Welcome to the North American Subaru Impreza Owners Club Saturday July 12, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC General > Motorsports

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 12-07-2008, 09:31 PM   #1
venom79
Scooby Newbie
 
Member#: 93544
Join Date: Aug 2005
Chapter/Region: International
Location: Lima, Peru
Vehicle:
2011 Nissan GTR
Black

Default Mods for Autocross

Hello,

I would like your recommendation on what else to modify on my car to get the best performance for autocross.

As far as now I have the following mods on my 2006 STI:

1) HKS Turbo back exhaust
2) Ecutek reflash programmed ECU
3) HKS Hypermax coilovers
4) Cobb SF Intake system with airbox
5) Front and Rear Whiteline Swaybars
6) Whiteline Antilift kit
7) DBA slotted rotors
8) Perrin Silicone Turbo Inlet (From Turbo to Intake)
9) Hossier Autox Tires

I am thinking on a turbo change (does not know which one will be the best for autox), but that is the only mod i have in mind... any recommendation will be kindly appreciated.

William
* Registered users of the site do not see these ads.
venom79 is offline   Reply With Quote
Old 12-07-2008, 10:09 PM   #2
hipower
Scooby Newbie
 
Member#: 155756
Join Date: Aug 2007
Chapter/Region: VIC
Location: abbotsford b.c
Vehicle:
369 tribeca 7 pass
vf34wrx,06 sti,08cbr600rr

Default

you forgot the endlinks
hipower is offline   Reply With Quote
Old 12-07-2008, 10:11 PM   #3
MrSlowbaru
Scooby Specialist
 
Member#: 129231
Join Date: Oct 2006
Chapter/Region: Tri-State
Location: Long Island NY
Vehicle:
2005 wrx
cgm

Default

weight reduction time
MrSlowbaru is offline   Reply With Quote
Old 12-07-2008, 10:15 PM   #4
mla163
Scooby Specialist
 
Member#: 104922
Join Date: Jan 2006
Chapter/Region: MAIC
Location: NoVA
Vehicle:
2013 BRZ

Default

this thread should move over to motorsports

You should build your car for a certain class if you want to be competitive. I think you are already in ESP (I think) if you're running in SCCA, though I don't know what the rules are in Peru.

The best advice is get some seat time under your belt before you start modifying anything. For autocross, your car is more than set up. When you find guys in stock miatas beating you, you'll know that you need more practice than mods.

Go to a few races, then re-evaluate. That car has plenty of room for growth
mla163 is offline   Reply With Quote
Old 12-07-2008, 10:17 PM   #5
skoobywrx
Scooby Specialist
 
Member#: 28088
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
05 WRB STi
06 Outback

Default

in this order

1) seat time
2) seat time
3) seat time
4) tires
5) pads
6) sway, springs
skoobywrx is offline   Reply With Quote
Old 12-07-2008, 10:26 PM   #6
Jack
Add Lightness
Moderator
 
Member#: 13699
Join Date: Dec 2001
Chapter/Region: NESIC
Location: Hopkinton, MA
Vehicle:
2007 Lotus Elise
(From General)

Default

Quote:
Originally Posted by skoobywrx View Post
in this order

1) seat time
2) seat time
3) seat time
4) something
5) something
6) something
fixed that for you. I believe the something is....um






















































seat time


jack
Jack is offline   Reply With Quote
Old 12-07-2008, 10:31 PM   #7
skoobywrx
Scooby Specialist
 
Member#: 28088
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Seattle, WA
Vehicle:
05 WRB STi
06 Outback

Default

^oh yeah i forgot more seat time
skoobywrx is offline   Reply With Quote
Old 12-07-2008, 10:51 PM   #8
S1MPSONS
Scooby Specialist
 
Member#: 90357
Join Date: Jul 2005
Chapter/Region: Tri-State
Location: www.HamfistRacing.com / NYC
Vehicle:
2006 Corey's EVO
& 1993 Mazda RX7

Default

Check with your local sanctioning body there in Peru (your hometown according to your user info) regarding modification allowances and classing.
S1MPSONS is offline   Reply With Quote
Old 12-07-2008, 11:45 PM   #9
venom79
Scooby Newbie
 
Member#: 93544
Join Date: Aug 2005
Chapter/Region: International
Location: Lima, Peru
Vehicle:
2011 Nissan GTR
Black

Default

thanks for all advice...

In peru i run in the open/superior category, which as the name implies does not have any limit on modifications.

Most of the cars in this category are subaru sti, some evos, and a pair of cellicas GT4.

Seat time is definitely top of my list...

regards
venom79 is offline   Reply With Quote
Old 12-07-2008, 11:51 PM   #10
venom79
Scooby Newbie
 
Member#: 93544
Join Date: Aug 2005
Chapter/Region: International
Location: Lima, Peru
Vehicle:
2011 Nissan GTR
Black

Default

if you want to know more about autox in peru you can enter to our club page

www.clubimprezaturboperu.com, it is in spanish, but it is a very user friendly page...


and, thank god i do not get beaten by miatas, we do not even have those cars here, hehehe. I usually end 6th-4th of a total of 60 cars... the top 3 drivers are guys that have been autocrossing for more than 5 years, I just have two years doing it...

regards
venom79 is offline   Reply With Quote
Old 12-08-2008, 06:23 AM   #11
inmledoml23
Scooby Newbie
 
Member#: 169483
Join Date: Jan 2008
Location: Naples, FL
Vehicle:
2004 WRX STI
PSM

Default

Quote:
Originally Posted by venom79 View Post
...and, thank god i do not get beaten by miatas, we do not even have those cars here, hehehe.
No Darrin DiSimo down there? You are lucky, in many ways.
inmledoml23 is offline   Reply With Quote
Old 12-08-2008, 08:16 AM   #12
Scooby South
Subtly Outspoken
Moderator
 
Member#: 238
Join Date: Sep 1999
Chapter/Region: MWSOC
Location: 2013 Limited SWP BRZ and a
Vehicle:
99 Ver6 Recreation
JDM Speedwagon 3 LSDs..:)

Default

Tell Kiko Hi...

Bill
Scooby South is offline   Reply With Quote
Old 12-08-2008, 09:04 AM   #13
neilschelly
Scooby Specialist
 
Member#: 94902
Join Date: Aug 2005
Chapter/Region: NESIC
Location: Merrimack, NH
Vehicle:
1988 911 Carrera 3.2
Silver

Default

Quote:
Originally Posted by mla163 View Post
You should build your car for a certain class if you want to be competitive. I think you are already in ESP (I think) if you're running in SCCA, though I don't know what the rules are in Peru.
The ALK takes him well above SP for SCCA rules. He'd be looking at Prepared or Modified - not sure which.
-N
neilschelly is offline   Reply With Quote
Old 12-08-2008, 09:06 AM   #14
piecemealBHC
Scooby Specialist
 
Member#: 106248
Join Date: Jan 2006
Chapter/Region: NESIC
Location: New Hampshire
Vehicle:
2011 WRX OBP
2000 RS 2.5

Default

how about stainless brakelines?
piecemealBHC is offline   Reply With Quote
Old 12-08-2008, 09:11 AM   #15
KC
Scooby Guru
 
Member#: 442
Join Date: Oct 1999
Chapter/Region: NESIC
Location: SE Mass/RI
Vehicle:
2013 Crosstrek XV
00 Honda S2000

Default

Quote:
Originally Posted by Scooby South View Post
Tell Kiko Hi...

Bill
Ditto.
KC is offline   Reply With Quote
Old 12-08-2008, 09:28 AM   #16
neilschelly
Scooby Specialist
 
Member#: 94902
Join Date: Aug 2005
Chapter/Region: NESIC
Location: Merrimack, NH
Vehicle:
1988 911 Carrera 3.2
Silver

Default

Oh yeah, and your car is already pretty well prepared for casual autocross. If you don't know what general area needs developing from here (suspension, brakes, power band, peak power, interior, tires/alignment, drivetrain), then it's time to get more seat time and just wait until you know where it needs more help.
-N
neilschelly is offline   Reply With Quote
Old 12-08-2008, 09:33 AM   #17
leecea
Scooby Guru
 
Member#: 37359
Join Date: May 2003
Vehicle:
2003 WRX

Default

Quote:
Originally Posted by venom79 View Post
thanks for all advice...

In peru i run in the open/superior category, which as the name implies does not have any limit on modifications.

Most of the cars in this category are subaru sti, some evos, and a pair of cellicas GT4.

Seat time is definitely top of my list...

regards
Interesting. A no limits autox class. Probably could start with a look at the specs for national level SCCA SM class STis. Then gut as much weight out of the car as you desire, based on whether this is a dual purpose car or trailer car.

I tried to find a good SM setup thread for you, but 'search' isn't good with terms like "SM" I'm sure someone can point to one.
leecea is offline   Reply With Quote
Old 12-08-2008, 09:45 AM   #18
neilschelly
Scooby Specialist
 
Member#: 94902
Join Date: Aug 2005
Chapter/Region: NESIC
Location: Merrimack, NH
Vehicle:
1988 911 Carrera 3.2
Silver

Default

Quote:
Originally Posted by leecea View Post
Interesting. A no limits autox class. Probably could start with a look at the specs for national level SCCA SM class STis. Then gut as much weight out of the car as you desire, based on whether this is a dual purpose car or trailer car.
As far as I know, the ALK in SCCA classing takes him beyond SM too.
-N
neilschelly is offline   Reply With Quote
Old 12-08-2008, 10:23 AM   #19
leecea
Scooby Guru
 
Member#: 37359
Join Date: May 2003
Vehicle:
2003 WRX

Default

Quote:
Originally Posted by neilschelly View Post
As far as I know, the ALK in SCCA classing takes him beyond SM too.
-N
Understood, but he is not in SM, he's in a no-limits class. I was just suggesting that, if he is looking for advice, SM car specs will give him a good idea of what mods work at relatively high prep levels, while staying kinda streetable. He can do anything he wants beyond that too.
leecea is offline   Reply With Quote
Old 12-08-2008, 01:40 PM   #20
68Cadillac
Scooby Specialist
 
Member#: 95901
Join Date: Sep 2005
Chapter/Region: SWIC
Location: Las Vegas, USA
Default

Quote:
Originally Posted by venom79 View Post
thanks for all advice...
In peru i run in the open/superior category, which as the name implies does not have any limit on modifications.
regards
No Limit on Modifications?

Sell the STi and buy one of the following:
1. F125 Kart



2. A Modified (a.k.a. AM or AMod) purpose built AutoX monsters
68Cadillac is offline   Reply With Quote
Old 12-08-2008, 04:14 PM   #21
Boxologist
Scooby Guru
 
Member#: 21118
Join Date: Jul 2002
Chapter/Region: Tri-State
Location: LI, NY
Default

Quote:
Originally Posted by venom79 View Post
Hello,

I would like your recommendation on what else to modify on my car to get the best performance for autocross.

As far as now I have the following mods on my 2006 STI:

1) HKS Turbo back exhaust
2) Ecutek reflash programmed ECU
3) HKS Hypermax coilovers
4) Cobb SF Intake system with airbox
5) Front and Rear Whiteline Swaybars
6) Whiteline Antilift kit
7) DBA slotted rotors
8) Perrin Silicone Turbo Inlet (From Turbo to Intake)
9) Hossier Autox Tires

I am thinking on a turbo change (does not know which one will be the best for autox), but that is the only mod i have in mind... any recommendation will be kindly appreciated.

William
how mush of a daily driver is your STi? If its rarely used it can be made very FAST3R.

Get some endlinks for your swaybars. brace the car. cusco rear stut tower bar(CF would be best) and V brace. some stronger fender braces for teh front. Stainless steel brakelines and some decent autoX pads.

lighten the car. change out the battery toa lightweight on and move that to the trunk. lightenweight flywheel and lose the stock front U brace for an H brace. if money no concern, carbon fibre driveshaft. maybe a set lightened pullies(NOT underdriven).

as for power, look for a twinscroll turbo setup if u can. get tuned for water/alcohol injection.

and drive A LOT
Boxologist is offline   Reply With Quote
Old 12-08-2008, 09:04 PM   #22
venom79
Scooby Newbie
 
Member#: 93544
Join Date: Aug 2005
Chapter/Region: International
Location: Lima, Peru
Vehicle:
2011 Nissan GTR
Black

Default

thank you very much guys... i will definitely keep in mind all of your recommendatios...

Scooby South and KC, I spoke with kiko today and give him your salute, he also says hi... I forgot to mention that he is also a very important coordinator of autocross in peru, if you want to check out his webpage is www.autoxperu.com.

boxologist, all your recommendations are great, thanks,... i am at the moment yet to decide if i change my turbo vf39 to a twin scroll, or if possible, sell my car and buy a JDM SPEC C RA, which is much more ligther than mine...

regards
venom79 is offline   Reply With Quote
Old 12-08-2008, 09:38 PM   #23
ButtDyno
Street's closed, pizza boy
 
Member#: 17301
Join Date: Apr 2002
Chapter/Region: MAIC
Location: Why do they always say the Evo
Vehicle:
is the "dark side"
06 Evo #7 STU, 03 IS300

Default

If you are in a no limits autocross class:

1. Seat time
2. Seat time
3. Seat time
4. You probably get it at this point
5. Big ****ing wheels with big ****ing tires
6. Everything else
ButtDyno is offline   Reply With Quote
Old 12-09-2008, 11:32 AM   #24
68Cadillac
Scooby Specialist
 
Member#: 95901
Join Date: Sep 2005
Chapter/Region: SWIC
Location: Las Vegas, USA
Default

+ on that seat time again.

I have been autocrossing for 3 1/2 years. Hundereds of runs. Dozens of courses. I'm finally to the point with my driving skill that I don't suck. I'm hoping one day to reach "good". It's a discipline and I can only learn one thing at a time.

One lesson I learned from a class I took: "Do not try and make up for your lack of driving skill by bolting parts onto your car."

Last edited by 68Cadillac; 12-09-2008 at 11:38 AM.
68Cadillac is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dedicated autocross tires and for autocross only. cid369 Tire & Wheel 16 01-11-2012 09:43 PM
mods vs autocross mgoss79 Newbies & FAQs 3 02-21-2008 08:36 PM
Next mods for autocrossing (STX) RawCode Brakes, Steering & Suspension 28 09-28-2007 11:34 AM
Looking For Safety Harness For Autocross JDEMETZ Interior & Exterior Modification 14 04-05-2005 12:12 AM
Help pick mods to autocross my 2.5GT WAFlowers Legacy Forum 19 07-02-2003 05:07 PM


All times are GMT -4. The time now is 07:34 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.