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Old 02-18-2001, 11:26 AM   #1
AutoXr
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Question Autocross setup questions

For those of you that have run autocross events, what was your setup (tires, tire presure, shocks, sway, etc.) and how effective was it?
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Old 02-18-2001, 01:36 PM   #2
Gary (gg)
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Location: Wichita, KS
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98 2.5RS
Rally Blue

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I ran G Stock the last 2 years. I had KYB AGX's, SPO brake pads, autox alignment, cat-back exhaust, harness, and ran BFG G-Force TA R1's 245/45R16 in the front and 225/50R16's in the rear. Tire pressures were 44/38. Strut settings were at stiffest, 4/8. Hope that helps.
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Old 02-18-2001, 11:33 PM   #3
Shin RS
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I don't have full suspension mods yet, (shocks and springs), but for now I'm running an exhaust, custom intake, agx front strut tower brace, 20 mm rear anti-roll bar, and BFgoodrich KDWs at 41/38 f/r tire pressure.
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Old 02-19-2001, 08:06 AM   #4
subrew2
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2004 STi
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I'm running g-stock as well. KYB AGX typically set at 3F, 6-8R depending on roughness of pavement. Urethane front anti-roll bar bushings. Good alignement. 225/50 Kumhos with 40-42psiF, 34-36psiR, cat-back, Amsoil air filter.

Chris Hartman www.subrew.com

[This message has been edited by subrew2 (edited February 19, 2001).]
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Old 02-19-2001, 02:51 PM   #5
SUV-ETR
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Location: Apple Valley, MN
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2000 Impreza 2.5RS
BRP

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While this is about to change, here's my setup.

Stock MY99 Impreza except for:
  • 205/55-16 BFG g-Force R1 (38psi front, 25psi rear...believe it or not)
  • Schroth Rally-4 harness

With the exception of the absurdly low rear air pressure, I've been running this setup for about a year with excellent local results. The rear air pressure was recommended to me by rennmaxi (on the SE Forum), and I was surprised to find that it worked well. My first national-caliber event was last weekend, and this setup was good for 6th place at the Ft. Myers ProSolo.

Here's the short-term plan for upgrades:
  • K&N filter
  • KYB AGX struts & autocross-friendly alignment (TBD)
  • Brake pads (TBD...SPO?) & Castrol GTLMA fluid
  • Exhaust (TBD...Stromung?)
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Old 02-19-2001, 04:52 PM   #6
Andre Vandenberg
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1998 2.? RS Turbo ;)
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Setup I ran this past weekend in Street Mod

20mm rear bar (Thanks SPD)

KYB agx's with H&R springs 4fnt and 6 rear
1/2 deg neg camber in rear 0 toe in rear
5 deg Neg camber front (Cusco camberplates) 0 toe. STI 4 puck front brakes (Thanks Trey)

Hoosier 205 45 16 42lbs fr and 38lbs rear(Thanks Hoosier)

GAB Modified front strut towerbar (Thanks Flatline Motorsports)

0.8 bar boost (Thanks Minnam and Trey)

If I had the Kartboy shifer bushings in, I know I would have posted an even faster time since I spent a LOT of time up shifting and down shifting (2nd and 3rd) and missed a couple of times on my last (fastest) run, but that would have meant me beating my sponsor by an EVEN bigger margian (Thanks Kartboy Kustoms)
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Old 02-20-2001, 05:13 AM   #7
omahasubaru
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2002 Legacy

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I run in STS, but beleive it or not, have now suspension mods except for an 18mm rear bar and whiteline links. 2.25" midpipe and STi back box, Amsoil filter, Bridgestone RE730's stock size 205/55/16. This season so far will have sabelt harnesses, Goodridge SS brakelines (hope to add newer brake pads), short shifter, and really hope to get a suspension very soon, probablly just go with FHI version 5/6 and want to bump up to a 20mm rear bar.

I'm planning a good alinement set-up too once I decide if I'm going to upgrade the suspension or not.

Thanks - Jon
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Old 02-20-2001, 09:57 AM   #8
Opie
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I am running in STS again this year on this setup:
KYB/AGX set to 3/7
Tein S-Tech Springs
Goodyear Eagle F1 tires (205/55ZR16) 48psi - front, 40psi rear
Cusco front strut bar
Cusco rear strut bar
Cusco rear lower tie bar
Cusco shifter bushings
FHI 20mm rear sway bar
K&N Filter
SPT/Brospeed Performance Exhaust w/intermediate pipe
Factory alignment settings

I placed 1st in STS in my region last year and took 3rd this past weekend in my first ProSolo event. More important than any of these mods however, is the experience I've gained while competeing. All the mods in the world won't make you a better driver .

Opie
<FONT COLOR="Red">RIP #3</FONT c>

[This message has been edited by Opie (edited February 20, 2001).]
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Old 02-20-2001, 08:30 PM   #9
AutoXr
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Glad to see the participation in this thread. I wasn't sure that I would see much.

It looks like the KYB AGX's are a favorite. I have them on my '99 Miata and since I see that they work well on Subarus, will probably go the same route when I get my WRX.

I won B-Stock last year in the local SCCA championship and came in fourth overall with the Porsche Club. I agree with you Opie, experience is a great thing which has no substitute.

I am excited about the WRX for competition since it leaves the Miata to my wife (not that it isn't fun). The past 2 years we have been doubling up on the Miata at events. No breakdowns yet, and I hope it stays that way. Tires are a different story
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Old 02-20-2001, 08:42 PM   #10
Scooby South
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Chapter/Region: MWSOC
Location: 2013 STX National BRZ and a
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99 Ver6 Recreation
JDM Speedwagon 3 LSDs..:)

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Alooooooooha..Here is my setup...Going for a full assault on STS this year...

LEDA 24 way adjustable dampning and compression Coilovers. 375lb front 325lb rear 2.5 in spings
Cusco Front and Rear Strut Bars.
Cusco Lower Tie Bar
Whiteline 18-22mm Adjustable front bar
Whiteline 20-24mm Adjustable Rear Bar
Kartboy Solid Rear links
Whiteline Solid Front links
Stainless Braklines.
MRT Master Cylinder Support Brace
Endless pads
Cusco Adjustable Front Camber plates
Whiteline Adjustable Rear Camber bolts
Auto X Alignment

Have to wait to see how she does...This whole Suspension is new

My old system...
20mm rear Bar
H&R Springs
Stock everything else

Other stuff.
Borla Header
2.5 in. Cat Back Exhaust
Simpson 5 Pt harness
TOYO T1S 205/50/16 on stock rims
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Old 04-17-2001, 05:31 PM   #11
WRXster
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Exclamation

Bump... as the year has progressed can anyone add to this? (Pablo are you listening... Trever has a new Trype R ... help?) I'll be trying my bone-bone-bone-stock WRX this weekend and although I have lots of autoX experience it's in a street prepared Fiat X1/9 and I don't expect much to carry over
With the RE92s I predict I'll have to run 48 lbs in front and 40 rear to promote rotation.
Eventual necessities will be left-foot braking and downshifting to 1st at 30 MPH. All at the same time
And "real" tires too of course, once I get extra rims
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Old 04-17-2001, 06:12 PM   #12
llonman
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97 Impreza OBS
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I am running STS this year. Here is my setup;
MY97 OBS
Amsoil air filter
v5 WRX wagon springs
AGX 4f/6r
Whiteline f/r endlinks
18MM sway bar
15" Legacy Alloys(pretty light) with 205/55/15 Kumho 712's 42f 38r (I am still sorting the pressure out)
Secrets of Solo Racing : Expert Techniques for Autocrossing and Time Trials..Henry A Watts. (great book!)


Lonnie

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Old 04-17-2001, 09:17 PM   #13
AutoXr
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Scooby South, what are you running for your alignment? I will be getting one done soon that is a good mix for street and AutoX.

Does anyone know where the best prices on AGX's is? It looks like a good choice, and I have had good luck with them on my Miata.
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Old 04-17-2001, 10:21 PM   #14
Scooby South
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Location: 2013 STX National BRZ and a
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99 Ver6 Recreation
JDM Speedwagon 3 LSDs..:)

Cool

aloooooooooha

to answer your question... Check here

As far as the AGX's...I think they are 389shipped or something like that...many Venders have them...Larry Ganz has a used set for sale if you check with him...

enjoy..
Scooby South
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Old 04-18-2001, 06:26 AM   #15
Molez93
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Location: Rochester, NY
Vehicle:
02 WRX
WR Blue

Arrow

No races yet this year. Last year's set-up was...
Street Mod baby! Street Mod!
- Minnam Turbo @ 7psi; ACT Street disk/plate (Rallispec rocks!!)
- CUSCO camber plates @ -4 deg front; 1/4" toe out
- GAB Gymkhana struts @ 1/1 (These are *too* stiff even at 1/1, but they are left over from my G-Stock days)
- Eibach Prokit Springs
- 20mm Rear bar
- Whiteline ALK and end links
- 16x7" Volk TE37 w/ BFG 225/50-16s all around (BTW- avoid these tires unless you hate feedback )
- Battery relocated to trunk
- STi 4-Pot brake kit w/SS lines
- Usual tire pressures: 45F/40R... I Think

Once Rallispec got the car running at full boost, the car (with me or my co-driver in it) started kicking a$$ locally. We'll see about this year.

In process for '01:
- BPM 1/2 Dog gear set: taller 1st & 2nd
- Quaife front and rear LSD
- STi HD Center diff
- ACT 6-puck race clutch
- Exedy chromeolly flywheel

I left off stuff like engine and tranny mounts, seats and belts, and other 'marginal' stuff like that.

-Scott 98 RS #04-SM

[This message has been edited by Molez93 (edited April 18, 2001).]
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Old 04-18-2001, 10:03 AM   #16
Jaxx
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The 93 Imp W/EJ20K
flat black

Post

my setup for this year (yet to run yet all 3 events have been cancled so far)

ver 5 struts
5zigen springs
20 mm sway bar
kunho 712 205/50/16

front -1 degree camber 1/16 toe out
rear stock camber no toe

ganzflow 5
k&n
cheepo axel back exaust (makes good noise)
sablet 3 point harness
front and rear strut tower bars (as if they do any thing)
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Old 04-18-2001, 01:24 PM   #17
Molez93
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Location: Rochester, NY
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02 WRX
WR Blue

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Blindeye:
- Filters are free. Use what you want as long as it fits in the OEM spot/location.
- If you can do it, left foot braking and heal-toe are BOTH worth using depending on the situation. All I say for sure is that if you can do them both equally well, use your best judgement. If not, use that which you're least likely to screw-up. FWIW- I've found left foot braking most useful during turns that involve low to mid RPMs on turbo cars. Keeping boost up in those instances enables you to get back into the powerband sooner after the apex.
(BTW- Better drivers will probably offer more specific and insightful thoughts. )

- I'm using heal-toe on an autocross course most often when the down shift *isn't* immediately before
a) sweeping turn or
b) a lower power/throttle section

-Scott
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Old 04-18-2001, 06:03 PM   #18
Joe Lee
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Location: Middlesex NJ USA
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2000 2.5RS Coupe
and a red 94 Miata!

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Here's my (low budget, wife approved) STS set-up:

FHI 20mm rear bar
Amsoil Drop-in filter
Alignment 1.5 neg front camber, max caster,
no front toe, 1 degree neg. rear camber
(you can get some if you try) 1/16" total
rear toe out.
Dunlop SP5000's 205/55/16 (51 psi front, 47 psi rear)
Sparco 4-Point harness
A couple novice schools

Seems like all you need as I've been very competitive. Too, I'm tied for first in our NASA region. Tires are wearing out right quick though...

P.S. Hey, Scoobysouth used my alignment reference! Thanks!

(edit for tire pressure)

[This message has been edited by Joe Lee (edited April 18, 2001).]
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Old 04-18-2001, 08:04 PM   #19
AutoXr
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Blindeye, drop-in filters are free, filters in general are not free in G Stock, i.e. you can only replace the filter and nothing surrounding it. In fact, you can completely take it out during competition if you'd like, although I recommend against it for obvious reasons.

Heel-and-toe and left-foot-braking are used for two different things.

Heel and toe is used when downshifting AND braking, usually while getting setup for a corner, but not yet turning. You blip the throttle to keep the car settled during clutch release into lower gear (1st from 2nd for instance).

Left foot braking is used for numerous reasons, but I use it to get extra speed in long sweepers. If a downshift is required getting setup for the sweeper, I probably heel and toe'd it. Left foot braking balances the car better through a turn by transitioning weight to the front wheels allowing them to bite better. Additionally, as Molex said, it keeps the turbo spooled much better through long constant throttle sweepers. When executed properly, it's a thing of beauty, allowing the back end to step out ever so slightly while remaining in complete control. Note - dont try this on public roads for the first time!!!!
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Old 04-19-2001, 12:24 AM   #20
Blindeye_03
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Is there any benefit of left foot breaking as opposed to heel-toe'ing?

would an amsoil filter be considered an engine mod?
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Old 04-19-2001, 12:46 AM   #21
RacerinLSL
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2011 Subaru WRX
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I've been told higher pressure in the rear will help induce oversteer and I didn't quite understand, but you guys are all going for less pressure in the rear in relation to the fronts. At my first race, on Dunlop sp5000 215/55/ZR16, I ran 40 up front and 42 rear and this did not help. I plowed pretty bad. Should I drop the rear to the mid 30's?

Chad

EDIT: Nevermind, I figured it out. Lower front pressures and higher rears are better to promote oversteer.

[This message has been edited by RacerinLSL (edited April 18, 2001).]
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Old 04-19-2001, 07:12 AM   #22
skidplatez
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2011 WRX Premium
Blackest Black

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CURRENT
Class: STS
Tires: Bridgestone RE730s
Rear Swaybar: Whiteline 18-22 adj.
Engine: Diy Intake, Torquemaster plugs, Magnecor wires, Castrol Syntec

FUTURE
Class: STS
Tires: Bridgestone SO-2 PP
Struts: DMS Gold
Swaybar Links: Whiteline
Exhaust: PI/STI (uk spec)
All else same

I am currently the STS points leader in Atlanta Region. I sucked last year, the most important thing in Autocross is being smooth! But my DMSs are in the mail

{EDIT} Forgot G-Force 5 point harnesses and the all important MOMO shift knob (possibly more important than driver skill)


[This message has been edited by skidplatez (edited April 19, 2001).]
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Old 04-19-2001, 07:37 AM   #23
ColinL
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'01 Erion CBR 929

Post

my setup is here for the most part. I use the standard 7kg/mm front and 6kg/mm rear springs (about 390/335). I run 225/50-16 Kumho V700s on 98 RS wheels.

I am still experimenting with alignment and camber. Currently:
front camber: -2.5 deg
front toe: 1/16th total toe out
rear camber: -1.2 deg
rear toe: neutral

Seems to work quite well so far... could use a spare 100 HP or two if anyone has it.
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Old 04-26-2001, 10:13 PM   #24
randychase
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2015
Zenos E10S

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Hi all. I currently do not own a WRX, but have some questions about buying one for use in AutoCross and ProSolo.

It appears that options are not an issue as far as competitiveness. I did see 17" rims as an option. Anyone running those, or taking them to events for gearing changes?

Anything else I should know?

Thanks!
Randy Chase http://www.conecam.com/
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Old 04-26-2001, 10:49 PM   #25
AutoXr
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The 17" wheels are a dealer installed option and are not available for competition in the stock class. I purchased a set of 17's and will be using them in DSP, but have not had a chance to try them out yet (snow is still melting).
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