Trofeo R vs RE-71r
07-12-2016, 09:32 AM
#11
If only I had the money to take two sets of wheels with same size trofeo and re-71r to the track to get you guys some empirical data (not sure I'm a consistent enough driver to pull this off anyway)...maybe we can get the guys that did the re-71r vs nt01 to become the new defacto grassroots motorsports tire lap time journalist and convince them to test the trofeo R...they are both a good price. I would imagine the trofeo and re-71r is more of a drive to the event on them tire, the hoosiers you'd be more inclined to change out at the track at the beginning/end of the day.
I wonder how they assess what a point is...ie. is it a perceived/subjective advantage or an actual certain amount of an advantage over a one minute or two minute course on a particular baseline car? It can purely be based on the treadwear rating, can it?
I wonder how they assess what a point is...ie. is it a perceived/subjective advantage or an actual certain amount of an advantage over a one minute or two minute course on a particular baseline car? It can purely be based on the treadwear rating, can it?
07-13-2016, 08:55 PM
#12
Originally Posted by michaelnyden' timestamp='1468269942' post='24014099
No class, just HPDE, time attack against myself basically...just wondering how much quicker the trofeo's might be over re-71r's since it's time to purchase a new set of track tires...
1) The following DOT-approved R-compound tires: BFG R1S, Goodyear Eagle RS AC (auto-
cross), Hoosier A7, Hankook Z214 (C90 & C91 compounds only), Hoosier Wet DOT (if
used in dry conditions—see section 5.6) +22
2) The following DOT-approved R-compound tires: Hoosier A6 +17
3) The following DOT-approved R-compound tires and those with a UTQG treadwear rating of
40 or less not listed otherwise in these rules: BFG R1, Goodyear Eagle RS, Hankook Z214
(C71, C70, C51, C50), Hoosier R7, Kumho V710 +10
4) The following DOT-approved R-compound tires: Hoosier SM7 +9
5) The following DOT-approved R-compound tires: Hoosier R6, Hoosier SM6 (note:
Continental Tire Sportscar Challenge EC-Dry tires (225, 245, 275) OK) +8
6) The following DOT-approved R-compound tires: Toyo Proxes RR, Hankook TD,
Pirelli Trofeo R +7
7) The following DOT-approved tires and those R-compound tires with a UTQG treadwear
rating over 40: BFG Rival S, Bridgestone RE071-R, Maxxis RC-1 (examples: Kumho V700,
Kumho V720, Michelin Pilot Sport Cup & MPS Cup 2, Nitto NT01, Pirelli PZero Corsa,
Toyo R888, Toyo RA-1, Yokahama A048, etc.) +6
8) DOT-approved (non-R-compound) tires with a UTQG treadwear rating of 120-200
(examples: BFG g-Force Rival, Toyo R1R, Dunlop Direzza Sport Z1 Star Spec,
Bridgestone Potenza RE070, Kumho Ecsta XS, Yokohama Advan A046 & Neova AD08,
Hankook R-S3) +2
cross), Hoosier A7, Hankook Z214 (C90 & C91 compounds only), Hoosier Wet DOT (if
used in dry conditions—see section 5.6) +22
2) The following DOT-approved R-compound tires: Hoosier A6 +17
3) The following DOT-approved R-compound tires and those with a UTQG treadwear rating of
40 or less not listed otherwise in these rules: BFG R1, Goodyear Eagle RS, Hankook Z214
(C71, C70, C51, C50), Hoosier R7, Kumho V710 +10
4) The following DOT-approved R-compound tires: Hoosier SM7 +9
5) The following DOT-approved R-compound tires: Hoosier R6, Hoosier SM6 (note:
Continental Tire Sportscar Challenge EC-Dry tires (225, 245, 275) OK) +8
6) The following DOT-approved R-compound tires: Toyo Proxes RR, Hankook TD,
Pirelli Trofeo R +7
7) The following DOT-approved tires and those R-compound tires with a UTQG treadwear
rating over 40: BFG Rival S, Bridgestone RE071-R, Maxxis RC-1 (examples: Kumho V700,
Kumho V720, Michelin Pilot Sport Cup & MPS Cup 2, Nitto NT01, Pirelli PZero Corsa,
Toyo R888, Toyo RA-1, Yokahama A048, etc.) +6
8) DOT-approved (non-R-compound) tires with a UTQG treadwear rating of 120-200
(examples: BFG g-Force Rival, Toyo R1R, Dunlop Direzza Sport Z1 Star Spec,
Bridgestone Potenza RE070, Kumho Ecsta XS, Yokohama Advan A046 & Neova AD08,
Hankook R-S3) +2
The Trofeo R at +7, the Pilot Cup, Pilot Cup 2, Rival S, and RE71r all at +6 seem to support the hypothesis is that there is very little to chose between them on a track day basis. Longevity and consistency over the entire session would seem to be key.
07-13-2016, 11:34 PM
#13
http://www.prima-racing.com/update-m...vs-nitto-nt01/
He then compared the NT-01 and RE-71R
http://www.prima-racing.com/bridgest...king-part-two/
S2kc guys confirmed the same using telemetry data with peak g-forces, sustained g-forces, and laptimes.
Auto-x seems to confirm that you need to be on RE-71Rs or Rival-S to win - RS3s aren't even in the running anymore.
07-14-2016, 03:40 AM
#14
I just replaced the craptastic Michelin PSS (POS?) street tires on my 500+ hp FD with RE71R. Ran them at Talledega Gran Prix Raceway (aka "little Talledega"). Lateral grip was great, drive grip good/OK but not as good as NT01. At the end of the day the outside rear was worn beyond the treadwear indicators 
Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done 
I was hooning it up a bit, but still!
I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
07-14-2016, 05:36 AM
#15
I just replaced the craptastic Michelin PSS (POS?) street tires on my 500+ hp FD with RE71R. Ran them at Talledega Gran Prix Raceway (aka "little Talledega"). Lateral grip was great, drive grip good/OK but not as good as NT01. At the end of the day the outside rear was worn beyond the treadwear indicators Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!
I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
The RE71r is generally only available in smaller sizes, the largest being a 285/30-18 and a 295/35-19. The NT01 on the other hand has mostly large size, going to at least 315 and up to 335 widths in 17, 18, 19, and 20 inch diameters. They are probably designed around different weight and HP cars.
What sizes are you planning to use?
07-14-2016, 05:39 AM
#16
I just replaced the craptastic Michelin PSS (POS?) street tires on my 500+ hp FD with RE71R. Ran them at Talledega Gran Prix Raceway (aka "little Talledega"). Lateral grip was great, drive grip good/OK but not as good as NT01. At the end of the day the outside rear was worn beyond the treadwear indicators Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!
I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
07-14-2016, 07:48 AM
#17
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That kind of the same experience that I got from the RE71R. Coming from RS-3 grip was about the same or slightly better but the Potenzas are better on street. However just after two track events and less than 800 miles my Potenzas are below the wear mark.
I'm also in the debate of the trofeo tires. I would like something better than RE71R or RS-3 but not a Hoosier slicks either. The halnkooks TD and the NT01 are on my list
I'm also in the debate of the trofeo tires. I would like something better than RE71R or RS-3 but not a Hoosier slicks either. The halnkooks TD and the NT01 are on my list
07-14-2016, 08:08 AM
#18
I just replaced the craptastic Michelin PSS (POS?) street tires on my 500+ hp FD with RE71R. Ran them at Talledega Gran Prix Raceway (aka "little Talledega"). Lateral grip was great, drive grip good/OK but not as good as NT01. At the end of the day the outside rear was worn beyond the treadwear indicators Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!
I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
Inside rear was at 3/32. Less than 1000 street miles and one track day, rear tires done I was hooning it up a bit, but still!I ran NT01s a couple of years ago as street during track season, I found they were pretty good compromise street/track tires. I would bet they are a bit quicker than RE71R at the track on higher power/weight cars. They were fine for two events (four track days), after that rear grip began to deteriorate. At the fourth event, 7th/8th track days on them, no rear grip, a real handful!
Short version: RE71R might be equivalent to NT01 for modest power/weight cars for lap times, but I would bet the NT01s are quicker for higher power/weight. RE71R in my case had less than half the useful lifetime of NT01s. Might be something to consider...
I'm about to replace my rear RE71Rs with NT01s, keeping RE71Rs up front, gonna run the car at Mosport like that. Could be interesting...
07-14-2016, 12:34 PM
#20
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