coilover we have encountered.

Yes the Bilstein adjust from the bottom so you will have to take that into consideration. Also no set screw just a secondary jam nut to loosen but fundamentally the same. Same with the New king 3.0s adjust from the bottom also.

when we test and set ride height for vehicles we don't ever remove from vehicle.

Most manufacturers suggest compressing possibly to eliminate the chance for damage and errors while adjusting. and the ease of adjustment.


now some considerations should be taken when adjusting. If the threads aren't clean and have never been cleaned, if you feel any abnormal resistance. Any visible corrosion or if you never wash your shocks. You should re evaluate .


Also, consider what works for one doesn't work for all. As only 2 of us in the shop can adjust these without taking the wheels off. The techs always take the wheels off for ease of access while adjusting..

we probably adjust the height about 150 times on the 8112s when testing. We had utilized 3-4 different spring setups to figure some things out. My one tech hates me ! LOL

 

NEW RULE ON TW; @Despized must visit once a day...LOL

 

Thank you so much Despized!!!!

Awesome information!!!!

 

So which rear lift do they recommend exactly? A full Deaver Expedition leaf pack? Is that a 1.5” lift?

 

Have no idea? I can tell you ome packs for 3rd gen provide 2" of lift. Generally aal's weather a single or triple provide 1.5" - 2".

I believe deaver can/will build you a custom pack to your specs for $$$$$$$$$$$$$$$

All depends on your needs/wants? I have a single deaver aal and it's fine for my needs.

 

Yes, Bilstein was showing the AC 4-cyl 2wd as needing to reduce the preload, as factory config was outside the recommended settings.

I adjusted with the coilover installed, jacked up on frame, fully dropped, no lube. Took forever and was a PITA, 1/8 turn at a time with all my strength and leverage for every turn until 0.0” of preload. Which is 1.6” lift for the SR AC.

Worked on many coilovers for Subaru and BMW, and the adjusts never had this kind of resistance and preload on the spring to make it so hard to make turns on the threads, even with salt corrosion. These Bilsteins definitely made for a mich longer install then I imagined.

 

Watching the 8112 video on YouTube, the pack Bilstein is using seems to have 10 leaves, so I assumed the Deaver J66 based on how little the last three leaves are small and not the inverted overload type in the Expedition Deaver.

 

The link for the instructions shows a revision to the install instructions in the box. The box instructions had no steps for relocating the ABS line, greeeaaattt...

 

Maybe cuz their using tubular type uca? Im using spc's. Any thoughts shawn? @Despized

 

Im gonna ride out my aal for the year. Maybe switch to a deaver pack next year, ome was to stiff for my liking.

 

So im gonna share a little info for those interested. Bare with me im not a seasoned writer. Heres a little info on my truck for people that are on the fence about 8100's.

2017 Tacoma DCLB Offroad.
Cooper St Maxx 255/85 r16
Stealth Custom Series Ray 10's
Deaver Aal without overload.
Firestone Airbags with cradles.
Spc light racing uca's
Bilstein 8112's
Bilstein 8100's






Measurements fender to hub;
Drivers Front: 22.25"
Passenger Front; 22.50"
Driver Rear; 23.50"
Passenger Rear; 23.50"

Measurements fender to ground;
Driver Front; 37.75"
Passenger Front; 38.00"
Driver Rear; 38.50"
Passenger Rear; 38.50"

I had to crank up the drivers coilover for lean. Drivers thread measurement is 1 3/8" and the passenger is 1" from the bottom of the locking collar to the silver ring at the bottom of the threads.
I found if you remove the bumpstop it gave more room to rotate the spring perch. I also used a 2ft hollow tube as a breaker bar.



I used this to lube the threads


As far as the rears go I unscrewed the values 2-3 turns, on both compression and rebound and it softened up the rear a bit. I probably gonna soften it a bit more.

Im really pleased with the ride so far, im on e rated tires and still the ride is very nice. It looks like the drivers coilover is about topper out, so if you were gonna do a bumper and winch I would look into heavier coils.
Alignment went fine wheel is centered back to front @ 3.0 caster 0 for camber and toe.

No offroad use yet but its coming.

Just thought id share my experiences and findings, as I know how hard it to make a decision on suspension.