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Sedans Pontiac G8 Article Comments - 2008 Dodge Charger R/T vs. 2008 Pontiac G8 GT
48 messages, Last post on Sep 13, 2008 at 3:39 PM
You are in the Pontiac G8 Forum. Your Hosts are pat & karens
Comparison Test: 2008 Dodge Charger R/T vs. 2008 Pontiac G8 GT - You know, big, fast American cars. They're not hybrids, they don't run on biodiesel and they rumble and roar through dual exhausts. And they do the sort of epic burnouts that inspire Bruce Springsteen songs. (more)
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Why is the G8 GT posting ‘such good quarter mile times’? I believe that part of the answer here is the gearing. The Edmunds test refers to the 2.92:1 final drive ratio. Not considered very ‘aggressive’, normally. In this particular case, paired with the 6L80’s first gear ratio of 4.03:1, it actually is fairly aggressive. [[ For reference, the 2006 – 2008 Corvettes with versions of the motor and this automatic trans. have standard final drive ratios of 2.56:1. And now, for 2008, an optional ‘performance’ axle ratio – of 2.73:1. ]] The Charger R/T’s first gear ratio is 3.58:1 and the final drive ratio is 2.82:1. [[ This means the G8 GT ‘launches’ with around 10% greater mechanical advantage. Assuming that the tire diameters are approx. 7% different ( the Charger’s tires, in the Edmunds test are 225/60x18s vs 245/40x19s on the G8 GT w/Sport Pkg - means the Charger has roughly 7% higher RPM ) and assuming similar initial Torque Converter behavior in the 2 automatic transmissions. ]] AND ( I think particularly relevant here ) Pontiac chose a final drive ratio that allows the G8 GT to hit the Quarter Mile lights at the very top of Third Gear. Third gear  redline ( 6,000 RPM ) is 104 MPH. And the Quarter Mile Terminal Velocity in each test I have seen so far is between 102.8 and 104.1 MPH. So: The motor is at peak HP and no 3 – 4 shift is required before the end of the Quarter. The Charger ( non-SRT8 ) in tests I have see is geared for 118 MPG in Third gear – and clears the Quarter running at roughly 97 to 101. Just my 0.02 gallons worth . . . - Ray Pleased to see these acceleration times . . .
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http://www.motortrend.com/roadtests/sedans/112_0804_2008_pontiac_g8_vs_2008_dodg- e_charger
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Replying to: rayainsw (Feb 25, 2008 10:59 pm) |
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Replying to: rayainsw (Feb 25, 2008 11:26 am) By the way, I believe the G8 is a great vehicle and it should do well.
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Replying to: budoinst (Feb 29, 2008 12:31 pm) |
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what's the sales # per year under which the SRT8 or challenger or charger-RT would be considered a failure like you consider GTO, xtec & budo ? how is SRT8 doing for sales/inventory so far - maybe that will somewhat indicate how well challenger & charger-RT will do sales-wise? aren't G8 sales capped by the slow-boats from down under? in a sales-comparo, would we pick the same # for G8 & charger-RT as being an indication of sales success/failure?
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Replying to: elias (Mar 02, 2008 7:24 am)
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Replying to: xtec (Mar 02, 2008 10:02 am) There was this car parked out front, fugliest looking thing I have ever seen. Didn't know what it was until I saw that video of the Dud Chunder vs G8. Looks like one person designed the front and another did the back. They didn't quite meet up in the middle. Was it designed in India?
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Replying to: holdenguy (Mar 03, 2008 5:58 am)
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Replying to: xtec (Mar 03, 2008 9:52 am) 1) The reason we all know : Unappealing styling 2) The reason most of us know : The platform was due to be phased ,out irregardless of how many they sold. Remember , the 1994-96 Impala SS was a roaring success , but the General killed it because they made a poor decision to drop the rear -wheel drive architecture. 3) The reason few of us know : The UAW was annoyed with Bob Lutz for bringing a Holden product state side. In an effort to appease the union, a cap of 18,000 units was agreed upon for 2004-06. The only reason GM improved the car (appearance and performance ) in 2005 was because : a) Buyer backlash b) dealer's p.o. ed because Goats sat and nearly rusted away on their lots c)Lutz had egg on his face and his ego wouldn't allow him to admit that he underestimated American resolve to have a design worthy of the name, even though it performed quite well. Apparently , the UAW has made concessions because we all know that the G8 platform is here along with the soon to arrive Camaro derivative .And , the Opels are already here from Europe in Saturn ad Malibu trims.
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