Originally Posted by Powell Race Parts

you didnt know about the local zzp option B person with issues, or the Ohio guy or the local turbo 2.4 with a bad ecu ....you know.

Originally Posted by cwilson

John,

This Sticky is overdue, and an excellent idea. I just wanted to say hi, and comment on a couple of your excellent products.

I installed the subject springs and bar on my 08 TC Cobalt this year , and I'd say my autox times have improved (conservatively) a good .5 seconds or better. Your XYZ springs are firmer than stock but not harsh at all , and the Hardcore bar makes the rear end rotate very predictably. I'm not sure about others, but I softened the rebound on my rear Koni shocks when I installed the bar, which seems to have worked well.

My next items are better bushings and maybe the UCR. Thanks for your expertise and service John.

Chuck Wilson
08TC Cobalt
Lees Summit, MO

Originally Posted by cwilson

John,

This Sticky is overdue, and an excellent idea. I just wanted to say hi, and comment on a couple of your excellent products.

I installed the subject springs and bar on my 08 TC Cobalt this year , and I'd say my autox times have improved (conservatively) a good .5 seconds or better. Your XYZ springs are firmer than stock but not harsh at all , and the Hardcore bar makes the rear end rotate very predictably. I'm not sure about others, but I softened the rebound on my rear Koni shocks when I installed the bar, which seems to have worked well.

My next items are better bushings and maybe the UCR. Thanks for your expertise and service John.

Chuck Wilson
08TC Cobalt
Lees Summit, MO

Originally Posted by YelloEye

Correct me if I'm wrong, but wouldn't UCR put you in Street Prepared?

Originally Posted by padlock

I'm stuck running in Street Prepared this year now thanks to "rule changes"

guess that gives me an excuse to go ***** to the walls on powell parts now

Originally Posted by Powell Race Parts

did not have banjo bolts and the GM rear flex hoses are troubling two different numbers looked the same to me... ugh. how to isntall is next.

Originally Posted by YelloEye

What rule changes bumped you?

Originally Posted by padlock

well maybe its just a local AutoX thing, but the one place I go to moved to a points based classing system vs the old "modification" based system. basically each mod is worth x-number of points and each class is within a certain points range. Apparently with what I have done I'm now running in Street Prepared instead of Street Modified

Originally Posted by YelloEye

Sounds like a local rule. classing for us goes: Stock, STX, SP, SM. I want nothing to do with running out of STX, love the competitiveness of the class.

Originally Posted by padlock

yea normally I run STX, but even now I cant do that according to the rules with having a catless downpipe and IC.. so looks like I'm in DSP regardless

either way, I'm not in it to be crazy competitive. all I end up looking at are the RAW times anyways, and with being soo close to STX trim I can still compare to where I'm at with their times

If I really wanted to be competitive I wouldve left the car in stock class (thats where the cobalt really shines)

Originally Posted by YelloEye

STX allows intake tract modifications up to the throttle body. Catless is SM i think.

Originally Posted by padlock

this is the sheet I go off of for my "region" as of last year

http://www.scca-milwaukee.org/solo/2...sification.pdf

Originally Posted by SCCA Rulebook 2013

Street Touring
14.10.C. The air intake system up to, but not including, the engine inlet may be
modified or replaced. The engine inlet is the throttle body, carburetor, compressor inlet, or intake manifold, whichever comes first. The
existing structure of the car may not be modified for the passage of
ducting from the air cleaner to the engine inlet. Holes may be drilled
for mounting. Emissions or engine management components in the
air intake system, such as a PCV valve or mass airflow sensor, may
not be removed, modified, or replaced, and must retain their original
function along the flow path.

E. Catalytic converters: Any catalytic converters are allowed, but must
attach within 6” of the original unit. Multiple catalytic converters may
be replaced by a single unit. The inlet of the single replacement converter may be located no further downstream than 6” (152.4mm)
along the piping flow path from the original exit of the final OE converter. The extents of an OE converter are defined by the expansion
chamber in which the catalyst is contained, regardless of placement
within larger exhaust sections. Replacement converters must have
a minimum catalyst density of 100 cells per inch and minimum substrate length of 3” (76.2mm).

Originally Posted by SCCA Rulebook 2013

Street Prepared
15.10.F. Emission control devices may be modified or removed. This permits
the oil filler cap to be modified or substituted but does not allow valve
covers or cam covers to be altered to install a breather or for any
other purpose.

Originally Posted by Sox-Fan

Oh, holy cow. After looking at that pdf there is no way in hell I should be running stf.

Originally Posted by SCCA Rulebook 2013

GM ECU REFLASH
The Technical Service Bulletin #06-06-04-051 regarding engine recalibration (i.e., an ECU reflash) of the Z0K Solstice and Cobalt SS
is not legal for Stock category use since it is specified for competition
purposes and thus does not meet the requirements of sections 13.0,
12.4, and 3.8.A.

GM STEERING KNUCKLES
The competition-only steering knuckles for the Cobalt, G5, and ION,
as specified in Service Information Document #1864485, do not
meet the requirements of the Stock category

Originally Posted by 07MetallicSC

I msgd Gloria about those parts i was inquiring about. I think in Johns old age he forgot me. Unless it was some hot young blonde who stumbled upon the shop with a flat tire, then id completely understand lol

Originally Posted by rockSTAR_SS

Any pictures of those spacers before and after installation?