10-11-2010, 01:33 AM | #1 |
Drives: 1999 SS Join Date: Jul 2009
Location: Calif
Posts: 56
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Z28 test mule and time frame?
Found this article and it might be useful for all of our excitement about the
Z28 production time frame??? GMI Goes Inside: GM Prototyping Stages GMI goes through the phases of GM development. www.gminsidenews.com September 29, 2010 By: Nick Saporito Recent spy shots of upcoming General Motors products have spurred a lot of debate here on GMI. From the recent shots of the “Cadillac ATS mule” to last week’s Camaro Convertible shots, confusion and debate sets in every time a spy shot is posted. Debate about what the vehicle is and how close to production said vehicle may be are the most prevalent conversations. GMI has put its sources together to generate a detailed account of each vehicle prototyping stage GM products go through before they can arrive at dealership lots. After initial engineering work the first stage an upcoming GM vehicle goes through is the “mule” stage. During this stage they typically take a donor car and strip it of most of its components and then refit the car with components for the new car. In some cases they have to modify the body of the vehicle to fit the components of the new vehicle. Mules are always hand-built units intended for early pre-development and occur nearly a year in advance of more realistic prototypes. The recent Cadillac ATS shots were of it in the mule stage. The donor car in that case was obviously the Cadillac CTS. Mule testers are typically built at GM’s Pre-Production Operations (PPO) facility. After the mule stage, future product programs enter the Integration Vehicle Engineer Release (IVER) phase. IVER testers are also built at the PPO on a modified assembly line. Typically each station on the PPO assembly line represents 5 to 10 manufacturing stations from the vehicle’s normal assembly plant. The purpose of the IVER stage is to test all electronic components of the vehicle and ensure that it is “running” correctly. These are the cars with the mis-matched bumpers, and non-production tail lamps. Next up is the Production Process Validation (PPV) phase. PPV cars are built at the vehicle’s designated assembly plant with the intent on testing the manufacturing process. After the PPV cars are assembly, they are also tested to identify the current level of functionality. The last non-sellable phase of development for a vehicle is the Manufacturing Validation Build (MVB) stage. The first stage is MVBns. During this process the vehicles are, again, built at the designated assembly plant and only last minute tweaking is done to the vehicle at this point. After the round of non-sellable MVB units, the program enters the MVBs stage. These are test vehicles used to verify everything is ready for regular production. MVBs vehicles can be sold. The recent shots of truckloads of Camaro Convertibles, shot by a GMI member, were of MVB units. __________________ |
10-11-2010, 01:43 AM | #2 |
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Basically it's gonna be a while. I say we'll see something at a show early next year and then January 2012 we'll have a Z28. Maybe.
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10-11-2010, 06:10 AM | #3 |
Drives: '10 Camaro SS Join Date: Apr 2009
Location: Gilbert, Arizona
Posts: 1,047
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My guess is the Z28 will be available March 2012
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10-12-2010, 01:18 AM | #4 |
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We were seeing similar shots of the SS a little more than a year before it went into production. Thats the best guideline I can think of
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