CVT gearboxes

Mebz · 22nd August 2012, 18:17

Any one got any personal experiences with them? How did you find it? Are they reliable? What are the maintenance items and are they reliable?

I've had a quick google, but thought with so many genius's on here, it would be worthwhile posting on here for your opinions.

Grayfox · 23rd August 2012, 05:13

CVT the most evil invention to ever be put in a car.

Kremmen · 23rd August 2012, 06:36

The reviews I've read have all homed in on the CVT's behaviour of allowing the engine to briefly over rev when you accelerate.

It seems it's a case of hit the throttle, the engine will respond and it will then be a short while for the road speed to match the engine speed.

bboy · 23rd August 2012, 08:10

These boxes are different in the way they work.

CVT's have a belt (metal band) driven system and not gears, the belt rotates around a cylinder that changes diameter which mimicks that of different gear ratios.

Hence, when you drive these cars what you actually experience is that the engine revs to it's maximum torque and then the gearbox does the rest by Constantly Varying the Transmission (CVT) to get to the speed you want.

Honda also did provide a manual override which you can set so that it drives like a normal auto by pre programming cylinder sizes making it feel like it was changing gears, for those who didn't like the CVT feeling.

One thing is for sure that they had these in the old Jazz but when the new one came out they installed the iShift, needless to stay after the demise of the iShift they have bought back the CVT into the new Jazz.

As far I recall they were one of the most reliable CVT around and these gearboxes have a good reliability reputation. The real question is matter of taste and whether you can live with it just like the iShift, which I didn't like as every gear change felt like a mini whiplash

NH Dan · 23rd August 2012, 16:59

Quote:

Originally Posted by Grayfox

CVT the most evil invention to ever be put in a car.

No, that was a woman the I-shift gearbox.....

22nd August 2012, 18:17	#1 (permalink)
Mebz Supporter Car: 2010 Avensis, D4D Join Date: 22nd April 2011 Location: UK Posts: 283 Thanks given: 30 Thanked 16 Times in 14 Posts iTrader: (0)	CVT gearboxes Any one got any personal experiences with them? How did you find it? Are they reliable? What are the maintenance items and are they reliable? I've had a quick google, but thought with so many genius's on here, it would be worthwhile posting on here for your opinions.

23rd August 2012, 08:10	#4 (permalink)
bboy Car: 2009 1.8 EX GT, DSB Join Date: 2nd December 2010 Location: uk Posts: 69 Thanks given: 6 Thanked 13 Times in 13 Posts iTrader: (0)	These boxes are different in the way they work. CVT's have a belt (metal band) driven system and not gears, the belt rotates around a cylinder that changes diameter which mimicks that of different gear ratios. Hence, when you drive these cars what you actually experience is that the engine revs to it's maximum torque and then the gearbox does the rest by Constantly Varying the Transmission (CVT) to get to the speed you want. Honda also did provide a manual override which you can set so that it drives like a normal auto by pre programming cylinder sizes making it feel like it was changing gears, for those who didn't like the CVT feeling. One thing is for sure that they had these in the old Jazz but when the new one came out they installed the iShift, needless to stay after the demise of the iShift they have bought back the CVT into the new Jazz. As far I recall they were one of the most reliable CVT around and these gearboxes have a good reliability reputation. The real question is matter of taste and whether you can live with it just like the iShift, which I didn't like as every gear change felt like a mini whiplash Last edited by bboy; 23rd August 2012 at 08:22.

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23rd August 2012, 05:13	#2 (permalink)
Grayfox Most Active Australian Car: 2010 Black Civic Si FK2 Join Date: 1st February 2012 Location: NSW, Australia Posts: 3,006 Thanks given: 67 Thanked 277 Times in 262 Posts iTrader: (0)	CVT the most evil invention to ever be put in a car.

23rd August 2012, 06:36	#3 (permalink)
Kremmen Super Moderator Car: MY13 1.8 EX Auto Join Date: 7th January 2007 Location: West London Posts: 6,921 Thanks given: 183 Thanked 242 Times in 215 Posts iTrader: (0)	The reviews I've read have all homed in on the CVT's behaviour of allowing the engine to briefly over rev when you accelerate. It seems it's a case of hit the throttle, the engine will respond and it will then be a short while for the road speed to match the engine speed.