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craig
Dodge Dakota
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4/18/2003
03:06:57
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 Subject: Tranny in new murano...
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have any of you heard anyting about this tranny. i was checking this thing out on carsdirect.com and it says it is 1-speed. I went and asked a guy about it at the dealer down the street and he said some crap i have never heard before about a tranny and that it shifts 100% smoothly, you will never feel it jerk when either up or down shifting. Anyone know how this new tranny works?
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smittyt
Dodge Dakota
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4/18/2003
08:18:13
| RE: Tranny in new murano...
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Well I was told that the new transmission works with pullies and belts. My friend drove one at the dealership and said that it does have variables of that one gear. You can hear the belt or pulley change alot more than you can feel it.
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NDakota
Dodge Dakota
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4/18/2003
09:46:16
| RE: Tranny in new murano...
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CVT: continually variable transmission.
front and rear pullies can change sizes indefinately, so there's an infinate number of gear ratios. If you put it to the floor, it will put the engine at the optimum RPM and then keep it there, while constantly increasing speed.
It's pretty high-tech, and supposedly very durable. When adapted to a high-powered vehicle, I think we're going to be rethinking our ideas of what "fast" 0-60 and 1/4 times are.
Ryan
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chesire17201
Dodge Dakota
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4/18/2003
10:06:07
|  RE: Tranny in new murano...
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yup NDakota nailed it right on the head..... though they aren't new per say, they have been arouns since the late 50's(i beleive mercedes actually invented them), but no one had even thought of the automotive use's for them, they were mainly designed for industrial purposes, but now, well i guees were gonna see what happens when you put 300-600 hp to them as there is big talk of using them in all kinds of professional racing..........
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craig
Dodge Dakota
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4/19/2003
02:35:38
| RE: Tranny in new murano...
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can you use them with stick shifts?
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Almost
Dodge Dakota
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4/19/2003
02:36:36
| RE: Tranny in new murano...
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Continuously Variable Transmission
Invented by DAF, a dutch car maker, has been around for decades and commonly used in snowmobiles. However, it's use was restricted to small, low powered motors and finding a way to smoothly transfer power between engine and transmission has also been a challenge.
http://web.mit.edu/klang/www/cvt.pdf
Audi beat Nissan to the punch with the A4 CVT.
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SilverstoneV8
Dodge Dakota
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4/19/2003
02:47:40
| RE: Tranny in new murano...
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Honda had a civic with that style trans a couple of years back...
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b1llyw
DakotaEnthusiast
4/19/2003
06:30:57
| RE: Tranny in new murano...
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Subaru had a CVT Justy in the late 80's.
Bill White
2002 QC 4x4, SLT , 4.7, 5 spd, 3.92 LSD
1995 CC 4x2, SLT, 318, 5 spd, 3.55 LSD
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Webtiger
GenIII
4/23/2003
00:36:01
| RE: Tranny in new murano...
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My sister had one of those Justy's and it was, to put it mildly, a complete POS.
Ken Grierson
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Texas Todd
Dodge Dakota
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4/23/2003
08:16:29
| RE: Tranny in new murano...
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My Rupp minibike, tecumseh 4 hp engine, had a TC-1, it was a variable speed torque converter, in the 70's. So, no, the theory isn't new.
LMAO, Craig, 'can you use them with stick shifts?'
-that's funny
stick, and stick shifts, ya mean a manual transmission, right?
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sandman
Dodge Dakota
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4/23/2003
18:39:51
| RE: Tranny in new murano...
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Belt durability is still the key issue and power limiting factor. The belt is really kind of cool looking. It is made of pricey alloy materials and one link over rides the other pushing the belt around the pulleys to transfer power. THe trany fluid is green in color. If ever they can make them durable then a new world of fuel efficent monster SUV's could be born!!!
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Mr.H
Dodge Dakota
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4/25/2003
14:38:27
| RE: Tranny in new murano...
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Audi has one out but I forgot what car it's in.
It came in a quattro fer sure though, and was said to be really good.
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Demon Dakota
DakotaEnthusiast
4/25/2003
16:06:14
| RE: Tranny in new murano...
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Mr. H, it's in the A4 models. Honda, Nissan, Audi...they've had production vehicles with them for a couple years now. Nissan just started this year ('03).
K&N Drop in AF (CAI during summer months)
True Dual exhaust and removed third cat
HO Cams & HO Intake
FASTMAN 70mm TB
Autolite 3923 Plugs
TPS @ .76 VDC
IAT Adjuster Mod
14.52@94.2 MPH at Silver Dollar Raceway
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