Welcome to the North American Subaru Impreza Owners Club Thursday April 17, 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 > Autocross

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 06-04-2009, 06:06 PM   #1
hklatte
Scooby Newbie
 
Member#: 131234
Join Date: Nov 2006
Chapter/Region: SWIC
Location: Mesa, AZ
Vehicle:
2007 WRX Wagon
White

Default Use of Handbrakes?

Is handbrake turns very bad to our subies?

Wondering if anyone uses handbrakes frequently when autox'ing...
* Registered users of the site do not see these ads.
hklatte is offline   Reply With Quote
Old 06-04-2009, 06:11 PM   #2
REX8
*** Banned ***
 
Member#: 24038
Join Date: Sep 2002
Chapter/Region: South East
Location: Godspeed Cale...
Default

Quote:
Originally Posted by hklatte View Post
Is handbrake turns very bad to our subies?

Wondering if anyone uses handbrakes frequently when autox'ing...
There aren't corners tight enough in autox to warrant even the consideration of using the handbrake. Maybe some ProSolo guys at the start-line...

Static friction > sliding

Last edited by REX8; 06-04-2009 at 06:28 PM.
REX8 is offline   Reply With Quote
Old 06-04-2009, 07:14 PM   #3
CamaroFS34
Scooby Guru
 
Member#: 6850
Join Date: May 2001
Chapter/Region: MAIC
Location: SoBWI, MD
Vehicle:
Lots of ESP cars
'06 IAG WRX & LT1 Z28s :)

Default

Quote:
Originally Posted by REX8 View Post
Maybe some ProSolo guys at the start-line...
That's about it for me.
CamaroFS34 is offline   Reply With Quote
Old 06-04-2009, 10:06 PM   #4
JamesWilson2
ForumWars Winner!
 
Member#: 196948
Join Date: Dec 2008
Chapter/Region: TXIC
Location: Houston, TX
Vehicle:
2012 WRX SWP
TexasRallysport

Default

Yup, just for ProSolo starts where the car may roll in/out of the lights.

Otherwise-- *facepalm* to the guys who do it on course.
JamesWilson2 is offline   Reply With Quote
Old 06-05-2009, 08:22 AM   #5
Sylvain b
Scooby Newbie
 
Member#: 43330
Join Date: Sep 2003
Chapter/Region: E. Canada
Location: Quebec city, Canada.
Vehicle:
1993 Impreza L
Titanium grey

Default ...

I did some test two years ago in a parking lot (not an event). For ONE airpin on a single cone, the handbrake could save 0.25 sec very easy.

But you have to do it perfectly, have some power (sti at least) and good grip.

For any other type of turn it will not be the fastest way around.
Sylvain b is offline   Reply With Quote
Old 06-05-2009, 08:30 AM   #6
maxQ
Scooby Newbie
 
Member#: 2446
Join Date: Sep 2000
Location: limbo
Vehicle:
'04 insert acronyms
background

Default

I used the handbrake at the last DC Prosolo for more than the start line!!!!

Of course, I was going straight at the time and was trying to figure out why the car seemed a bit slow.
maxQ is offline   Reply With Quote
Old 06-05-2009, 01:37 PM   #7
PKer
Scooby Specialist
 
Member#: 27647
Join Date: Oct 2002
Chapter/Region: SCIC
Location: 69 Datsun SPL311
Vehicle:
89 Civic-STC 03WRX
(ret), 08 Titan-Tow

Default

Quote:
Originally Posted by maxQ View Post
I used the handbrake at the last DC Prosolo for more than the start line!!!!

Of course, I was going straight at the time and was trying to figure out why the car seemed a bit slow.
Been there...man it sucks
PKer is offline   Reply With Quote
Old 06-05-2009, 01:46 PM   #8
Patrick L
Scooby Specialist
 
Member#: 634
Join Date: Dec 1999
Chapter/Region: TXIC
Location: Tulsa, OK
Vehicle:
2000 Impreza 2.5RS
Becasue ITS racecar

Default

If you like your center diff. I would suggest not doing e-brake turns on pavement with the 5 Speeds. I have seen several trannies come to me with problems with the center diffs giving out. Mainly the snap ring on the back of the diff that holds the LSD pack & spider gears in place. It can pop out and then some times lodge themselves in between the setup gears in the tail section of the transfer case. In one case, it destroied the gears and bearings in the tail section along with having to buy a new center diff.

BTW, I rebuild trannies on a regular basis.
Patrick L is offline   Reply With Quote
Old 06-05-2009, 01:57 PM   #9
mccanixx
Scooby Specialist
 
Member#: 60566
Join Date: Apr 2004
Chapter/Region: SCIC
Location: San Diego, Ca.
Vehicle:
2002 WRX Unicorn
2001 Legacy L 2005 XT 5sp

Default

Quote:
Originally Posted by maxQ View Post
I used the handbrake at the last DC Prosolo for more than the start line!!!!

Of course, I was going straight at the time and was trying to figure out why the car seemed a bit slow.
Quote:
Originally Posted by PKer View Post
Been there...man it sucks
Duct tape the button down FTW.
mccanixx is offline   Reply With Quote
Old 06-05-2009, 02:02 PM   #10
Patrick L
Scooby Specialist
 
Member#: 634
Join Date: Dec 1999
Chapter/Region: TXIC
Location: Tulsa, OK
Vehicle:
2000 Impreza 2.5RS
Becasue ITS racecar

Default

If can't duct it...F*** it. lol!
I have done that before.
Patrick L is offline   Reply With Quote
Old 06-05-2009, 02:03 PM   #11
Sylvain b
Scooby Newbie
 
Member#: 43330
Join Date: Sep 2003
Chapter/Region: E. Canada
Location: Quebec city, Canada.
Vehicle:
1993 Impreza L
Titanium grey

Default ...

Quote:
Originally Posted by Patrick L View Post
If you like your center diff. I would suggest not doing e-brake turns on pavement with the 5 Speeds. I have seen several trannies come to me with problems with the center diffs giving out. Mainly the snap ring on the back of the diff that holds the LSD pack & spider gears in place. It can pop out and then some times lodge themselves in between the setup gears in the tail section of the transfer case. In one case, it destroied the gears and bearings in the tail section along with having to buy a new center diff.

BTW, I rebuild trannies on a regular basis.
DCCD are supposed to be ok!?

And what is good is when take a U-turn with the handbrake, all 4 wheel are still rotation at a very slow speed. So you can put the first gear without problem.

And it is good to modify the handbrake to be able to release it without holding the button.
Sylvain b is offline   Reply With Quote
Old 06-05-2009, 02:05 PM   #12
pete_falcone
Scooby Specialist
 
Member#: 123330
Join Date: Aug 2006
Chapter/Region: Tri-State
Location: Apalit
Vehicle:
13 Villena, 02 CVC
747 Philippine Airlines

Default

Only time I've used handbrake on an Auto-X was to launch the car on an incline. And that was before I got used to heel-toeing.
pete_falcone is offline   Reply With Quote
Old 06-06-2009, 06:25 PM   #13
Mr.Krinkle
Scooby Specialist
 
Member#: 109623
Join Date: Mar 2006
Chapter/Region: MAIC
Location: Waynesboro, VA
Default

I've done it twice in a local event during test and tune to see how it would work. 1st time screwed me all up,2nd time was I didn't feel comfortable enough to try it in my runs.
Mr.Krinkle is offline   Reply With Quote
Old 06-07-2009, 12:54 PM   #14
573
Scooby Specialist
 
Member#: 144821
Join Date: Mar 2007
Chapter/Region: MWSOC
Location: Troy, Michigan
Vehicle:
1994 LS1 Miata
2015 white WRX

Default

I asked a similar question on dirtyimpreza and got some good input. http://www.dirtyimpreza.com/forums/s...ad.php?t=10225

The general consensus is that you shouldn't do it if it can be avoided. This is more rallyx than autox, but they suggested pendulum turns and left foot braking as an alternative. Of course, if you have an sti, your center diff opens up when you pull it so you can do it all you want with no ill effects, at least for the center diff. If you do it a lot, you will burn through the shoes for your hand brake in no time.
573 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
geographical breakup of use of soda, pop, or coke stuttgart Off-Topic 29 09-10-2008 01:00 PM
Using the handbrake? TheKryptKeeper General Community 39 07-10-2006 02:17 PM
what used car to buy for use of 1.5 yrs with little depriciation hit? friedbbq Off-Topic 11 10-16-2005 06:33 PM
What's the use of the B28 in the 04 STi cluster used for? V6 Electrical & Lighting 1 08-08-2005 04:12 AM
"pr0n": An anagram of "porn," possibly indicating the use of pornography WRXVT Off-Topic 17 03-05-2005 03:44 PM


All times are GMT -4. The time now is 01:23 AM.


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.