Suspension Improvements - F-Body Road Racing and Autocross Forums

Over the weekend I took the Camaro out to the Midwest Musclecar Challenge (www.midwestmusclecarchallenge.com/).

I had a blast, however I now am much more humble about my driving ability.

I have the power, I have the brakes, now I am ready to begin improving the suspension on the Z.

This, is where you guys come in.

Usage
Street - 1-2 times a month to work or cruises
Track - 3 or 4 track day events per year
Autocross - occasionally

Details about the car:
1991 Z28 hardtop

LS1/T56 Stock rear with 3.42 posi
C5 corvette front brakes, factory 91 z rear disks (HP+ pads and ATE superblue fluid)
weld in subframe connectors
Spohn tubular K-member

Suspension
boxed rear control arms
solid panhard bar
Factory 91 Z28 front and rear swaybars (not sure of size)
Eibach sportline springs (fronts cut 1 coil to level ride height after LS1 transplant)
no name shocks and struts from prior to 2003 when I bought the car.

Wheels/ tires
18X8 (245/40/18) front 18X9.5 (285/35/18) rear street tires. 200 treadwear

Be aware, I am not a rich man. changes only come slowly when I can scrape together extra cash. I need a priority list to tackle for best bang for the buck.

Questions:
1) I know I should replace the shocks/struts. should I jump straight to double adjustable or is there a less expensive option that will help?
2) Have I totally screwed myself up by cutting the coils on the Sportlines? What rates should I target?
3) Should I skip coils and struts and convert to coil overs?
4) Can I have a good setup for both track day and autocross without changes?

TrakCar View Member Profile	May 5 2014, 12:56 PM Post #1
Member Group: Advanced Members Posts: 37 Joined: 13-May 05 From: Louisville, Ky Member No.: 743	Over the weekend I took the Camaro out to the Midwest Musclecar Challenge (www.midwestmusclecarchallenge.com/). I had a blast, however I now am much more humble about my driving ability. I have the power, I have the brakes, now I am ready to begin improving the suspension on the Z. This, is where you guys come in. Usage Street - 1-2 times a month to work or cruises Track - 3 or 4 track day events per year Autocross - occasionally Details about the car: 1991 Z28 hardtop LS1/T56 Stock rear with 3.42 posi C5 corvette front brakes, factory 91 z rear disks (HP+ pads and ATE superblue fluid) weld in subframe connectors Spohn tubular K-member Suspension boxed rear control arms solid panhard bar Factory 91 Z28 front and rear swaybars (not sure of size) Eibach sportline springs (fronts cut 1 coil to level ride height after LS1 transplant) no name shocks and struts from prior to 2003 when I bought the car. Wheels/ tires 18X8 (245/40/18) front 18X9.5 (285/35/18) rear street tires. 200 treadwear Be aware, I am not a rich man. changes only come slowly when I can scrape together extra cash. I need a priority list to tackle for best bang for the buck. Questions: 1) I know I should replace the shocks/struts. should I jump straight to double adjustable or is there a less expensive option that will help? 2) Have I totally screwed myself up by cutting the coils on the Sportlines? What rates should I target? 3) Should I skip coils and struts and convert to coil overs? 4) Can I have a good setup for both track day and autocross without changes?

BumpaD_Z28 View Member Profile	May 6 2014, 03:12 AM Post #2
Advanced Member Group: Advanced Members Posts: 592 Joined: 16-October 06 From: Logan, UT Member No.: 1,416	Pics of the car ??? Just for reference I'm running 850# front 225# rear ground control "weight jacker" springs, rod ended rLCA's and PHR, with 36/24 sway bars and Koni single adjustable ... My rears or on car adjustable so I thnk that makes them the 4th gen version (I forget) ~Dave

TrakCar View Member Profile	May 14 2014, 02:53 PM Post #3
Member Group: Advanced Members Posts: 37 Joined: 13-May 05 From: Louisville, Ky Member No.: 743	QUOTE (BumpaD_Z28 @ May 5 2014, 09:12 PM) Pics of the car ??? ~Dave Pics, I got some pics. https://flic.kr/p/nBeUjN Of course the best pictures in that album aren't my car.