225/45/15 & 245/40/15 Maxxis RC-1 - Page 6 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


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

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 12-23-2014, 02:19 PM   #101
Senior Member
 
Join Date: Dec 2010
Location: Auckland, NZ
Posts: 783
Total Cats: 23
Default

Thanks for the input much appreciated.
mx5-kiwi is offline   Reply With Quote
Old 12-23-2014, 02:31 PM   #102
Junior Member
iTrader: (2)
 
Join Date: Oct 2014
Location: Alberta, Canada
Posts: 68
Total Cats: 0
Default

Quote:
Originally Posted by OGRacing View Post
correct me if i'm wrong but the speed chart goes in this order.
fastest
to
slowest

Hoosier
toyo rr - hankook z214 c71(soft)
toyo ra1 - hankook z214 c51 (hard)
toyo r888- maxxis rc1 - nitto nto1
hankook rs3- Bfg rival- toyo r1r

feel free to change this.. i think this is accurate.. maybe
https://www.miataturbo.net/race-prep...hy-chat-76811/
k1l4m is offline   Reply With Quote
Old 12-23-2014, 03:51 PM   #103
Supporting Vendor
iTrader: (1)
 
OGRacing's Avatar
 
Join Date: May 2014
Posts: 1,764
Total Cats: 46
Default

thanks.
OGRacing is offline   Reply With Quote
Old 12-23-2014, 09:31 PM   #104
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,370
Total Cats: 1,332
Default

Quote:
Originally Posted by OGRacing View Post
fastest
to
slowest

Hoosier
toyo rr - hankook z214 c71(soft)
toyo ra1 - hankook z214 c51 (hard)
toyo r888- maxxis rc1 - nitto nto1
hankook rs3- Bfg rival- toyo r1r

feel free to change this.. i think this is accurate.. maybe
Not correct, look at the Tire Hierarchy thread.
Savington is online now   Reply With Quote
Old 12-28-2014, 02:43 AM   #105
Newb
 
Join Date: Dec 2014
Posts: 12
Total Cats: 1
Default

Emelio how do you think the 245 will do on a 9.5 wheel?
RHD_Tarzan is offline   Reply With Quote
Old 12-28-2014, 08:38 AM   #106
Moderator
iTrader: (11)
 
sixshooter's Avatar
 
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 15,687
Total Cats: 1,562
Default

Quote:
Originally Posted by RHD_Tarzan View Post
Emelio how do you think the 245 will do on a 9.5 wheel?
You spelled his name wrong.

It will probably work like somewhere between a 9 inch wheel and a 10 inch wheel. The tire works on both. It is just slightly better for lap times on a 10 inch wheel with a good driver.
sixshooter is online now   Reply With Quote
Old 12-30-2014, 02:44 AM   #107
Junior Member
 
Join Date: Nov 2014
Location: OC
Posts: 70
Total Cats: -5
Default

Quote:
Originally Posted by sixshooter View Post
You spelled his name wrong.

It will probably work like somewhere between a 9 inch wheel and a 10 inch wheel. The tire works on both. It is just slightly better for lap times on a 10 inch wheel with a good driver.
Do we know if the 245 rc1 on the 10" +25 fits the NB with track camber (3* front / 3.5* rear) without flares? I know they fit without much on the 9", but the 10" will make a bit more interference...hence why it's better/faster.
1999NB is offline   Reply With Quote
Old 12-30-2014, 12:43 PM   #108
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,325
Total Cats: 1,344
Default

Quote:
Originally Posted by 1999NB View Post
Do we know if the 245 rc1 on the 10" +25 fits the NB with track camber (3* front / 3.5* rear) without flares? I know they fit without much on the 9", but the 10" will make a bit more interference...hence why it's better/faster.
No flares in this pic. Flat rolled fronts, rolled rears. No pull. Most folks assume our 15x10 was optimized for 275/35 Hoosiers. Our 10's were designed around the 245 RC-1 which was still two years away. Everything just fits.

https://www.miataturbo.net/wheels-ti...3/#post1184755
emilio700 is offline   Reply With Quote
Old 12-30-2014, 01:09 PM   #109
Junior Member
iTrader: (3)
 
Join Date: Oct 2011
Location: Naperville
Posts: 369
Total Cats: 3
Default

I have never understood offsets very well. Can I assume a 10", with a +10 offset will not hit my sways and TSE brake ducts, if my 9" 6ULS don't?

Thanks E!!
tomiboy is offline   Reply With Quote
Old 12-30-2014, 01:32 PM   #110
Junior Member
 
Join Date: Nov 2014
Location: OC
Posts: 70
Total Cats: -5
Default

Quote:
Originally Posted by emilio700 View Post
No flares in this pic. Flat rolled fronts, rolled rears. No pull. Most folks assume our 15x10 was optimized for 275/35 Hoosiers. Our 10's were designed around the 245 RC-1 which was still two years away. Everything just fits.

https://www.miataturbo.net/wheels-ti...3/#post1184755
Excellent - then I'll have them mounted up on the 10" ULs for an event at Laguna this weekend with fresh RC1s. I see you stated this earlier in this thread as well; sorry for the repeat. :(

Did you end up liking 36psi HOT the most? I've read "34-38psi" target pressures.

Quote:
Originally Posted by tomiboy View Post
I have never understood offsets very well. Can I assume a 10", with a +10 offset will not hit my sways and TSE brake ducts, if my 9" 6ULS don't?

Thanks E!!
Your 9" 6ULs are a +36 offset; you're comparing them to a 10" +10 offset. The outer part of your 10 will sit 38mm more OUT (towards the fender) than the 9" 6UL (fender flare?). You asked about the inside though; you will have 14mm of additional INNER clearance with the 10" +10 vs the 9" +36. You've basically moved the centerline by 26mm, then added 12.5mm on each side due to the 1" larger wheel.

Last edited by 1999NB; 12-30-2014 at 02:20 PM.
1999NB is offline   Reply With Quote
Old 12-30-2014, 03:10 PM   #111
Junior Member
iTrader: (3)
 
Join Date: Oct 2011
Location: Naperville
Posts: 369
Total Cats: 3
Default

Quote:
Originally Posted by 1999NB View Post
Excellent - then I'll have them mounted up on the 10" ULs for an event at Laguna this weekend with fresh RC1s. I see you stated this earlier in this thread as well; sorry for the repeat. :(

Did you end up liking 36psi HOT the most? I've read "34-38psi" target pressures.



Your 9" 6ULs are a +36 offset; you're comparing them to a 10" +10 offset. The outer part of your 10 will sit 38mm more OUT (towards the fender) than the 9" 6UL (fender flare?). You asked about the inside though; you will have 14mm of additional INNER clearance with the 10" +10 vs the 9" +36. You've basically moved the centerline by 26mm, then added 12.5mm on each side due to the 1" larger wheel.
Thanks!! That is what I was hoping!
tomiboy is offline   Reply With Quote
Old 12-30-2014, 04:31 PM   #112
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,325
Total Cats: 1,344
Default

Quote:
Originally Posted by tomiboy View Post
I have never understood offsets very well. Can I assume a 10", with a +10 offset will not hit my sways and TSE brake ducts, if my 9" 6ULS don't?

Thanks E!!
1010TIRES.COM - Wheel Offset Calculator

Quote:
Originally Posted by 1999NB View Post
Excellent - then I'll have them mounted up on the 10" ULs for an event at Laguna this weekend with fresh RC1s. I see you stated this earlier in this thread as well; sorry for the repeat. :(

Did you end up liking 36psi HOT the most? I've read "34-38psi" target pressures.
I use a pyrometer to dial in pressures.
emilio700 is offline   Reply With Quote
Old 01-07-2015, 02:01 AM   #113
Elite Member
iTrader: (2)
 
Mobius's Avatar
 
Join Date: May 2008
Location: Portland, Oregon
Posts: 3,178
Total Cats: 267
Default

I've been trying to find the answer to this question - are the RC-1's directional? If they are not, I can rotate them any old way, and get lots of life, and that's glorious. My two tracks pound the Left Front. Toyo RR's are directional, and must be rotated diagonally on a RWD car, which resulted in the LF/RR pair cording at the end of the season while the other pair still had a couple of events at least in them.
Mobius is offline   Reply With Quote
Old 01-07-2015, 02:29 AM   #114
Supporting Vendor
Thread Starter
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,325
Total Cats: 1,344
Default

RC-1's not directional and not subject to tread splice weakness like the RR, Rival et.al
emilio700 is offline   Reply With Quote
Old 01-07-2015, 06:34 AM   #115
Supporting Vendor
iTrader: (3)
 
Join Date: Jul 2006
Location: San Diego
Posts: 2,865
Total Cats: 493
Default

Aaaaah I can't wait!



Mounted pics soon hopefully
Attached Thumbnails
225/45/15 & 245/40/15 Maxxis RC-1-img_1750_zps05f63bb7.jpg  
ThePass is offline   Reply With Quote
Old 01-07-2015, 09:12 AM   #116
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,010
Total Cats: 583
Default

Quote:
Originally Posted by emilio700 View Post
RC-1's not directional and not subject to tread splice weakness like the RR, Rival et.al
That said, the grooves are not symmetrical, so the tires do have an outside and an inside. Can't flip them on the rim.

+1 on tread splices. Been pounding on mine, no visible splices whatsoever. I can usually get rivals to show splices in a session or two.
hornetball is offline   Reply With Quote
Old 01-07-2015, 10:27 AM   #117
Elite Member
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

Quote:
Originally Posted by hornetball View Post
That said, the grooves are not symmetrical, so the tires do have an outside and an inside. Can't flip them on the rim.

+1 on tread splices. Been pounding on mine, no visible splices whatsoever. I can usually get rivals to show splices in a session or two.
I don't see why it matters which way you mount them. care to enlighten? Unless maybe you use one side of your tires more than the other...which will be camber dependent.
Seefo is offline   Reply With Quote
Old 01-07-2015, 11:17 AM   #118
Elite Member
iTrader: (3)
 
Join Date: Mar 2008
Location: Granbury, TX
Posts: 6,010
Total Cats: 583
Default

Quote:
Originally Posted by Seefo View Post
I don't see why it matters which way you mount them. care to enlighten? Unless maybe you use one side of your tires more than the other...which will be camber dependent.
The outside of the tire has a larger slick area. Tire sidewall is prominently marked "outside." My "theory" is that this was a design choice by Maxxis to try to provide the largest, slickest profile possible on the outside of the tire where most cornering loads are carried. Helps to make up for the hard compound that they use.

I wear the outside of my tires more than the inside regardless of camber. Obviously, aggressive camber helps to reduce the difference. I've got as much front camber as I can get on the car without going to offset bushings/adjustable length control arms/etc.
hornetball is offline   Reply With Quote
Old 01-07-2015, 12:57 PM   #119
Senior Member
 
Join Date: May 2008
Location: Canada
Posts: 513
Total Cats: 110
Default

If you wear the outside significantly faster than the inside, wouldn't you extend the life of the tire by flipping them inside-out? I've done this with my NT-01s (and RA-1s before that). I understand that it might not be optimal, but the tread will be semi-slick across the surface by then anyway.
DeerHunter is offline   Reply With Quote
Old 01-07-2015, 01:00 PM   #120
Junior Member
 
ozbrock's Avatar
 
Join Date: Dec 2010
Location: Orlando, FL
Posts: 192
Total Cats: 19
Default

I decided to paint the letters on mine while I'm waiting for my RS3's to completely wear out. Probably going to do 2-3 more autocross events on the RS3's before I mount the 245's

Name:  C8B11566-8060-4530-B087-347D337BA623.jpg
Views: 65
Size:  178.0 KB
ozbrock is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
15x10 - 15x11 6UL @ 949 Racing emilio700 Wheels and Tires 151 06-02-2017 03:36 PM
Re-Spring Tein FLEX or replace? Mazdaspeeder Suspension, Brakes, Drivetrain 21 10-03-2015 07:45 PM
Noob from Fort Worth, Texas checking in. Miatabro Meet and Greet 7 09-11-2015 01:13 PM
NB8B / 15x9 / 225.45.15 - How low can you go? Neddy Race Prep 5 09-08-2015 04:13 AM


Tags
maxxis rc-1, supermiata

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:57 PM.