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Discussion Starter · #1 ·
from http://www.apexjapan.com
-SPEED PADDLES ANYONE?
WORLD’S FIRST PRODUCTION 8-SPEED CVT TAKES OFF IN 350GT-8
Kazunori Yamauchi of Gran Turismo game fame was chuffed. Nissan engineers were asking HIM about paddle design. Why? Because the producer of the world’s biggest selling driver simulation game had painstakingly tested more than a dozen prototypes before deciding on the paddle destined for his PlayStation Force Feedback steering wheel kit. And now, Nissan had their own paddle design that needed evaluation.
At a test drive of Nissan’s soon-to-be-launched Skyline 350 GT, Nissan engineers were all ears. This model will be the flagship version of the new Skyline range which is currently headed by a 3.0 litre V6. Nissan designers had developed the world’s first production 8-speed Extroid CVT with dual paddles a la F1 style, and they wanted feedback from the assembled scribes and racing drivers.
Married to the new 350 GT-8, which boasts the same 3.5 litre V6 powerunit as that destined for Nissan’s upcoming 350Z, the Nissan generates 200kw (272ps) at a lofty 6000rpm, and 353 Nm (36.0 kg-m) of torque at 4800rpm. The all-new 8-speed CVT is an extension of the revolutionary 6-speed CVT Nissan introduced on its 3.0 litre Gloria model more than three years ago. That model set new standards in shift shock-less response.
The GT-8 takes the equation two steps further. Firstly, it adds two more gears and narrows the ratios between gears substantially. First comes up around 55kph at the 7500rpm redline while second is reached at 88 and third arrives quicker than expected – at 115kph. And secondly, 0.2 seconds is all the time you need to wait to have your chosen gear on tap. Fully. Immediately. So basically gear selection happens as fast as you can flick your fingers. There’s no delay like that with Alfa 147’s Selespeed. The CVT is perfectly matched to the 3.5 litre. Pumping out 280 bhp, the 350 has loads of low to mid-range torque, superb acceleration over the entire power band, and its exhaust note sounds more like a V8 than a V6. And having access to a transmission that transfers power so directly, and in real time, is something that will have other manufacturers talking for a long time.
Only thing is that after you've dropped four gears entering a tight corner, from 8th back to 2nd, you begin to wonder whether 8-speeds are necessary. In the just-launched version of GT3, Yamauchi has given the Nissan GT-R Concept a 7-speed CVT based on the 350 GT-8 paddle feel and speedy 0.2 second gear change. While Nissan wouldn’t let him prematurely add the 8-speed CVT to his game, a full month before the actual 350 GT-8 launch in Japan, they did give the green light for him to fit a modified version to the next generation Godzilla. And it was Yamauchi who chose 7 gears in stead of 8. He says “8 is too many, and realistically, how often will you use the 8 th gear?” Can’t argue there.
Now, back to that tight corner I’ve just entered in 2 nd. Ideally of course you'd want to be sitting on grippier rubber. The Dunlop Sport 230 tires (215/55R17) don't quite make the grade. While the rear-drive 350 GT-8 has progressive understeer dialed in for good measure, switch the traction control off and controlled power sliding is yours for the taking. Grip levels and chassis rigidity are exceedingly high, but once adhesion limits have been reached, you find yourself playing with massive dollops of opposite lock as you try to keep the revs high in 2 nd. Hit the redline in mid corner and just flick to third with no drama. The gear response is that quick and shift shock free.
And the paddle Nissan finally chose is superbly placed behind the steering wheel and packs excellent rigidity. Yamauchi’s comments, as well as those of forty or so other industry types, certainly steered GT-8 designers in the right direction. The virtual world of GT3 has come alive in the 3.66 million yen 350 GT-8. And Yamauchi is smiling…It used to be that games copied cars.
Now car designers seem to be copying games.

 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (speedracer3)

I wonder if Audi will counter this by offering 12 speeds

especially since the change would be almost all software
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (Levish)

What's the point of having a CVT and limiting the number of gears?
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (speedracer3)

Hmm, I think noone else has leather-wrapped shifting paddels.
 

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Discussion Starter · #6 ·
Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (A4Jetta)

quote:[HR][/HR]Audi needs to change the shift indicator to small size to fit 13 speeds from 6 speeds.
[HR][/HR]​
Audi needs a CVT that will handle more powerful engines
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (speedracer3)

I don't think the CVT has been marked for US production yet. It's too bad, because the G35 could really use the high-tech image, even though I'd rather have the upcoming 6MT personally.
 

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Discussion Starter · #9 ·
Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (AKADriver)

quote:[HR][/HR]I don't think the CVT has been marked for US production yet. It's too bad, because the G35 could really use the high-tech image, even though I'd rather have the upcoming 6MT personally.[HR][/HR]​
The G35 coupe will have a CVT, but I don't think it's the 8 speed.
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (speedracer3)

Pretty stupid to say a car having 8 speed CVT.... WTF??!?!? i'd say the car will have paddle-shifting race type gear transmission... it's not smart to program CVT with gear ratios given the potential of it
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (Sharpix)

Focus Groups show that people freakout over the rubber band feel and actually miss the sensation of shifts.
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (uncleho)

WTF does Japan get a 7500rpm redline while the 350Z with the same engine gets a 6600rpm redline?
http://****************.com/smile/emthdown.gif
 

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I dont think itll be coming to the US anytime soon. Whered you hear it was coming in the coupe? Nissan only has 2 cvts. The one in the Primera (for fWD cars, which is like Audis that it uses a belt), and this one which uses rolling discs which is for RWD cars. Both handle a lot of power. So if we do get a RWD CVT vehicle from Nissan (or for Infiniti) it will have 8 speeds.

THis has been posted many times. I think what 8 speeds means is that you have 8 artificial gears that you can shift through yourself. Or you can let it 'shift' on its own.
 

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Discussion Starter · #14 ·
Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (Infiniti)

quote:[HR][/HR]I dont think itll be coming to the US anytime soon. Whered you hear it was coming in the coupe? .[HR][/HR]​
Opps....I was thinking about the Murano...which is getting a CVT.
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (Sharpix)

I have to dig up the article that said something like the CVT in the Audi doesn't have any better mileage than the regular auto. Did anyone ever hear of this?
I know GM's attempt again at CVT is no shining piece of efficiency over an auto.
I wonder how efficient Nissan's is.
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (uncleho)

quote:[HR][/HR]I have to dig up the article that said something like the CVT in the Audi doesn't have any better mileage than the regular auto. Did anyone ever hear of this?
I know GM's attempt again at CVT is no shining piece of efficiency over an auto.
I wonder how efficient Nissan's is.[HR][/HR]​
Audi's CVT is just as efficient as a manual.
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (Hajduk)

quote:[HR][/HR]What's the point of having a CVT and limiting the number of gears?[HR][/HR]​
I think it's just for a "sport mode"... the actual number 8 seems a bit gimmicky, but it doesn't really matter because no power is lost between shifts (the engine never disconnects).
I would imagine there is some sort of "cruising" mode or "economy" mode since it's all just software anywhere (and software is cheap). That's where the CVT would shine as it's continuosly changing the ratio...
 

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Re: Nissan launches new 8 speed CVT on the 350 GT/Infiniti G35 (uncleho)

The point of the Nissan CVT is that it can act like a manual when you want to, and shift by yourself with 8 speeds (6 in the Cedric with VQ30DET). Put the 3.5 V6 and 8-speed CVT into the Cedric and sell it at a price not too far above the 3.0 direct injection V6 (in the JDM the Skyline 350GT costs Y3.6 million while the 300GT costs Y3.2 million or so, corresponding to US$28,000 and US$25,000 respectively), it'll still be good value.
 
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