What is a clutch?!
- Thread starter WhackAzn
- 90 comments
- 3,801 views
=V8 Power=
(Banned)
- 368
In real life you want the clutch to slip as little as possible. You should engange the clutch rather quickly so that you don't burn it up. It is much better to spin the tires a little bit on a hard takeoff, than to let the clutch slip as clutches are much more expensive (especially in FF cars) to replace than tires are.
- 1,795
I have a tuning question I've always been wondering about since GT1. Do some cars work better if you give them a double-plated clutch, or is triple-plate the best you can do for any car in Gran Turismo?
=V8 Power=
(Banned)
- 368
I'm not sure either but your probably right about it being firmer. A double/triple clutch would be overkill for cars with little power. Double/triple clutches are used in applications where the engine makes massive power or torque. An example would be in semi trucks.
- 24,344
- Midlantic Area
- GTP_Duke
For the record, nobody cares if he isn't fluent in English. We care about people deliberately posting in incorrect txtmsg crap language. And the reason we do care is to help out the users who are not fluent in English. Duh.XLR8er34
Good night, sweet prince. We won't miss you.XLR8er34
WhackAznIm makin new thread....
Well WhackAzn, I do understand you have just turned 13. I wish I was your age and I would agree on a 13 million debt to be 13...
However please act your age. If you are 13 you should not use that foul language which you probably have not learnt the exact meaning of yet. It is not only foul but also filthy and a very bad example for your future life. Please give up on that kind of attitude and language. Being rude an dirty mouthed may seem "cool" (or "kewl" as you youngsters prefer) but it is disgraceful, ugly and disgusting.
Please also remember you are not the only young fellow writing around in this forum.
Also please convey my best regards to your 3rd grade teacher: he / she should repeat your spelling and wiriting classes...
So enough said; I withdraw my words to the mod and appologise from him for saying we were not moms and dads... We DEFINITELY HAVE to be moms and dads...
Best regards
- 355
- Netherlands
- Puppy71
modik
I disagree with you on that, we don't have to be moms and dads to everyone (man at this moment my son is enough for me, and he's only 21 months of age).
It's not about being moms and dads to youngsters like that, it's about normal human behaviour amongst friends. Man if one of my friends/relatives would act like that I'd slap him (verbaly that is) untill he/she acts normaly!
- 29
Since you guys are talking about clutch. I want to know why manual transmission cars accelerate faster than autos?
kusanagiblade
Two reasons:
1. Typical automatic transmissions lose more power through the drivetrain than typical manual transmissions. That is, the manual transmisssion's relative simplicity allows it to transmit power a little bit more efficiently. However, the automatic transmissions that are being produced these days are much better than the ones of years past.
2. Typical automatic transmissions have fewer gears than typical manual transmissions. Whereas most manual-transmission cars have had 5 speeds for years and years, automatics have only begun to match that number within the last 5-10 years. Most auto transmissions of the 90's and 80's had 4 or even 3 gears. As a result, those 3 or 4 gears had to be stretched longer (otherwise a car could be at a noisy 5000rpm on the highway), inhibiting acceleration by a bit.
Really, acceleration differences between automatic and manual are not nearly as drastic as laptime differences. Automatics are usually very sluggish when it comes to deciding to shift (although when they do shift, it's an instantaneous process), and because they aren't controlled by the driver, they often shift where they shouldn't, or hold a gear when they should shift -- finding yourself in 4th or 5th gear at the exit of a sharp hairpin corner is one example. The "manumatic" transmissions you can find with most manufacturers aren't much better, either. You can choose when you want to shift, but the transmission will still take its sweet time in actually making the shift.
"Manumatics" are not to be confused with sequential manual gearboxes, though. SMGs are very similar to true manual transmissions, but with an automated clutch and an up-down gear selection lever (like on the Driving Force Pro).
=V8 Power=
(Banned)
- 368
Another reason is the lag autos have. When you floor a car with an auto transmission, there is a noticable lag between the time you hit the pedal and the time the car moves. This lag is much less with a manual tranny.
On a side note, I think someday autos are going to surpass manuals. The F1 style gearbox in the Ferrari F430 is very nice, and Jaguar recently came out with a transmission that shifts almost twice as fast as most autos.
=V8 Power=
Ah, yes. I forgot about that part. đź‘Ť I believe that lag is caused by the transmission needing to load the torque converter before sending the power to the wheels. I may be mistaken, though. I don't know all that much about automatic transmissions, because I think they're garbage.
=V8 Power=
Ferrari F1-style gearbox != auto
Ferrari F1-style gearbox = sequential manual gearbox
Sakiale
Eh we are men at various ages and many of us except those who prefer to be a bit... ummm... uhhh... ~what's the exact polite word for it ?~ "feminine" and "overly polite" , know how to curse and cuss like a stagecoach driver right ?
Noone can call me "sissy" but noone can call me "filthy mouth" either. You have to watch your manners and language when in community.
This is no "mom and dad's away" illegal beer call
where we test our ability and range of imagination to create brand new bad mouth words.It could be your daughter or sister who is reading this forum and noone can talk to my daughter or sister that way.
A man-enough-man to use those words is man enough to stand up against the improper use of them!
But what the heck ? We are ranting and raving about a 13 year old who doesn't even know what the words he used mean... So we had better help him learn some proper manners...
Hehhehe A Canadian who talks Brooklyn slang ? "Yo dawg" huh ?
- 4,822
- Concord, CA
- kylehnat
In addition to the reasons already listed, a major factor is the shift time. Most drivers who know what they're doing can shift faster than an automatic transmission would. Next time you're in an automatic, listen to how slow the upshifts are. A skilled driver with a manual (read: anyone who does acceleration tests for magazines or manufacturers) can make a gear change in a couple tenths of a second. Automatic transmissions also tend to upshift too early, even if you push them hard. With a manual, it's easier to keep the car in the right part of the powerband.kusanagiblade
=V8 Power=
(Banned)
- 368
Yes the F430 has two modes. There is a full auto mode where the computer shifts. Then there is the "manumatic" mode where you press a button when you wish to shift. The F430 has no clutch. The manumatic mode is still operating through the automatic transmission so I considered that part of automatic transmission technology.
Yes, the lag is caused by the fluid moving to the outside walls of the torque converter
- 355
- Netherlands
- Puppy71
kylehnat
To me the most important reason I prefer manual over auto is because I think ahead, which a computer obviously doesn't, so I can deside not to shift because I would have to shift back almost immediately. I think in racing this is the most important reason not to use auto. It will be like this untill the day they develop a boardcomputer that knows your position on the track!
=V8 Power=
(Banned)
- 368
Well aww be. I didn't know that and when I looked it up online, it said it uses clutches in the F1 style gearbox. I assumed because there is not a clutch pedal on the floor, it must have used torque converters. I learn something new every day.
- 5,081
- Panama City, FL
Mouser1286
Nope. Generally you add plates to the clutch in order to reduce the diameter of the clutch system. A race car with a high-RPM engine needs a small-diameter clutch to keep from slinging the edges of the disc out by centrifugal force. Smaller diameter also reduces the flywheel effect of the clutch disc(s). A single smaller plate would be eaten up by the torque in just a few engagements, though. Solution: add plates (more properly, discs) to get needed friction surface. I saw a Ferrari 333 being serviced at the Dayton 24-hour race some years ago, and the clutch assembly was only 4 or 5 inches in diameter!
There's nothing in the clutch that even remotely has anything to do with actually engaging a gear. All the clutch does is unload the input shaft of the the tranny so that selection can take place. The only "force" adjusting the gears is the shift forks, operated by the lever in the driver's hand.
As to the original question, a clutch is any device that allows a rotating shaft which is transmitting power to be disengaged from its load. Your automotive A/C compressor has a clutch, electro-magnetically engaged. Your Briggs and Stratton-powered yard go-kart has a clutch, or it wouldn't idle when stopped. (It's operated by weights engaging a drum as the revs go up.)
=V8 Power=
Yup. There are other similar systems, including VAG's DSG and BMW's SMG, that work the same way, with automatically-controlled clutches.
Manumatic transmissions (ones with torque converters) can usually be spotted pretty easily -- they either have "matic" or "tronic" somewhere in their name. Porsche's "Tiptronic" is one example, and I think a handful of manufacturers call theirs "Sportronic."
- 29
Wow, you guys really know many things about the clutch. Last question, why does the car (manual transmission) stall, if you release the clutch to quickly. Is there some other way to release the clutch quicker, and yet it won't stall the car?
If you're learning to drive a manual-transmission car, kusanagiblade, then I'm guessing you're asking how you can start from a stop relatively quickly, without sitting there, slowly slipping the clutch and holding up traffic?
As Duke said, you can try adding more throttle, but the main thing to do is just practice. Eventually, you'll be able to launch smoothly and quickly, without taking off too quickly.
As Duke said, you can try adding more throttle, but the main thing to do is just practice. Eventually, you'll be able to launch smoothly and quickly, without taking off too quickly.
=V8 Power=
(Banned)
- 368
Unless you want to do a burnout. Rev it up to about 4000 rpm and then drop the clutch. If it is a high horsepower vehicle, the tires will go up in smoke. (Don't recommend this unless you want to destroy the clutch though)
- 10,116
- Maryland, USA
- swift-bass
Duke
Yep, you've got to be smooth with the clutch AND throttle. Many people just think it's clutch. In some vehicles it is just because the engine has very good low end torque, like mine
But in most passenger cars you have to apply the throttle to keep the car from stalling- 29
Yeah, I do put throttle when I am releasing the clutchs, sometimes the car still get stalled, maybe the RPM wasn't high enough.
