User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 06-13-2021, 04:27 PM #16
BlueRidge77's Avatar
BlueRidge77 BlueRidge77 is offline
Member
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
BlueRidge77 BlueRidge77 is offline
Member
BlueRidge77's Avatar
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
Quote:
Originally Posted by mo_mo View Post
Thanks for the reference. Jetboy always knows his stuff. Now, I only know enough about this system to be dangerous… If the system is open all the time, then what purpose do the valves on the controller serve when performing lift installs? Or is that essentially just combining a “recal” of the system at the same time of lift install?

Here’s why I’m asking. I’m installing my Dobinsons lift on Thursday (finally…) and I want it to be as loose as possible to see if I can get it in without actually disconnecting the sway bars. Many seem to accomplish this… I don’t want to open the valve bolts because my driveway is not level and I don’t want to open them there. Thanks.
__________________
2016 MGM TEP w/KDSS - P285/70-17 Toyo Open Country AT3 on Stock Trail wheels, no spacers - Dobinsons IMS Lift 2.75”/2” (302/505 Springs) - Freedom Off-road UCAs - TRDP Grill - Redarc Trailer Brake Controller - SumoSprings Helper Spring Bumpstops (black)
BlueRidge77 is offline   Reply With QuoteReply With Quote
Old 06-13-2021, 04:40 PM #17
mo_mo mo_mo is online now
Member
 
Join Date: Jul 2014
Location: Earth
Posts: 510
mo_mo will become famous soon enough mo_mo will become famous soon enough
mo_mo mo_mo is online now
Member
 
Join Date: Jul 2014
Location: Earth
Posts: 510
mo_mo will become famous soon enough mo_mo will become famous soon enough
Quote:
Originally Posted by BlueRidge77 View Post
Thanks for the reference. Jetboy always knows his stuff. Now, I only know enough about this system to be dangerous… If the system is open all the time, then what purpose do the valves on the controller serve when performing lift installs? Or is that essentially just combining a “recal” of the system at the same time of lift install?

Here’s why I’m asking. I’m installing my Dobinsons lift on Thursday (finally…) and I want it to be as loose as possible to see if I can get it in without actually disconnecting the sway bars. Many seem to accomplish this… I don’t want to open the valve bolts because my driveway is not level and I don’t want to open them there. Thanks.
I wouldn't be too worried about opening the valves in the driveway, so long as you close them before you drive off. Then go find a level place to open the valves back up and level it out as best as you can.

While the system is 'open/relaxed' at low speeds etc, the front and rear piston are still hydraulically connected. If you were to lift the front driver and rear passenger at the same time, then the system would be balanced, but if you lift both driver side tires, the system will develop anti-roll stiffness regardless of the valve positioning. So there are kind of multiple combinations of electronics and natural loads that allow KDSS to operate.

There have been many different ways of dealing with KDSS lift installs over the years.

This guy has a walk through install of his KDSS 4R and I don't think he uses opens the valves and it should be the same with your Dobinson setup.

Toyota 4Runner 2020 with KDSS Front Lift with Ironman4x4 suspension - YouTube
Toyota 4runner with KDSS Rear lift Explain - YouTube
__________________
2014 T4R TE Nav KDSS Super White
Demello Hybrid Bolt On Sliders | Toyo Open Country AT III LT285/70R17 C | Ironman 4x4 Foam Cell Pro Stage 2 | Durobumps | Rago Molle Panels | Leather steering wheel cover | RCI Full Skids (Aluminum) | Drawer less drawer system and sleeping platform. | TRD CAI | RAV4 Sideview Mirrors: 87961-42D20 & 87931-42D50 | Blackvue DR650S-2CH | Cobra 75 WX ST with 4’ Firestik + Magnet Roof Top Mount | MXT275 Midland GMRS radio | 3M Crystalline: Front CR70, A-B CR50, B-Aft CR40 | RRW Leather Seat Covers | 3DMax Floor Mats and Rear Husky Liner | former LT265/70R17 C Duratracs
mo_mo is online now   Reply With QuoteReply With Quote
Old 06-13-2021, 06:02 PM #18
f-it f-it is offline
Member
 
Join Date: Dec 2013
Location: Sac, CA
Posts: 33
f-it is on a distinguished road
f-it f-it is offline
Member
 
Join Date: Dec 2013
Location: Sac, CA
Posts: 33
f-it is on a distinguished road
Quote:
Originally Posted by BlueRidge77 View Post
Thanks for the reference. Jetboy always knows his stuff. Now, I only know enough about this system to be dangerous… If the system is open all the time, then what purpose do the valves on the controller serve when performing lift installs? Or is that essentially just combining a “recal” of the system at the same time of lift install?

Here’s why I’m asking. I’m installing my Dobinsons lift on Thursday (finally…) and I want it to be as loose as possible to see if I can get it in without actually disconnecting the sway bars. Many seem to accomplish this… I don’t want to open the valve bolts because my driveway is not level and I don’t want to open them there. Thanks.
I installed my Eibach 2.0 coilovers without opening the valves. I just used a Jack to compress it while I worked on the opposite side and vice versa. It really wasn’t that hard to do imo. Just have multiple jacks that go high enough and you’ll be fine.
__________________
2000 4runner Sr5 with Tundra 199 brakes taco wip- Sold
2014 4runner TE premium-EIBACH PRO-TRUCK-COILOVER 2.0 and REAR LOAD-LEVELING-SYSTEM. Front at about 1.5 rear at 2 inches.
f-it is offline   Reply With QuoteReply With Quote
Old 06-13-2021, 07:18 PM #19
BlueRidge77's Avatar
BlueRidge77 BlueRidge77 is offline
Member
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
BlueRidge77 BlueRidge77 is offline
Member
BlueRidge77's Avatar
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
Quote:
Originally Posted by mo_mo View Post
While the system is 'open/relaxed' at low speeds etc, the front and rear piston are still hydraulically connected. If you were to lift the front driver and rear passenger at the same time, then the system would be balanced, but if you lift both driver side tires, the system will develop anti-roll stiffness regardless of the valve positioning. So there are kind of multiple combinations of electronics and natural loads that allow KDSS to operate.
That makes sense and kind of what I was thinking. Thanks.

Quote:
Originally Posted by f-it View Post
I installed my Eibach 2.0 coilovers without opening the valves. I just used a Jack to compress it while I worked on the opposite side and vice versa. It really wasn’t that hard to do imo. Just have multiple jacks that go high enough and you’ll be fine.
Pretty much my plan. I’ve got a couple of jacks, lots of jack stands and some help. Thanks!
__________________
2016 MGM TEP w/KDSS - P285/70-17 Toyo Open Country AT3 on Stock Trail wheels, no spacers - Dobinsons IMS Lift 2.75”/2” (302/505 Springs) - Freedom Off-road UCAs - TRDP Grill - Redarc Trailer Brake Controller - SumoSprings Helper Spring Bumpstops (black)
BlueRidge77 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 06:40 AM #20
Blue109's Avatar
Blue109 Blue109 is offline
Member
 
Join Date: Feb 2019
Location: TUCSON
Posts: 160
Blue109 has a spectacular aura about Blue109 has a spectacular aura about Blue109 has a spectacular aura about
Blue109 Blue109 is offline
Member
Blue109's Avatar
 
Join Date: Feb 2019
Location: TUCSON
Posts: 160
Blue109 has a spectacular aura about Blue109 has a spectacular aura about Blue109 has a spectacular aura about
I ratchet-strapped the piston in place and unbolted the end links while the truck was on the ground, and then just did the lift like any other truck. After putting it back together, the passenger side sway link bolted up easy. I used a second ratchet strap on the driver's side to help pull it into place. It was cake. Had no issues at all.

I did NOT want to mess with the KDSS valves. Have maybe 1/4" difference hub to fender from left to right on the tape measure, but it's not noticable at all. Truck looks level to me.
__________________
If you're gonna scream, scream with me. Moments like this never last.

Raptor lights. eBay PRO grill. Pedal Commander. Plasti dip valence. Top tier overlanding stickers and headliner patches.

Last edited by Blue109; 06-16-2021 at 06:42 AM.
Blue109 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 10:44 AM #21
jlficken jlficken is offline
Member
 
Join Date: May 2017
Location: Nebraska
Posts: 37
jlficken is on a distinguished road
jlficken jlficken is offline
Member
 
Join Date: May 2017
Location: Nebraska
Posts: 37
jlficken is on a distinguished road
Quote:
Originally Posted by BlueRidge77 View Post
Thanks for the reference. Jetboy always knows his stuff. Now, I only know enough about this system to be dangerous… If the system is open all the time, then what purpose do the valves on the controller serve when performing lift installs? Or is that essentially just combining a “recal” of the system at the same time of lift install?

Here’s why I’m asking. I’m installing my Dobinsons lift on Thursday (finally…) and I want it to be as loose as possible to see if I can get it in without actually disconnecting the sway bars. Many seem to accomplish this… I don’t want to open the valve bolts because my driveway is not level and I don’t want to open them there. Thanks.

This is a good video on dealing with KDSS while upgrading the suspension.
GX460 Icon Stage 2 lift and 285s - YouTube

Last edited by jlficken; 06-16-2021 at 10:54 AM.
jlficken is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 11:21 AM #22
Ripper238's Avatar
Ripper238 Ripper238 is offline
Member
 
Join Date: Jun 2019
Location: CT/NY
Posts: 475
Ripper238 has a spectacular aura about Ripper238 has a spectacular aura about
Ripper238 Ripper238 is offline
Member
Ripper238's Avatar
 
Join Date: Jun 2019
Location: CT/NY
Posts: 475
Ripper238 has a spectacular aura about Ripper238 has a spectacular aura about
Quote:
Originally Posted by BlueRidge77 View Post
This may be the best place to ask this… I’ve read conflicting things on here before. When does the system go “limp”? I think it’s below 12mph, but I’ve heard some say it must be in 4lo but others say no. I’ve never seen conformation. Right now, sitting in my drive way, is it limp? Allowing the pistons to easily move up and down?
The video implies it goes "limp" when the force of movement opposes the other, when the force of movement is equal its therefore stiff. Its not speed specific, its passive and fluid.

So sitting in your driveway there is no force of movement opposing the other so it would be stiff.

Last edited by Ripper238; 06-16-2021 at 11:39 AM.
Ripper238 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 12:08 PM #23
BlueRidge77's Avatar
BlueRidge77 BlueRidge77 is offline
Member
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
BlueRidge77 BlueRidge77 is offline
Member
BlueRidge77's Avatar
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
Quote:
Originally Posted by Ripper238 View Post
The video implies it goes "limp" when the force of movement opposes the other, when the force of movement is equal its therefore stiff. Its not speed specific, its passive and fluid.

So sitting in your driveway there is no force of movement opposing the other so it would be stiff.
I don’t know about that. Lots of folks who did not open the valves talk about having to ratchet the piston up when sitting (drooping on jack stands I should say…). I will be exerting my own force on the opposite side to get it to drop more. I guess I’ll find out tomorrow… Thanks!
__________________
2016 MGM TEP w/KDSS - P285/70-17 Toyo Open Country AT3 on Stock Trail wheels, no spacers - Dobinsons IMS Lift 2.75”/2” (302/505 Springs) - Freedom Off-road UCAs - TRDP Grill - Redarc Trailer Brake Controller - SumoSprings Helper Spring Bumpstops (black)
BlueRidge77 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 02:08 PM #24
Ripper238's Avatar
Ripper238 Ripper238 is offline
Member
 
Join Date: Jun 2019
Location: CT/NY
Posts: 475
Ripper238 has a spectacular aura about Ripper238 has a spectacular aura about
Ripper238 Ripper238 is offline
Member
Ripper238's Avatar
 
Join Date: Jun 2019
Location: CT/NY
Posts: 475
Ripper238 has a spectacular aura about Ripper238 has a spectacular aura about
Quote:
Originally Posted by BlueRidge77 View Post
I don’t know about that. Lots of folks who did not open the valves talk about having to ratchet the piston up when sitting (drooping on jack stands I should say…). I will be exerting my own force on the opposite side to get it to drop more. I guess I’ll find out tomorrow… Thanks!
When you ratchet the piston up that is causing a force of movement that opposes the other so that would make it "limp". So that makes sense that people are doing that.

Good luck, you will definitely know for sure tomorrow.
Ripper238 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 07:40 PM #25
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
Quote:
Originally Posted by BlueRidge77 View Post
Thanks for the reference. Jetboy always knows his stuff. Now, I only know enough about this system to be dangerous… If the system is open all the time, then what purpose do the valves on the controller serve when performing lift installs? Or is that essentially just combining a “recal” of the system at the same time of lift install?

Here’s why I’m asking. I’m installing my Dobinsons lift on Thursday (finally…) and I want it to be as loose as possible to see if I can get it in without actually disconnecting the sway bars. Many seem to accomplish this… I don’t want to open the valve bolts because my driveway is not level and I don’t want to open them there. Thanks.
first time i installed new shocks i opened the valves. Now i dont even bother. i dont notice a difference to be honest. Floor jack and alignment pin for the front. you can roll the floor jack while your jacking the piston up to line it up better, than use the pin to get it closer. its still a bit of a pain. The back end i found its easier to disconnect the clamp on the actual sway bar instead of disconnecting from the axle.

no lean here. 2.5" with kings up front. 1.5" with wheelers springs in the back.
__________________
2016 TE : Grocery Getter, 285/70R17 Cooper at3 XLT, Prinsu Rack, King Coilovers, DuroBumps, Wheelers T13 coils, King shocks, King hydro bumps, Total Chaos mounts, DirtKing Fabrication UCA, VIVID RACING Tune, URD Y pipe

2017 F250 6.7: Carli, Fox, Raceline, BajaDesigns, DIY Retrofit headlights
honda250xtitan is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 08:41 PM #26
BlueRidge77's Avatar
BlueRidge77 BlueRidge77 is offline
Member
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
BlueRidge77 BlueRidge77 is offline
Member
BlueRidge77's Avatar
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
Quote:
Originally Posted by honda250xtitan View Post
first time i installed new shocks i opened the valves. Now i dont even bother. i dont notice a difference to be honest. Floor jack and alignment pin for the front. you can roll the floor jack while your jacking the piston up to line it up better, than use the pin to get it closer. its still a bit of a pain. The back end i found its easier to disconnect the clamp on the actual sway bar instead of disconnecting from the axle.

no lean here. 2.5" with kings up front. 1.5" with wheelers springs in the back.
Thanks!! Jetboy recommended using spring compressors on the rear and you don’t have to disconnect anything! I’ll see if I can do that… I’ll report back.

I’ve got all my parts, tools, help, beer… I’m ready to rock and roll! Nice long weekend!! Thanks Juneteenth and the state of Virginia. (I work for VDOT…)
__________________
2016 MGM TEP w/KDSS - P285/70-17 Toyo Open Country AT3 on Stock Trail wheels, no spacers - Dobinsons IMS Lift 2.75”/2” (302/505 Springs) - Freedom Off-road UCAs - TRDP Grill - Redarc Trailer Brake Controller - SumoSprings Helper Spring Bumpstops (black)
BlueRidge77 is offline   Reply With QuoteReply With Quote
Old 06-16-2021, 10:05 PM #27
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
Quote:
Originally Posted by BlueRidge77 View Post
Thanks!! Jetboy recommended using spring compressors on the rear and you don’t have to disconnect anything! I’ll see if I can do that… I’ll report back.

I’ve got all my parts, tools, help, beer… I’m ready to rock and roll! Nice long weekend!! Thanks Juneteenth and the state of Virginia. (I work for VDOT…)
actually those worked well for me swapping from t13 to the TOytec HD 2" springs. The toytecs required spring compressors. The wheelers fell out after taking everything apart lol
__________________
2016 TE : Grocery Getter, 285/70R17 Cooper at3 XLT, Prinsu Rack, King Coilovers, DuroBumps, Wheelers T13 coils, King shocks, King hydro bumps, Total Chaos mounts, DirtKing Fabrication UCA, VIVID RACING Tune, URD Y pipe

2017 F250 6.7: Carli, Fox, Raceline, BajaDesigns, DIY Retrofit headlights
honda250xtitan is offline   Reply With QuoteReply With Quote
Old 06-17-2021, 09:33 AM #28
BlueRidge77's Avatar
BlueRidge77 BlueRidge77 is offline
Member
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
BlueRidge77 BlueRidge77 is offline
Member
BlueRidge77's Avatar
 
Join Date: Jan 2017
Location: Staunton,VA
Posts: 166
Real Name: Michael
BlueRidge77 will become famous soon enough
Quote:
Originally Posted by honda250xtitan View Post
first time i installed new shocks i opened the valves. Now i dont even bother. i dont notice a difference to be honest. Floor jack and alignment pin for the front. you can roll the floor jack while your jacking the piston up to line it up better, than use the pin to get it closer. its still a bit of a pain. The back end i found its easier to disconnect the clamp on the actual sway bar instead of disconnecting from the axle.

no lean here. 2.5" with kings up front. 1.5" with wheelers springs in the back.
I just took my pre lift measurements. No lean on the back and only 1/8” low on passenger side of the front. (1/2 tank of gas) I don’t know if I should put the trim packers in or not. I know the more you lift the more it can make it lean… the front I can adjust with the coilovers, but not the back… You had no lean before or after?
__________________
2016 MGM TEP w/KDSS - P285/70-17 Toyo Open Country AT3 on Stock Trail wheels, no spacers - Dobinsons IMS Lift 2.75”/2” (302/505 Springs) - Freedom Off-road UCAs - TRDP Grill - Redarc Trailer Brake Controller - SumoSprings Helper Spring Bumpstops (black)
BlueRidge77 is offline   Reply With QuoteReply With Quote
Old 06-17-2021, 01:22 PM #29
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
honda250xtitan honda250xtitan is offline
Senior Member
 
Join Date: Feb 2016
Location: phoenix
Posts: 1,401
honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all honda250xtitan is a name known to all
correct. I believe once you hit the 3" front and 2-2.5" lift rear you run into lean issues. YMMV.....
__________________
2016 TE : Grocery Getter, 285/70R17 Cooper at3 XLT, Prinsu Rack, King Coilovers, DuroBumps, Wheelers T13 coils, King shocks, King hydro bumps, Total Chaos mounts, DirtKing Fabrication UCA, VIVID RACING Tune, URD Y pipe

2017 F250 6.7: Carli, Fox, Raceline, BajaDesigns, DIY Retrofit headlights
honda250xtitan is offline   Reply With QuoteReply With Quote
Reply

Tags
detailed , happy , kdss , makes , video

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Stock Suspension w/KDSS Walk Around Video Matt831 5th gen T4Rs 0 01-21-2021 04:35 PM
KDSS Lift video recommendation required Catskill4RNR 5th gen T4Rs 10 10-27-2019 11:44 AM
A really good explaination of KDSS - Video Canon_Bob 5th gen T4Rs 22 10-31-2014 01:58 PM
Video install of lift kit with UCA on 13 KDSS or 'close enough' vehicle joeee128 5th gen T4Rs 3 11-26-2013 02:23 PM
Explaining tires and wheels to the wife. Falls Engines / Suspension / Wheels / Tires / Audio / Accessories 6 07-08-2007 11:51 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 12:03 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020