2016 STU Discussion!
#1
2016 STU Discussion!
New year, new thread. 2016 brings a 265mm tire limit to the STU boost buggies. While not the 285s that many had hoped for, it will be nice to have some more grip. Now the question for most of us is whether to stick with 255s on our 17s or to spend the money on 265s on 18s. There are mixed opinions on whether or not 10-inch wide wheels can be fitted within the STU fender rolling rules, so it will be interesting to see which wheels people end up running. Not that interesting, though, because we're still just talking about 0.5" of tire width.
Previous threads:
2015 STU discussion
2014 STU discussion
2013 STU discussion
2012 STU discussion
2011 STU Discussion
2010 STU
2009 STU
2008 STU
Pre-2008 STU thread
Previous threads:
2015 STU discussion
2014 STU discussion
2013 STU discussion
2012 STU discussion
2011 STU Discussion
2010 STU
2009 STU
2008 STU
Pre-2008 STU thread
Last edited by Construct; Apr 26, 2016 at 08:44 PM.
#2
Tire rack was kind enough to re-measure the relevant RE-71R sizes after BriK inquired. Their current specs:
Upgrading to 255s is only a tiny jump in tread width. The 265s are about an inch wider at the tread, though.
I'm leaning toward the 265 setup this year, but I'm not looking forward to spending all of that extra money on tires and wheels.
Code:
Section Tread Meas. Tire Size Weight Width Width Rim Dia. 245/40R17 23 lbs 9.8" 8.6" 8.5" 24.7" 255/40R17 24 lbs 10.2" 8.9" 9.0" 25.0" 265/35R17 27 lbs 10.7" 9.7" 9.5" 25.3"
I'm leaning toward the 265 setup this year, but I'm not looking forward to spending all of that extra money on tires and wheels.
#3
Evolved Member
iTrader: (10)
Just to stir the pot (while the RS is still up for sale.....) Wouldn't the PROPER measurements for our wacky usage be more meaningful if done on the proper wheel widths? 245s were commonly ran on a 9.5" in STU, not 8.5"... so measure that vs. the 255/265 on the wheel widths likely to be used for the class.
Anyway, wishing all my boost-brothers a GREAT showing in 2016, still up in the air what will be the next axe to play with here, though I am certain it will scream track-day/time-attack as much as anything.
Anyway, wishing all my boost-brothers a GREAT showing in 2016, still up in the air what will be the next axe to play with here, though I am certain it will scream track-day/time-attack as much as anything.
#6
Evolving Member
Trending Topics
#12
Evolving Member
I have the West Coast dates, fwiw
San Diego Match Tour - March 19th and 20th
El Toro Pro - April 9-10
Crow's Landing National Tour - April 23-24
Crow's Landing Pro Solo - April 30th-May 1st
Packwood National Tour - July 9-10
Packwood Pro Solo - July 16-17
#13
2016 Schedule
Championship Tours
https://www.scca.com/pages/championship-tour
Match Tours
https://www.scca.com/pages/match-tour
ProSolos
https://www.scca.com/pages/prosolo
Championship Tours
https://www.scca.com/pages/championship-tour
Match Tours
https://www.scca.com/pages/match-tour
ProSolos
https://www.scca.com/pages/prosolo
#14
Since I have an Evo X, I am definitely going 265. Debating about getting 10” wheels or keep the 9.5” finding the perfect offset wheels could be an issue… thoughts?
Options 1) 265/35R18 & loose ~1 MPH in 2nd gear; fitment should be ok
Options 2) Rumors of 265/45R18 RE-71 R coming this year??? That size should make the 2nd gear better for me…but this tire may be around 1.7” taller than the stock size 245/40/18 so clearance up front could be an issue.
Options 1) 265/35R18 & loose ~1 MPH in 2nd gear; fitment should be ok
Options 2) Rumors of 265/45R18 RE-71 R coming this year??? That size should make the 2nd gear better for me…but this tire may be around 1.7” taller than the stock size 245/40/18 so clearance up front could be an issue.
#15
Options 1) 265/35R18 & loose ~1 MPH in 2nd gear; fitment should be ok
Options 2) Rumors of 265/45R18 RE-71 R coming this year??? That size should make the 2nd gear better for me…but this tire may be around 1.7” taller than the stock size 245/40/18 so clearance up front could be an issue.
Options 2) Rumors of 265/45R18 RE-71 R coming this year??? That size should make the 2nd gear better for me…but this tire may be around 1.7” taller than the stock size 245/40/18 so clearance up front could be an issue.
A 1.7" taller tire is really, really tall. Keep in mind that your ride height will also go up by half that amount, and you don't really want another 0.85" of ride height increase if you can avoid it. You'd also be reducing your acceleration everywhere due to the taller gearing. And the tires are going to be a lot heavier, and so on.
The only scenario where you'd benefit from a tire that much taller is a course where you spend a lot of time on the rev limiter.