M4wd&Fabrications

Projects place => Tech => Topic started by: luvmyxj on October 19, 2014, 12:47:48 PM

Title: coilover tech
Post by: luvmyxj on October 19, 2014, 12:47:48 PM
so i found a spring rate calulator and goofin with #'s i beleive are close to mine
http://www.crawlpedia.com/spring_rate_calculator.htm

spring rate came out to be  2096 lb/in
it doesnt explain what that transfers(or i cant figure it out) to what primary spring you would use, any advice?
Title: Re: coilover tech
Post by: mr.mindless on October 19, 2014, 01:20:46 PM
One ton per inch doesn't sound too likely. Misplaced decimal? 210 doesn't seem terribly unlikely


Tapatalking in traffic
Title: Re: coilover tech
Post by: luvmyxj on October 19, 2014, 01:39:11 PM
oic what i did, its not the deg the shock sits at ,but the deg distance from 90deg. im guessing for the rear possibly 500lbs a corner, gives me a new rate of 80lb/in. so my dual rate would be 80/125?
Title: Re: coilover tech
Post by: M4wdFab on October 21, 2014, 04:01:35 PM
negative sir
Title: Re: coilover tech
Post by: luvmyxj on October 21, 2014, 04:04:13 PM
125/80?
Title: coilover tech
Post by: mr.mindless on October 22, 2014, 07:40:19 AM
I'd check the profender spring calc but that quality app just sits here

(http://tapatalk.imageshack.com/v2/14/10/22/72eedbe945c5fbb012259a89fd3bf9eb.jpg)

Total rate is A/2+B/2 isn't it?


Tapatalking in traffic
Title: Re: coilover tech
Post by: Ryan on October 22, 2014, 08:08:36 AM
http://vipercoils.com/calculator.html
Title: Re: coilover tech
Post by: luvmyxj on October 22, 2014, 10:23:05 AM
for me it comes up at a 80lb primary, but no one makes an 80, so i went up to a 100lb. it says to use a lower that is 20-50 stiffer so i got a 150lb, i coulda went up to 175. so in the end i ordered a 14" 100lb upper, 16" 150 lower
Title: Re: coilover tech
Post by: M4wdFab on October 22, 2014, 11:09:51 AM
1/R1 + 1/R2 = 1/Rtotal

Rtotal = 1/(1/R1 + 1/R2)

Rt = 1/(1/100 + 1/150) = 1/ (.01 + .006666) = 60lb/in

you will be soft with too much PL  (if you were shooting for 80 total rate)

80 on a 14" shaft at 50/50, with 2" preload would be 780lbs corner at ride.  F=R *X = 80(7+2) = 780lbs
60 on a 14" shaft at 50/50, with 2" preload would be 540lbs corner at ride.  F=R *X = 60(7+2) = 540lbs

Title: Re: coilover tech
Post by: mr.mindless on October 22, 2014, 12:17:02 PM
inverses, fuck me! why can I never remember that??
Title: Re: coilover tech
Post by: M4wdFab on October 22, 2014, 12:27:46 PM
its ok, at least you can spell better than me.   ::)
Title: Re: coilover tech
Post by: Ryan on October 22, 2014, 12:35:06 PM
I have no idea what that nonsense said.
Title: Re: coilover tech
Post by: mr.mindless on October 22, 2014, 12:44:38 PM
hahaha
Title: Re: coilover tech
Post by: M4wdFab on October 22, 2014, 02:41:28 PM
addition and division sometimes can be hard. 
Title: Re: coilover tech
Post by: Nick on October 22, 2014, 06:56:28 PM
its ok, at least you can spell better than me.   ::)


This made me chuccle a little  :)
Title: Re: coilover tech
Post by: M4wdFab on December 16, 2014, 09:03:57 AM
will you look at this

http://www.jegs.com/p/QA1/QA1-Quad-Adjust-Coil-Over-Shocks/3125605/10002/-1&?utm_source=email&utm_medium=email&utm_campaign=20141211email 
Title: Re: coilover tech
Post by: M4wdFab on July 01, 2016, 08:29:28 AM
coil over air shock?

http://www.polyperformance.com/Fox-2-0-Coilover-Air-Shock
Title: Re: coilover tech
Post by: M4wdFab on October 03, 2016, 04:24:45 PM
first short read that i have ever come across that actually makes sense on the first or second read. 

http://www.crawlpedia.com/shock_tuning.htm 
Title: Re: coilover tech
Post by: M4wdFab on October 04, 2016, 05:48:42 PM
fox 2.0 shim # explanations

http://www.ridefox.com/dl/offroad/FOX_OR_20_VALVING.pdf
Title: Re: coilover tech
Post by: M4wdFab on October 04, 2016, 05:51:10 PM
fox site on DSC's says 25% change.  Wayne said they were more like 5%  hmm


Dual Speed Compression

The Dual Speed Compression (DSC) adjuster provides added control and comfort tuning for on-road use while also offering more aggressive damping for use off-road. The adjuster allows for precise suspension tuning with the simple twist of two clearly defined knobs: No tools and no mess, just a way to easily fine-tune your suspension to best suit your needs in any conditions. The DSC increases both low and high-speed compression levels up to 25%, allowing you to maximize small bump compliance and traction while still having the extra damping required for big hits.
Title: Re: coilover tech
Post by: M4wdFab on October 05, 2016, 11:58:37 AM
def need to order or make one of thses:

http://www.pacificcustoms.com/mm5/merchant.mvc?Screen=PROD&Store_Code=PC&Product_Code=fox39800094a&Category_Code=fox-rebuild-kits   

the only pain in reassembly of our bro shocks
Title: Re: coilover tech
Post by: mr.mindless on October 05, 2016, 12:06:03 PM
Can't that seal just chill on the shaft 99% of the time? pretty much only needing to be installed when changing the shaft or working on lower eye R&R?
Title: Re: coilover tech
Post by: M4wdFab on October 05, 2016, 01:05:56 PM
actually ya your probably right, i had to change the shaft while i was in there