Experience with CVT ?

[Zrun]

Can someone share their experience with CVT?

 

Does it lead to better FC?

Maintenance problems?

Quality?

 

I heard that you can cruise at over 100kmh and the CVT will set at 1900rpm.

[Littleblackalfa]

yes, you can cruise at 100km/h, and it remains below 2k RPM. however, you can't compare this reading to a conventional gearbox. The CVT uses a different scale. So, it can be at that low rpm, but still drink fuel. It runs on a belt and a set of variable sized pulleys. It's got no gear shifting, and it's a smmoth ride all the way. BUT, more power loss, and lower torque output.

 

It's for cruising. Not for bruising...

[Qpik]

any particular brand that u r refering 2?

 

my SE (1 fm orix n the other fm TC-bukit timah) tested on the latio std & premium. they said that the CVT is little bit noisy. however, need 2 verify with those premium & sport owners.

[Cheekg99]

cruising v smooth

[Zrun]

Yeah, my major concern is power loss compared to regular AT. Is it comparable or worse?

 

Able to use CVT to adjust to maximum efficient RPM can be very good for fuel mileage. So, I think this can outweight the powerloss.

 

I know it is not for punch and go acceleration, and it is good for smooth driving.

[Zrun]

Thinking of Nissan Murano.

 

Pictures:

http://images.google.com/images?q=nissan%2...ial&sa=N&tab=wi

[Qpik]

r u getting??

 

wah....good choice...love that baby

 

can't wait 4 u to post yr pics (i meant yr prospective ride)

[Kax2]

Used to own the ES8 CVT civic.

Low end torque is damn smooth and pickup is super. Only prob is that you have to change the CVT fluid every 2 or 3 years and that CVT can't handle rough driving, especially at high torque.

CVT got noisy engine noise after 1 year and tend to drag alot at low torque but visit to KM fixed that when they changed the clutch that will fix the fault.

I recommend it for leisure and luxury driving but not for speed demon.

[Toalson]

Any effect on FC for that reason....

[Littleblackalfa]

power loss? I don't really know, but in my experience with the Lancer, it was worse. You get that rubberband effect. It's a great car for simple driving, but if you really wanna play, forget it.

[Casey]

wats rubberband effect?

[Normal_aspirated]

what happens when you keep stretching the normal rubber band.......result the band become longer & stretched. Tats wat happen to CVT, esp when you like to floor the pedal to metal very often, u need to replace the CVT beltings within two years.

[Kax2]

FC quite constant varying from 12-15 depending on how I drive.

[Littleblackalfa]

er... no. that's not what I mean. The CVT belt is quite strong. It's quite thick, and made of metal. The only reason it needs changing is if it starts to slip. That one also need to change pulley sometimes.

 

The rubberband effect is where you floor it, RPM shoots up to 6krpm, and your car only accelerates very slightly. sort of like a rubberband. you stretch it, and no matter how fast or slow you do it, it still gives you the same effect in the end: nothing.

[Metalslug]

Used to own the ES8 CVT civic.

Low end torque is damn smooth and pickup is super. Only prob is that you have to change the CVT fluid every 2 or 3 years and that CVT can't handle rough driving, especially at high torque.

CVT got noisy engine noise after 1 year and tend to drag alot at low torque but visit to KM fixed that when they changed the clutch that will fix the fault.

I recommend it for leisure and luxury driving but not for speed demon.

 

erm is the CVT fluid = ATF? if so, i dont think the changing is at 2-3 yrs rite? by right ATF is 20k if i am not wrong?

[EventH]

apparently for nissan, the CVT transmission fluid (Primera) is different from the normal ATF usd in the regular 4-speed autos. More expensive.

[Palioni]

CVT transmission generally has much lower loss than conventional AT boxes, as they do not use torque convertors, which leads to transmission loss of about 20-25%. CVT loss would be low at 5%-10% since the gearing is "directly connected" using metal belts. Also, not all CVT boxes and AT boxes are equal in performance.

 

With CVT, moving off the line is tad slower, as the engine speed builts up without substantial acceleration....which is usually obvious when you WOT ans cause the "rubber-band" effect. Moving off the line quickly require some experiences....not just WOT like the AT boxes. However, once on the move, CVTs can be quicker than normal ATs.

 

Reaping good fuel comsumptions figures requires you to know the CVT box characteristics. Last but not lease, whether a car is fast or not (in the context of e.g 1.6l NA)is not just based on engine specs alone (usually on paper), but the amount of power still left at wheel after your transmission loses them.

 

For those interested, can visit the below links for more info on CVT technology:

www.edmunds.com/ownership/techcenter/articles/45104/article.html

www.insightcentral.net/KB/faq-cvt.html

 

Just some humble opinions.....

[Normal_aspirated]

still can't beat manual tranny, unless it's selespeed one......