Forums
New posts
Search forums
What's new
New posts
New profile posts
Latest activity
Members
Registered members
Current visitors
New profile posts
Search profile posts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
RAM TRX - TRX-Forum.com
Bronco Raptor - BroncoRaptorForum.com
Forums
GEN 3 (2021+) Ford F-150 Raptor Forums
Ford Raptor Suspension Discussion and Modification
New Leveling Option - SDI Upper Mount
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Ryan C" data-source="post: 1833322" data-attributes="member: 37209"><p>This link has a good discussion on the impact of preload on droop. <a href="https://accutuneoffroad.com/articles/spring-preload-matters/" target="_blank">https://accutuneoffroad.com/articles/spring-preload-matters/</a></p><p>In short, in addition to the ride height change, adding preload will cause the spring to extend with relatively more force at the more extreme droop extensions. On my gen 2, I tried 3/4" preload (1.5" ride height) on my Fox Factory set up, and I hated it. In large part, this was because the truck had less down travel, and because of how hard it hit the full end of that down travel. This article helps explain that. I think it is also important for everyone reading this to understand that the collar or SDI spacers create 1.5" of lift (or whatever the number is), not by being 1.5" high, but through a 2:1 ratio (so 1.5" lift is actually a 0.75" spacer - or it should be). I ended up lowering my truck to have 3/8 preload on the Factory coilovers, to achieve 3/4" of added ride height, and was quite happy with that. Another thing to consider is that by moving the truck's static height, you change the point at which the various bypass valves are engaged. Too much and you're out of the engineered range, and the bypass valves aren't doing the right things at the right times. Finally, for live valve trucks, it is important to reset the computer to a new zero static ride height. Otherwise the shocks will be instructed by the computer to do things you don't want, as the computer thinks something else is happening based on the read of shock position.</p></blockquote><p></p>
[QUOTE="Ryan C, post: 1833322, member: 37209"] This link has a good discussion on the impact of preload on droop. [URL]https://accutuneoffroad.com/articles/spring-preload-matters/[/URL] In short, in addition to the ride height change, adding preload will cause the spring to extend with relatively more force at the more extreme droop extensions. On my gen 2, I tried 3/4" preload (1.5" ride height) on my Fox Factory set up, and I hated it. In large part, this was because the truck had less down travel, and because of how hard it hit the full end of that down travel. This article helps explain that. I think it is also important for everyone reading this to understand that the collar or SDI spacers create 1.5" of lift (or whatever the number is), not by being 1.5" high, but through a 2:1 ratio (so 1.5" lift is actually a 0.75" spacer - or it should be). I ended up lowering my truck to have 3/8 preload on the Factory coilovers, to achieve 3/4" of added ride height, and was quite happy with that. Another thing to consider is that by moving the truck's static height, you change the point at which the various bypass valves are engaged. Too much and you're out of the engineered range, and the bypass valves aren't doing the right things at the right times. Finally, for live valve trucks, it is important to reset the computer to a new zero static ride height. Otherwise the shocks will be instructed by the computer to do things you don't want, as the computer thinks something else is happening based on the read of shock position. [/QUOTE]
Insert quotes…
Verification
Post reply
Members online
Rednose
billw
Stingray23
RamseyF
MyRaptor23LikeMJ
The Car Stereo Company
kandewinn
997
scroper
someday
julien194b
hanj0208
wyomingraptor
Thunder Piggy
CruiserClass
Forum statistics
Threads
93,159
Posts
1,954,948
Members
56,433
Latest member
teck27
Forums
GEN 3 (2021+) Ford F-150 Raptor Forums
Ford Raptor Suspension Discussion and Modification
New Leveling Option - SDI Upper Mount
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top