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New Cobalt GT3

 
Old 01-25-2007, 11:00 PM
  #46  
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Cripes! I rode in Ray's GT3 yesterday... time to start selling off cars so I can get one too

This is a fantastic Porsche! Truely a great track car and daily driver.

The sound of that exhaust in Sport mode is pure *sex*

Congrats to Ray and everyone that gets one of these great cars.
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Old 01-26-2007, 12:55 AM
  #47  
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Congratulations, Ray!

Absolutely beautiful... I Look forward to your usual detailed reports.
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Old 01-26-2007, 02:40 AM
  #48  
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Originally Posted by DreamCarrera
Ray, I LOVE YOUR NEW 3 that is one sweet looking P-Car!!!. Congrats and enjoy her.
Hey thanks, everyone.

I'm really loving this car! I can't stop driving it. I've had it about 6 days and have 400 miles on it now. Other observations:
  • The 'Sport' mode does not seem to change the throttle mapping - which is the way I like it.
  • Pressing the 'Sport' button does not automatically engage the sport damper setting. They are independent now.

I caught a picture of the two blue ballers, waiting for rumble at the track:
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Old 01-26-2007, 02:46 AM
  #49  
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Arrow Details

My salesman gave me a "Service Information" booklet on the new GT3. It describes the changes introduced in the new car. Here are some highlights you may have not seen in the press:
  • Traction Control (or "Anti-Slip Regulation) is achieved by closing the throttle and reducing ignition timing.
  • Engine Drag Torque Control (like on the Carrera GT) will quickly open the throttle if "lateral stability is lost at the rear axle after a downshift." Switching T/C off turns this feature off too.
  • Throttle opening has been enlarged from 76mm to 82mm.
  • New intake manifold has 2 switchable tuning flaps. They switch at these points:

    - under 5400 rpm, both tuning flaps are closed.
    - 5400-6350 rpm, small flap open, big flap closed.
    - over 6350 rpm, small flap closed, big flap opened
    - over 7500 rpm, both flaps are opened

  • New exhaust system employs 2 front mufflers and a single rear muffler (as before), but vacuum controlled valves open to by-pass the front mufflers when under heavy load.
  • Exhaust system volume grew by .42 cubic feet and weight was reduced by 18.7 lbs compared to the previous model.
  • Variocam is infinitely adjustable up to 52 degrees (up from 42 degrees)
  • Transmission (G97.90) has oil spray lubrication using pressurized oil, heat exchanger, steel synchro rings in 3, 4, and 5th gear, and shorter ratios in gears 2-6 than the previous GT3.
  • Shifter throw is about 15% shorter than 996 GT3, and 33% shorter than standard 997.
  • Asymmetric Limited-Slip Differential with lock values of 28% under traction and 40% under deceleration. (996 GT3 was 40% traction, 60% deceleration)
  • Many changes to the chassis, including adjustable anti-roll bars (5 way front, 3 way rear), reinforced components for use with racing tires, spring system "compatible with racing springs".
  • Front suspension "is the proven front axle concept of the 996 GT3-RS."
  • Rear suspension "is basically the same as the regular 997," but with stiffer springs, dampers, and anti-roll bar. Rubber bushings have been replaced with metal bushes (as on the 996 GT3).
  • Steering ratio is variable, up to 13.8:1 after 30 deg of turning.
  • Brake cooling at the front has been improved with new air spoilers and new air deflection vanes. Brake cooling at the rear axle is the same as the 997 Turbo.
  • Brake force distribution has changed. The rear axle has relatively higher braking power. This is supposed to reduce braking distance.
  • Brake booster is same as 997 C4S and 997 Turbo (9-inch tandem boosters).
  • The rear axle uses 5mm wheel spacers to widen the track.

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Old 01-26-2007, 04:22 AM
  #50  
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Congrats Ray! Looking forward to seeing you at the track again as the weather clears up!
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Old 01-26-2007, 10:17 PM
  #51  
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ray, what was your car doing at Colin"s? :-) I looked for your yellow bird, did Barrier sell it already? See you Wednesday night.
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Old 01-26-2007, 10:31 PM
  #52  
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Beautiful, do you have any more pictures available?

Love it
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Old 01-26-2007, 10:38 PM
  #53  
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Originally Posted by Ray G
I caught a picture of the two blue ballers, waiting for rumble at the track:
Should be fun
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Old 08-14-2007, 08:27 PM
  #54  
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just heard from the dealer my CB GT3 has arrived after it's euro delivery odessy ...

a note on the rear brake bias on the 997 GT3 ... this pretty much wore out a set of PCCB pads on my car after 50 laps of the nordschleife! sport+sport PASM+TC off ...

you have been warned ...
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