Welcome to the North American Subaru Impreza Owners Club Sunday April 20, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension 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 > Brakes, Steering & Suspension

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 03-16-2001, 08:32 PM   #1
dch
Scooby Specialist
 
Member#: 1057
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2004 WRX STi
Very Yellow

Post Rotor Size vs. Wheel Size

In looking around at various brake packages, I've seen that the bigger rotors require bigger wheels. This makes sense, but it begs a question:

What do people with big-arse brakes on 17" wheels do when they want to slap on some 15" wheels and go play in the dirt? Change brakes too? ugh! Either that or just stick with the smaller brakes I suppose. Am I missing something?

(I'm looking for the largest brakes possible for 16" wheels and want to know if I'm going to screw myself out of 15" snow tires in doing so)

-Doug

[This message has been edited by dch (edited March 16, 2001).]
* Registered users of the site do not see these ads.
dch is offline   Reply With Quote
Old 03-16-2001, 08:39 PM   #2
iodine23
Scooby Specialist
 
Member#: 4071
Join Date: Feb 2001
Location: Austin, TX
Vehicle:
2001 Impreza 2.5RS
Blue Ridge Pearl

Post

Sure, why not? I haven't actually done it, but in the mods section it looks like changing the rotors at least isn't that much of a problem... you're already halfway there or more by taking off the big wheel anyways.

Of course, if you have bigger calipers or something that won't fit the smaller rotor, then you'd have to swap out the whole assembly and rebleed the brakes and stuff I guess.

I think the STi 4-pot big front brake kit is about the biggest you can get on the 16" rims. My friend has a set on the stock MY00 rims and they look real sweet and fill outt he wheel very nicely.
iodine23 is offline   Reply With Quote
Old 03-16-2001, 09:28 PM   #3
dch
Scooby Specialist
 
Member#: 1057
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2004 WRX STi
Very Yellow

Post

Correct me if I'm wrong (hey- it's been known to happen), but the calipers are tied to the axle, right? For a rotor with diameter X, the caliper sits at the outer circumference (the radius from the center, roughly speaking). So if you yank the rotor and slap in one that's 2" shorter (diameter-wise), you'd have to adjust the caliper position down about 1". Is there such a thing as an adjustable caliper mount? I'd sure hate to have one adjust itself on me whilst turning in... I've never paid attention to how that all ties together before. I suppose if the caliper is designed to ride on a certain sized arc, a radically smaller rotor might just plain not fit right even if you could adjust it. Might be worth a trip to my garage...

-Doug
dch is offline   Reply With Quote
Old 03-17-2001, 09:07 AM   #4
dch
Scooby Specialist
 
Member#: 1057
Join Date: Mar 2000
Chapter/Region: MWSOC
Location: Minneapolis, MN
Vehicle:
2004 WRX STi
Very Yellow

Post

Jebus! There's a ton of info on this board about brakes! From what I can discern, Raceline RL7's in a 15" size will fit the STi 298mm brakes (most 16" wheels will fit too). Bigger means swapping brakes (calipers and all) if you want to use smaller wheels. So the answer is you can make it work within certain restrictions and cash flow categories.

Guess I should have spent the 6 hours searching before I posted, eh?

-Doug
dch 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
tire size vs rim size 06STi Tire & Wheel 4 08-14-2007 09:56 PM
Tire Size vs. Wheel Width njskatchmo Tire & Wheel 15 07-31-2006 09:54 PM
Tire vs Wheel Size Virusx86 Tire & Wheel 9 03-26-2006 05:59 PM
JDM v7 wheel vs GC8 vs Tire size??? OB2 Tire & Wheel 5 03-03-2006 12:29 AM
Turbo Gurus - A/R vs. Trim vs. Wheel size?? Gixxerjb Normally Aspirated with bolt-on Forced Induction Powertrain 2 09-20-2004 11:05 AM


All times are GMT -4. The time now is 11:30 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.