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> How Do I Dash with a shiftronic car??, Sry for noob question.
Mr.Emperor
  Posted: Jun 8 2009, 09:19 PM


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Hi ladies and gentlemans,I had got some questions in my mind and hope you guys could help me out.There's half a year before my license into my hand but I am truly curious on this.Thx for any replies!

1)Is there any way to dash an auto car with shiftronic??I mean manual could have release the clutch when pressing the gas to make it dash once the traffic light turns green.

2)How do I use the shiftronic??Release the gas pedal when pressing + or -??

3)Is da shifttronic good for revving??Or merely comfortable driving??

4)If it is a sport car,is there much difference in performance between shiftronic and manual???Which would you choose & why??

Replies are truly appreciated!Thx again w00t2.gif
sideways
Posted: Jun 8 2009, 10:27 PM


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Whats a dash? Are you talking about just taking off from a stop?

1 as for the topic, just like any other transmission. Leave it in 1st, press the brake down with your left foot, raise the rpms with your right, and let off the brakes.

2, like an automatic transmission that you tell when to shift, IF you have it in the manual-shift mode. Want to upshift? then hit up.

3 Sorry, i dont understand this question- good for revving how?

4 Theres a lot of difference. And depends a lot on what you want to do. Typicaly speaking, stock for stock, manual will be faster in all respects. Id choose a manual, why? I like it. I like the clutch i like the shifter, i like being in control. Just a "me" thing.

Welcome to the auto section.
JaeMok
Posted: Jun 8 2009, 10:32 PM


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1) I don't completely understand the question, but if your referring to manually depressing the clutch in an AT car than I pretty sure the answer is no.

2) You dont have to release the gas.

3) Shifttronic is good for 2 things: manual gear selection, and wasting gas. Back then, you could only select specific gears such as in Hondas, even today, you can select specific gears instead of shifting sequentially. You would mainly use these to limit your top speed.

4) Now a days, twinclutch trannies are starting to produce faster times in almost all categories of automotive sports. Excluding 0-60 times. But twinclutch is only available in higher end cars starting from the EVO X MR(is it?).

Any other auto sports car under the EVO do not have twinclutch. A stick shift car currently will perform better, but only if you know what your doing.

If you ever drive one, you'll know what I mean.

This post has been edited by JaeMok on Jun 8 2009, 10:41 PM
sideways
Posted: Jun 9 2009, 12:42 AM


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Shift tronic is just a regular automatic transmission thats computer controlled, no clutches of any sorts, no gear drive like a manual transmission- They, to my knowledge, still use the indivudualy packed automatic gears (Planetary). While automatics can be the fastest, being a stock "dd" transmission, it shifts as slow as any other dd automatic will.

They are a bridge between auto and manual transmissions. They let you control when to shift, not the car. So the benefits come from anything you can infer from that (and are only over an automatic). You can make it stay in gear for engine braking, or make it stay in gear mid-corner to maintain traction. But theyre still heavier, show more drivetrainloss (mildly now with good transmissions mind you), and MUCH less responsive to actual input. Click... wait... shift.
DigiBunny
Posted: Jun 10 2009, 12:45 AM


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Launching an automatic. Rev it up with your foot on the brakes. This is the technique I was shown with both Rear and front wheel drives. Shift as needed.

Im sure it shifts just like an automatic. You dont have to take your foot off the gas...at least I think so. I've used someone's AT RX8 and I could just nudge the shifter up and down without getting off the pedal. Something about a torque converter.

Comfortable driving would be an automatic...If it comes with that then just leave it on if you're looking for comfort. If you're looking for revs then just go manual =/ Im going to assume what you're driving is NOT the new GTR, so manual trumps automatic in the control department.

Sports car or not, there is going to be a difference. As sideways said, there's a delay between shifts, whereas on a manual you are mechanically selecting the desired gear. Shifttronic is neato if you're lazy to clutch in every time you want to change gears, but it's delays make it less desirable.

Hope that helps.
AzNMaVbOi
Posted: Jun 10 2009, 10:05 AM


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1) If by "dash" you mean "launch," then yes, there is a way. "Brake Torquing," which is what everyone else has mentioned thus far (leave car in first, hold brake, step on gas), is the most widely used technique as far as I know, though it doesn't seem to work too well with the new 4th generation Acura TL SH-AWD (the car will shift into 2nd, then drop back into 1st when you let off the brake which pretty much kills the launch).
2) No, you don't need to lift off the gas. Just push the lever or paddles, which ever one your car comes equipped with.
3) If you mean revving as in taking the car to redline, it depends on the transmission. Many car manufacturers keep the driver from running the car into redline in manual mode to preserve the engine and the warranty. The Acura TL Type-S, which I am currently driving, lets you rev the crap out of the engine and bounce off the redline all day long in manual mode so long as you don't care about your warranty. The new Acura TSX V6, which makes it debut next month, will let you do the same as long as the shift lever is left in "S" mode. If I remember, most comfort oriented vehicles will simply shift into the next gear if you are about to approach redline. But if you're talking about rev matching during a down shift, that yet against depends on the manufacturer. Once again, using the 3rd generation TL Type-S and 2nd generation TSX V6 as examples, the car is programmed to blip the throttle during downshifts. On more comfort oriented vehicles, this will not happen.
4) Of course there's going to be a difference. For one, a real manual gives you more control, such as being able to skip gears, for example. However, that line is starting to become more and more blurred. Using the 3rd generation Acura TL Type-S as an example again, this car comes both in 5AT and 6MT flavors. Obviously, the 6MT comes with a six-speed manual, but also comes equipped with a limited slip differential. However, as I mentioned before, the 5 speed automatic in the 5AT version is programmed to function as much as a manual as possible, allowing you to leave the car in gear without having to worry about the car suddenly shifting on its own. Shift speed is also surprisingly quick, though it still won't shift as fast as a person who is extremely proficient with a manual. However, the 5AT does come with some safety features obviously not available in 6MT such as the ability to prevent you from down shifting into a lower gear if the car calculates falling into redline in a lower gear. The car will also prevent you from shifting into a higher gear if the engine is not making enough power. Of course, any manual driver worth his or her salt will know these things anyway.

The main advantages of having a "manumatic" or "sportshift," as Acura calls it, is the ability to hold a gear while cornering or to use engine braking, as sideways mentioned. To be honest, I never use it unless I'm canyon carving (which I've only done once so far with the TL-S), driving down a hill, or passing a vehicle on the freeway. You actually end up wasting more gas trying to use it when driving daily than just letting the car shift on its own.

On a final note, a lot of the newer automatics with more than 6 gears tend to have trouble selecting the right gear for normal, day to day driving when left in automatic mode. The Lexus IS-F with it's 8 speed automatic for example, if I remember correctly, has been criticized by a few automotive magazines with having this fault. I think Mercedes' 7 speeds have this problem too.

@JaeMok: Twin clutch transmissions are available for lower end vehicles. The VW GTI is available with Volkswagen's DSG transmission and is in the same price range as a Civic Si.
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Tessou
Posted: Jun 11 2009, 03:51 AM


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QUOTE (Mr.Emperor @ Jun 9 2009, 01:19 AM)
1)Is there any way to dash an auto car with shiftronic??I mean manual could have release the clutch when pressing the gas to make it dash once the traffic light turns green.

2)How do I use the shiftronic??Release the gas pedal when pressing + or -??

3)Is da shifttronic good for revving??Or merely comfortable driving??

4)If it is a sport car,is there much difference in performance between shiftronic and manual???Which would you choose & why??

Replies are truly appreciated!Thx again w00t2.gif

1) this has been answered well by the post above mine.

2) you can click the shifter into + or - at any time. You don't have to be off the gas. You can be flooring it and click the shifter and it will still work just as well as it would be if you let your foot off before clicking.

3) as with any automatic car, revving is only possible by either putting it in neutral or holding the brake while hitting the accelerator. This does not change whether or not you have the shifter in the "D" or over in the manual shift gate (for cars that have those). However, your wording for this question is odd. If you're asking if shiftronic/tiptronic/sportshift transmissions are good for driving fast, then there's no problems there. You can still get a good deal of performance out of it but the weight of the automatic transmission, thanks to the planetary gears, will bog you down in comparison to a manual.

4) Performance is always best with a manual since the driver has the most control over the car. Shiftronic is still automatic and thus still weighs more, but the driver has a better amount of control over an automatic. Straight automatic is generally the worst because the shifting is controlled by the engine computer, which almost never realizes when you want the car to shift. You have to trick the car at times to get it to shift.
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Mr.Emperor
  Posted: Jun 16 2009, 01:21 AM


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Thx for all the replies gentlemans and sorry if the questions sounds a lil bit odd because I ma not really that good with what I want to ask.BUT!!!I think I had the answers already from all of you.Currently I ma looking at 2 cars which is Toyota Altezza & Toyota Celica both around 2000 year made for daily usage.For the market of used cars in my country,there's way much selection for auto rather than manual transmission for these cars and I dont understand how the tiptronic/shiftronic is working at the beginning.Is both of these a nice choice for the beginner like me??Oh ya,so will manual transmission cost less gas compared to auto transmission on daily usage?? w00t2.gif
HALO
Posted: Jul 17 2009, 09:52 AM


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as an above poster noted, some tiptronic cars do have a delay once you shift (mazda rx8, mitsubishi eclipse) but ALL tiptronic cars do not.

last week i went out shopping for new cars and wanted to get something automatic rather than manual (bad back/left leg pain). i eventually went for a test drive in a subaru impreza and tried out the tiptronic, there was ZERO delay! the second you touch that shifter the gears shift. needless to say, i bought that very car cool.gif
RalliKai
Posted: Jul 20 2009, 06:28 AM


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QUOTE
Oh ya,so will manual transmission cost less gas compared to auto transmission on daily usage?? w00t2.gif


It really depends how you drive. Since you can control when the car shifts in a manual, it is easier to pull off better fuel mileage in one than in a vehicle with an automatic transmission. If you keep the revs low that is.