Saaby just reiterated what I said.
F1 racing = matching revs on downshifting.. samething with SMG III on the E60 M5.
trust me, I know.
lol OWNED.
Anyone else wanna take a shot at the title?
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Saaby just reiterated what I said.
F1 racing = matching revs on downshifting.. samething with SMG III on the E60 M5.
trust me, I know.
lol OWNED.
Anyone else wanna take a shot at the title?
double clutching... waste of time I say, but drive however way you want.
But SMG gearboxes have synchronizers. F1 boxes do not have synchronizers.Originally Posted by Brent_Vino
But SMG gearboxes have synchronizers. F1 boxes do not have synchronizers.
Correct they are just six/seven(F) sequential, 1(R) boxes, semi-automatic, computer coupled/controlled with electronic&hydraulic multi-plate, carbon, double-clutching systems, so after the paddle has been tapped the computer completely controls everything upon downshifting...including throttle...
Ahhh to have money. (100million + on the development of the new ferrari cars.)
Rather quick little cars too...
0-63MPH in ~2.0seconds
0-125MPH in ~4.0seconds
(All depending on trim/package)
I swear you can open up a SMG box and show Brent to his face the synchros, yet he will still say that they are not.But SMG gearboxes have synchronizers. F1 boxes do not have synchronizers.
It's a good system. I remember when they became popular in F1 in the late 1990's, I thought it would be great as a replacement for standard planetary hydraulic epicyclic gearboxes like on pretty much any "automatic" car since the 1940 Oldsmobile. Even better efficiency than a manual.Correct they are just six/seven(F) sequential, 1(R) boxes with a semi-automatic, coupled with electronic&hydraulic multi-plate, carbon, double-clutching systems, so after the paddle has been tapped the computer completely controls everything upon downshifting...including throttle...
Ahhh to have money. (100million + on the development of the new ferrari cars.)
Rather quick little cars too...
0-63MPH in ~2.0seconds
0-125MPH in ~4.0seconds
(All depending on trim/package)
The problem is the clutch though. Since the clutch isn't in control by the driver, you need some way to make the computer know what a driver knows from years and years of experience, in extremely diverse conditions (hills, ice, heavy acceleration or light). In F1 it was easy, since the car has very low mass, and is going on a flat surface (to start the car in motion). Once moving you can open and close the clutch very quickly without the need for slip.
Porsche had the "Sportomatic" option in the 911 back in the mid 1960's. The Sportomatic was a semi-automatic gearbox w/o a clutch. It was a standard gearbox with a torque converter and a clutch that opened when the stick went into neutral and closed when it entered a gear. It worked passibly OK, since the torque converter allowed you all the slip necessary to take off uphill and even stop and start in gear (such as red lights). But having the torque converter, not a lockup type either, made the efficiency of the box more or less similar to a traditional automatic. Nobody bought the 911 Sportomatic.
Citroen had a similar system on the DS IIRC.
Flash forward to the late 1990's with computer controls, and Saab basically did the same as the Sportomatic on the 900 SE Turbo, called "Sensonic". But Sensonic didn't have a torque converter - it just had a robot clutch and a standard 5-speed box. Sensonic actually did work pretty well from what I have heard, however they were never brought into North America.
Hahaha in my focus...I tend to drive with a heavy foot so I shift alot!!! but now with the Gas prices I am trying to cut back so far the cutting back is not working...I have slowed down on city streets but I see, to be driving faster on the highways I dont know why...??? Possibly because of the Brick I wear in my right shoe!!
this will help your gas milage for when the gas prices rise to 3.50 (for me at least)
inflate your tires properly, maybe a few lbs OVER.
clean/replace your air filter
shift EARLY and instead of driving around in 4th gear, go ahead and use 5th.
run higher octane once or twice and put some Techtron Chevron fuel cleaner in to clean out the carbon deposits.
Actually thats incorrect, they are in direct correlation with TCD (ETCS) at all times (and they do have feedback), so the computer will not open and close the clutch assembley as quick (slip it) to save those parts as needed, and as a prevention measure... many are now also fitted with A-SD's on a 10second delay.
Well but not to the degree of moving from a stop uphill pulling a trailer with your mother in law in the back
what's an A-SD, too much alphabet soup in the modern automotive world :?
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