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Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 04-17-2004, 01:54 AM   #1
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Hey everyone, I just discovered an interesting fact about Chrysler'* 300C Hemi monster. The gas mileage is 17/25 compared to the GXP'* 17/24. Something is not right here when you compare the performance/power output along with the overall package and price. The bonneville is definitely better looking, but the technology is falling behind with the other big boys. The 300C'* numbers are almost big V6 gas figures. It also has a five speed automatic which is becoming the norm for current auto technology for the real challengers out there.
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Old 04-17-2004, 04:36 AM   #2
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Technology? No, the Hemi has pushrods. I think gearing is to blame here.
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Old 04-17-2004, 11:52 PM   #3
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it gets 1 more mpg on the highway due to 2 overdrive gears (5 speed auto)
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Old 04-18-2004, 01:20 AM   #4
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Hemi will require less rpms due to more cylindars in the cycle,
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Old 04-18-2004, 01:23 AM   #5
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Even besides the gearing, you'd think the 5.7 would be more of a gas guzzler than the N* 4.6. Kinda strange.
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Old 04-18-2004, 02:02 AM   #6
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Quote:
Originally Posted by Sol
Even besides the gearing, you'd think the 5.7 would be more of a gas guzzler than the N* 4.6. Kinda strange.
really strange
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Old 04-18-2004, 03:54 AM   #7
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Quote:
Originally Posted by BonneMeMN
Hemi will require less rpms due to more cylindars in the cycle,
Um, the GXP and the 300C have the same number of cylinders.

I forgot this little detail. This version of the Hemi had MDS (multiple displacement system). It'* cam followers are hydraulic cylinders. The engine can open valves on individual followers and therby disabling the valve associated with it during low load conditions. That saves fuel.

So, yeah, it has some more technology in that department.
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