Gary: question about TR test results...
Thread Starter
AudiWorld Expert
Joined: Feb 2001
Posts: 27,110
Likes: 4
From: Michigan, USA
Gary: question about TR test results...
I'm looking at these two UHP all-season tire tests, both done on E90 328i; one in August, one in May.
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=115
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=106
The August one shows:
<img src="http://www.tirerack.com/images/tires/tests/mi_psas_plus_rd/chart5.gif">
And May one shows:
<img src="http://www.tirerack.com/images/tires/tests/bfg_gForce_SuperSport_AS/chart5.gif">
Why such significant difference in wet stopping distance for RE960 between the two tests (104.9 ft vs 92.4 ft)? The only variable that may not have been kept constant is ambient temperature.... but there surely must be something else at play?
Also a very big difference in Average Cornering (g-Force) in the wet (0.79 vs 0.88).
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=115
http://www.tirerack.com/tires/tests/testDisplay.jsp?ttid=106
The August one shows:
<img src="http://www.tirerack.com/images/tires/tests/mi_psas_plus_rd/chart5.gif">
And May one shows:
<img src="http://www.tirerack.com/images/tires/tests/bfg_gForce_SuperSport_AS/chart5.gif">
Why such significant difference in wet stopping distance for RE960 between the two tests (104.9 ft vs 92.4 ft)? The only variable that may not have been kept constant is ambient temperature.... but there surely must be something else at play?
Also a very big difference in Average Cornering (g-Force) in the wet (0.79 vs 0.88).
Former Vendor
Joined: Jun 2003
Posts: 5,233
Likes: 0
Re: Gary: question about TR test results...
Brake pad wear/type, amount of water on the track (pouring rain is more effective or high humidity is more effective than just our sprinkler system alone on a dry day), and yes, ambient temps.
Thread Starter
AudiWorld Expert
Joined: Feb 2001
Posts: 27,110
Likes: 4
From: Michigan, USA
Well, OK, but wouldn't those variables similarly affect all the tires?
Yet the two tests show that:
1) RE960 has gotten significantly worse results from May to August
while
2) GY F1 A/S has actually improved its wet stopping performance (from 100.4ft in May to 96.6ft in August)
Sorry, maybe I'm just nitpicking.
1) RE960 has gotten significantly worse results from May to August
while
2) GY F1 A/S has actually improved its wet stopping performance (from 100.4ft in May to 96.6ft in August)
Sorry, maybe I'm just nitpicking.
Former Vendor
Joined: Jun 2003
Posts: 5,233
Likes: 0
Re: Well, OK, but wouldn't those variables similarly affect all the tires?
Similarly, but not the same exactly. Keep in mind that these tires, while in same catagory do come from different manufacturers with different compounds, tread patterns, etc that could react differently to changes in conditions.
No apologies needed for nitpicking
No apologies needed for nitpicking
Thread
Thread Starter
Forum
Replies
Last Post
ski ya later
Wheels & Tires Discussion
2
May 7, 2004 07:37 AM
