UCA, and LCA??
02-16-2008, 03:37 PM
#11
1st Gear Member
Join Date: Oct 2007
Location: IL
Posts: 106
RE: UCA, and LCA??
ORIGINAL: PiggySmallz
from experience, I can tell you that the upper control arm is a real pain to get to. You need to pull the back seats up to access a bolt that holds in the mount and you also need to lower the gas tanks so you can get that bracket out. Some GT's you need a 13mm socket to remove the bolt, but there was a recall apparently so newer ones (I know my 07 had one) require a torx 50. I had a tough time with the gas tanks and could not get them low enough to pull the mount out. The more I loosened the bolts the tighter they got. I even put jacks underneath each side so they wouldn't just fall out. I tried a crobar, i tried everything to get that bracket out but I got nothing. Then i tried tightening it and jus removing the UCA from the mounting bracket, but the frame comes down just enough to block me from removing the bolt in the back. I'll give it another shot this weekend but if I had known I'd run into this many problems, I would have just gotten adjustable lower control arms instead of an adjustable upper control arm.
from experience, I can tell you that the upper control arm is a real pain to get to. You need to pull the back seats up to access a bolt that holds in the mount and you also need to lower the gas tanks so you can get that bracket out. Some GT's you need a 13mm socket to remove the bolt, but there was a recall apparently so newer ones (I know my 07 had one) require a torx 50. I had a tough time with the gas tanks and could not get them low enough to pull the mount out. The more I loosened the bolts the tighter they got. I even put jacks underneath each side so they wouldn't just fall out. I tried a crobar, i tried everything to get that bracket out but I got nothing. Then i tried tightening it and jus removing the UCA from the mounting bracket, but the frame comes down just enough to block me from removing the bolt in the back. I'll give it another shot this weekend but if I had known I'd run into this many problems, I would have just gotten adjustable lower control arms instead of an adjustable upper control arm.
To hogpwr, the second best mod I've done so far. Better control and no hop what so ever.
02-16-2008, 10:32 PM
#13
4th Gear Member
Join Date: Mar 2006
Location:
Posts: 1,138
RE: UCA, and LCA??
ORIGINAL: sweetlou69
so the UCA is a real PITA to install i take it? what about the LCAS. how long does that usually take and what good do the relocation brackets do?
so the UCA is a real PITA to install i take it? what about the LCAS. how long does that usually take and what good do the relocation brackets do?
Relocation brackets change the angle. They aren't needed if you keep the car at stock height, but if you lower you should definitely get them.
02-17-2008, 12:22 PM
#14
2nd Gear Member
Join Date: Oct 2007
Location:
Posts: 415
RE: UCA, and LCA??
nice good to know. Maybe for starters ill just do the LCAS and relocation brackets. Not crazy mechanically inclined so the UCA seems kindarough. If i go just LCAS should i go adjustables or are non adj LCAS ok?
02-17-2008, 02:17 PM
#15
5th Gear Member
Join Date: Dec 2006
Location: Redding, CA
Posts: 4,552
RE: UCA, and LCA??
ORIGINAL: sweetlou69
nice good to know. Maybe for starters ill just do the LCAS and relocation brackets. Not crazy mechanically inclined so the UCA seems kindarough. If i go just LCAS should i go adjustables or are non adj LCAS ok?
nice good to know. Maybe for starters ill just do the LCAS and relocation brackets. Not crazy mechanically inclined so the UCA seems kindarough. If i go just LCAS should i go adjustables or are non adj LCAS ok?
Even on a stock height car the relocate brackets can help 60' times. By increasing the angle of the LCA you force the energy down through the LCA into the axle and through the tire, putting more force on the tire. These are also called "anti squat" brackets.
For those who lower their car, they change the angle of the LCA to the point that angles down from the back of the car to the front. When launching, the force causes the tire to go up into the wheel well, taking pressure off of the tire which is bad when trying to get max traction. The relocate brackets change the angle to "correct" the geometry for proper launch angle for the LCAs. They are also adjustable for 3 different settings if they are welded into place instead of just bolted in.
02-17-2008, 06:59 PM
#17
6th Gear Member
Join Date: Feb 2007
Location: state of confusion
Posts: 7,635
RE: UCA, and LCA??
It's apt to end up with the relo brackets requiring the LCAs to be adjustableinstead of thinking it's the other way around. Holes don't always get drilled in the right places, the brackets themselves may not all be precisely the same shape, there is tolerance on the OE LCA bracket that you attach them to, and the installation may end up being a little 'off'.
Norm
Norm
02-17-2008, 08:44 PM
#18
5th Gear Member
Join Date: Jul 2006
Location:
Posts: 3,834
RE: UCA, and LCA??
sorry 2 hijack...however I am installing roush rears only... bought spohn poly/sphere combo adj. lca...do I still need or should I get relocation bracket...roush rears only lower about an inch...leaving the front alone [stock] just want to even out ride height and help w wheel hop / traction..advice...
02-18-2008, 10:00 AM
#19
6th Gear Member
Join Date: Feb 2007
Location: state of confusion
Posts: 7,635
RE: UCA, and LCA??
First, understand that "lowering estimates" are just that - estimates. It's at least possible that you may find the nose ends up a little high.
Anyway, the poly & spherical ended LCAs will reduce the wheel hop, but may not completely eliminate it. Also doing the UCA modwith stiffer bushings or spherical(s) there will help in at least some of the more stubborn cases.
You're going to have traction issues on the street anyway, but relo brackets can gain you quite a bit of help. Just dropping the LCA axle side pivot 1" can double the anti-squat percentage in a 3-link/PHB suspension (from 40-ish% to 80 or so), though the amount you get with S197-specific link lengths, pivot elevations,and final LCA angles might vary a bit from the model I used to get those particular numbers. I'm not sure what will happen to your axle roll steer, other than to say that the car will either understeer less than OE or oversteer slightly.
Norm
Anyway, the poly & spherical ended LCAs will reduce the wheel hop, but may not completely eliminate it. Also doing the UCA modwith stiffer bushings or spherical(s) there will help in at least some of the more stubborn cases.
You're going to have traction issues on the street anyway, but relo brackets can gain you quite a bit of help. Just dropping the LCA axle side pivot 1" can double the anti-squat percentage in a 3-link/PHB suspension (from 40-ish% to 80 or so), though the amount you get with S197-specific link lengths, pivot elevations,and final LCA angles might vary a bit from the model I used to get those particular numbers. I'm not sure what will happen to your axle roll steer, other than to say that the car will either understeer less than OE or oversteer slightly.
Norm
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