Trofeo R or R888R tires - McLaren Life
 1Likes
  • 1 Post By AZ Charlie
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 11 Old 04-13-2018, 10:04 PM Thread Starter
Owner
 
AZ Charlie's Avatar
 
Join Date: Oct 2017
Location: Arizona & Montana
Posts: 235
Garage
Trofeo R or R888R tires

Just curious if you men have tried the new R888R tire compared to the Trofeo R. This is going on forgeline wheels on a 570S. I am considering:

Front:
Trofeo R 245/35/19
23 lbs
$358 Tire Rack

OR

R888R in 245/35/19
25 lbs
$278 Tire Rack
806 Rev per mile compared to 801 stock size 225/35/19


Rear:
Trofeo R 305/30/20
Tire weight 28 lbs
Rev per mile - anyone know? Maybe 744?
$554 at Tire Rack
HUGE WEIGHT SAVINGS ON THE TROFEO R...

Or

R888R 305/35/20
Tire weight 34 lbs
Rev 731 per mile compared to stock size 724 per mile.
$409 a tire at Tire Rack
McLarenScottsdale likes this.
AZ Charlie is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 04-16-2018, 06:23 AM
 
Join Date: Jul 2017
Posts: 5
I have similar interest here. I am considering sticking with OEM wheels (19" wheel w/8" rim width, 20" wheel w/10" rim width) and looking at both Trofeo R and R888R tire options.

From TireRack rim width specs. and looking at TireSize.com's calculator (https://tiresize.com/wheel-offset-calculator/), it looks like I can run either:
- Front Tire: 235/35/19 (TROFEO R or R888R)
- Rear Tire: 295/35/20 (TROFEO R) or 305/35/20 (R888R)

Questions:
1) Anyone tried the wider 305/35/20 R888R on OEM wheel? Does it fit and not rub on the track?
2) I have experience using 15" R888 on an Ariel Atom 2, but not 19"/20" R888R...anyone have good/bad things to say about them?

Thank you in advance!
macrow69 is offline  
post #3 of 11 Old 04-19-2018, 04:37 AM
 
Join Date: Dec 2016
Posts: 41
305/35/20 is a really toll tire; 325/30/20 would be a better fit but on wider wheels in my opinion.
305/30/20 is definitely too short and I would suggest to run the stock size 285/35/19 at that point.

R888R are definitely heavier tires; Michelin Cup2 tires should have the same sizes available but drastically lighter than the Toyos.
exoticlambo is offline  
 
post #4 of 11 Old 04-19-2018, 11:51 AM
 
Join Date: Apr 2018
Location: SE Mass
Posts: 185
My first post. Wifey used to run 888s on her C2S years ago. They will start to sing after a while.
Scruffy is offline  
post #5 of 11 Old 04-19-2018, 12:50 PM
 
Join Date: May 2017
Location: South-Germany
Posts: 19
Garage
I drive mostly Nordschleife and had all 3 tires mounted on the OEM Wheels

Pirelli Corsa
Michelin Cup2
Trofeo R

The Michelin has slightly better grip as soon as over 50% of the profile are used up.
Corsa works very well from the beginning, but a maximum of 8 laps. Then I have to wait at least 1 hour, because the temperature are too high.

Trofeo needs at least 2 laps of warm-up and then has a slightly better grip than the Corsa. Basically, it can be said that the Trofeo can drive longer in a row than with the Corsa, but the wear is simply too high. It's not worth it for me as I drive at least 160 laps of Nordschleife a year, and also at least 3 track days on Grand Prix circuits.
AlPacino is offline  
post #6 of 11 Old 04-23-2018, 10:35 AM
 
Join Date: Dec 2016
Posts: 41
Quote:
Originally Posted by AlPacino View Post
I drive mostly Nordschleife and had all 3 tires mounted on the OEM Wheels

Pirelli Corsa
Michelin Cup2
Trofeo R

The Michelin has slightly better grip as soon as over 50% of the profile are used up.
Corsa works very well from the beginning, but a maximum of 8 laps. Then I have to wait at least 1 hour, because the temperature are too high.

Trofeo needs at least 2 laps of warm-up and then has a slightly better grip than the Corsa. Basically, it can be said that the Trofeo can drive longer in a row than with the Corsa, but the wear is simply too high. It's not worth it for me as I drive at least 160 laps of Nordschleife a year, and also at least 3 track days on Grand Prix circuits.

Is there any particular reason why you haven’t try the R888 or the R888Rs?
exoticlambo is offline  
post #7 of 11 Old 04-23-2018, 02:58 PM
 
Join Date: May 2017
Location: South-Germany
Posts: 19
Garage
I contacted Toyo Deutschland on Friday about this because of a approval. Well, maximum speed of 330 I'm not interested, because I can drive a maximum of 270 kilometers per hour on the Nordschleife. I not drive with my car on an german autobahn. I asked the R888R, front with 235 size, rear 285. Let's see what Toyo advice.

Last year, Michelin had denied any approval for the Cup2. They did not want any risk. Obviously, they do not trust their own product ? At that time nobody wanted to sell me the Cup2 or even mount it.Very funny was it not to find somebody to mount the tires.
AlPacino is offline  
post #8 of 11 Old 04-25-2018, 09:48 AM
 
Join Date: May 2017
Location: South-Germany
Posts: 19
Garage
Have today telephoned with Toyo Germany. They seem to be very convinced of their product. The technician said the R888R should work great on the 570. The tire temperature should be at least 75 degrees Celsius and can work well up to 100 degrees. Air pressure should be warm at 2.1-2.2 bar = 30.45 to 31.90 psi
AlPacino is offline  
post #9 of 11 Old 04-25-2018, 11:33 PM
 
Join Date: Nov 2017
Posts: 24
R888R Toyo spec's

Thanks for the post on the Toyo's - lucky you to drive such an incredible track regularly.
Just comparing data that you quoted from Toyo Germany with what I got from Toyo US - the US office max'd out the temp's at 200 F / 93 C.
But my real question to you is about the pressures - perhaps it is just a regional difference with terminology, but you cited Warm temp's - a term that we normally do not reference in the US, we stick with Cold & Hot. Is your Warm temp's numbers right off the track + 3 mins or so to get to the trailer and jump out of the car etc., or did you mean to imply some longer period of cooling after a track session ? Many thanks for the clarification.
Attila3439$ is offline  
post #10 of 11 Old 04-26-2018, 03:58 AM
 
Join Date: Mar 2018
Posts: 55
Quote:
Originally Posted by exoticlambo View Post
Is there any particular reason why you havenít try the R888 or the R888Rs?
I had r888's on my GT3. VERY noisy tires. Track guys don't like them because of either early wear or they it takes awhile to warm up. Can't remember. Search on rennlist.
damage is offline  
post #11 of 11 Old 04-26-2018, 04:57 PM
 
Join Date: May 2017
Location: South-Germany
Posts: 19
Garage
Quote:
Originally Posted by Attila3439$ View Post
Thanks for the post on the Toyo's - lucky you to drive such an incredible track regularly.
Just comparing data that you quoted from Toyo Germany with what I got from Toyo US - the US office max'd out the temp's at 200 F / 93 C.
But my real question to you is about the pressures - perhaps it is just a regional difference with terminology, but you cited Warm temp's - a term that we normally do not reference in the US, we stick with Cold & Hot. Is your Warm temp's numbers right off the track + 3 mins or so to get to the trailer and jump out of the car etc., or did you mean to imply some longer period of cooling after a track session ? Many thanks for the clarification.
Hi Attila,

Sorry for misspellings, poor grammar and my odd phrasings

By "warm" we mean in Germany, the actual operating temperature of the tire. So that's what you call "hot".

In general, the tires reached the "hot" temperature after 1-2 laps Nordschleife. I reduce then the air pressure because, after 1 or 2 laps, the tire reached over 2.8-2.9 bar air pressure. So I reduce it to have maximum 2.1 or 2.2 - depending on the tire manufacturer. The Michelin Cup2 works good with 2.2, with the Pirelli I have always driven with 2.1. Toyo recommends an air pressure between 2.1 and 2.2 (when hot)

For calculation "bar" in "PSI", please use this page, for example

https://www.translatorscafe.com/unit...38-22/Psi-Bar/
AlPacino is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the McLaren Life 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













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