Drivetrain Paddle shift w/clutch from M7...
All I have to say is this thread went from really awesome, to really lame. The thing about arguing on the internet is it's like competing in the special olympics...at the end of the day you're still retarded.
Lets stick to things that matter like getting paddle shifters for minis and keep the childish stuff off the boards.
Thanks
Lets stick to things that matter like getting paddle shifters for minis and keep the childish stuff off the boards.
Thanks
seems clear who brought Danny's name into the convo and it wasn't a μ member was it?
Whatever issue you have with Danny for screwing around in a parking lot at 2 am with nobody around shouldn't have anything to do with me. There were a lot better ways to deal with it than the way you did.
Judging from your sig on MU it looks like your thing is to "Take people's Stickers", As if that somehow signifies something
. Part of the reason I never got into MU, there are some nice people, but I'm not into the whole elitist attitude there. It's easier to get an American Express Black card than to become an MU member
.
Whatever issue you have with Danny for screwing around in a parking lot at 2 am with nobody around shouldn't have anything to do with me. There were a lot better ways to deal with it than the way you did.
Judging from your sig on MU it looks like your thing is to "Take people's Stickers", As if that somehow signifies something
. Part of the reason I never got into MU, there are some nice people, but I'm not into the whole elitist attitude there. It's easier to get an American Express Black card than to become an MU member
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Let me get this back on track. I will preface with a few statement:
1. I have no love for M7 (well known).
2. I have no plans to buy this product. Ever.
3. I am not an engineer.
That being said, I have a few questions. I find the product intriguing, even if the price is
. My understanding is that the M7's part in the "development" of this unit is only insofar as adapting it for the Mini application, so they might not have the answers to my purely educational questions. I am not doubting the units quality, concept, or reliability as it seems it has been used successfully before. What I am curious about is the long term effect on the affected parts.
After reading the M7 sales pitch on their website, I seem to recall shift times of 200 ms. How will the clutch and trany internals hold up? Specially on the older Midlands units. Do you not need higher tolerances and better parts to accommodate things that are moving now faster. Kind of like the reason that Audi, BMW, others use the dual clutch in their sequential shifters?
Maybe someone with more expertise than me can discuss this.
P.S. This should be on topic enough.
1. I have no love for M7 (well known).
2. I have no plans to buy this product. Ever.
3. I am not an engineer.
That being said, I have a few questions. I find the product intriguing, even if the price is
. My understanding is that the M7's part in the "development" of this unit is only insofar as adapting it for the Mini application, so they might not have the answers to my purely educational questions. I am not doubting the units quality, concept, or reliability as it seems it has been used successfully before. What I am curious about is the long term effect on the affected parts. After reading the M7 sales pitch on their website, I seem to recall shift times of 200 ms. How will the clutch and trany internals hold up? Specially on the older Midlands units. Do you not need higher tolerances and better parts to accommodate things that are moving now faster. Kind of like the reason that Audi, BMW, others use the dual clutch in their sequential shifters?
Maybe someone with more expertise than me can discuss this.
P.S. This should be on topic enough.
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What sort of shift times are the big boys getting? I know they achieve those by disengaging the running gear and engaging the next gear at the same time. Certainly not possible with a standard transmission. I bet this thing will be harsh on the syncros.
Originally Posted by according to about.com
DSG: An SMT without the lag
The DSG/S-Tronic all but eliminates the lag inherent in SMTs. The DSG is essentially two 3-speed gearboxes with a pair of clutches. When the driver starts out, transmission #1 is in first gear and transmission #2 is in second. The clutch engages and the car starts out in first. When it's time to change gears, the DSG uses the clutches to swap transmissions. The #1 transmission immediately shifts to third gear. At the next change the DSG swaps transmissions again, and #2 shifts to fourth. The DSG's computerized controller calculates the next likely gearchange and shifts the "idle" transmission into that gear. The advantage is the speed of gearchanges: The DSG takes about 8 milliseconds to upshift. Compare that to the SMT in the Ferrari Enzo, which takes 150 ms to upshift. It's also significantly faster than a human: According to Audi, the A3 runs 0-60 in 6.9 seconds with a 6-speed manual and 6.7 seconds with the 6-speed DSG. Like the SMT, the DSG performs double-clutch downshifts and can skip gears (i.e. downshifting from 6th directly to 4th, 3rd, etc).
The DSG/S-Tronic all but eliminates the lag inherent in SMTs. The DSG is essentially two 3-speed gearboxes with a pair of clutches. When the driver starts out, transmission #1 is in first gear and transmission #2 is in second. The clutch engages and the car starts out in first. When it's time to change gears, the DSG uses the clutches to swap transmissions. The #1 transmission immediately shifts to third gear. At the next change the DSG swaps transmissions again, and #2 shifts to fourth. The DSG's computerized controller calculates the next likely gearchange and shifts the "idle" transmission into that gear. The advantage is the speed of gearchanges: The DSG takes about 8 milliseconds to upshift. Compare that to the SMT in the Ferrari Enzo, which takes 150 ms to upshift. It's also significantly faster than a human: According to Audi, the A3 runs 0-60 in 6.9 seconds with a 6-speed manual and 6.7 seconds with the 6-speed DSG. Like the SMT, the DSG performs double-clutch downshifts and can skip gears (i.e. downshifting from 6th directly to 4th, 3rd, etc).
personally the shift time seems too fast to be safe. That's one of the concerns i raised with randy. He said they can program the delay to be anything that you/they want it to be. Fwiw when you hit the paddle it doesn't seem to shift overly fast. Sounds about like it should when you shift yourself.
I'm not sure i could shift my car in 200ms. But who knows... never really tried or timed it.
I'm not sure i could shift my car in 200ms. But who knows... never really tried or timed it.
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personally the shift time seems too fast to be safe. That's one of the concerns i raised with randy. He said they can program the delay to be anything that you/they want it to be. Fwiw when you hit the paddle it doesn't seem to shift overly fast. Sounds about like it should when you shift yourself.
I'm not sure i could shift my car in 200ms. But who knows... never really tried or timed it.
I'm not sure i could shift my car in 200ms. But who knows... never really tried or timed it.
But whatever floats your boat.
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yeah at that point it would be about maximizing the shift time and consistency. Again like i said in my first post in this thread and like randy said... this isn't for everyone. But if you look at the system and the bracket system for the paddles they've made... they are making a real run at it. I would never have the money for such a system in my car... likely i'd spend it on more obvious dollar per hp improvements.
But whatever floats your boat.
But whatever floats your boat.
this part makes sense to me. electronics can move faster (or at least send signals) than mechanical parts. it may need to be necessary to slow electronics to fit the mechanical.
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Sorry to steer off topic, but I have just been aware of what happened. I wanted to clearly apologize for the incident and let people know I am aware it was a horrible call and it won't happen again. No replies needed as I don't want to take away from the thread. Once again no hard feelings from my end onto anyone involved, and hope it's water under the bridge. Lets just move on and I have obviously learned from it.
Thanks,
Danny D
MINICORSA
818-994-0338
Thanks,
Danny D
MINICORSA
818-994-0338
Sorry to steer off topic, but I have just been aware of what happened. I wanted to clearly apologize for the incident and let people know I am aware it was a horrible call and it won't happen again. No replies needed as I don't want to take away from the thread. Once again no hard feelings from my end onto anyone involved, and hope it's water under the bridge. Lets just move on and I have obviously learned from it.
Thanks,
Danny D
MINICORSA
818-994-0338
Thanks,
Danny D
MINICORSA
818-994-0338


