1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Are Roll Center Adjusters (RCAs) available?

Thread Tools
 
Search this Thread
 
Old May 28, 2004 | 01:30 AM
  #1  
O 16581 72452 5's Avatar
Thread Starter
The infamous number guy!
Tenured Member 10 Years
 
Joined: Dec 2002
Posts: 1,953
Likes: 0
From: Terre Haute, IN.
Are Roll Center Adjusters (RCAs) available?

I swapped Rx-7 (GSL-SE) front suspension into my AE86, after doing so, my A arm (correct term?) has to reach upwards. I'm looking for a Roll Center Adjuster (large spacer for lowered cars to put the arm back into spec).

Are these available? I've briefly searched around and found nothing (nor have i heard of them being available for the FB)
Reply
Old May 28, 2004 | 11:43 AM
  #2  
MosesX605's Avatar
My wife bought me 2 RX-7s
Tenured Member 20 Years
 
Joined: Aug 2001
Posts: 2,328
Likes: 3
From: Saskatoon, Saskatchewan, Canada
Why did you do that?
Reply
Old May 28, 2004 | 04:27 PM
  #3  
fatboy7's Avatar
Got Boost?
Tenured Member 15 Years
 
Joined: Feb 2002
Posts: 1,066
Likes: 1
From: Watertown, MA
Turn-in spacers I think are what you are looking for. Jim at Gforceengineering.net makes them.

Why one earth did you swap the suspension onto a AE86? I mean if you're going to the trouble of custom fitting a suspension why not find a unequal length A-arm one to put on it?
Reply
Old May 28, 2004 | 05:24 PM
  #4  
peejay's Avatar
Old [Sch|F]ool
Tenured Member: 20 Years
Liked
Loved
Community Favorite
 
Joined: May 2001
Posts: 12,866
Likes: 573
From: Cleveland, Ohio, USA
And here I was considering (somewhat) the opposite swap...

edit: G-Firce Engineering's turn-in spacers adjust not only the roll center, but the Ackerman as well, as I see it. Being cheap, and needing more ground clearance/suspension travel anyway, I simply raised my car, first with the hockey puck method, and soon, with some 12"x200lb-in springs.

Last edited by peejay; May 28, 2004 at 05:27 PM.
Reply
Old May 29, 2004 | 02:37 AM
  #5  
O 16581 72452 5's Avatar
Thread Starter
The infamous number guy!
Tenured Member 10 Years
 
Joined: Dec 2002
Posts: 1,953
Likes: 0
From: Terre Haute, IN.
Two reasons, i had aftermarket suspension on my GSL-SE (Racing Beat) and the offset for my AE86 wouldn't allow me to fit a set of aftermarket rims.

I didn't see a reason to buy new rims and new suspension when i could use what i had.

Reguardless, had i have used aftermarket suspension for the car, i'd still want the adjusters to put the arm back to spec.

Edit:

I had a look at the site, $129 is redicules, is this the only site currently offering them?

Last edited by O 16581 72452 5; May 29, 2004 at 02:59 AM.
Reply
Old May 29, 2004 | 07:23 AM
  #6  
Rx7carl's Avatar
Airflow is my life
Tenured Member 10 Years
 
Joined: Aug 2002
Posts: 6,736
Likes: 2
From: Orlando, Fl
RB and Mazdatrix sells them too, but they arent ackerman correcting. Also, the g force spacers wont work on a street car. They are a race only part.
Reply
Old May 29, 2004 | 01:52 PM
  #7  
O 16581 72452 5's Avatar
Thread Starter
The infamous number guy!
Tenured Member 10 Years
 
Joined: Dec 2002
Posts: 1,953
Likes: 0
From: Terre Haute, IN.
Originally posted by Rx7carl
RB and Mazdatrix sells them too, but they arent ackerman correcting. Also, the g force spacers wont work on a street car. They are a race only part.
I've browsed each site for 20 minutes and cannot find them.
Reply
Old May 29, 2004 | 02:13 PM
  #8  
peejay's Avatar
Old [Sch|F]ool
Tenured Member: 20 Years
Liked
Loved
Community Favorite
 
Joined: May 2001
Posts: 12,866
Likes: 573
From: Cleveland, Ohio, USA
They are part of the lowering kit. The setup that physically relocates the suspension an inch higher. It comes with two replacement strut towers (cut off the tops of the old ones, weld in the new ones) and some ball joint spacers to get roll center back to stock.
Reply
Old May 29, 2004 | 02:18 PM
  #9  
Rx7carl's Avatar
Airflow is my life
Tenured Member 10 Years
 
Joined: Aug 2002
Posts: 6,736
Likes: 2
From: Orlando, Fl
I thought they sold the spacers seperately? Maybe they stopped, but I doubt it as its a good mod for certain race cars.
Reply
Old May 29, 2004 | 05:44 PM
  #10  
Eville140's Avatar
Senior Member
Tenured Member 10 Years
 
Joined: May 2002
Posts: 379
Likes: 0
From: Evansville, IN
Do you have any pictures of the swap? Anything wierd needed? I picked up a 82 toyota starlet (ae86's little brother) and was thinking of swapping on ae86 suspension but that widens the track a bit and makes finding wheels a pain. Might have to try some non se front suspension on it and see where the rims sit.

Later
Randy
Reply
Old May 30, 2004 | 12:19 AM
  #11  
O 16581 72452 5's Avatar
Thread Starter
The infamous number guy!
Tenured Member 10 Years
 
Joined: Dec 2002
Posts: 1,953
Likes: 0
From: Terre Haute, IN.
Originally posted by Eville140
Do you have any pictures of the swap? Anything wierd needed? I picked up a 82 toyota starlet (ae86's little brother) and was thinking of swapping on ae86 suspension but that widens the track a bit and makes finding wheels a pain. Might have to try some non se front suspension on it and see where the rims sit.

Later
Randy
I ran into two main problems, the camber was signficiantly positive (i purchased camber plates). The other is the top of the Rx-7's strut isn't very compatable with the spindle (thing-a-thing that bolts to the top of the shock tower) allowing for little tightening of the bolt, if you decide to go with the swap, you'll see what i'm talking about. I didn't try swapping the lower arms from the SE, i started to and wasn't able to get them off the AE86 so i gave up and purchased camber plates insted (would've most likely been very negative anyway).



The picture was before the camber was adjusted, it's noticeable in the picture.

Last edited by O 16581 72452 5; May 30, 2004 at 12:22 AM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
Sep 16, 2018 07:16 PM




All times are GMT -5. The time now is 11:20 AM.