Wheels and Tires All things related to Miata Wheels and Tires.
Sponsored by:
Sponsored by:

To those who run huge rears...

 
Old 01-26-2017, 09:41 PM
  #1  
Junior Member
Thread Starter
 
Join Date: Jul 2016
Posts: 92
Total Cats: 13
Default To those who run huge rears...

..what size front tires do you run? I am currently running 17 x 7" with 215/45-17 tyres for a 90% track, 10% street NB (big front discs that won't fit 15s). Here in Australia, the Koya semi forged wheels are popular and cheap, so I'm looking at the SF02 in a 17 x 9" with a +15 offset. Turns out like this compared to my current fitment:


At the moment it has 250whp, with ethanol still to come, so hopefully approx 300whp in the end. Seems like there are lots of guys running 245, 255, and 275 rears - I was just wondering what size your fronts are when your caboose is that fat? Over here the size 255/40-17 is readily available. Given my context and specs above, should I run 4 x 255s, or should I run 255s on the back, and something thinner on the front?
Many thanks
ninerwfo is offline  
Old 01-26-2017, 09:42 PM
  #2  
VladiTuned
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 35,197
Total Cats: 3,167
Default

Almost everyone runs identical f/r sizes
So yeah, square.
18psi is offline  
Old 01-26-2017, 09:46 PM
  #3  
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 15,297
Total Cats: 2,006
Default

Square. 245/40/15 front and rear. 255/45/17 won't even come close to fitting on the car properly. Like 3" too tall.
__________________
Trackspeed Engineering
High-Performance Turbo Specialists - Sunnyvale, CA - 650-701-7223 - Email us!
Originally Posted by codrus View Post
Basically I've come over to the camp of "If something is a reliability problem on the track, just ask Andrew and do what he says".
Savington is online now  
Old 01-27-2017, 10:26 AM
  #4  
Senior Member
iTrader: (1)
 
Join Date: Dec 2010
Location: Farmington Hills, MI
Posts: 1,151
Total Cats: 152
Default

Unless you have significant rear weight bias, run square setup for anything that turns.
acedeuce802 is offline  
Old 01-30-2017, 03:47 PM
  #5  
Junior Member
 
Join Date: Feb 2009
Location: The Woodlands, TX
Posts: 328
Total Cats: 12
Default Huge rears

Just for ***** and giggles, read this thread.
Double O 86 is offline  
 


Thread Tools
Search this Thread

Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.