Welcome to the North American Subaru Impreza Owners Club Thursday March 28, 2024
Home Forums Images 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 10-18-2012, 09:14 AM   #26
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

Quote:
Originally Posted by Simmons-Racing View Post
You should have bought the FR-S if you wanted the lightweight

Simmons
Fixed it.
* Registered users of the site do not see these ads.
ABQautoxer is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-18-2012, 04:54 PM   #27
Simmons-Racing
Scooby Specialist
 
Member#: 274179
Join Date: Feb 2011
Chapter/Region: Tri-State
Location: Macungie, PA
Vehicle:
2013 Subaru BRZ
Blue

Default

Quote:
Originally Posted by Scooby South View Post
18lbs for the extra amenities???..I hear ya tho..

Bill

That's all it is? Rear spoiler, climate control, leather seats, fog lights, heated seats(maybe),......seems like more then 18lbs

My car weighed 2,645 lbs with everything stock, just autoX ready, no spare, tools, cup holder,.....


Simmons
Simmons-Racing is offline   Reply With Quote
Old 10-18-2012, 05:07 PM   #28
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

Bill was close, the published weight difference is 14lbs from Premium to Limited.

Edit: FR-S is 28lbs lighter than Premium from what I just found.
ABQautoxer is offline   Reply With Quote
Old 10-18-2012, 08:22 PM   #29
Scooby South
Subtly Outspoken
Moderator
 
Member#: 238
Join Date: Sep 1999
Chapter/Region: MWSOC
Vehicle:
OG05 STi
51E

Default

^^ Benefit of the doubt..
Scooby South is offline   Reply With Quote
Old 10-18-2012, 08:36 PM   #30
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

I weigh 165lbs so I figure that's light enough I could get a Limited.

The curb weights I've always seen published are the following:

FR-S: 2758
BRZ Premium: 2762
BRZ Limited: 2776

I think the heaviest additions on the Limited are the foglights and the seat heaters. The rest of it is negligible including the spoiler, it hardly weighs anything.

AVO weighed their BRZ RA when they got it and it was right around 2600 lbs without any weight reduction.

Last edited by dwx; 10-18-2012 at 08:47 PM.
dwx is offline   Reply With Quote
Old 10-20-2012, 10:29 AM   #31
WRautoXr
Scooby Newbie
 
Member#: 184071
Join Date: Jul 2008
Chapter/Region: MWSOC
Location: Detroit Region, MI
Vehicle:
2015 WRX
DGM

Default

Actually PTC seat heaters themselves are not heavy... With wiring and switches if you assume the seat itself is the same weight, you are probably only adding 1 lb, 1.5 lbs max for both seats and most of that is wiring.
WRautoXr is offline   Reply With Quote
Old 10-21-2012, 02:09 AM   #32
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

Quote:
Originally Posted by dwx View Post
AVO weighed their BRZ RA when they got it and it was right around 2600 lbs without any weight reduction.
I hope you meant 2700 otherwise I'm doing something very wrong. I weighed my Limited with 255 Star Specs, SSR Comps in 17x8, Perrin catback with resonator, Perrin pulley, and the spare/tools removed with 3/8 tank and came in at 2675lbs. Probably can get this down to 2625 pretty easy between less gas, lighter battery, lighter exhaust bits, but it will be harder for me to get under 2600lbs as expensive brakes and such are not in the budget anytime soon.
ABQautoxer is offline   Reply With Quote
Old 10-21-2012, 09:32 PM   #33
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

Well the RA has no AC, no radio, lighter glass, no spare or tools, 16" steel wheel with tiny tires, etc. My guess is 2600 is without much gas.
dwx is offline   Reply With Quote
Old 10-23-2012, 12:51 PM   #34
GTB/ZR-1
Scooby Newbie
 
Member#: 88127
Join Date: May 2005
Location: Winter Garden, FL
Vehicle:
2009 Datsun GT-R
Red

Default

I'm in...

0 option FR-S. I guess as light a variant that's available right now.

Let the modding begin!

Coilovers on deck...
17x9" square set--proper offset?
What's lightest legal exhaust system available? Header?
Any intake better than another?
I normally stick with stock bars.
GTB/ZR-1 is offline   Reply With Quote
Old 10-23-2012, 01:12 PM   #35
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

Honestly, read Scooby South's entire thread. It's long but will answer a lot of questions though you will probably have a few more:

http://forums.nasioc.com/forums/show....php?t=2314670
ABQautoxer is offline   Reply With Quote
Old 10-24-2012, 09:46 PM   #36
GTB/ZR-1
Scooby Newbie
 
Member#: 88127
Join Date: May 2005
Location: Winter Garden, FL
Vehicle:
2009 Datsun GT-R
Red

Default

I think I've settled on AST 4150s--trying to determine spring rate. Going to start there w/ rims/tires.

Airaid/Injen or K&N stock replacement?
GTB/ZR-1 is offline   Reply With Quote
Old 10-24-2012, 09:50 PM   #37
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

If you tune, you can do the Takada/Greddy which overall seem to perform better. Otherwise K&N/Perrin Drop-in.

Something around 350-500 front works, 350-400 rear seems to work too.
ABQautoxer is offline   Reply With Quote
Old 10-24-2012, 09:56 PM   #38
Scooby South
Subtly Outspoken
Moderator
 
Member#: 238
Join Date: Sep 1999
Chapter/Region: MWSOC
Vehicle:
OG05 STi
51E

Default

for Reference:

Quote:
The driver and front passenger seats may be replaced, with the following
restrictions: The seating surface must be fully upholstered.
The top of the seat, or an attached headrest, may not be below the
center of the driver's head. The seat, including mounting hardware,
must weigh at least 25 pounds and must be attached using the OE
body mounting holes/studs. Additional mounting points may be added.
Scooby South is offline   Reply With Quote
Old 10-28-2012, 05:16 PM   #39
GTB/ZR-1
Scooby Newbie
 
Member#: 88127
Join Date: May 2005
Location: Winter Garden, FL
Vehicle:
2009 Datsun GT-R
Red

Default

Okay, first outing...

Completely stock except new 245/40s on 17x9" Drag Lead Specials (8+ lbs total/corner over stockers), 325 mi, and a driver that's never owned a momentum car (coming from 600whp GT-R & boosted SM Evo/STIs) lol.

The clocks weren't working, so it was by stopwatch. Came in 2nd (to well-prepped/driven RX-8) & was credited w/ 36.2--I timed vid below & it was a 35.8--timing was ALL over the board, so I'm not putting any stock in results

First impressions are favorable. I think the car will come alive w/ mods...

Here's vid:


GTB/ZR-1 is offline   Reply With Quote
Old 10-28-2012, 06:14 PM   #40
04trailsti
Scooby Specialist
 
Member#: 179170
Join Date: May 2008
Chapter/Region: South East
Location: Behind the wheel
Vehicle:
2005

Default

The best way to prep for driving a car like a BRZ/FRS is to drive a heavy car like a STI ;-)
04trailsti is offline   Reply With Quote
Old 10-28-2012, 08:07 PM   #41
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

I feel like his old GTR counts. It's amazing how its tough to hop from WRX to BRZ. Usually I can do that between cars with little challenge but it takes several runs to get used to the BRZ in my case.
ABQautoxer is offline   Reply With Quote
Old 10-28-2012, 08:13 PM   #42
04trailsti
Scooby Specialist
 
Member#: 179170
Join Date: May 2008
Chapter/Region: South East
Location: Behind the wheel
Vehicle:
2005

Default

oh of course a GRT falls into that category. I love going to a well balanced f/r car after manhandling my sti, it feels effortless to drive. The BRZ gets better n better every time I drive one.
04trailsti is offline   Reply With Quote
Old 10-28-2012, 09:45 PM   #43
jprice130
Scooby Newbie
 
Member#: 288225
Join Date: Jul 2011
Chapter/Region: South East
Location: Harrisburg, NC
Vehicle:
2014 BRZ
WRB

Default

Quote:
Originally Posted by ABQautoxer View Post
It's amazing how its tough to hop from WRX to BRZ. Usually I can do that between cars with little challenge but it takes several runs to get used to the BRZ in my case.
It's really interesting to hear that because I didn't have a problem going from my WRX to my BRZ at all. I always felt like I was fighting my WRX all the time and had a tendency to over-drive it.

With the BRZ, I instantly felt smoother and more relaxed. I sometimes want to open my door, stick my leg out, and try to help the car along by kicking the ground like you would on a skateboard, but other than that, I can't complain at all. I guess you've probably been competing at higher levels than me with your WRX, so that's probably a factor.

I still have my WRX (it's been down for a few months) and am looking forward to trying it again after driving my BRZ all summer. I'm sure it will take me some getting used to, but hopefully it won't be too bad.
jprice130 is offline   Reply With Quote
Old 10-28-2012, 09:49 PM   #44
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

In my case I'm doing it at the same event.
ABQautoxer is offline   Reply With Quote
Old 10-28-2012, 11:08 PM   #45
jprice130
Scooby Newbie
 
Member#: 288225
Join Date: Jul 2011
Chapter/Region: South East
Location: Harrisburg, NC
Vehicle:
2014 BRZ
WRB

Default

Quote:
Originally Posted by ABQautoxer View Post
In my case I'm doing it at the same event.
Oh, I gotcha. I thought you meant going from the WRX in one event to the BRZ in the next event. I wasn't thinking about you doing it at the same event. I hope to do that soon, when my WRX is running again. Really curious to see the differences on the same course and how well I can switch between the two.
jprice130 is offline   Reply With Quote
Old 11-01-2012, 10:18 PM   #46
GTB/ZR-1
Scooby Newbie
 
Member#: 88127
Join Date: May 2005
Location: Winter Garden, FL
Vehicle:
2009 Datsun GT-R
Red

Default

So... Not trying to get off-topic, but--do any of you have possible long-term turbo/SM aspirations w/ the car?

Some of these turbo kits are well-done & I think the car could be a serious SM contender, if prepped properly.

I just can't stay away from HP--my opium! lol
GTB/ZR-1 is offline   Reply With Quote
Old 11-01-2012, 10:26 PM   #47
ABQautoxer
Scooby Specialist
 
Member#: 198231
Join Date: Dec 2008
Location: Albuquerque, NM
Vehicle:
2007 Not a Subaru

Default

Yes I really do want a whipple charger on this at some point but I don't think it will be setup for SCCA anymore at that point but who knows. I'm about to take a dip into the tune and E85 pool and see what that does.
ABQautoxer is offline   Reply With Quote
Old 11-02-2012, 02:54 PM   #48
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

Quote:
Originally Posted by GTB/ZR-1 View Post
So... Not trying to get off-topic, but--do any of you have possible long-term turbo/SM aspirations w/ the car?

Some of these turbo kits are well-done & I think the car could be a serious SM contender, if prepped properly.

I just can't stay away from HP--my opium! lol

I posted a few comments in the SM thread. I would maybe look at SM a couple years down the line. The original Accelerated Performance 300 kit with the GT28RS had a very flat torque curve with very little lag and on E85 could probably make 375WHP. Minimum weight would be 2480 without any tire restrictions although I think running 275/35/17 would be a good size so you could be less weight with the -200lb allowance for 275s.

I'm interested to see how the different supercharger kits look as well but I'm not sure they will make the kind of power you would need for the weight of the BRZ to be competitive in SM.

I have no doubt the car could be competitive in SM. It's very similar in size to the current 240s who run without being a 20 year old car and having a more modern engine.
dwx is offline   Reply With Quote
Old 11-02-2012, 05:57 PM   #49
GTB/ZR-1
Scooby Newbie
 
Member#: 88127
Join Date: May 2005
Location: Winter Garden, FL
Vehicle:
2009 Datsun GT-R
Red

Default

SM was won by a 2600# 300whp e36 M3--so I think the Twins would be very competitive in the ~370-400whp/2500# range, IMO. VERY competitive...
GTB/ZR-1 is offline   Reply With Quote
Old 11-02-2012, 06:13 PM   #50
dwx
Scooby Guru
 
Member#: 8343
Join Date: Jul 2001
Chapter/Region: MWSOC
Location: Atlanta, GA
Vehicle:
2005 2012 Jeep
2013 DGM BRZ

Default

Yeah I think I mentioned in the SM thread I don't know if there is a better SM car right now, on paper at least.

This is the BRZ-300 Accelerated kit (GT28RS) on 93 octane pump gas. So I think on E85 you could probably get around 350WHP pretty easily with a lot more low/mid-range torque, not sure about spinning the motor to 8200 RPM like that long term, but sure makes 2nd gear more livable for autox.



I'm curious to see how that Innovate twin-screw SC does as far as power goes.

Back to STX.
dwx 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

All times are GMT -4. The time now is 10:32 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.