Welcome to the North American Subaru Impreza Owners Club Thursday August 21, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Tire & Wheel Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
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 Technical > Tire & Wheel

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.
View Poll Results: which wheel yields best performance?
Kosei 17x7 ET50 12.5 lbs wheels 10 50.00%
04 STi BBS 17x7.5 ET53 16lbs wheels 5 25.00%
I dunno and I like to waste bandwidth 2 10.00%
I'm a moron 3 15.00%
Voters: 20. You may not vote on this poll

Reply
 
Thread Tools Display Modes
Old 01-25-2007, 07:13 PM   #1
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default Which will be better? light weight or wider?

From what I've searched, it appears that 225 is about as wide as I can go on my 06 WAGON without rubbing or fender rolling. I plan to run STi wagon pinks in the future with koni inserts.

So, considering this:

225/45/17 tire on both wheels

- Kosei 17x7 ET50 12.5 lbs wheels
- 04 STi BBS 17x7.5 ET53 16lbs wheels

If you were to pick one wheel to go with this tire for your autox, track, (or rallyx) which would you choose and why? (ignore aesthetics)

Since the tire is the same, which yields better results? The wider rim or the lighter rim?
* Registered users of the site do not see these ads.
chimchimm5 is offline   Reply With Quote
Old 01-25-2007, 07:51 PM   #2
Patrick Olsen
NASIOC Supporter
 
Member#: 120
Join Date: Jul 1999
Chapter/Region: AKIC
Location: Where the Navy sends me...
Vehicle:
1997 Legacy 2.5GT
QuickSilver Metallic

Default

That's one you'll never figure out without putting them both on the car and doing your own data gathering. Really I think it would pretty much be a toss-up.
Patrick Olsen is offline   Reply With Quote
Old 01-25-2007, 08:00 PM   #3
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

Quote:
Originally Posted by Patrick Olsen View Post
That's one you'll never figure out without putting them both on the car and doing your own data gathering. Really I think it would pretty much be a toss-up.
What's your guess and why?

I'm trying to justify getting those 04 sti BBS wheels with a reason besides "I lust after them".

Can you get wider tires on the BBS and not rub on the wagon?
chimchimm5 is offline   Reply With Quote
Old 01-25-2007, 08:03 PM   #4
REX8
*** Banned ***
 
Member#: 24038
Join Date: Sep 2002
Chapter/Region: South East
Location: Godspeed Cale...
Default

Thats a pretty big weight difference. I'd say go with the lighter 7" wheels. 225's on 7" isn't a problem, hardly a change over a 7.5". The weight change is more significant.

12 lb. wheels can easily be felt.
REX8 is offline   Reply With Quote
Old 01-25-2007, 08:05 PM   #5
REX8
*** Banned ***
 
Member#: 24038
Join Date: Sep 2002
Chapter/Region: South East
Location: Godspeed Cale...
Default

Rally-X???

Definately the stronger STi wheels then.
REX8 is offline   Reply With Quote
Old 01-25-2007, 08:13 PM   #6
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

Quote:
Originally Posted by REX8 View Post
Rally-X???

Definately the stronger STi wheels then.
I'm in a bit of a dilemma... I have my kosei's for summer tires (and track days). I have my stock 17" rims with RE92's on them. I planned on keeping this set for going up to the snow and cold parts of winter.

But then... 04 sti BBS wheels became available to me. And I've dreamed about having BBS wheels. So in this case, one set has to be sold.

But then... which do I use for which? Which is the performance set and which is the all season set?

now: stock and kosei
combo1a: kosei (perf) and bbs (daily) - then I waste the bbs width
combo1b: kosei (daily) and bbs (perf) - hence this thread
combo2: stock and bbs

I've been using the stock and RE92 for rallyx.
chimchimm5 is offline   Reply With Quote
Old 01-25-2007, 08:16 PM   #7
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

Oh... and I was wondering if a 225 on the 7.5" is better than the 225 on a 7" because of the sidewall bulge.
chimchimm5 is offline   Reply With Quote
Old 01-25-2007, 08:24 PM   #8
tora
Scooby Guru
 
Member#: 5851
Join Date: Apr 2001
Chapter/Region: VIC
Location: Vancouver
Vehicle:
09 Forester XT
+ NA Miata

Default

I'd go with the Kosei's. The stock BBS aren't 16lbs they are more like 17.2lbs. A saving of almost 5 lbs per wheel is VERY good. You can still fit a 225 on a 7" wheel so I would do just that.
tora is offline   Reply With Quote
Old 01-25-2007, 08:43 PM   #9
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

Hmm... I must have been thinking about the 16lbs Subaru option BBS 17x7 for the WRX.
chimchimm5 is offline   Reply With Quote
Old 01-25-2007, 10:57 PM   #10
Mind
Scooby Specialist
 
Member#: 109216
Join Date: Mar 2006
Chapter/Region: MAIC
Location: PA
Vehicle:
08 STI DGM
76-77 Lancia Scorpion(s)

Default

I always had a little concern regarding the Kosei's... I'm just a little suspicious that they are so light and not forged. I know people have been running them fine (including you), but that's just me. Since I DD my wheels, I'm very comfortable running a set of fully forged 16.5 lb BBS wheels. Still light for a 17x7.5, and OEM-level strength and reliability.

Technically a 7.5" will provide better handling than a 7".

Also, I know of some '06 Wagon guys who are running 17x8 ET48 235/40-17's with no rubbing... dropped on pinks with a full load and hard driving... so that may be something to think about for summer performance.
Mind is offline   Reply With Quote
Old 01-26-2007, 01:30 PM   #11
chimchimm5
Scooby Guru
 
Member#: 88501
Join Date: Jun 2005
Chapter/Region: BAIC
Location: NorCal
Vehicle:
2011 WRX Hatch
Dark Grey

Default

I've always wonder about strength too. The Kosei's are cast and shot peened. I figure, with < 250hp and no potholes, they'll be fine for whatever. We'll see what happens when a curb jumps out at me or the runoff yanks me to it.

I thought about this, and here's what I'm doing: keeping the Kosei's for the track/autox stuff and enjoy the bling of the BBS for regular driving. I'm even going to put (gasp!) all seasons on the BBS (probably ultra high perf or something). Then, when/if the kosei's meet a terrible fate, I switch to the BBS full time or get a set of SSRs.

Either way, the stock 17's are gone; the BBS are lighter weight than the stockers.

I've always wanted to know what it's like hard cornering on a big meaty 245 tire. Maybe I should just rent a vette to find out.
chimchimm5 is offline   Reply With Quote
Old 01-27-2007, 12:35 AM   #12
Mind
Scooby Specialist
 
Member#: 109216
Join Date: Mar 2006
Chapter/Region: MAIC
Location: PA
Vehicle:
08 STI DGM
76-77 Lancia Scorpion(s)

Default

Quote:
Originally Posted by chimchimm5 View Post
Either way, the stock 17's are gone; the BBS are lighter weight than the stockers.
I don't think there's any question that the BBS's are far superior to the stockers. About 5 lbs lighter, and 0.5" wider, and the look UNBELIEVABLE. Although, I must admit... I do really like the look of the stockers on the wagons. I might be in the minority, but I think they look excellent.

I LOVE SSR's.

I think it would be really interesting to see a controlled test of a 12.5 lb 17x7 vs a 16.5 lb 17x7.5 in terms of handling/track/autocross times (same tire). Who do we know who will have both of these available to them... who do we know... hmmm....

Quote:
Originally Posted by chimchimm5 View Post
I thought about this, and here's what I'm doing: keeping the Kosei's for the track/autox stuff and enjoy the bling of the BBS for regular driving. I'm even going to put (gasp!) all seasons on the BBS (probably ultra high perf or something). Then, when/if the kosei's meet a terrible fate, I switch to the BBS full time or get a set of SSRs.
Mind is offline   Reply With Quote
Old 01-27-2007, 12:55 AM   #13
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

....get the wider wheel.........REALLY.
Uncle Scotty 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
White or Red Leds for brake lamps, which will be brighter? 2slofouru Electrical & Lighting 18 02-05-2007 07:52 PM
What will be better for an n/a ej25/ej22 hybrid? ej22 or ej22t HLA heads? lotus2843 Subaru Conversions 4 08-09-2005 03:13 PM
Which would be better, FPgreen or T67? Capt Crunch Factory 2.0L Turbo Powertrain 49 04-07-2005 09:06 PM
TPS or MAP, which would be better?? FuZZyLoGiC Factory 2.0L Turbo Powertrain 56 11-27-2001 06:09 PM
Which would be better-more Cost Effective MY99 2.5GT Factory 2.0L Turbo Powertrain 1 06-19-2001 02:55 PM


All times are GMT -4. The time now is 09:18 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.