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Old 01-18-2007, 12:59 PM   #1 (permalink)
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WELL!!!! IS IT??????

They are already creating 8 gear Automatics, and Manumatics
I say this because, what could you do with 2 extra gears...don't you think 6 is enough?

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Old 01-18-2007, 01:11 PM   #2 (permalink)
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Quote:
WELL!!!! IS IT??????

They are already creating 8 gear Automatics, and Manumatics
I say this because, what could you do with 2 extra gears...don't you think 6 is enough?[/b]
Arent some trucks already well past 8 gears?
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Old 01-18-2007, 01:19 PM   #3 (permalink)
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Yes most trucks are far past 8 gears; I've seen some that have 12. The only problem is the transmission is pretty big and won't fit in any modern car.

The best transmission that I can think of is the CVT since it can be designed to always be at the best gear ratio, for the engines power band and fuel economy.

I think people will always have a thing for the manual transmission but I think they will have sequential transmissions in 6+ gears and do away with the standard H pattern gearboxes.
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Old 01-18-2007, 01:23 PM   #4 (permalink)
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ive been searching for a sequential tranny for my project car. it wasnt hard to find for my 240 but the t56 i havnt found a setup for yet
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Old 01-18-2007, 01:47 PM   #5 (permalink)
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I think on an episode of Trucks they showed a 15sp gearbox. The thing was like the size of welll you get the idea. But they need those gears since they need to stay at peak tq when pulling a couple of tons and you get peak at 1000rpms. I doubt they'll ever go more then 6gears in a car MT since ppl would't drive it due to insane amounts of shifting.
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Old 01-18-2007, 01:54 PM   #6 (permalink)
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i suppose if your cruising at 115 mpg you could still be under 2k rpm's =)
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Old 01-18-2007, 02:31 PM   #7 (permalink)
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I don't think our cars will need 8 speed manual transmissions. A 6 speed manual transmission is good enough, we don't have very powerful engines, so eight speed will be a waste. CVTs are nice and smooth but they tend to let the engine run at high RPM and it can only handle V6 and four cylinder engines for now.
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Old 01-18-2007, 02:50 PM   #8 (permalink)
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I think the 6-speed will be about the limit, since any more may help in fuel economy, but shifting 6 times (or more) just to get to highway speeds won't appeal to most MTX drivers.

The 7- or 8-speed ATX may become more commonplace. It'll help to better acceleration and fuel economy for ATX models, since, in general, they suffer from more drivetrain loss than MTX.

The sequential-manuals and all the new clutch-less gearboxes are slowly catching on, and I bet they are a blast to drive with, but (IMO) they'll never replace a proper 3-pedal manual. I'm sure I'm not the only one that feels this way.

As for CVT? The verdict's still out on it. Newer Nissans are using more CVTs, and (I think) Ford was to also, but has since scaled back (I know the Fusion was supposed to have a CVT, but was dropped at the last minute). I'm still leary about their long-term durability/longevity, but we'll see...
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Old 01-18-2007, 03:20 PM   #9 (permalink)
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bmw invented the cvt and uses it on their trucks, so they are pretty strong
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Old 01-18-2007, 03:26 PM   #10 (permalink)
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That'd be crazy if there was more than 6 gears in a manual. Heavier car, more shifting, so more clutch use which could mean clutch life is less. But you would have more flexibility such as shifting from 5th to 8th if fast enough.
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