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View Full Version : Track report RE55 verse Yoko 050


GTS Listy
22-03-2010, 02:33 PM
Tyres RE55 soft compound with old manufacture date. 265/35/18. Actual tread width was 280mm
Good grip for 2 to 2.5 laps and go off fast. At Hidden valley they did 1.26min average lap times. I found them great for one fast lap but would get slower each lap after. They warmed up very fast and general driving for a warm up lap is plenty. Managed a best when brand new of 1.24.1 as a one off when they were brand new but could generally only do 1.26s normally. Bloody outstanding for ridding under steer but seemed less grippy on the back wheels. In the wet not much good at all. Very slippery tyres in the wet but they are fat and not allot of tread. Great for one lappers if you can get them new and do one perfect lap.


Yoko 050 medium compound fronts and soft on the back. New tyres with a very recent manufacture date. 265/35/18. Actual width 270mm if that.
Great grip out of the packet. After ainitial scrub in they performed very well. They seem to need a proper warm up lap with side to side and also plenty of warming up the brakes as usual. Stragith line grip off the start line is excellent. Just seemed never ending grip and I struggled to even to do a chirpy hitting second after taking off. Ont he first corner they felt like they were on song with great front end and rear end grip. They were very consistent and my lap times averaged 1.24s with clear track. Back end grip was great throughout but on the 3rd laps a little understeer starting to come into play. Part of that was finding the limits on grip too.
Next is the wet. They seemed never ending levels of grip. They were significantly better than street tyres from last time I drive around there in the wet. From the reports from the people watching they said the rooster tail behind the GTS was huge. I am told this generally means the tyres are moving a fair bit of water. Compared to other cars both on semi slicks and street tyres the rooster tail water spray was much bigger. Turn in on the wet was great and really the tyres were better than the driver. I did not have the nads to push it as far as the tyres would go. I was lapping 5 seconds a lap faster than the nearest car.


Summery: If you can nail a error free fast lap after a light warm up lap then the RE55 soft compound would be fine and on par with the medium 050s for one outright fast lap. I used the RE55 soft on a 2 tonne car and they worked fine for a couple of laps. The difference is the 050 medium compound you can do the same speed over three or more laps and if you are up to it dam consistently too. The other thing they seem to offer more back tyre traction off the line and out of corners. (note I have soft compound on the back). In addition the wet weather performance was excellent from the 050s.

Cheers

35R
22-03-2010, 03:51 PM
I have heard and seen nothing but great things about the a050's

nice work.

wish they made them in sizes for the GTR!

Delft Maloo
22-03-2010, 03:56 PM
when i go the 48's from the Yokohama tyre guy at bathurst i asked him about the new 50's, his comments were that the 50's had more grip but weren't as durable as the 48's and the life span will be fractionally shorter.

newguy
24-07-2010, 11:48 AM
Listy..
What compound where you using with the RE55's? They list 3 compounds for the 55's,
WT2
TT
and
SR2

Cheers NG

god084
24-07-2010, 01:21 PM
Listy..
What compound where you using with the RE55's? They list 3 compounds for the 55's,
WT2
TT
and
SR2

Cheers NG

WT2 is soft or wet weather compound
TT is a medium compound
SR2 is a hard compound

newguy
24-07-2010, 02:03 PM
WT2 is soft or wet weather compound
TT is a medium compound
SR2 is a hard compound

Yeah.. was just curious which one Listy was using...if he was using the WT2 (from the way I read his post I assume he was) that would explain why it dropped off so rapidly in the dry.:cheers:

35R
24-07-2010, 07:13 PM
pretty sure Listy was running TT's

newguy
24-07-2010, 07:36 PM
that'd match up with what Bridgestone says... 2-3 laps (supersprint and time attack stuff)

GTS Listy
26-07-2010, 09:05 AM
Mine wer RE55 TT so the soft version.

For the record the times end up getting down to 1.22.5 with these tyres and a added race seat so plenty more driver comfort to get the extra near 2 seconds quicker

Quick summery
Car with RE55 TT best was 1.24.1 with race seat in.
Then they got warn out a little and after cam upgrade LPG etc. Up to 1.26 without race seat
Then new rubber 050 straight away back to 1.24.5 best without race seat
Then add a race seat down to 1.22.5.

Could not believe my eyes that a race seat can reduce your lap times by 2 or more seconds. Nothing else was different.