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TrakCar
post May 5 2014, 12:56 PM
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From: Louisville, Ky
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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?
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TrakCar
post May 14 2014, 01:32 PM
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I thought I would update the group.

I have the Memphis track Event this weekend. (autocross, HPDE, and drag race)

Changes for this event:
1) Swap the fleabay "racing" seat for a Sparco Evo
2) Added a power steering cooler since I was puking fluid out the cap after every session. (I know the best solution is a turn one pump, but they are on back order)
3) Re-route the clutch line off the header & flush/ fill the clutch system.

I am thinking about attending a SCCA autocross Test-N-Tune event Saturday May 31st. If I do then I believe the next step is to purchase and install KYB AGX shocks and struts. that will blow my budget for a while. It will be nice to have plenty of runs to change shock settings and see how it affects the car.

I do believe this will be a LONG term suspension tuning project.

I guess I need to start finding different size swaybars and possibly springs.

Mostly I need to get more seat time! I think autocross may be the cheapest/ only option I have to improve.
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Pablo
post Jun 1 2014, 08:19 AM
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QUOTE (TrakCar @ May 14 2014, 05:32 AM) *
2) Added a power steering cooler since I was puking fluid out the cap after every session. (I know the best solution is a turn one pump, but they are on back order)



Actually there's a much easier and cheaper solution to this isssue: http://www.rockauto.com/catalog/moreinfo.p...&cc=1095667

This is a p.s. pump cap from a mid 90s dodge truck. It has a rubber baffle on the stem (you can see it in the pic) that completely eliminated leaks on my car. I don't have a cooler either. I think the main issue is not that the fluid overheats but rather it just sloshes out of the cap under hard cornering. YMMV but it works for me.
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dailydriver
post Jun 1 2014, 08:23 PM
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QUOTE (Pablo @ Jun 1 2014, 04:19 AM) *
QUOTE (TrakCar @ May 14 2014, 05:32 AM) *
2) Added a power steering cooler since I was puking fluid out the cap after every session. (I know the best solution is a turn one pump, but they are on back order)



Actually there's a much easier and cheaper solution to this isssue: http://www.rockauto.com/catalog/moreinfo.p...&cc=1095667

This is a p.s. pump cap from a mid 90s dodge truck. It has a rubber baffle on the stem (you can see it in the pic) that completely eliminated leaks on my car. I don't have a cooler either. I think the main issue is not that the fluid overheats but rather it just sloshes out of the cap under hard cornering. YMMV but it works for me.


Does this only fit older, 3rd gen, L98 type pumps, or will it work on the newer, LS1 style Delphi (??) pumps?
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Posts in this topic
TrakCar   Suspension Improvements   May 5 2014, 12:56 PM
RacingZ-44   QUOTE (TrakCar @ May 5 2014, 07:56 AM) Ov...   May 5 2014, 01:51 PM
TrakCar   QUOTE (RacingZ-44 @ May 5 2014, 07:5...   May 5 2014, 02:51 PM
gscherer78ta   QUOTE (RacingZ-44 @ May 5 2014, 01:5...   Jun 4 2014, 12:52 PM
Blainefab   QUOTE (gscherer78ta @ Jun 4 2014, 05:52 A...   Jun 4 2014, 09:07 PM
trackbird   Hey James! Good to see you around. That car is...   May 5 2014, 02:45 PM
TrakCar   QUOTE (trackbird @ May 5 2014, 08:45 AM) ...   May 5 2014, 02:53 PM
CrashTestDummy   Keep a close eye on that K-member. Few ever survi...   May 5 2014, 04:31 PM
TrakCar   QUOTE (CrashTestDummy @ May 5 2014, 10:31...   May 5 2014, 05:20 PM
BumpaD_Z28   Pics of the car ??? Just for reference I'm ru...   May 6 2014, 03:12 AM
TrakCar   QUOTE (BumpaD_Z28 @ May 5 2014, 09:12 PM)...   May 14 2014, 02:53 PM
nape   If you want to get serious about the street tire e...   May 6 2014, 05:41 AM
TrakCar   I thought I would update the group. I have the Me...   May 14 2014, 01:32 PM
Pablo   QUOTE (TrakCar @ May 14 2014, 05:32 AM) 2...   Jun 1 2014, 08:19 AM
slowTA   That's the same power steering cap I used on m...   Jun 1 2014, 01:26 PM
dailydriver   QUOTE (Pablo @ Jun 1 2014, 04:19 AM) QUOT...   Jun 1 2014, 08:23 PM
Pablo   QUOTE (dailydriver @ Jun 1 2014, 12:23 PM...   Jun 2 2014, 07:32 AM
Smitty2919   That's my buddies brown C2 that you have a pic...   May 15 2014, 12:45 PM
TrakCar   I took the car to the F-body event last weekend. n...   May 22 2014, 04:20 PM
trackbird   I'd run the same size tires on both ends. As y...   May 22 2014, 04:22 PM
slowTA   The cap will fit but the dipstick part is too long...   Jun 2 2014, 04:07 PM
CrashTestDummy   We got a 80's/90's Saganaw pump cap off a ...   Jun 4 2014, 06:16 PM

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