Originally Posted By: Char Baby
Originally Posted By: Miller88
I noticed the groaning when riding with a coworker who test drove a few Sentras.
The CVT has a bad habit of holding the engine at the EXACT rpm needed to create a resonance throughout the whole car.
Yeah, that's something that Nissan needs to work on. Seems that Honda did a nice job with this in the new Accord CVT.
I have been in a few Nissans with CVTs ... they seem to be getting closer but not quite there yet.
The versa I drove did EXCELLENT for mileage around the city; it was smooth taking off (even hard) and still managed to get 34MPG in stoplight to stoplight. And I was beating on it pretty hard to see how log I could get the gas mileage.
However, when driving on the highway, on the flat, it would randomly rev up to 5000RPM while cruising at 55MPH. Wasn't quite sure of the logic.
It seems that there is some sort of torque converter clutch taht locks up when you take off. The engine is being lugged - that in combination with the torque converter clutch being locked doesn't feel right.
I think they're asking too much out of the 4 cyl at too low of RPMs and there isn't enough balancing in the engine to acellerate at that low speed.
It's the same thing if I shift the focus too early and stomp the gas going 10MPH in 3rd gear.
Originally Posted By: Miller88
I noticed the groaning when riding with a coworker who test drove a few Sentras.
The CVT has a bad habit of holding the engine at the EXACT rpm needed to create a resonance throughout the whole car.
Yeah, that's something that Nissan needs to work on. Seems that Honda did a nice job with this in the new Accord CVT.
I have been in a few Nissans with CVTs ... they seem to be getting closer but not quite there yet.
The versa I drove did EXCELLENT for mileage around the city; it was smooth taking off (even hard) and still managed to get 34MPG in stoplight to stoplight. And I was beating on it pretty hard to see how log I could get the gas mileage.
However, when driving on the highway, on the flat, it would randomly rev up to 5000RPM while cruising at 55MPH. Wasn't quite sure of the logic.
It seems that there is some sort of torque converter clutch taht locks up when you take off. The engine is being lugged - that in combination with the torque converter clutch being locked doesn't feel right.
I think they're asking too much out of the 4 cyl at too low of RPMs and there isn't enough balancing in the engine to acellerate at that low speed.
It's the same thing if I shift the focus too early and stomp the gas going 10MPH in 3rd gear.