ssyellow

Due to the amount of people posting in my thread, I figured this would be a nice thread to have where we can all discuss our setups and such. Lots of other forums have this and it helps others eliminate trial and error along with tons of searching to find out what works.

However, I assume lots of us will be running Powell parts

For your first post, please follow my post below to get some details in about your car/setup. The more details (alignment specs, tire width, brake pad model, etc.) the better. Feel free to elaborate on anything about your setup you would change or any issues you ran into.

-Nathan

2009 Cobalt SS with G85

- GMS1
- K&N drop in filter & ZZP factory intake mod
- ZZP Cat-less downpipe
- Hahn 3" cat back exhaust
- Powell YYZ V.3 springs
- Powell XXX rear sway bar
- OEM front pads and rotors, OEM rear rotors with HPS pads.
- 18 x 8" +38 offset O.Z. Racing Ultraleggera wheels (18.5 lbs. each)
- 235/40/18 Direzza ZII's (Treadware rating: 200)
- Alignment= Camber: -1.4 front/-0.5 rear, Caster: 3.4 front, Toe: 0.1 front, 0.0 rear

- Future plans -
- Prospeed RS683 brake fluid
- Goodridge steel brake lines
- Powell CAB's
- Power Grid adjustable sway bar end links
- Koni adjustable shocks/struts
- Powell tow hooks
- Steel base shifter bushings

Notes: Extremely minor rubbing in the rear with the Wheel/tire setup, will be doing a minor fender roll. So far, successful setup (DSP & SMF) in the events/competition I have ran against. Personal thread here: https://www.cobaltss.net/forums/auto...thread-310103/


by navarrenathan

ssyellow

Helpful links and information (in progress)....

Powell Race Parts website: Powell Race Parts.com

John's thoughts on suspension: https://www.cobaltss.net/forums/susp...ension-202915/

Official/unofficial Powell Racing Parts thread: https://www.cobaltss.net/forums/gene...powell-296456/

Generic press release info: https://www.cobaltss.net/forums/08-1...sticky-260307/

Grave

iTrader: (7)

Good idea.

alerosaint

I want to know who running zfrs on these courses and what psi? I leaning towards a 20 psi tune

ssyellow

I would say that would be more than enough.

To be honest, there are more things to account for within the tune for road course use. High loads for a long duration of time = lots of heat and stress. Keeping EGT down is crucial from what I understand.

alerosaint

Agreed....the 6758 should push 20 psi more efficiently than a K04....but I think ...don't think I can do 15 psi.

Foximus

iTrader: (13)

when i get home from work tonight I will make a post about the car

Whitnith

iTrader: (2)

Eh, I'll bite.

I just do track days. I generally do two events (4 days) a year at Road America, and then a couple day events at other area tracks, mainly Blackhawk Farms.

Maybe one or two autocrosses a year, but I just go for fun. I'm not competitive, and I'm also stuck in SMF.

06 G85 SS/SC

Relevant Power and Cooling Mods:
2.7
80s
E85 HPT Tune
Dual Pass
CXRacing Heat Exchanger (Mounted in Front)
Option B
Raw 3" Intake
Badmab Header
ZZP 3" Catted Downpipe
Vibrant 3" Catback

Handling/Stopping Mods:
LNF Struts
Koni Yellow Shocks
Powell v.2 YYZ Springs
Powell Street Bar
Under Car Rails
Brembo Swap
Front Pads: Track: Raybestos 43 Street: Stock Brembo
Front Rotors: Track: Centric Street: Stock
Rear Pads: Hawk HP+
Rear Rotors: Centric
Stainless Lines
ATE Superblue/Amber (At least until my stockpile of Superblue runs out... I swap every flush.)
Street/Rain - Enkei Ammodo 18x8 with 235/40/18 BFGoodrich g-Force KDW2s
Track - Enkei PF01 18x8 with 255/40/18 Continental Racing Slicks Hot PSI 35 front, 36 rear.
Fenders have been rolled.

Haven07

Thank you!!! Sub'ed for later

Dyn0mitemat

iTrader: (3)

Good read.

I've had rwd cars on the track and like a setup that's more prone to oversteer (if it wasn't neutral). But with mine I'm thinking id rather have the opposite. Under steer can be corrected (like stated by john) with carefully backing off the throttle (hopefully not causing liftoff oversteer) and straightening the front wheels slightly. I've seen too many videos of guys in these cars on the track where either liftoff oversteer, suspension setting setup incorrectly (overly stiff rear sway bar), or slight driver error has led to the ass end of the cars coming around. Not that under steer in extreme situations is pretty either, but its more controable in these cars.

I'm running a hardcore rear bar, yyzs (v5) zzp bbk up front and will be getting konis as well, probably going to run direzza z2s. What's everyone prefer for tire sizes, pressures and shock (koni) settings?

alerosaint

I'm running:
YYZ v2
Powell hardcore bar
235/18 NT05
Koni yellow front/rear (Wang speed recommended settings)
Stock pads

Haven't tested the current setup fully on track yet hopefully after CED.

Grave

iTrader: (7)

I couldn't resist any longer and ordered some tires. 245/40/17 Hankook Z214 C71 compound.

I still don't have the Team Dynamics wheels I ordered in January. The next autocross is June 21 and 22. Hopefully they will be here by then.

ssyellow

Thanks for the contributions so far everyone, hopefully this becomes a nice source of information for each other.

Foximus

iTrader: (13)

its amazing how much better you can make hte cars tturn once you properly know how to work the throttle, lol

Foximus

iTrader: (13)

I fall into SMF hard for AutoX. looking to do track days, and next year compete in Redline Time attack.

2006 LT2 / L61(2.2L)

Power:
Fully built L61 Engine
Eagle Crank
Eagle Rods
Weisco Pistons
1mm oversized valves
Comp Cams Stage 4 cams (motor was set up to do 25psi on a turbo)
M62 w/ Dual Pass cooling & Cobra H/E
Injen Intake
Badmab Shorty Header.
ZZP 2.5" Stainless high flow cat and catback
Clutchmasters 8 puck race clutch
Quailfe LSD


Stop and Turn
Goodrich Stainless line kit
NAPA Ultra Premium rear Drum Kit
Napa Ultra Premium Rotors
Hawk HPS Pads
ATE Superblue / Type 200 fluid
SKF Wheel hubs
1" Rear swaybar (forget whose)
Steering Rack spacers
D2 Racing Coilovers. 8k rear 12k front springs, custom front shock valving( full on -4.0 camber at the track)
Front sway bar and endlink delete
Fe5 Control arms with Powell LCABs and TCABs

Wheels/ Tires
Street: 17" Sparco Asetto Gara wrapped in 235/45/17 Hankook RS2's
Track: 15" Kosai K1 wrapped in 225/45/15 Hankook RS3 (couldnt justify R comps this year) 37psi front, 35psi rear


Etc
Impact! 6ppoint harnesses
Corbeau raceseat ( need a new one)
custom harness bar setup from a friend that builds supermodified
CF hood, soon CF tail for weight
Rear seat delete
Tow hooks (very useful actually.... >__> )






And with my new grills.

m33pm33p

Good thread is good

Second year auto x'ing

Car and mods:
2009 Cobalt ss
yyz v3
koni yellow
xxx bar
K&N
zzp Dp
trifecta tune(use stock on track)
17x9 team dynamics with old rs3's 255 40 17
Raybestos black box pads
bps short shifter and cable clamp/base bushings

Future mods:
Cabs
rear beam bushings
camber plates for -2.5-2.7 degree camber in front
Custom ucrs being made by a few of us in our local cobalt club
stainless lines
tires, tires and more tires.

Car is perfect the way I have it now, get's the back end out when you want into corners and it very stable/predicable in every way. Just need some r comps or newer street tires to be competitive in STX, and lots driver mod

We are blessed with being able to rent a 1000 foot by 500 foot runway pad at a local airport, which gives us big fun fast courses.

Here's some of our club members


Pic from last year


Current setup, requires a 5mm spacer in the rear to clear tires. Much worth it for the extra tire, had no problems keeping up to all the porsches at the local porsche club auto x a few weekends ago.

mongorat427

iTrader: (82)

2009 SS TC 1.08 at PIRC (Beaver Run)

HP tuners tune
fully bolted
K&N Intake
Full E85
ZZP fueling cam
ZZP Opel injectors
ZZP 5th injector
Jennety 3 inch exhaust
Hahn down pipe
Ported intake and TB
Crazy Steve Intercooler
Powell Built 4.45 Cyroed F35 (best mod ever)



Custom adjustable splitter. I run it 3 inchs of the ground at the track. Can be adjusted 3/4 inch up or down with a 10mm wrench
5x114.3 Conversion
Drag DR31s 17x9 front 17x8 rear
Hoosier A6s 295/35 17 fronts 255 rears
Rebel track bay
Custom D2s front and Powell YYZs and Konis reat
-1.50 camber ft 1.75 rear
Spent 1 week reworking the fenders with a dolly and body hammer
Powell rear swaybar





[URL=http://s931.photobucket.com/user/daddmann/media/My%20Balt/AirSplitter7_zpsb02d0201.jpg.html]

m33pm33p

^^ whats the reasoning behind the staggered setup, then throwing camber in the rear? Essentially couldn't you just run the same size tires front/back and achieved the same kind of balance without the camber? (assuming it's to clear the fenders etc?)

ssyellow

If anyone has helpful threads they think should go into my second post, feel free to comment with a link. I'll get around to finding the rest I think are good in two weeks when my finals are done.

NickD

Would this thread be better split between road course and autocross?

I run road coarses, so far averaging around 3 track days per season. I haven't done much to my car. It's an '09 SS/TC.

Hahn Intercooler
Hahn DP
Hahn CAI
Hahn Charge Piping
Trifect Tune (stock on track)
Factory rotors and pads up front
Centric rotors and powerstop pads in rear
Super Blue DOT4 brake fluid
BPS Shfit Linkage

After a 2 day event at Watkins Glen I discovered my left front caliper is binding, so I will be rebuilding that before my next track day in July (Pocono SouthEast). I also want to look in to Powell rear sway, ss brake lines and floor mounted gas pedal (I have a hard time heal-toeing on the track).

I run my street tires, Continental ExtremeContact DW, with pretty good results.

I've ran 2 track days so far with the above setup with satisfying results and 4 tracks days without the engine modifications, also with good results. I've only done 6 track days with the car total.

Omiotek

iTrader: (2)

heel to toe is very is easy in this car.... just takes practice. i had a hard time as wel but after about 5 events i had it spot on

r1owner

I agree... I just practice at every stop I come to!

charlster

Anyone having ebrake issues after autocrossing? Within 2 autocrosses, my ebrake doesn't really hold well. I park on a slight hill at work and the ebrake handle is pulled all the way up and if you rock the car, it'll start to slip.

I've had the rear calipers changed under warranty already as well.

NickD

I haven't had any issues myself. Just never, use your e-brake after a session, turn the car off and leave it in gear. Have you also tried adjusting the e-brake?

yellowsupercharged06

iTrader: (3)

Wheels / Tires:

* Enkei Falcon’s – 18 x 8 wrapped in Nitto NT05 – 225/40/18

Suspension / Handling:

* Pedders Springs
* Koni Yellow Shocks (Rear)
* 06’ FE5 – Struts
* Moog Sway Bar Endlinks
* OTTP Spherical T-CABS
* OTTP Derlin L-CABS
* OTTP 1.25” Rear Sway Bar
* Powell Rotated Trans. Mount
* LNF OEM Rear Transmission Mount
* Powell Harness Bar
* Sparco R100 Racing Seat
* Powell Xd Seat Brackets

Brakes:

Front -
* LNF Brembo Calipers/Rotors/Pads
* FTP Stainless Steel Brake Lines

Rear-
* Stock LSJ Calipers/Rotors
* PowerStop Pads


Performance:

* M62 Supercharger w/ 2.8” Pulley
* Dual Pass Endplate
* Siemens 80 lb Fuel Injectors
* Bad Mab Shorty Header
* ZZP 3”-2.5” Catted Down Pipe
* ZZP 2.5” Catback Exhaust w/ resonator
* Injen Cold Air Intake
* OTTP Option B
* OTTP Front Mount Heat Exchanger
*LSJ-Ion Ported Head w/ Supertech 75lb Valve Springs

Tuned on E85 by 06blackg85ss