Sage RCA's Installed...Pictures
04-28-09, 11:31 AM
#32
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You had to know that the fronts were going to add neg camber since you're running spring/shock/RCA combo, right?
Well...Im in the same boat as you...except im running SAGE coilovers. I spoke with my alignment guy on Saturday...he says slight neg camber (a bit out of spec) up front is OK since the front wheels are always turning so the tire surface is always changing. Major neg camber is bad. Toe in/out is also bad.
The rear wheels dont turn ...so neg camber/toe is more of a problem here since it'll wear down the inside treads...so he believes its more crucial to get a camber kit for the rears so its near or within specs.
Make sense?
Pete
Well...Im in the same boat as you...except im running SAGE coilovers. I spoke with my alignment guy on Saturday...he says slight neg camber (a bit out of spec) up front is OK since the front wheels are always turning so the tire surface is always changing. Major neg camber is bad. Toe in/out is also bad.
The rear wheels dont turn ...so neg camber/toe is more of a problem here since it'll wear down the inside treads...so he believes its more crucial to get a camber kit for the rears so its near or within specs.
Make sense?
Pete
Last edited by PHML; 04-28-09 at 11:42 AM.
04-30-09, 10:12 AM
#33
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You had to know that the fronts were going to add neg camber since you're running spring/shock/RCA combo, right?
Well...Im in the same boat as you...except im running SAGE coilovers. I spoke with my alignment guy on Saturday...he says slight neg camber (a bit out of spec) up front is OK since the front wheels are always turning so the tire surface is always changing. Major neg camber is bad. Toe in/out is also bad.
The rear wheels dont turn ...so neg camber/toe is more of a problem here since it'll wear down the inside treads...so he believes its more crucial to get a camber kit for the rears so its near or within specs.
Make sense?
Pete
Well...Im in the same boat as you...except im running SAGE coilovers. I spoke with my alignment guy on Saturday...he says slight neg camber (a bit out of spec) up front is OK since the front wheels are always turning so the tire surface is always changing. Major neg camber is bad. Toe in/out is also bad.
The rear wheels dont turn ...so neg camber/toe is more of a problem here since it'll wear down the inside treads...so he believes its more crucial to get a camber kit for the rears so its near or within specs.
Make sense?
Pete
05-09-09, 02:25 PM
#34
I finally got my F&R Sage RCA's installed. According to my tech, the toe adjustment in the rear is maxed out and cannot be adjusted to get within spec. It is damn near impossible to get the rear toe within spec on a lowered gs with the stock arms..The solution to this problem is to install aftermarket adjustable rear toe Control arms. Topspeed & Megan Racing are the only two companies that make these arms for the GS. I ordered the Topspeed set for $150.00. Once installed, I will have to get a second alignment to get the rear toe within spec. I do not want to see "red" on my alignment printout.. "Green" all the way!
Here is a pic of the Topspeed arms that I ordered..
Here is info on adj toe arms.
As far as my driving impressions with this kit, bumpsteer is gone! 
This car now drives like it is one rather than two halves. Is this a Lexus GS a got back?
I now have 3 BMW's lol.. The ride has also improved do to more suspension travel & rebound. This kit allowed me to raise the coilovers yet have a lower ride height than before. The front is nearly tucked & the rear is tucked. RCA's are a must for GS's on coilovers.
Here is a pic of the Topspeed arms that I ordered..
Here is info on adj toe arms.
It is within this understanding that Megan Racing has unveiled our line of reinforced suspension arms that offer the strength and adjustment that any competition vehicle will ever need. Constructed of high-strength steel alloys that offer durability, strength and yet remain light-weight, these control arms have been track tested for months in road race, autocross and drift events to assure quality and performance.
These Toe-Control arms allow for fine-tuned adjustments to the rear toe in/out setting of the vehicle. Toe is crucial for the straight line stability and behavior of a car and is said to have more of an effect than the front toe.
- Constructed of Steel Alloy for Lightweight yet Durable performance.
- Easy to access turnbuckle-style adjustment.
- Can be adjusted without removing from the vehicle.
- Eliminates Premature Tire Wear while improving handling and stability.
- Pillow Ball bushing
These Toe-Control arms allow for fine-tuned adjustments to the rear toe in/out setting of the vehicle. Toe is crucial for the straight line stability and behavior of a car and is said to have more of an effect than the front toe.
- Constructed of Steel Alloy for Lightweight yet Durable performance.
- Easy to access turnbuckle-style adjustment.
- Can be adjusted without removing from the vehicle.
- Eliminates Premature Tire Wear while improving handling and stability.
- Pillow Ball bushing
This car now drives like it is one rather than two halves. Is this a Lexus GS a got back?
I now have 3 BMW's lol.. The ride has also improved do to more suspension travel & rebound. This kit allowed me to raise the coilovers yet have a lower ride height than before. The front is nearly tucked & the rear is tucked. RCA's are a must for GS's on coilovers.
Last edited by DASHOCKER; 05-09-09 at 02:29 PM.
05-14-09, 02:19 PM
#40
I finally got my F&R Sage RCA's installed. According to my tech, the toe adjustment in the rear is maxed out and cannot be adjusted to get within spec. It is damn near impossible to get the rear toe within spec on a lowered gs with the stock arms..The solution to this problem is to install aftermarket adjustable rear toe Control arms. Topspeed & Megan Racing are the only two companies that make these arms for the GS. I ordered the Topspeed set for $150.00. Once installed, I will have to get a second alignment to get the rear toe within spec. I do not want to see "red" on my alignment printout.. "Green" all the way!
Here is a pic of the Topspeed arms that I ordered..
Here is info on adj toe arms.
As far as my driving impressions with this kit, bumpsteer is gone!
This car now drives like it is one rather than two halves. Is this a Lexus GS a got back? I now have 3 BMW's lol.. The ride has also improved do to more suspension travel & rebound. This kit allowed me to raise the coilovers yet have a lower ride height than before. The front is nearly tucked & the rear is tucked. RCA's are a must for GS's on coilovers.
Here is a pic of the Topspeed arms that I ordered..
Here is info on adj toe arms.
As far as my driving impressions with this kit, bumpsteer is gone!
This car now drives like it is one rather than two halves. Is this a Lexus GS a got back?
I now have 3 BMW's lol.. The ride has also improved do to more suspension travel & rebound. This kit allowed me to raise the coilovers yet have a lower ride height than before. The front is nearly tucked & the rear is tucked. RCA's are a must for GS's on coilovers.Yes BUMPSTEER is definitely improved with the rear RCA's. Can you give out your rear alignment specs and what setting did you use on the rear adjustment?
I believe I am at OEM spec Toe & Camber, without having to add these control arms. I will talk to my alignment guy who "Specializes" in aligning aftermarket set ups. He's done a BUNCH of CL member cars with Exact adjustable rear RCA's, so I'll see if anyone had problems with getting to factory toe.
I'll take a picture and post my rear alignment specs, but I'll need to dig for the sheet this weekend. Too busy at work right now.
05-15-09, 03:37 AM
#41
Yes BUMPSTEER is definitely improved with the rear RCA's. Can you give out your rear alignment specs and what setting did you use on the rear adjustment?
I believe I am at OEM spec Toe & Camber, without having to add these control arms. I will talk to my alignment guy who "Specializes" in aligning aftermarket set ups. He's done a BUNCH of CL member cars with Exact adjustable rear RCA's, so I'll see if anyone had problems with getting to factory toe.
I'll take a picture and post my rear alignment specs, but I'll need to dig for the sheet this weekend. Too busy at work right now.
I believe I am at OEM spec Toe & Camber, without having to add these control arms. I will talk to my alignment guy who "Specializes" in aligning aftermarket set ups. He's done a BUNCH of CL member cars with Exact adjustable rear RCA's, so I'll see if anyone had problems with getting to factory toe.
I'll take a picture and post my rear alignment specs, but I'll need to dig for the sheet this weekend. Too busy at work right now.
