BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      07-07-2013, 03:37 AM   #375
saurabh_turingMS
First Lieutenant
saurabh_turingMS's Avatar
Australia
19
Rep
313
Posts

Drives: 1M AW (F10 520D MSport - gone)
Join Date: Feb 2011
Location: Sydney

iTrader: (0)

Quote:
Originally Posted by sparoz
Quote:
Originally Posted by saurabh_turingMS View Post
Nice rubbers :
is that Trofeo R?
Yup - hopefully it will last till I get on the track . However, I am actually enjoying the new found grip.
keen to get ur thoughts on these, im considering them instead of PSS when the PS2 wear out
Appreciate 0
      07-07-2013, 05:09 AM   #376
1MOz
Captain
1MOz's Avatar
Australia
192
Rep
707
Posts

Drives: BMW 1M AW & F15X5 40d & M2C HS
Join Date: Apr 2008
Location: Sydney, Australia

iTrader: (0)

Quote:
Originally Posted by Ian///M View Post
RE11's are definitely worth consideration. Better than PSS if you can get them.
I had Bridgestone RE11 on my Audi RS4 and it was the worst set out of Pirelli P-Zero and Goodyear Asymmetric F1 on this car. Noisy from day 1 and horrible traction when cold or wet. Tread pattern looked good though.
__________________
Appreciate 0
      07-07-2013, 08:15 AM   #377
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by Ian///M View Post
RE11's are definitely worth consideration. Better than PSS if you can get them.
Quote:
Originally Posted by Ian///M View Post
Sure, RE11's are track orientated tyre with wet & noise compromise.
A little better in the dry, but the PSS don't have the compromise with wet and noise. However, RE11 replacement is coming out this year and I am sure it will be very close to PSS. AD08R should also be on our shores now and 2 seconds faster than the AD08 on a 1 minute track.

Trofeo R is a street legal R compound.
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
      07-07-2013, 08:18 AM   #378
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by saurabh_turingMS View Post
keen to get ur thoughts on these, im considering them instead of PSS when the PS2 wear out
So far very impressive on the street. Very precise turn in and great feedback. Grip is plenty is expected, but will be more interesting to see how well they go at the limit on track especially in a timeattack style day. However, I was told that they are up to speed on the second lap, but will probably need to play with the pressure a bit to get the best out of the tyre in that format.
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
      07-07-2013, 05:10 PM   #379
froop
Colonel
froop's Avatar
Australia
171
Rep
2,682
Posts

Drives: 08 AW 6MT E82
Join Date: Jul 2012
Location: Sydney, Australia

iTrader: (3)

How much did they cost if you don't mind me asking?
__________________
Appreciate 0
      07-07-2013, 11:14 PM   #380
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by Ian///M View Post
Enjoy!... did you get stock sizes?
Just stock size at this stage. I didn't really want to upset the balance too much and understeer at the limit until I understand the car a bit more, but probably will eventually will go to a wider rear, like 295/30 or something.
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
      07-07-2013, 11:44 PM   #381
Smiley1175
Major
Smiley1175's Avatar
Australia
281
Rep
1,017
Posts

Drives: M2
Join Date: Jun 2011
Location: Melbourne

iTrader: (0)

A wider tyre doesn't mean more contact patch on the ground. It's the tyre pressures that dictate that.
A wider tyre will change the shape of the contact patch but the level of grip would remain relatively consistent. What changes is the heat build up in the tyre, as there would be less flex for the same given tyre pressure.
Going to an R-spec tyre is the biggest improvement, playing with tyre pressures is the next step for track performance.
Appreciate 0
      07-08-2013, 01:44 AM   #382
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by Smiley1175 View Post
A wider tyre doesn't mean more contact patch on the ground. It's the tyre pressures that dictate that.
A wider tyre will change the shape of the contact patch but the level of grip would remain relatively consistent. What changes is the heat build up in the tyre, as there would be less flex for the same given tyre pressure.
Going to an R-spec tyre is the biggest improvement, playing with tyre pressures is the next step for track performance.
Yes, looking at pyrometer at the moment. This tyre particular is very sensitive to pressure, but apparently not so much heat.
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
      07-08-2013, 04:54 AM   #383
micha3l
Lieutenant
micha3l's Avatar
Australia
26
Rep
513
Posts

Drives: 2011 BMW M3
Join Date: Dec 2009
Location: Brisbane, Australia

iTrader: (0)

Nice Steve, should be an improvement! Can't wait to see how they work out at the next track day.

Regarding PSS v RE-11, I just switched from PSS to RE-11, a little noisier but dry traction is leaps and bounds better than the PSS, not even in the same league especially on the track.

Coming from RE-11's on my 135 I couldn't wait to get rid of the PSS on my M3, Launch Control definitely got a work out to make them need replacing quicker...
__________________


2011 BMW M3 - Mineral White - VF620 Supercharger - Gintani Sport Valved Exhaust - Harrop BBK - Arykym Front lip and Diffuser - KW Sleeve over kit - Forgestar CF5V Wheels
2009 BMW 135i - Space Grey - 11.841 @ 117.81mph - SOLD
Appreciate 0
      07-08-2013, 05:22 AM   #384
timbo_3101
Lieutenant
Australia
18
Rep
442
Posts

Drives: Slow
Join Date: Dec 2010
Location: Melbourne

iTrader: (0)

Congratulations on your new tyres

Quote:
Originally Posted by sparoz View Post
Yup - hopefully it will last till I get on the track
http://www.safercar.gov/nhtsa-saferc...e=any&wear=any

Trofeo R might have slightly greater longevity than Trofeo, but it still would be interesting to see your mileage as a street tyre. The other issue with using it daily might be debris spraying around the wheel arches, since the tyres will accumulate any and all road materials/objects once hot.

Quote:
Originally Posted by sparoz View Post
However, I was told that they are up to speed on the second lap.
I was (and still am) extremely nervous using competition rubber, given the lack of traction until operating temperature is achieved, and the fact that mistakes or misjudgements no longer occur at high speeds - but they can occur at extreme speeds. So it is a double-edged sword

Perhaps if in doubt, allow more rather than less warm up laps ... then release air after each session until you are at the target pressure, because you might not find the limit of traction (or might not want to find the limit of traction).

Good luck!
Appreciate 0
      07-08-2013, 06:16 AM   #385
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by micha3l View Post
Nice Steve, should be an improvement! Can't wait to see how they work out at the next track day.

Regarding PSS v RE-11, I just switched from PSS to RE-11, a little noisier but dry traction is leaps and bounds better than the PSS, not even in the same league especially on the track.

Coming from RE-11's on my 135 I couldn't wait to get rid of the PSS on my M3, Launch Control definitely got a work out to make them need replacing quicker...
With your car we definitely need as much traction as possible .
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
      07-08-2013, 06:28 AM   #386
sparoz
Brigadier General
sparoz's Avatar
Australia
191
Rep
4,848
Posts

Drives: VO 1///M; Macan Turbo
Join Date: Jun 2008
Location: Sunshine Coast

iTrader: (0)

Quote:
Originally Posted by timbo_3101 View Post
Congratulations on your new tyres

http://www.safercar.gov/nhtsa-saferc...e=any&wear=any

Trofeo R might have slightly greater longevity than Trofeo, but it still would be interesting to see your mileage as a street tyre. The other issue with using it daily might be debris spraying around the wheel arches, since the tyres will accumulate any and all road materials/objects once hot.

I was (and still am) extremely nervous using competition rubber, given the lack of traction until operating temperature is achieved, and the fact that mistakes or misjudgements no longer occur at high speeds - but they can occur at extreme speeds. So it is a double-edged sword

Perhaps if in doubt, allow more rather than less warm up laps ... then release air after each session until you are at the target pressure, because you might not find the limit of traction (or might not want to find the limit of traction).

Good luck!
Thanks! I don't chew my tyres out unlike some others . I tend to get twice as much milage out from my tires for some reason, but probably because I don't got WOT at every opportunity and I looked after the pressure and alignment.

I already have the spraying problem, but I am trying to be a bit more careful when I know the spraying is happening. I tend to pick them up near the edge of the road whilst parked and I am extra gentle when I start my car and tends to clear it out pretty quickly.

The tyres seems to be more sensitive to pressure than heat. As least on the road the cold grip is already better than the PSS. I would be very careful on track as numerous reports on getting greasy when the pressure goes too high and the tyre get thrashed. Camber would also be interesting, but will speed up my suspension if the first track day proof to be problematic. It would be interesting to see how quickly I can find the limit as it is important to find the feel at limit quickly so that I know what to expect.

I know I would need to be more systematic with controlling pressure especially on sprint events, and I might start running the next M3 test day like a sprint event.

Many thanks for all the tips!!
__________________
Macan S Diesel - Carrera White
Macan Turbo - White
1///M - Valencia Orange
Appreciate 0
Post Reply

Bookmarks

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



All times are GMT -5. The time now is 05:11 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST