RE-71R life on the track - LotusTalk - The Lotus Cars Community
 
LinkBack Thread Tools Display Modes
post #1 of 11 (permalink) Old 12-04-2015, 04:08 PM Thread Starter
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,956
RE-71R life on the track

I live very near to a ~1.8 mile track that let me join for a few months. I have now gone quite a few times and I have ~280 laps under my belt.

Based on my approximate lap time I can say that you will get about 10 hours on the track out a set of rears and 20 hours out of a set of fronts. I can't imagine many other tracks are harder on tires then this one (harris hill) is so this is probably the worst case. I have also heat cycled these at least 30 times, and I am still getting faster. The next set of rears will probably be a better test of how they react to heat cycling as my driving reaches more of a plateau (I just started on the track and I have improved by 9 seconds so far over that stretch).

FYI I am on 205/45/16 and 245/40/17 and I got new DA penskes about 50 laps ago. I think wear increased when i got them, but I also got a new alignment which i think has too much rear toe.
kfennell is offline  
Sponsored Links
Advertisement
 
post #2 of 11 (permalink) Old 12-04-2015, 04:09 PM Thread Starter
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,956
FYI here is my fastest lap, shock setup is very near correct for this track, just need to get rid of rear tire hop under hard breaking (less rebound?)

kfennell is offline  
post #3 of 11 (permalink) Old 12-05-2015, 11:20 AM
because racecar
 
dallasreed's Avatar
 
Join Date: Mar 2011
Location: Indy
Posts: 540
Good info. You might consider trying r888 ra-1 or similar. Just avoid the purple crack, you'll feel like everything else is junk in comparison.
dallasreed is offline  
 
post #4 of 11 (permalink) Old 12-05-2015, 11:25 AM Thread Starter
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,956
If I went R888 I go with 195/50-16 fronts correct? That was my thought for the next set since I will be through these some time in Jan
kfennell is offline  
post #5 of 11 (permalink) Old 12-05-2015, 11:30 AM
because racecar
 
dallasreed's Avatar
 
Join Date: Mar 2011
Location: Indy
Posts: 540
I used 205 front on 15x7. 245 on 16x8 rear.
dallasreed is offline  
post #6 of 11 (permalink) Old 12-05-2015, 02:38 PM
Registered User
 
Gunpilot's Avatar
 
Join Date: Jun 2012
Location: Enterprise AL
Posts: 4,098
Yes......

R888
195/50/16 F
255/40/17 R

Hoosier A7R7
205/45/16 F
245/40/17 R

Hoosier H2O
205/45/16 F
245/45/17 R

PS.......I like the purple crack but tire opinions are like *******s. Everyone has one. Experiment and find what works for your driving style.

2012 Evora 2+0 IPS.
2007 Exige mental track toy.
2005 Elise.
1982 Brunette.

"Listen up, I ain't Captain Walker. I'm the guy who carries Mr. Dead in his pocket."

"CHARLIE DON'T SURF"

Last edited by Gunpilot; 12-05-2015 at 02:45 PM.
Gunpilot is offline  
post #7 of 11 (permalink) Old 12-23-2015, 11:34 AM
Registered User
 
acslater's Avatar
 
Join Date: Feb 2014
Location: Saratoga, CA
Posts: 977
Garage
Jesus that is a rough track, that's what I imagine it would be like to turn the streets of SF into a road course lol

Trying out the RE-71R on my 2-Series this weekend at Laguna Seca, looking forward to seeing how they perform.
acslater is offline  
post #8 of 11 (permalink) Old 12-23-2015, 12:28 PM Thread Starter
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,956
yeah you're telling me! Makes it easy to find the source of vibrations in the car though, parts will just vibrate right off!

FYI the rears made it to 11 hours and you could JUST see the tread outline still.

The fronts I still had some tread in the middle, but the outsides were getting low so I just went ahead and replaced them. I flipped the tires 2/3 of the way through as well. I also drove 3500 non track miles on them. Honestly I could have run a few more days on the rears and a bunch more on the fronts, but they were getting pretty slippery as they had seemingly heat cycled out long ago!
kfennell is offline  
post #9 of 11 (permalink) Old 12-23-2015, 01:56 PM
Registered User
 
Join Date: Aug 2011
Location: Central Coast NSW Aus.
Posts: 1
The feedback is interesting. What hot tyre pressures do you run?
deebee is offline  
post #10 of 11 (permalink) Old 12-23-2015, 01:58 PM Thread Starter
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,956
27/28 ish. Didn't always keep it perfect and much lower for ax. I think fronts needed to be higher for maximum life and better heat life within a session. Definitely should have been upping the front pressure on the highway.
kfennell is offline  
post #11 of 11 (permalink) Old 01-28-2016, 05:26 PM
Registered User
 
acslater's Avatar
 
Join Date: Feb 2014
Location: Saratoga, CA
Posts: 977
Garage
The RE-71R is a great tire, I had it out at Laguna in December on my 228i and ran 1:48s (I do 1:42s in my Lotus on R888). I'll be out at Thunderhill tomorrow on them in the wet (again in the 228i) so I will post my thoughts after
acslater is offline  
Sponsored Links
Advertisement
 
Reply

  LotusTalk - The Lotus Cars Community > Motorsports > Track and Technique

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the LotusTalk - The Lotus Cars Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome