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Old 14 Feb 2018, 17:00 (Ref:3801324)   #3286
WolfsburgRS
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Originally Posted by Mike Hedlund View Post
Michelin only puts their best tires in open tire classes (IMSA/WEC) because in WEC P2 and GTE-AM there is a "tire claim rule". They don't want Dunlop getting their hands on their confidential tires -- it's also why the tires are returned to Michelin after sessions and in the event of failures and teams can be fined for "losing" them. The "confidential" Dunlops are very good, but not as good as the Michelins so they aren't afraid of Michelin deconstructing/reverse-engineering the tires.

The Dunlop "customer" tires are better than the Michelin "customer".

-mike
Mike, this may be something you aren't familar with, but do you know if Michelin customer teams are able to keep tires and sell them once they're "done" with them? Lots of contis would end up on sites like usedracingtires.com. A "not that great" barely used racing slick makes for a very very good HPDE tire
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Old 15 Feb 2018, 02:41 (Ref:3801420)   #3287
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Originally Posted by WolfsburgRS View Post
Mike, this may be something you aren't familar with, but do you know if Michelin customer teams are able to keep tires and sell them once they're "done" with them? Lots of contis would end up on sites like usedracingtires.com. A "not that great" barely used racing slick makes for a very very good HPDE tire
The generic off the shelf customer tire (that I'm sure IMSA will be supplying to Prototype and GTD teams) is available for purchase by anyone and Michelin doesn't care what you do with it after you buy it (same as Conti/Pirelli).

Think of the "confidential" tire as more of a lease. The teams who use them don't own them to re-sale.

-mike
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Old 15 Feb 2018, 17:43 (Ref:3801639)   #3288
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WolfsburgRS should be qualifying in the top 10 on the grid
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Originally Posted by Mike Hedlund View Post
The generic off the shelf customer tire (that I'm sure IMSA will be supplying to Prototype and GTD teams) is available for purchase by anyone and Michelin doesn't care what you do with it after you buy it (same as Conti/Pirelli).

Think of the "confidential" tire as more of a lease. The teams who use them don't own them to re-sale.

-mike
Gotcha, thanks.
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Old 15 Feb 2018, 17:50 (Ref:3801645)   #3289
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canaglia should be qualifying in the top 10 on the gridcanaglia should be qualifying in the top 10 on the grid
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Originally Posted by Mike Hedlund View Post
The generic off the shelf customer tire (that I'm sure IMSA will be supplying to Prototype and GTD teams) is available for purchase by anyone and Michelin doesn't care what you do with it after you buy it (same as Conti/Pirelli).

Think of the "confidential" tire as more of a lease. The teams who use them don't own them to re-sale.

-mike
Yeah basically, like lmp1, dpi and lmp2 engines.
Remember in late 2016, WTR team sold one of their corvette DP to a private collector without any engine inside.
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Old 15 Feb 2018, 17:57 (Ref:3801649)   #3290
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Yeah basically, like lmp1, dpi and lmp2 engines.
Remember in late 2016, WTR team sold one of their corvette DP to a private collector without any engine inside.
There's been more than a few. The Mitty paddock at Road Atlanta last spring had at least 3 Vette DPs and multiple older spec DPs. The race winning Whelen Vette DP was racing the next April in HSR, if you believe the signage exactly as was raced at Petit.
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Old 22 Feb 2018, 21:05 (Ref:3803273)   #3291
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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 grid
I forgot to share this

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"Alongside their LMP1 programme, Mecachrome are looking at the necessary modifications to build an engine (based on the 3.4-litre V6) for the IMSA WeatherTech SportsCar Championship. The French engine manufacturer has also been selected by PSA Motorsport for the machining and assembly of its four-cylinder turbocharged engines issued from the PSA range for the new C3 R5.”

source
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Old 2 Jul 2018, 15:13 (Ref:3834314)   #3292
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After reading some comments on the DPi/LMP2 balance and the time by IMSA seemingly needs until the classes are balanced (this and last year) whatever the reason may be.
Because of the development of the DPi cars they had an advantage at the beginning of the season after it seemed that the different classes were balanced at the end of last season.
I seem to remember reading that after some unspecified time DPi development would be frozen too and the cars homologated. Has this idea been dropped or is this still planned to do?
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Old 2 Jul 2018, 16:04 (Ref:3834320)   #3293
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After reading some comments on the DPi/LMP2 balance and the time by IMSA seemingly needs until the classes are balanced (this and last year) whatever the reason may be.
Because of the development of the DPi cars they had an advantage at the beginning of the season after it seemed that the different classes were balanced at the end of last season.
I seem to remember reading that after some unspecified time DPi development would be frozen too and the cars homologated. Has this idea been dropped or is this still planned to do?
I believe the homologation was set last year, they were on draft homologation but required submission of parts and why they're being changed to IMSA for testing. I don't know if it was finalized at some point but I would assume Mazda and Acura are running on draft this year. Mazda with their Joest attempt to fix a pig and Acura getting the same treatment as the previous DPis.

Does anyone have set proof, not the usual I heard from X, that homologation was ever set or that development is still ongoing? It's not like we hear every race about new parts they've been testing and the new spec car but then the FoxSports crews aren't that diligent on a good day
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Old 2 Jul 2018, 20:20 (Ref:3834352)   #3294
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The burning Mazda is still the cover photo on Tapatalk for this thread.
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Old 3 Jul 2018, 01:49 (Ref:3834382)   #3295
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I believe the homologation was set last year, they were on draft homologation but required submission of parts and why they're being changed to IMSA for testing. I don't know if it was finalized at some point but I would assume Mazda and Acura are running on draft this year. Mazda with their Joest attempt to fix a pig and Acura getting the same treatment as the previous DPis.

Does anyone have set proof, not the usual I heard from X, that homologation was ever set or that development is still ongoing? It's not like we hear every race about new parts they've been testing and the new spec car but then the FoxSports crews aren't that diligent on a good day

My closest IMSA source retired from their job in the offseason, so the following is all what I've heard through the grapevine. In short, take this with a grain of salt.


What I've heard is that Nissan and Cadillac have locked in a homologation of all parts at Daytona, and must get IMSA approval to install any new design parts.


Acura supposedly does not need to homologate until next year because this is their first year, and Mazda is being given room to work both because the base chassis also required a complete overhaul and because they partnered with a new team.


Like I said, I no longer have a reliable source, so if anyone with better info can confirm or refute it would be much appreciated.
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Old 3 Jul 2018, 21:35 (Ref:3834480)   #3296
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JDC are reportedly looking at a possible Hyundai DPI program if they can't work out a deal with HPD/Acura, or Mazda, Cadillac or Nissan. This per Racer Magazine.
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Old 3 Jul 2018, 22:04 (Ref:3834484)   #3297
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JDC are reportedly looking at a possible Hyundai DPI program if they can't work out a deal with HPD/Acura, or Mazda, Cadillac or Nissan. This per Racer Magazine.

Per Marshall Pruett, so take it with a grain of salt. I like Pruett most of the time, but he's been pushing a LOT of non-stories about alleged new DPi manufacturers for the past couple years. Any news of a possible new manufacturer joining DPi should be taken with a "believe it when I see it" mentality at this point.

(especially when it's one that isn't already entered in GTLM or GTD)
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Old 3 Jul 2018, 23:06 (Ref:3834491)   #3298
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DSC are also reporting on it now, though it's just a hook up to the Racer story.
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Old 4 Jul 2018, 00:23 (Ref:3834500)   #3299
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If and when the classes are split (which would be awesome if there are sustainable numbers), I'd still like to see the P2 cars be able to modify to compete in DPi if they want to. Allow them to use whatever dampers they want and, I don't care what Gibson says, that 3.4L has more in it. I still want to see true privateers compete in the top class and that might be the ticket.
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Old 4 Jul 2018, 09:48 (Ref:3834560)   #3300
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If and when the classes are split (which would be awesome if there are sustainable numbers), I'd still like to see the P2 cars be able to modify to compete in DPi if they want to. Allow them to use whatever dampers they want and, I don't care what Gibson says, that 3.4L has more in it. I still want to see true privateers compete in the top class and that might be the ticket.
yeah, but the whole point of the P2 portion of the P class is that Euro/global cars can come over and race unmodified. letting IMSA P2s do Anything different might hinder that ... though I cannot imagine anything hinders it more than the double-whammy of bad BoP and Continental tires.
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