Welcome to the North American Subaru Impreza Owners Club Sunday September 22, 2019
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 01-15-2014, 04:29 PM   #926
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Technically the subframe rule is to allow for engine mounting, and its intended for engine swaps but that isnt in the word of the rules. Pretty much how the rule is written is that if your engine mounts to the subframe you can change sub frames.
* Registered users of the site do not see these ads.
Leafy is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 01-15-2014, 05:17 PM   #927
willub
Scooby Newbie
 
Member#: 245695
Join Date: May 2010
Chapter/Region: NESIC
Location: MA
Vehicle:
04 STi
silver

Default

Hey Sig, it says that beatrush subframe only works with the beatrush ALK, which isn't SM legal. Don't know how true that is, just something to look into. Also, the engine doesn't mount to the subframe (or at least the part that you're replacing) so it may be illegal altogether.

I have the same issue with the rust. Im just gonna sand/wire wheel everything and rustoleum it.

Last edited by willub; 01-15-2014 at 05:33 PM.
willub is offline   Reply With Quote
Old 01-15-2014, 05:31 PM   #928
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

The engine doesnt mount to the subframe? Pretty sure mine does. There is like 3 different frame things down there though. The U frame, the sub frame, and the steering rack cover. I had my U frame out and patched a few rust holes in it near the front.
Leafy is offline   Reply With Quote
Old 01-15-2014, 05:54 PM   #929
willub
Scooby Newbie
 
Member#: 245695
Join Date: May 2010
Chapter/Region: NESIC
Location: MA
Vehicle:
04 STi
silver

Default

Quote:
Originally Posted by Leafy View Post
The engine doesnt mount to the subframe? Pretty sure mine does. There is like 3 different frame things down there though. The U frame, the sub frame, and the steering rack cover. I had my U frame out and patched a few rust holes in it near the front.
Yeah I edited my post to clear that up. That beatrush piece doesn't replace the engine cradle/subframe, where the motor mounts are, unless I'm missing something.
willub is offline   Reply With Quote
Old 01-15-2014, 07:06 PM   #930
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
Dusty

Default

At this point, it sounds like finding a stock one is your best bet to not worry.

Also, how are you planning on going national when you're in HI? Just curious if you'd be shipping the car somewhere.
subydude is offline   Reply With Quote
Old 01-15-2014, 08:35 PM   #931
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

The "U" frame is the subframe.

The engine mounts to the "crossmember."

I'd just find another stock one. The Beatrush would work you just need spacers to lower the subframe, and of course have to ballast it up to the stock weight somehow... The Whiteline ALK comes with spacers for that reason.
dwx is offline   Reply With Quote
Old 01-15-2014, 09:35 PM   #932
Squidz
Scooby Guru
 
Member#: 142608
Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default

Quote:
Originally Posted by dwx View Post
The "U" frame is the subframe.

The engine mounts to the "crossmember."

I'd just find another stock one. The Beatrush would work you just need spacers to lower the subframe, and of course have to ballast it up to the stock weight somehow... The Whiteline ALK comes with spacers for that reason.
Actually, according to Subaru the U-brace is just that....a "U-Brace". The Crossmember is what the engine bolts to.

Subframe and Crossmember are synonyms. However, the aftermarket has taken to calling the U-brace a Subframe...incorrectly.

According to the information i got from the national office, replacing the u-brace falls under the chassis stiffening rule, it would be like adding a cross brace. Thus, illegal for SM.
Squidz is offline   Reply With Quote
Old 01-15-2014, 10:09 PM   #933
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

No, Subaru actually calls it a subframe, hence the reason everyone has called it a subframe for the last 13 years...

http://subaruparts.com/parts/2002/SU...agramCallOut=1

Might want to tell Subaru they named the part wrong in all of their parts lists and diagrams.

Good to know on the legality of it though. I wasn't sure since the Beatrush doesn't seem to have any lateral additions or extra cross bracing like most of the others do, it's just a U.
dwx is offline   Reply With Quote
Old 01-15-2014, 10:24 PM   #934
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
Dusty

Default

Even if you could replace it with an aftermarket you'd be stupid to do so. Either buy the tubing and weld it yourself then ballast to weight, or find one in a junk yard/online. There is no reason to spend $$$ on something like this when the OE piece is just fine.
subydude is offline   Reply With Quote
Old 01-15-2014, 11:06 PM   #935
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

How badly could yours be rusted anyways. You're from hawaii, I'm from a rust belt state and mine has lived life as a winter beater. I had some rust, most of it came off with an angle grinder with a wire cup wheel on it, in a couple spots it wore all the way through and I patched it with some random steel.
Leafy is offline   Reply With Quote
Old 01-16-2014, 07:49 PM   #936
Squidz
Scooby Guru
 
Member#: 142608
Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default

Quote:
Originally Posted by dwx View Post
No, Subaru actually calls it a subframe, hence the reason everyone has called it a subframe for the last 13 years...

http://subaruparts.com/parts/2002/SU...agramCallOut=1

Might want to tell Subaru they named the part wrong in all of their parts lists and diagrams.

Good to know on the legality of it though. I wasn't sure since the Beatrush doesn't seem to have any lateral additions or extra cross bracing like most of the others do, it's just a U.
The 2003 parts book i have from when i worked at Subaru of Dallas listed it as a u-brace. But after closer inspection at the top of the page...it is under the heading of subframe.

Sorry, my mistake.

Either way, i agree that there is no reason to upgrade something like this is you are simply going to have to make it the same weight. The whole point of the aftermarket ones is that they are lighter. However...technically it could be legal if it weighed the same and didn't add any extra lateral or cross supports.
Squidz is offline   Reply With Quote
Old 01-16-2014, 11:45 PM   #937
sigterm
Scooby Newbie
 
Member#: 264104
Join Date: Nov 2010
Chapter/Region: HIIC
Location: Hawaii
Vehicle:
05 STi
CGM

Default

Quote:
Originally Posted by subydude View Post
At this point, it sounds like finding a stock one is your best bet to not worry.

Also, how are you planning on going national when you're in HI? Just curious if you'd be shipping the car somewhere.
Yea, I'm guessing a stock one will do fine for now, I came across a friend of mine that was selling one so I figured I'd throw it out there and see if I'd have to undo it later on.

As for shipping out of Hawaii...
Not this year but next yes. Socal region.
sigterm is offline   Reply With Quote
Old 01-16-2014, 11:47 PM   #938
sigterm
Scooby Newbie
 
Member#: 264104
Join Date: Nov 2010
Chapter/Region: HIIC
Location: Hawaii
Vehicle:
05 STi
CGM

Default

Quote:
Originally Posted by Leafy View Post
How badly could yours be rusted anyways. You're from hawaii, I'm from a rust belt state and mine has lived life as a winter beater. I had some rust, most of it came off with an angle grinder with a wire cup wheel on it, in a couple spots it wore all the way through and I patched it with some random steel.
It's actually a New Jersey car that was transplanted. I'm pretty sure that it's seen it's share of salty winter roads. The rear was absolutely horrible, but I've replaced/grinded/painted all of it over the last year. I'll see if I can snap a pic but take my word for it. "Nasty" and "Terminal Cancer" come to mind when I envision it.
sigterm is offline   Reply With Quote
Old 01-17-2014, 07:16 AM   #939
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Sounds like a chassis swap would make more sense.
Leafy is offline   Reply With Quote
Old 01-17-2014, 12:45 PM   #940
sigterm
Scooby Newbie
 
Member#: 264104
Join Date: Nov 2010
Chapter/Region: HIIC
Location: Hawaii
Vehicle:
05 STi
CGM

Default

I'm not that bold as much as I'd like to think so.
sigterm is offline   Reply With Quote
Old 01-17-2014, 12:47 PM   #941
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

But a chassis swap is easy. You already put all the parts on the current car, so you know how to do it, you just take them all off and put them on a new car. Then take the stock parts from the new car and put them on the old chassis, then sell the old chassis.

Then you get to the feature creep part of, "if I'm gonna go through all the work to chassis swap, I should go to an early 90's impreza L chassis..."
Leafy is offline   Reply With Quote
Old 01-17-2014, 01:02 PM   #942
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
Dusty

Default

Quote:
Originally Posted by Leafy View Post
But a chassis swap is easy. You already put all the parts on the current car, so you know how to do it, you just take them all off and put them on a new car. Then take the stock parts from the new car and put them on the old chassis, then sell the old chassis.

Then you get to the feature creep part of, "if I'm gonna go through all the work to chassis swap, I should go to an early 90's impreza L chassis..."
Is it bad that I've considered doing that, and I already have what people consider to be the "light swap"

The frame on mine is ok, and I stopped the rust, but there are bits and pieces that could only be fixed by going to an earlier chassis. Maybe if mine proves to be "good" and I have a year or two of rest I'll do it, but until then...just keep on trucking.
subydude is offline   Reply With Quote
Old 01-20-2014, 05:40 PM   #943
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

From the draft of the latest fast track, this is part of a proposed rule addition to the definitions section.

"Subframe/Cross Member – A component welded or bolted to the frame/tub/chassis of a car in order to increase its
strength and which may serve as a platform for mounting suspension or drive train components.
"

So IMO whatever the **** the subaru documents call it wont matter if this gets added to the rules.
Leafy is offline   Reply With Quote
Old 01-27-2014, 02:03 PM   #944
Squidz
Scooby Guru
 
Member#: 142608
Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default

Doesn't matter what subaru calls it anyway. I already tried the argument that it's not a "subframe" with copies of my parts book for proof.

Lol, they didn't go for it either.
Squidz is offline   Reply With Quote
Old 01-27-2014, 04:48 PM   #945
k-dogg
Scooby Newbie
 
Member#: 115961
Join Date: May 2006
Location: Lake Tahoe, NV
Vehicle:
2005 Wide STi Wagon
WR BLUE

Default

Have there been any updates regarding fender braces? Are they still illegal to upgrade?
k-dogg is offline   Reply With Quote
Old 01-27-2014, 05:32 PM   #946
subydude
Scooby Guru
 
Member#: 80649
Join Date: Jan 2005
Chapter/Region: South East
Location: Columbia, SC
Vehicle:
2000 2.5 Auto-X RSTi
Dusty

Default

Quote:
Originally Posted by k-dogg View Post
Have there been any updates regarding fender braces? Are they still illegal to upgrade?
Still illegal.
subydude is offline   Reply With Quote
Old 01-27-2014, 05:45 PM   #947
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by subydude View Post
Still illegal.
No one cares.

If you're not running hoosiers who cares if you have fender braces you wont win anyways.
Leafy is offline   Reply With Quote
Old 01-27-2014, 05:52 PM   #948
k-dogg
Scooby Newbie
 
Member#: 115961
Join Date: May 2006
Location: Lake Tahoe, NV
Vehicle:
2005 Wide STi Wagon
WR BLUE

Default

Quote:
Originally Posted by subydude View Post
Still illegal.
Thought so, but wanted to check as I seem to miss all of the updates.
k-dogg is offline   Reply With Quote
Old 01-28-2014, 03:15 PM   #949
Squidz
Scooby Guru
 
Member#: 142608
Join Date: Mar 2007
Chapter/Region: TXIC
Location: Cute fuzzy cuddly kitten hell.
Vehicle:
2003 Sonic Yellow
Marginally well behaved.

Default

Quote:
Originally Posted by Leafy View Post
No one cares.

If you're not running hoosiers who cares if you have fender braces you wont win anyways.
That's not exactly true. There have been plenty of championships won on tires other than Hoosiers.
Squidz is offline   Reply With Quote
Old 01-28-2014, 03:27 PM   #950
Leafy
Scooby Specialist
 
Member#: 330625
Join Date: Aug 2012
Chapter/Region: NESIC
Location: MA
Vehicle:
2006 WRX
WRB

Default

Quote:
Originally Posted by Squidz View Post
That's not exactly true. There have been plenty of championships won on tires other than Hoosiers.
Sure, but this year, there's two tires with a shot the A6 or A7 (depending on which one ends up being faster) and the R1S.
Leafy 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
Will my trans swap put me automatically in Street Mod? RebelINS Autocross 6 07-22-2013 05:24 PM
I'm still legal for Street Mod right?(list inside) Davenow Motorsports 4 05-24-2003 03:21 AM
street mod tire question Jaxx Motorsports 2 02-20-2003 07:59 PM
Autocross class... Street Mod? Motohead1 South East Region Forum 11 06-26-2001 10:11 AM
Street Mod news Eric Technical Forum Archive 5 05-31-2000 02:33 PM

All times are GMT -4. The time now is 04:12 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.