Will the 300 Hemi (C, S, SRT) ever have the 8-speed Trans? - Chrysler 300C Forum: 300C & SRT8 Forums
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post #1 of 14 (permalink) Old 03-15-2013, 09:40 AM Thread Starter
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Will the 300 Hemi (C, S, SRT) ever have the 8-speed Trans?

I heard at first they would be in the '14 MY Hemi models and now I'm hearing it might not be until '15 or '16 MY models before seeing it. Within a year I'll be in the market but if I have to wait until '15 or '16 MY to get one, I might as well get a '13 when they get good deals on them.

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post #2 of 14 (permalink) Old 03-15-2013, 08:35 PM
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they are having issues tweaking it for the Hemi, you probably already know this. They are also going to start production on the ZF transmission at the kokomo transmission plant (previously the trans were made in Germany and imported in). Bringing it in house will allow this to fix some of the issue when married to the 3.6 & hemi. By now this production should have already start unless there have been delays. I would say 2015 but what do I know. :-)

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post #3 of 14 (permalink) Old 03-17-2013, 06:32 PM
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I drove a 300S with the 8 speed and too be honest I like the 5 speed better. The 8 speed was smooth but it shifted down often on the highway. The 5 speed just doesn't care what gear it is in. I know a lot has to do with the added torque of the Hemi but the V-6 isn't a wimp for torque also. The 8 speed just had to shift down to get up the slightest hill which we have a lot in Utah.
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post #4 of 14 (permalink) Old 03-17-2013, 09:39 PM
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Re: Will the 300 Hemi (C, S, SRT) ever have the 8-speed Trans?

The 8 spd is already behind the HEMI in the Ram and in the GCSRT. So the kinks/updates have worked out. The 8 spd should be available in the HEMI LXs early or late 14 would be my guess.

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post #5 of 14 (permalink) Old 03-18-2013, 08:03 AM Thread Starter
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Thanks for the replies.

Reason being is the wife thinks the 8-speed will get much better gas mileage, but I told her you'll probably only see a +/-3 mpg difference between the 5-speed and the 8-speed (considering the JGC 3.6L and 5.7L got +2 mpg between the 6-speed and 8-speed) and that only equates to about a 55 mile difference between fill ups. I'd like to get a '13 SRT by the latter part of '13 when the '14 MY SRTs are out.

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post #6 of 14 (permalink) Old 03-18-2013, 10:41 AM
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Quote:
Originally Posted by Cajun300C View Post
Thanks for the replies.

Reason being is the wife thinks the 8-speed will get much better gas mileage, but I told her you'll probably only see a +/-3 mpg difference between the 5-speed and the 8-speed (considering the JGC 3.6L and 5.7L got +2 mpg between the 6-speed and 8-speed) and that only equates to about a 55 mile difference between fill ups. I'd like to get a '13 SRT by the latter part of '13 when the '14 MY SRTs are out.
If i were you I would wait for the 8 speed. I have owned several Mercedes and Chrysler products with the 5 speed and yes it is a solid transmission but lets face it... its old as dirt and greatly outdated!! 8 Speed is the way to go.. not only do you save gas but the performance aspect of it will put a smile on your face. Just recently I went to test drive new jeep gc overland HEMI with 8 speed and all I could say was wow!!
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post #7 of 14 (permalink) Old 03-19-2013, 08:00 AM
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My 2 cents here - Nothing wrong with a 5-speed. The perception of it being outdated is just that - a perception. Since the 8-speed currently does not exist in the 300 Hemis, the expected gas mileage claims are just a myth. My guess is that when the 8 speeds do go into the 300's with the Hemi people will drive the $hit out of them and actually get less mpg than the 5 speed. Then again , I could be wrong. Buy the car you want when you want. Life is short.

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post #8 of 14 (permalink) Old 03-19-2013, 11:00 AM
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I was reading an article about 2014 Jeep SRT - stating it would be 8 speed, so I guess it will come around the same time Jeep's 2014 Grand Cherokee SRT Gains Refreshed Styling | Autohotest.com

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post #9 of 14 (permalink) Old 04-18-2013, 07:05 PM
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With the torque these cars make the 8 speed is not needed. As far as the car being faster, more than one car has been made slower by extra changes in gears especially before 60mph. If the 8 speed is a double overdrive then fuel savings will be seen but these things aren't bought for the green leaf effect.
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post #10 of 14 (permalink) Old 04-18-2013, 09:17 PM
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Quote:
Originally Posted by Nemesis RR View Post
With the torque these cars make the 8 speed is not needed. As far as the car being faster, more than one car has been made slower by extra changes in gears especially before 60mph. If the 8 speed is a double overdrive then fuel savings will be seen but these things aren't bought for the green leaf effect.
The eight speed doesn't necessarily make sequential gear changes. It can shift directly from wherever it's at to wherever it needs to be. If I remember those shifts are in the 200 millisecond range, Ronnie Sox would be envious.

If the 5.7 is released with the eight speed next year and there's a significant fuel economy / acceleration increase I'll be looking to trade.

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