Founders Performance newest street friendly lower control arm!!
#1
Founders Performance newest street friendly lower control arm!!
MADE IN THE USA!
Founders Performance Performance Lower Control Arms 3 Piece Poly Joint
1982-2002 Chevrolet Camaro or Pontiac Firebird
3 Piece Poly Joint Bushings
Founders Performance Performance Lower Control Arms 3 Piece Poly Joint
1982-2002 Chevrolet Camaro or Pontiac Firebird
3 Piece Poly Joint Bushings
The control arm bushings found in the F-Body automobiles can have a significant impact on the vehicle’s ride, comfort, handling, acceleration, noise and vibration. When the car leans (i.e., rolls) in a turn, one side of the chassis moves upward relative to the rear axle, the other side moves downward, and the control arms must twist to allow for the axle to articulate. This causes the control arm bushings to bind. If this bind becomes excessive, it will raise the rear wheel rate and produce sudden, uncontrolled, undesirable changes in handling (e.g., snap oversteer).
Chevrolet minimizes this suspension bind by using compliant rubber bushings in both lower control arms. These relatively "soft" bushings help accommodate the necessary motion of the control arms during body roll. However, the rubber bushings do not provide much in the way of forward and aft support, which can cause wheel hop during hard acceleration and braking.
It has become common practice to replace the stock rubber control arm bushings with solid or two piece polyurethane bushings to resolve the shortcomings of the soft rubber bushings. Hard polyurethane bushings eliminate wheel hop, reduce axle deflection, and improve rear straight line grip. However, the downside of common aftermarket bushings such as delrin, steel, stiffer rubber, solid or two piece polyurethane bushings is they prevent the necessary movement of the control arms during body roll, which in turn produces significant binding in the suspension when the vehicle is cornering. The polyurethane bushings also place unnecessary high stresses on the torque boxes, which are the attachment points for the control arms to the chassis. Standard aftermarket control arms do not allow for rotation of the control arm during cornering because of the stiffness of the bushings.
The Solution:
We have designed and built a tubular lower control arm which will eliminate the unwanted uncontrolled control arm flex. Round tubing is harder to work with but has many other advantages over square or rectangular tubing. It is stronger in bending, torsion, and also lighter than square or rectangular tubing.
We then solved the shortcomings of the factory rubber and other aftermarket polyurethane and stiffer rubber bushings. This was accomplished this with our 3 piece Poly-Joint bushing combination. By spending countless hours looking and dissecting the geometry and the need of the rear suspension we come out with bind-free bushings set up. Our Poly-Joint bushing combination incorporates a very hard inner polyurethane ball which is surrounded by soft outer socket cups. This combination allows the bushing to articulate like a spherical bearing during cornering but the hard inner ball does not allow the bushing to deflect during acceleration giving you great traction during acceleration like solid bushings but remains bind free like a spherical bearing during cornering for great predictable traction in the corners.
Results from the testing:
Poly-Joint Bushings:
5 degrees of total rotation = 26.1 foot/pounds of torque
7.5 degrees of total rotation = 35.8 foot/pounds of torque
10 degrees of total rotation = 41.7 foot/pounds of torque
Standard 2 piece setup using only 85 durometer bushings:
5 degrees of total rotation = 124.7 foot/pounds of torque
7.5 degrees of total rotation = 156.4 foot/pounds of torque
10 degrees of total rotation = not measurable with fixture. The 1/2" grade 8 bolt twisted in half at 9.2 degrees which was 210 foot/pounds of torque.
THESE ARMS ARE SUPPLIED WITH SPECIALLY DESIGNED GREASE FOR OUR POLY-JOINT BUSHINGS.
Features:
- 1.75" Diameter High Strength Steel Tubing
- High frequency pulse spray welded for superior strength (stronger than tig welds)
- 3 Piece Poly-Joint bushing on chassis and axle side.
- Comes standard with specially formulated poly grease.
- Standard Red or Black powder coating for a great looking long lasting finish.
- Improves responsiveness and control.
- 100% MADE IN THE USA
Fits: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Camaro and Firebird
For questions on this item please email us directly at salesdept@foundersperformance.com
#2
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Car: 1984 Camaro
Engine: LS1
Transmission: T56
Axle/Gears: Ford 9"/4.30
Re: Founders Performance newest street friendly lower control arm!!
I'm impressed already. I'm currently using your standard poly bushing tubular lower control arms and have no issues, but this setup seems like the best of both worlds, drag and handling capability.
#3
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Car: 1991 Christine Z28
Engine: RV Cam and Intake 350 SBC
Transmission: 5speed
Axle/Gears: 3.08 ls Posi
Re: Founders Performance newest street friendly lower control arm!!
How often is greasing required?
#4
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Join Date: Dec 2002
Location: Central FL
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Car: 91 Camaro
Engine: 3.1...not hardly stock
Transmission: 700r4....not stock either
Axle/Gears: 3.73
Re: Founders Performance newest street friendly lower control arm!!
I didn't see it mentioned but wouldn't this also keep some degree of ride comfort that rod ends might give up? Looks good, though!
#5
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Car: 1989 gta
Engine: L98 D1SC procharger twin IC
Transmission: 700r4
Axle/Gears: 3.27
Re: Founders Performance newest street friendly lower control arm!!
will they be made in adjustable lca ?
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#8
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Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
Re: Founders Performance newest street friendly lower control arm!!
Founders do you guys have an ETA on your Torque arms???????????????????
#9
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Re: Founders Performance newest street friendly lower control arm!!
what is the cost on these? i still have a set of the regular ones sitting in the garage waiting for the car to be undercoated first, now you had to come out with something better that i want. gee thanks
#13
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Car: '91 Firebird '85 Firebird
Engine: 305 TPI
Re: Founders Performance newest street friendly lower control arm!!
Ingenious joint. I will be ordering a set. I may have looked over it on your site but what kind of warranty do you have on your parts?
#14
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Car: 84 Z28
Engine: 91 L98 long block with Pro-jection
Transmission: T5
Axle/Gears: 91 10bolt w/ 3.42s and T2R
Re: Founders Performance newest street friendly lower control arm!!
Will the joint itself work in the stock LCA? Some of use are required to run the stock LCA itself due to class rules (ESP). While I realize the joint itself is not necessarily compliant with the ruleset, I'm wondering if this is something that would be a direct fit. Perhaps it might be a rule change they'd consider.
If these will work in the stock LCA, can you give a price without the arms themselves, and possibly price for 2 joints or for 4?
If these will work in the stock LCA, can you give a price without the arms themselves, and possibly price for 2 joints or for 4?
#15
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Car: 89 5.7 IROC/95 LT1 Corvette
Engine: All 5.7's
Transmission: 700R4 (Roessler)/ZF6
Axle/Gears: 10 bolt Zexel 3.23's. CTW 17" wheel
Re: Founders Performance newest street friendly lower control arm!!
They look identical to the J&M's I put on my 89 Iroc. Bolted right up in the stock location with no issues.
#16
Re: Founders Performance newest street friendly lower control arm!!
Everybody keeps saying this about Founder's products...
Do a little
And you'll never wonder about this again.
Hint: Founders, J&M, and Hotpart are one and the same
Anyway, These look like a great option, and I've never been disappointed in any Founders product I've ordered! I'll definitely consider these when my 9" goes in.
I haven't checked the site, but are these available in an adjustable LCA? Or maybe just as a sleeved bushing? I may end up welding my own LCA's up. edit* nevermind, I just saw there is an adjustable version!, still wondering about the sleeved bushing though.
Last edited by 88gunmetalgta; 10-06-2012 at 08:04 PM.
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