When will we see a 7-Speed?
02-01-2002, 11:51 AM
#1
Senior Member
Thread Starter
Join Date: Nov 2000
Posts: 308
When will we see a 7-Speed?
Any ideas on when and from whom we will see a 7-speed manual transmission? It would kind of make sense. 6 close gears for accelerating and then a 7th for cruising. It started at 3 gears and now we are to 6 so when 7?
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
02-01-2002, 12:00 PM
#2
Senior Member
Join Date: Jul 2001
Posts: 7,530
Re: When will we see a 7-Speed?
Originally posted by tomj
Any ideas on when and from whom we will see a 7-speed manual transmission? It would kind of make sense. 6 close gears for accelerating and then a 7th for cruising. It started at 3 gears and now we are to 6 so when 7?
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
Any ideas on when and from whom we will see a 7-speed manual transmission? It would kind of make sense. 6 close gears for accelerating and then a 7th for cruising. It started at 3 gears and now we are to 6 so when 7?
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
SuDZ
02-01-2002, 12:12 PM
#10
Some F1 cars have 7 gears.
You gotta weigh the benefits of more and more gears for a street car. The more time you spend shifting, the less time you spend with your foot on the floor accelerating. The broader the powerband of a car, the less it will benefit from lots of gears.
You gotta weigh the benefits of more and more gears for a street car. The more time you spend shifting, the less time you spend with your foot on the floor accelerating. The broader the powerband of a car, the less it will benefit from lots of gears.
02-01-2002, 01:01 PM
#12
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Join Date: Oct 2000
Posts: 773
Originally posted by soundmike
I think the new BMW 7 series are coming out with a 7-speed gearbox. Read it in one of their press releases.
I think the new BMW 7 series are coming out with a 7-speed gearbox. Read it in one of their press releases.
02-01-2002, 01:11 PM
#16
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Join Date: Oct 2000
Location: Rochester, NY
Posts: 3,150
Originally posted by hlh0501
random knowledge: at one point on the new R35 they said possible 8speed automatic, and some semi's have 12speeds.
random knowledge: at one point on the new R35 they said possible 8speed automatic, and some semi's have 12speeds.
02-01-2002, 01:30 PM
#18
Apparently the Honda City had a 7 speed gearbox in the mid-80's. To those who don't know it, the Honda City is a step lower than the Civic. This is how the City looks like now except it comes with a conventional trannies
The super diablo supposedly has a 7-speed gearbox too.
And so does the Bugatti - This paragraph is also amazing to note:
The super diablo supposedly has a 7-speed gearbox too.
And so does the Bugatti - This paragraph is also amazing to note:
The gearbox has "something" to say as well: It's a 7-speed sequential with… two clutches (haven't heard of this before…). One clutch is used for 1st, 3rd, 5th and 7th gear while the other one is used for 2nd, 4th and 6th. As one clutch is always engaged and the other is always open, the system opens the driving clutch as it closes the "new" one that will engage the next gear. The result? You don't feel a loss of power at all despite the gearchange taking 0.2 seconds to complete!
02-01-2002, 01:38 PM
#20
THAT was one of the stupidest trannies around. Almost ever gear had a slight overdrive gear. Ridiculous. Ever wonder why Corvettes don't have it now?
Originally posted by Romeo
well, some '80s Vette's have a 3+4 tranny, so i guess that is a 7 speed...
well, some '80s Vette's have a 3+4 tranny, so i guess that is a 7 speed...
02-01-2002, 02:38 PM
#21
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Join Date: Jun 2001
Posts: 3,445
There are cars that have 7 speeds out right now. Big rigs have 6 speeds with split gearing meaning they hit a switch and go to 12. Really just half gears though. Bottom line 5, 6 , 7 etc don't really matter how many gears you have. What matters more is the effeceicny of the tranny per application, and how you drive.
02-01-2002, 03:02 PM
#23
Senior Member
Join Date: Sep 2001
Posts: 258
Re: When will we see a 7-Speed?
Originally posted by tomj
Any ideas on when and from whom we will see a 7-speed manual transmission? It would kind of make sense. 6 close gears for accelerating and then a 7th for cruising. It started at 3 gears and now we are to 6 so when 7?
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
Any ideas on when and from whom we will see a 7-speed manual transmission? It would kind of make sense. 6 close gears for accelerating and then a 7th for cruising. It started at 3 gears and now we are to 6 so when 7?
Oh, and before anyone says OT, the Max is related because it is possible to continue the evolution.
Thank you.
Acura has had a rush of repair jobs for people over-reving their trannies and grinding everything.
02-01-2002, 03:30 PM
#24
Originally posted by 98BlaximaSE
Trucks have 10 speed, but they use a spliter or something there for making it much like a 5 speed.
Trucks have 10 speed, but they use a spliter or something there for making it much like a 5 speed.
They have a switch that goes from 1-2-3-4-5-6 switch 7-8-9-10-11-12....
kinda boring for a truck driver eh?
02-01-2002, 03:40 PM
#25
Originally posted by emax95
I thought I read the new Skyline GT-R will have a 7spd?
IMO 6spd is the perfect amount, 7 gears would get annoying to row through.
I thought I read the new Skyline GT-R will have a 7spd?
IMO 6spd is the perfect amount, 7 gears would get annoying to row through.
02-01-2002, 04:25 PM
#26
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Join Date: Oct 2000
Posts: 773
Originally posted by Jeff92se
No becuase CVTs are going to be the next big thing
No becuase CVTs are going to be the next big thing
02-01-2002, 06:14 PM
#27
Originally posted by kingston
Become a trucker. They got 8 or 9 gears I think
Become a trucker. They got 8 or 9 gears I think
02-01-2002, 07:24 PM
#29
Originally posted by emax95
I thought I read the new Skyline GT-R will have a 7spd?
IMO 6spd is the perfect amount, 7 gears would get annoying to row through.
I thought I read the new Skyline GT-R will have a 7spd?
IMO 6spd is the perfect amount, 7 gears would get annoying to row through.
02-01-2002, 08:03 PM
#30
Dyno plot says I have the most area under the Administrator curve
Join Date: Jul 2001
Posts: 7,060
If an engine seriously has such a narrow powerband that you need 7 gears then that's just crazy. 4 gears were more than plenty in the muscle car era. Now with our small-medium displacement higher revving import engines, 5 or 6 are just fine. But what would you need 7 gears for, besides in a super exotic?
As for massive 18-wheeler and other truck transmissions, they don't actually have 22-24+ "cut" gears. I think they have around 7 or so and then different gear ranges, just like on a mountain bike. Your "21-spd" mountain bike only has 7 cut gears, but 3 different gear ranges to give you 21 total effective ratios.
A few examples...
When I was in high school I worked at a garden nursery for awhile and went along on deliveries in a fairly heavy-duty box truck. It went...
1-low
1-high
2-low
2-high
3-low
3-high
4-low
5-low
4-high
5-high
The reason it went 4-low to 5-low instead of 4-low 4-high is because it was supposedly easier to get stuck between switching between gear ranges than it was to get stuck between an actual gear. Being stuck out of gear can be a very very dangerous thing in a truck, BTW.
Another example is my old high school friend's '72 British Triumph TR-6 which he rebuilt. It had a 4-spd manual transmission, but had a variable rear diff or something like that which could be used on 2nd through 4th gears for a total of 7 possible ratios.
1st
2nd-low
2nd-high
3rd-low
3rd-high
4th-low
4th-high
This was an awesome car - fully restored it seriously looked like something out of a James Bond movie. It was horrible unreliable though, and the tranny blew up a few times on him.
But anyways, for passenger cars 5 gears is plenty if they're spaced well. If the engine has a narrower powerband (S2000) or you just want some extra performance then 6 is more than enough, but I think 7 is excessive.
As for massive 18-wheeler and other truck transmissions, they don't actually have 22-24+ "cut" gears. I think they have around 7 or so and then different gear ranges, just like on a mountain bike. Your "21-spd" mountain bike only has 7 cut gears, but 3 different gear ranges to give you 21 total effective ratios.
A few examples...
When I was in high school I worked at a garden nursery for awhile and went along on deliveries in a fairly heavy-duty box truck. It went...
1-low
1-high
2-low
2-high
3-low
3-high
4-low
5-low
4-high
5-high
The reason it went 4-low to 5-low instead of 4-low 4-high is because it was supposedly easier to get stuck between switching between gear ranges than it was to get stuck between an actual gear. Being stuck out of gear can be a very very dangerous thing in a truck, BTW.
Another example is my old high school friend's '72 British Triumph TR-6 which he rebuilt. It had a 4-spd manual transmission, but had a variable rear diff or something like that which could be used on 2nd through 4th gears for a total of 7 possible ratios.
1st
2nd-low
2nd-high
3rd-low
3rd-high
4th-low
4th-high
This was an awesome car - fully restored it seriously looked like something out of a James Bond movie. It was horrible unreliable though, and the tranny blew up a few times on him.
But anyways, for passenger cars 5 gears is plenty if they're spaced well. If the engine has a narrower powerband (S2000) or you just want some extra performance then 6 is more than enough, but I think 7 is excessive.
02-02-2002, 07:25 AM
#34
Originally posted by slick
what the heck is CVT? what does it do, i heard some civics have it(HX model?), so i thought of CVT as something cheesy and made for fuel economy, is it actually performance oriented?
what the heck is CVT? what does it do, i heard some civics have it(HX model?), so i thought of CVT as something cheesy and made for fuel economy, is it actually performance oriented?
http://autobuy.about.com/cs/trends/a/nogears16.htm