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Old 3 Feb 2018, 03:11 (Ref:3797911)   #1201
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Originally Posted by fieldodreams79 View Post
They (MWM) and I mentioned the "Older tires" and not a special tire for a special track being counterpoints for lack of fault on behalf of Conti, not as a defense.
I haven't listened yet either, and at the risk of sounding like an idiot, did they mean the tire construction design was 5 years old or the tires themselves were literally 5 years old?
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Old 3 Feb 2018, 03:19 (Ref:3797912)   #1202
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Damian Baldi should be qualifying in the top 5 on the gridDamian Baldi should be qualifying in the top 5 on the gridDamian Baldi should be qualifying in the top 5 on the grid
Interesting

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Aggressive toe, camber and pressure settings were selected by some teams to generate the heat early, and give performance. According to Continental, one team admitted to them that they had packed out the dampers leaving the tyre sidewall as the only form of suspension. Three teams were warned that they would not receive any more tyres until they changed their set up to bring them into line with Continental’s recommended limits, but one said that they had their failures after raising the tyre pressures to Continental’s prescribed limits.

http://www.racecar-engineering.com/n...olex-24-hours/


And this is and interview with about the tyre in 2017 just before Daytona

http://sportscar365.com/imsa/contine...vin-fanzdozzi/


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What are the main differences between the two compounds Continental uses (Daytona vs. Road Course)?

“The main differences are between the Daytona tire and the Road Course tire is the belt package design. Most people believe that Daytona requires a tougher compound, but we’ve been able to use the same compound for all applications.

“The key to durability on the high banks of Daytona is to protect the shoulder of the tire, as the intense banking loads combine with aero downforce loads at high speed. These loads can be devastating to a typical tire, but we’ve developed a solution that works to optimize load integrity.”
.

Last edited by Damian Baldi; 3 Feb 2018 at 03:40.
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Old 3 Feb 2018, 03:37 (Ref:3797914)   #1203
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I haven't listened yet either, and at the risk of sounding like an idiot, did they mean the tire construction design was 5 years old or the tires themselves were literally 5 years old?
I assume design...
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Old 3 Feb 2018, 03:53 (Ref:3797916)   #1204
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I assume design...
That's what I assumed too but, just asking. Maybe I've just heard too much stupid **** at work this week and am always thinking the worst.
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Old 3 Feb 2018, 07:14 (Ref:3797949)   #1205
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I think the deign is many years old as they haven’t needed to change it.

On IMSA Radio at some point during the night they reported that someone from a team thought that some of the tyres were from last year’s race.
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Old 4 Feb 2018, 18:59 (Ref:3798450)   #1206
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dwh43scale should be qualifying in the top 5 on the griddwh43scale should be qualifying in the top 5 on the grid
Rolex 24 Heritage gallery including Dan Gurney Lola T70.

https://flic.kr/s/aHsmdkV4AA

Conti grid walk gallery

https://flic.kr/s/aHsmerYpep

Race galleries to follow
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Old 4 Feb 2018, 19:15 (Ref:3798452)   #1207
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So, our third trip to Daytona for the Rolex (1999, 2017 and 2018). Of course, the last couple of years, we have seen a much bigger event, many more people and the new stadium building as well.

After parking outside last year, we got the upgrade to infield parking which was a real boon. So much so that we didn't walk round to the grandstands.

Borrowed a step ladder from our VRBO hosts which gave excellent views for photos over the fence.

Already planning to return next year - IMSA and Conti seem to be (overall) on an upward trajectory, so we want to see it while we can.

Despite the IMSA Radio team's idiosyncrasies, I'd much rather have them available on FM radio to listen to than not !
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Old 4 Feb 2018, 20:12 (Ref:3798462)   #1208
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I think the deign is many years old as they haven’t needed to change it.

On IMSA Radio at some point during the night they reported that someone from a team thought that some of the tyres were from last year’s race.
I would expect that some of the tires were left over from years past. just trying to empty out the warehouse. Does the rubber go bad?
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Old 4 Feb 2018, 20:48 (Ref:3798465)   #1209
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Yes. Obviously different compounds become garbage at different rates, so who knows how long each tire takes.

And I'm sure different tire companies have different definitions of too old to safely race on as well as too old to be seen raced on.
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Old 4 Feb 2018, 22:28 (Ref:3798483)   #1210
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I would expect that some of the tires were left over from years past. just trying to empty out the warehouse. Does the rubber go bad?
I don’t know if these tyres degrade significantly over the year, but tyres do over time. Whether it is one year or ten years depends. I wouldn’t be happy with Road or race tyres over a few years old and I’m not pushing to that limit.
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Old 4 Feb 2018, 22:40 (Ref:3798486)   #1211
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Damian Baldi should be qualifying in the top 5 on the gridDamian Baldi should be qualifying in the top 5 on the gridDamian Baldi should be qualifying in the top 5 on the grid
and we should add, how the tyres were stored. As somebody else said here, maybe Continental is using the existing stock they have instead make all new tyres, because they are leaving. This is all just guessing.

I think the RaceEngineering article is more convincent about what happaned with the tyres.
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Old 5 Feb 2018, 00:16 (Ref:3798509)   #1212
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Yeeah, racing slicks need to be stored in temperature / climate controlled conditions in order to remain stable. The cold in particular tends to degrade them. I'm not sure how much for safety and how much for performance, but it is a thing.
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Old 5 Feb 2018, 00:32 (Ref:3798518)   #1213
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Rolex 24 Heritage gallery including Dan Gurney Lola T70.

https://flic.kr/s/aHsmdkV4AA

Conti grid walk gallery

https://flic.kr/s/aHsmerYpep

Race galleries to follow
Nice! Thx for sharing!
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Old 5 Feb 2018, 08:38 (Ref:3798611)   #1214
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Still too many failures on cars that ran within their (Continental's) limits even if they said it was a new tire. There's something wrong with them and it's pretty damning imo they say the tires were from last year. I bet a lot of teams are looking forward to using Michelin next year.
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Old 5 Feb 2018, 14:35 (Ref:3798697)   #1215
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Still too many failures on cars that ran within their (Continental's) limits even if they said it was a new tire. There's something wrong with them and it's pretty damning imo they say the tires were from last year. I bet a lot of teams are looking forward to using Michelin next year.
BMW Motorsport, Risi Competizione, and F1 2006 beg to differ

It seems track specific, and related to the banking loads at Daytona which we don't see anywhere else.
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Old 5 Feb 2018, 17:34 (Ref:3798753)   #1216
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How many blowouts did the Michelins have in GTLM?
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Old 5 Feb 2018, 18:13 (Ref:3798766)   #1217
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if you watch the race replay on you tube and pay attention to the WTR onboard when ranger was driving,youll see he was attacking the curbs at the bus stop.at times sounded like the car would slam onto the track after hitting the curbs...

same with pipo on a few occations
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Old 5 Feb 2018, 18:59 (Ref:3798790)   #1218
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if you watch the race replay on you tube and pay attention to the WTR onboard when ranger was driving,youll see he was attacking the curbs at the bus stop.at times sounded like the car would slam onto the track after hitting the curbs...

same with pipo on a few occations
Every car was that had a legit Pro driver at the wheel.

Attacking the bus stop curbs -- assuming you keep out of the dirt and have appropriate tire pressures (not on your out lap w/ new tires), there's no harm to the tire in attacking all the curbs at Daytona.

-mike
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Old 5 Feb 2018, 21:32 (Ref:3798827)   #1219
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Is that Continental's 'unofficial' view as well?
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Old 21 Feb 2018, 07:10 (Ref:3802832)   #1220
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Saturday daytime photos. Warning - a rather large gallery ! Night and Sunday to follow shortly.

https://www.flickr.com/gp/dwh38/Wu58VQ
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Old 21 Feb 2018, 14:23 (Ref:3802915)   #1221
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Saturday daytime photos. Warning - a rather large gallery ! Night and Sunday to follow shortly.

https://www.flickr.com/gp/dwh38/Wu58VQ
Thanks very much.
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Old 22 Feb 2018, 01:08 (Ref:3803052)   #1222
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Saturday daytime photos. Warning - a rather large gallery ! Night and Sunday to follow shortly.
Thank you! beautiful pictures
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Old 24 Feb 2018, 14:28 (Ref:3803615)   #1223
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Old 24 Feb 2018, 15:04 (Ref:3803622)   #1224
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Old 26 Feb 2018, 20:00 (Ref:3804131)   #1225
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Final installment ! Again, rather a lot, but hopefully you will enjoy them. Now do we come across for Daytona next year or Sebring ... or both !
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