Suspension opinions needed
06-03-2008, 09:28 PM
#1
Instructor
Thread Starter
Suspension opinions needed
I've been going round and round gathering opinions and I've come up with a list of suspension upgrades for my 1980SC coupe.
My goal is to max out the available 8 points in the IS class in PCA. The total for the changes proposed is 7 so I'm under the max. I'm looking for opinions and insight before I pull the trigger. I only want to do this once so I've got to get it right the first time.
Rear
ERP Polybronze spring plate bushing
ERP Cambermax
Sanders 28mm Torsion bars 1 point
Smart Racing anti roll bar 1 point
WEVO roll bar mount
factory trailing arm bushing
Front
ERP Polybronze control arm bushing
factory control arm mounting bushing
ERP De-cambered ball joints
Sanders 22mm Torsion bars 1 point
Smart Racing anti roll bar 1 point
ERP Bump steer kit
Turbo Tie Rods
ERP Triangulated strut brace 1 point
DOT50 tires 2 points
I appreciate any and all input. Please feel free to make any suggestions.
My goal is to max out the available 8 points in the IS class in PCA. The total for the changes proposed is 7 so I'm under the max. I'm looking for opinions and insight before I pull the trigger. I only want to do this once so I've got to get it right the first time.
Rear
ERP Polybronze spring plate bushing
ERP Cambermax
Sanders 28mm Torsion bars 1 point
Smart Racing anti roll bar 1 point
WEVO roll bar mount
factory trailing arm bushing
Front
ERP Polybronze control arm bushing
factory control arm mounting bushing
ERP De-cambered ball joints
Sanders 22mm Torsion bars 1 point
Smart Racing anti roll bar 1 point
ERP Bump steer kit
Turbo Tie Rods
ERP Triangulated strut brace 1 point
DOT50 tires 2 points
I appreciate any and all input. Please feel free to make any suggestions.
06-03-2008, 11:52 PM
#3
RL Technical Advisor
Looks pretty close,..
Like Ed wrote, you DO need stiffer springs to go racing. The one very important thing I didn't see are shocks,...............those are truly "Mission Critical" for success.
Like Ed wrote, you DO need stiffer springs to go racing. The one very important thing I didn't see are shocks,...............those are truly "Mission Critical" for success.
06-04-2008, 08:22 PM
#6
Racer
Join Date: May 2007
Location: San Diego, CA
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Depending on your track preferences, I'd agree that slightly stiffer rear T-bars would be good. Of course, if you primarily AX in parking lots, not as critical.
I currently run an 83 SC with a 21F/30R T-bar set-up with custom valved stiff Bilsteins. Primarily I AX the car in San Diego. On the big tracks it has a slight oversteer "desire" that I find managable, however on the tight slow AX courses it turns in "briskly" and pivots very nice for pitch-and-catch throttle-steer applications. So it wil depend on what you do with it: big tracks vs. tight AX tracks. If you're going to primarily big-track it, definitely go to 30 or even 33mm rear T-bars.
My 2-cents. Good luck!!
I currently run an 83 SC with a 21F/30R T-bar set-up with custom valved stiff Bilsteins. Primarily I AX the car in San Diego. On the big tracks it has a slight oversteer "desire" that I find managable, however on the tight slow AX courses it turns in "briskly" and pivots very nice for pitch-and-catch throttle-steer applications. So it wil depend on what you do with it: big tracks vs. tight AX tracks. If you're going to primarily big-track it, definitely go to 30 or even 33mm rear T-bars.
My 2-cents. Good luck!!
