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Why is MN6 40 lbs heavier than automatic ?

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Old Feb 17, 2003 | 02:05 PM
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Default Why is MN6 40 lbs heavier than automatic ?

I just looked at spec for new vette. The MN6 weighs 40 lbs more than the automatic ! I thought automatics were always heavier than manual transmissions, what's with this ?

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Old Feb 17, 2003 | 02:56 PM
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Default Re: Why is MN6 40 lbs heavier than automatic ? (Oldvetter)

Not sure myself, but I think the following contribute:

1. Flywheel. A4s use the torque converter as the flywheel, with a flex plate for the starter gear. Also, I've heard (not personally verified) that the flywheel in the C5s is a dual mass system, done mainly to smooth out the LS-1's idle.

2. The MN6 has six forward gears as opposed to four in the auto.

3. Then you've got the clutch, pressure plate, slave cylinder, throwout bearing.

So, seems like it could be more. Of course, the auto's weight probably doesn't take into account the weight of the cooling lines going to the radiator and that associated weight.

Hopefully someone will straighten me out where I'm wrong (I know my kids do! :D)

Have a good one,
Mike
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Old Feb 17, 2003 | 03:57 PM
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Default Re: Why is MN6 40 lbs heavier than automatic ? (VetteDrmr)

It’s just Gods (GM) way of making things even.
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Old Feb 17, 2003 | 04:00 PM
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Default Re: Why is MN6 40 lbs heavier than automatic ? (VetteDrmr)

I have to agree its the drivetrain differences. :yesnod:
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Old Feb 17, 2003 | 08:48 PM
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Default Re: Why is MN6 40 lbs heavier than automatic ? (Dave00C5)

Another C5 reality-the 'vert's are lighter than the coupes (no hatch glass). So the lightest 'vette out there is an automatic 'vert!!

Don't know if you could get a FRC in auto prior to Z06 (which you can't get an auto).
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Old Feb 17, 2003 | 09:14 PM
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Default Re: Why is MN6 40 lbs heavier than automatic ? (MiamiDave)

:auto: Interesting..........Very Interesting :auto:
:flag :steering: :flag
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