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SMG Driving Technique - Engage Neutral at Lights?
Interested to see the views of other SMG drivers out there.
When you come to a stop at say a set of traffic lights, do you engage neutral or leave the transmission in gear? It may seem like a daft question, but given that SMG is essenentially a manual transmission, you wouldn't sit at a set of lights in 1st gear with the clutch depressed if driving a stick would you? -- you'd stick it in neutral.
I'm just wondering which technique would produce the most longevity from the clutch/transmission?
zzzz..
| | Reply » SMG Driving Technique - Engage Neutral at Lights? |
Quote: Interested to see the views of other SMG drivers out there.
When you come to a stop at say a set of traffic lights, do you engage neutral or leave the transmission in gear? It may seem like a daft question, but given that SMG is essenentially a manual transmission, you wouldn't sit at a set of lights in 1st gear with the clutch depressed if driving a stick would you? -- you'd stick it in neutral.
I'm just wondering which technique would produce the most longevity from the clutch/transmission?
zzzz.. | I just keep it in D.
The SMG car does not move forward unless you give it gas. This means that the way the transmission is set up, it will not be providing thrust if your foot is off the gas pedal. Hence you are not holding the car back with your brakes (unlike the slush box).
I think the automatic clutch of the SMG disengages the gear when you are stopped and have a foot on the brake. Once you take it off the brake, it will engage the gears.
| | Reply » SMG Driving Technique - Engage Neutral at Lights? |
Leave it in D. When driving a manual and putting it in neutral at a stoplight you usually also let out the clutch and thereby reduce to load on itīs bearings. But when you put SMG on neutral, it still keeps the clutch depressed (to react faster when you do put it in gear), so thereīs no benefit to putting it in neutral.
| | Reply » SMG Driving Technique - Engage Neutral at Lights? |
I always put it in Neutral like I do w/ my manual trannys. 
| | Reply » SMG Driving Technique - Engage Neutral at Lights? |
Quote: When you come to a stop at say a set of traffic lights, do you engage neutral or leave the transmission in gear? It may seem like a daft question, but given that SMG is essenentially a manual transmission, you wouldn't sit at a set of lights in 1st gear with the clutch depressed if driving a stick would you? -- you'd stick it in neutral.
I'm just wondering which technique would produce the most longevity from the clutch/transmission? | Don't own one, never driven one, but my guess is you should leave it in gear for longevity.
The clutch in a clutchless-manual is controlled electronically and, from what I've read, uses hydraulics to move the clutch, instead of a spring and throwout bearing. It should make no difference to the clutch mechanism whether it's engaged or disengaged, so you might as well stay in gear (less unnecessary shifting).
| | Reply » SMG Driving Technique - Engage Neutral at Lights? |
Quote: Don't own one, never driven one, but my guess is you should leave it in gear for longevity.
The clutch in a clutchless-manual is controlled electronically and, from what I've read, uses hydraulics to move the clutch, instead of a spring and throwout bearing. It should make no difference to the clutch mechanism whether it's engaged or disengaged, so you might as well stay in gear (less unnecessary shifting). | I believe it still has the same spring mechanism as the regular manual and the hydraulics will only depress the clutch but simply release the pressure when engaging it. Otherwise to hydraulically engage the clutch, youīd need constant hydraulical pressure (and quite a lot actually) to keep it engaged. That would put quite some stress on the hydraulics pump. Since itīs electrically operated and runs at very high revs (ever heard on in operation? Itīs a screamer), it would probably not last very long. Besides it would not be very efficient because to keep up the hydraulic pressure all the time would mean running the pump all the time which would put an unneccessary load on the alternator. The way it is, the pump only feeds the hydraulics when the system pressure drops beneath a certain level. So when in gear and driving without shifting, the pump will only operate occasionally when the hydraulic pressure has dropped. Much more efficient
And yet it probably makes no difference wether you put it in N or not, since I believe the SMG keeps the clutch disengaged even when in N as to get in gear faster when asked to. At least on my SMG car you would not notice any difference in revs or load or even any aural difference when going from 1 to N except for the gear linkage clunk from changing the gears to neutral.
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SMG Driving Technique - Engage Neutral at Lights?