Homebuilt coilover system
03-07-2011, 05:14 PM
#83
5th Gear Member
Thread Starter
Join Date: Jun 2005
Location: So. California
Posts: 2,258
whatup scott!!
part number for ub is #22-0141
for the screw in I used an afco low friction part #20034
For the chromoly hex bar I got it off of amazon of all places. I also used two hardened washers in between the hex bar and shock towers.
use stainless 304 like this, plenty strong
http://www.amazon.com/Stainless-T-30...539563&sr=8-24
let me know how it goes
part number for ub is #22-0141
for the screw in I used an afco low friction part #20034
For the chromoly hex bar I got it off of amazon of all places. I also used two hardened washers in between the hex bar and shock towers.
use stainless 304 like this, plenty strong
http://www.amazon.com/Stainless-T-30...539563&sr=8-24
let me know how it goes
03-08-2011, 03:39 PM
#86
Join Date: Nov 2005
Posts: 48
You can also get it on Ebay: http://cgi.ebay.com/06J-304-STAINLES...item20b1b40bf3
If this were an UCA with a spring perch, I'd be hesitant on using stainless but with the shock load relocated to the LCA I would think stainless should be fine to use.
If this were an UCA with a spring perch, I'd be hesitant on using stainless but with the shock load relocated to the LCA I would think stainless should be fine to use.
03-08-2011, 05:46 PM
#87
5th Gear Member
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Join Date: Jun 2005
Location: So. California
Posts: 2,258
Good ebay find!
even if we were putting a load on the UCA the 304 would be fine. Have you seen what the stock piece looks like? If you had some sort of failure it would be in the spindle before a 1'' thick piece of 304.
even if we were putting a load on the UCA the 304 would be fine. Have you seen what the stock piece looks like? If you had some sort of failure it would be in the spindle before a 1'' thick piece of 304.
03-14-2011, 03:19 PM
#89
5th Gear Member
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Join Date: Jun 2005
Location: So. California
Posts: 2,258
true true...I wonder how much load is on the uca now with no weight on it. Its only job is to locate the spindle. Probably still a good amount of force when you hit a pothole. Ive been driving my car quite a bit and driving it hard too. Everything has held up great. My rod links seem to being leaking thier oil in the strut rod? cant be good right.
03-14-2011, 03:57 PM
#90
6th Gear Member
Join Date: Feb 2007
Location: state of confusion
Posts: 7,635
There's more to locating the "spindle" than just holding it from flopping over with the car parked. The loads from cornering and braking can be fairly large too.
Hard cornering tries to pull the outboard UCA outward (the knuckle is trying to pivot as seen in front view about the LCA/LBJ).
Hard braking is trying to pivot the UCA about the front edge of the cross shaft and mainly tries to pull the rear UCA bolt out.
Sometimes you get some of both, sometimes either or both + impact.
Privately (and elsewhere) I've been down this road before. The non-impact loads can easily amount to several hundred lbs or more, and you absolutely must design for a low stress due to the repetitive nature of the loading on metal fatigue.
Norm
Hard cornering tries to pull the outboard UCA outward (the knuckle is trying to pivot as seen in front view about the LCA/LBJ).
Hard braking is trying to pivot the UCA about the front edge of the cross shaft and mainly tries to pull the rear UCA bolt out.
Sometimes you get some of both, sometimes either or both + impact.
Privately (and elsewhere) I've been down this road before. The non-impact loads can easily amount to several hundred lbs or more, and you absolutely must design for a low stress due to the repetitive nature of the loading on metal fatigue.
Norm