2008 vs 2009

Discussion in 'SRT Engineering Q/A Area' started by viperfuntime, Jan 12, 2009.

  1. viperfuntime

    viperfuntime Enthusiast

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    I am interested in understanding from SRT techs if the 2008 Coupe and the 2009 Coupe can be differentiated in anyway with respect to the driving experience with the reflash to the drive by wire system (PCM), frame upgrades, and/or the new 6 spoke forged wheels?

    How does the car respond or feel in comparison or is there essentially no difference?

    Does it feel any quicker?
     
  2. mjorgensen Woodhouse

    mjorgensen Woodhouse VCA Member - West

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    There is NO perceivable differences. Depending on what car you get the throttle response can be different from one to the other, I would not worry about that in your decision.
     
  3. SRT Engineers

    SRT Engineers SRT Engineers

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    As Mark stated, there is little or no perceivable difference in the driving experience between a 2008 and a 2009 Viper. Although the engine software and calibration is different for regulatory reasons and refinement, most customers will never notice a difference.

    Some customers have asked if they can install the 2009 calibration in their 2008 vehicles. The answer is no, because the 2009 calibration is not certified for use in 2008 vehicles.

    Note that the MOPAR calibration is based off the 2009 production calibration, but there are significant differences that WILL be perceived by the customer.

    The fuel tank and the rear frame changed slightly between 2008 and 2009 to meet new federal rear impact requirements. However, these changes are minor and add less than three pounds to the weight of the vehicle. There are no other significant weight changes to the vehicle.

    There was one change in mid-model year 2008 (roughly mid-April 2008) that affected weight. We upgraded to solid halfshafts on the Viper ACR, which were required due to the added grip. For the sake of simplicity at the assembly plant, that change was made to all Vipers at that time, and added about 6 lbs per vehicle.

    Also, there is a new optional 6 spoke wheel available for 2009. These wheels are roughly the same weight as the Viper ACR Sidewinder wheels, saving approximately 30 lbs per vehicle over the standard 5 spoke wheels.

    The bottom line is that you should select your Viper based on your preferences for color, wheels, and other options. Both model years are great cars!
     
    Last edited: Jan 13, 2009
  4. bluesrt

    bluesrt Viper Owner

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    what due u mean when u say solid half shaft,completely solid?
     
  5. viperfuntime

    viperfuntime Enthusiast

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    Awesome Response. Thank You Very Much. This Is What I Am Looking For. The Speculation Is Over. Thank You Again.
     
  6. Jeff Monheim

    Jeff Monheim Viper Owner

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    Thank you SRT guys! I like it when you clear things up for us! :D I thought my frame weight was 32 lbs. heavier. :( Now I know it will be just as fast and with the 6 spoke wheels even faster than my 08. :2tu::drive::2tu:
     
  7. VIPER GTSR 91

    VIPER GTSR 91 Viper Owner

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    I am glad you guys are alive and well and still watching these posts. I just bought one of your 09 aero coupes too from Tomball Dodge. This is really good info and keep the new cars rolling. Thanks, Mark.
     
  8. 99FRC

    99FRC Enthusiast

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    What was the production number when the change was made? My last three are218
     

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