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Old 20 Sep 2013, 09:00 (Ref:3306494)   #2401
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The coupe is now center position for the driver. So... single seater but room for two sportscar?
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Old 20 Sep 2013, 09:41 (Ref:3306516)   #2402
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The coupe is now center position for the driver. So... single seater but room for two sportscar?
Driver ans seating for two children, so it is actually a three-passenger, sort of like the old McLaren F1 but built for racing, not the street.

Or, maybe, seating for one average American?
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Old 20 Sep 2013, 09:50 (Ref:3306520)   #2403
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Driver ans seating for two children, so it is actually a three-passenger, sort of like the old McLaren F1 but built for racing, not the street.

Or, maybe, seating for one average American?
Someone forgot the roof rack, .
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Old 20 Sep 2013, 11:42 (Ref:3306562)   #2404
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Yes.
Can't wait to hear how that was accomplished.
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Old 20 Sep 2013, 17:01 (Ref:3306663)   #2405
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First you need to define what a sportscar is. If it is a vehicle with 2 seats and 4 wheels than the Deltawing is as much a sportscar as most other prototypes whose ability to seat 2 normal people is questionable. Perhaps for 2 seater we should read " squeeze 2 slim hipped individuals into driving compartment".


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Old 20 Sep 2013, 18:32 (Ref:3306727)   #2406
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Looks a tad crowded in there.
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Old 22 Sep 2013, 11:32 (Ref:3307367)   #2407
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Cota onboard: http://www.youtube.com/watch?v=OXOqkWn7cpI

Does it have traction control? The spyder (he he) version lookd really loose on track when it went nearer to its limits, which is a positive thing considering how stable and even boring LMPs look.
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Old 24 Sep 2013, 04:39 (Ref:3308549)   #2408
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The coupe is a step backwards so far. Kinda disappointed when watching the alms race it was having trouble passing GTE's. Its best lap was a 2:03.266, compared to 2:05.035 for the fastest GTE.

And if you watched Austin's wec race the lmp's were sliding and spinning. I don't think taking turns flat out is boring, sliding is for drift cars or rally events.

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Old 24 Sep 2013, 11:48 (Ref:3308699)   #2409
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And if you watched Austin's wec race the lmp's were sliding and spinning. I don't think taking turns flat out is boring, sliding is for drift cars or rally events.
I did not mean sliding=drifting, but small sideways moments here and there, when the car simply goes over its limit and driver has to use opposite lock. Those just seem to happen very rarely in dry conditions, at least in a way that it is visible in television. Largest reason has to be traction control.
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Old 24 Sep 2013, 12:52 (Ref:3308737)   #2410
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During the ALMS broadcast the announcers were talking a lot about how hard Antonio Garcia was working to keep the Corvette on track, while the Viper seemed to have a lot more traction.

I guess if I had been watching more closely I would have seen his hands flying around the wheel, or the tiny differences in line between laps, but with modern tires, I am not sure that there is a wide range of lessening grip ... more like, the car adheres or the car slides out of control.

When we do see a driver lose and catch a car it is over in a fraction of a second---things happen too fast and the forces are too great for the kinds of fishtailing we might remember from older tires.

Just a thought, no actual scientific research to back that up.
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Old 24 Sep 2013, 13:20 (Ref:3308750)   #2411
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I'm not expecting to see 917 kind of handling, and actually I'm mainly talking about corner exists. Modern tyres are good, but it shouldn't affect this part that much. And of course wheels spinning is not the fastest way to get around a corner but nobody can have so perfect throttle input all the time they just never give too much. Maintaining optimal slip ratio is easy for a computer (traction control) though... The difference became pretty obvious in F1 when they banned traction control for 2009 - suddenly a lot more fighting with the steering wheel when accelerating out of a corner.

Actually in the final laps when Toyota was behind the other Audi and lapping it, it got a big slide in the last turn (properly sideways). The thing that I can't even remember when was last time I saw similar one speaks for itself.

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Old 25 Sep 2013, 00:37 (Ref:3308996)   #2412
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Someone forgot the roof rack, .
That might make it look better... nah, it won't.

It looked like some RC car when it drove past me in the CoTA paddock.
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Old 25 Sep 2013, 01:52 (Ref:3309024)   #2413
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Something I noticed while watching the replay of COTA. At Road America, the DW-Spyder was the quickest car on the straights by a large margin. At COTA with the DW-Coupe, the car just got passed by Dyson like it was standing still (on a long straight). Something is a-miss here...
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Old 25 Sep 2013, 15:48 (Ref:3309262)   #2414
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http://sportscar365.com/wec/lemans/p...rn-to-le-mans/
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According to DeltaWing team boss Dave Price, the American Le Mans Series founder had actually lodged an entry request for the DeltaWing coupe this year. However, it was denied by the Automobile Club de l’Ouest on the grounds that it did not fit the regulations of any class.
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Old 25 Sep 2013, 16:45 (Ref:3309276)   #2415
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Something I noticed while watching the replay of COTA. At Road America, the DW-Spyder was the quickest car on the straights by a large margin. At COTA with the DW-Coupe, the car just got passed by Dyson like it was standing still (on a long straight). Something is a-miss here...
The canopy on the coupé version must produce a lot of drag.
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Old 25 Sep 2013, 17:59 (Ref:3309295)   #2416
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The canopy on the coupé version must produce a lot of drag.
The coupe is said to have less drag. I don;t know what the issues were at cota, but new car teething issues were likely at play. They hadn't done much of any testing prior to the weekend.
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Old 25 Sep 2013, 18:27 (Ref:3309299)   #2417
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They couldn't get it to the end of an ALMS race and they wanted to go back to Le Mans? It would have made the JLOC Lambos look reliable!
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Old 25 Sep 2013, 18:51 (Ref:3309308)   #2418
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What part of the DW's performances at the start of the year made Don think it was ready for LM?

Well done to the ACO for refusing the shoe-horn it into the race.
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Old 26 Sep 2013, 14:53 (Ref:3309627)   #2419
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The canopy on the coupé version must produce a lot of drag.
You're joking, right? )) More like weight.

Is there any info about how the brand new coupe tub affected the overall weight of this double-sidecar bike?
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Old 26 Sep 2013, 15:27 (Ref:3309640)   #2420
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You're joking, right? )) More like weight.

Is there any info about how the brand new coupe tub affected the overall weight of this double-sidecar bike?
I thought the tub was the same, so where's this excess weight supposed to come from?
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Old 26 Sep 2013, 15:28 (Ref:3309642)   #2421
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I thought the tub was the same, so where's this excess weight supposed to come from?
Nope, brand new tub/design.









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Old 26 Sep 2013, 16:16 (Ref:3309657)   #2422
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Is there any question that a tub with a roof weighs more than one without? Seems to me there is more material. Not only would a tub with a roof weigh more I'd bet the CG is also higher.
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Old 26 Sep 2013, 17:18 (Ref:3309682)   #2423
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Is there any question that a tub with a roof weighs more than one without? Seems to me there is more material. Not only would a tub with a roof weigh more I'd bet the CG is also higher.
I wouldn't be surprised if the CG is higher, with that canopy going through the air.

As it is these are the specs for the previous version of the DeltaWing

http://www.deltawingracing.com/tech-specs/

and as far as I know they haven't released the specs for the Coupé version.
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Old 26 Sep 2013, 17:29 (Ref:3309688)   #2424
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Just wondering how it is affecting the overall dynamics and balance of the car? Bowlby designed an open-cockpit racer with a very low CoG. The roof changes the dynamics in a lot of ways, it would seem. Also wonder if a raked windshield that was concave and followed and extended the low area between the front wheels would make it slippier?
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Old 26 Sep 2013, 17:47 (Ref:3309697)   #2425
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Some more interesting nuggets of info there. Is the new engine they are hoping to debut at VIR the carbon fiber unit? Interesting to hear the current weight is 525 kg. Also, Price says they will run the car next season in uscc even if they sell other chassis. The continental tires will be tested starting after Petit, which will be a big part of the P class balance for the DW next season.
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I wouldn't be surprised if the CG is higher, with that canopy going through the air.

As it is these are the specs for the previous version of the DeltaWing

http://www.deltawingracing.com/tech-specs/

and as far as I know they haven't released the specs for the Coupé version.

Not exactly tech specs, but they have a stated weight of 525kg on the coupe.
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