Turbo on a Sentra

[david_mejia9190]

Is it possible to turbo the new 2.0L Sentras if they have a CVT?? Not that im planning to turbo it anytime soon, but im curious...

[nametakennow]

Anything is possible. Insofar as I know it hasn't been done yet, but I'm sure someone will try it.

I don't know how the CVT is going to like all that extra power, though.

[gotak]

Yeah there's been discussion on the Versa forum about the CVT might not be up to it. Not sure if the 2.0 has a similar one to the Versa or a the one from the Murano/Altima like the 2.5 liter engine does.

[livinloud98]

the CVT may need to be modified to be more pressurized...that way when the driveshaft spins inside the transmission case it will be grabbed faster than it normally would... idk i didnt even think about that till now

and how would a turbo work with that, beacuse it blows off when the car shift to a higher gear? the sentra when you floor it it just sits at 6krpms and doesnt move as you keep accelerating? and pressure in the turbo would just keep building... that could be good in one way but bad at another that youd have to let off the gas for the prssure to relase

am i right?

[david_mejia9190]

yup your definitely ritethose questions are the exact same ones that were runnin through my headi guess ill keep it naturally aspirated until someone else turbos their 2.0 Sentra/Versa wit CVT

[nametakennow]

That's what a wastegate actuator is for, guys.

[david_mejia9190]

That's what a wastegate actuator is for, guys.

thats true these forums are helpfuln i never been a forum guy

[livinloud98]

doing an exhaust and intake wouldnt be enough power to have to mod the cvt right?

stock my car eats civics, fits corollas, and celicasi cant beat at tc starting at 0mph but if we do a 20mph roll ive beaten the tC..

[nametakennow]

Ha, no. It'll take some fairly serious modifications to have to start digging into the CVT, I think. At the earliest I'd think it'd be would be around the time you'd replace the clutch on a manual transmission, which is a good 50-70% power bump (usually) on low power car.

[david_mejia9190]

doing an exhaust and intake wouldnt be enough power to have to mod the cvt right?

stock my car eats civics, fits corollas, and celicasi cant beat at tc starting at 0mph but if we do a 20mph roll ive beaten the tC..

well i was planning to put those mods on pretty soonn yea for a stock automatic its pretty quicki ran 17s on the track n that was with a really late start

[BeyondBiscuits2]

If you are going to turbo your car, you better do it with a manual transmission. Automatics are good for some things, but turbo'ing is not one of them. A supercharger, however, might be a good compromise. Since they are directly linked to the engine via a drive belt, they would be in better sync with the CVT transmissions.

[livinloud98]

well i was planning to put those mods on pretty soonn yea for a stock automatic its pretty quicki ran 17s on the track n that was with a really late start

i found that when you start in low you get a better take off..and than hit it up into drive with over drive off and than put over drive on once you get up to like 50 mph

also if you wanna try sumthing fun...find a nice hair pin turn, and drop the car into low before the turn, and gas out hard in low, it takes the turns nasty that way...and the cvt isnt at all like a standard auto transmission, i feel it doest slip as much as a regular trans does

[david_mejia9190]

ill try that next time im at the tracks to see what time i get

[nametakennow]

It doesn't slip as much because there's no torque converter nonsense to slip.

I personally think a DSG/SST/dual clutch is a better transmission, but in the long run they may end up coexisting.

[livinloud98]

no but deffinatly the CVT is a much better system than a conventional automatic transmission, it offers pretty good performance, good gas milage, and it shifts so smooth.

im just wondering how these thing will hold up 100,000 miles down the roadlike will the life expectancy be as long or longer than a standard transmission.

the only complaint i have about my car is the fact that its so computer controlled.everything is drive by wire in which my audio system draws a good amount of power, and when i really crank it up you notice things dont work as good as they should, like on bass hit the car almost jerks to the bass beacuse its giving the comuter less of a signal from the gas pedal...sorry to get off topic but i just felt the ned to bring this up

[nametakennow]

A DSG is not a conventional auto, it's an automated manual with dual clutches. My reasoning for preferring it has to do with longevity and performance. It "shifts smooth" because it doesn't shift, and while it performs well enough that it might replace the conventional automatic in most applications, performance vehicles will need the sort of response that a CVT just can't deliver. I also can't see the CVT belts taking punishment for as long as conventional parts do.

You should definitely look into a higher output electrical system. Since the engine is fairly new this may be difficult, but if it's causing issues with control inputs, especially given that the car also has electric power steering, that's scary stuff.

[northhoustonser]

not only will it clash with the cvt but, with the enginbay design... there is currently one turbo specV in existence right now (to my knowledge) and the kit was from a B15 sentra modified to fit on a specV and the engine bay design on the new sentra doesnt leave any room for a turbo instalation or intercoolerpiping instalation. also in order for the intercooler to be mounted, some metal parts have to be cut.

[gotak]

It doesn't slip as much because there's no torque converter nonsense to slip.

I personally think a DSG/SST/dual clutch is a better transmission, but in the long run they may end up coexisting.

it does have a torque converter. Just a locking converter that locks earlier than in most cars. You can feel when it locks and unlocks cause the car slows down a lot when you let go of the gas but when it gets to around 40 kph (whatever that is in mph) it starts to coast better.

[livinloud98]

A DSG is not a conventional auto, it's an automated manual with dual clutches. My reasoning for preferring it has to do with longevity and performance. It "shifts smooth" because it doesn't shift, and while it performs well enough that it might replace the conventional automatic in most applications, performance vehicles will need the sort of response that a CVT just can't deliver. I also can't see the CVT belts taking punishment for as long as conventional parts do.

You should definitely look into a higher output electrical system. Since the engine is fairly new this may be difficult, but if it's causing issues with control inputs, especially given that the car also has electric power steering, that's scary stuff.

yeah i already have an extra bat in the back but from what i read the car only has a 110 amp alternator, as soon as i see one being made for this car that is higher amperage i will buy it.. and i wansnt comparing the DSG to the cvt i was comparing conventional auto to cvt... but is the dsg what the GT-R uses?

[nametakennow]

The GT-R uses Nissan's version of a DSG, yes.

[livinloud98]

well ill tell ya how my CVT holds up beacuse i bought my car in september and i already have 15k miles on it since i commute to school, so withing 2 years my car is gonna have a good amount of milage on it...

hope these things are durable lol

[david_mejia9190]

well ill tell ya how my CVT holds up beacuse i bought my car in september and i already have 15k miles on it since i commute to school, so withing 2 years my car is gonna have a good amount of milage on it...

hope these things are durable lol

if not theres always the warranty on it

[livinloud98]

if not theres always the warranty on it

pretty sure the waranty is only 36,000 miles

right?

[nametakennow]

The powertrain warranty on the CVT models is weirdly short, 36k sounds right.

[david_mejia9190]

yea that sounds riten the dealer always tries to find a reason not to cover your car with the warrranty

[08sentra2.0sl]

the CVT may need to be modified to be more pressurized...that way when the driveshaft spins inside the transmission case it will be grabbed faster than it normally would... idk i didnt even think about that till now

and how would a turbo work with that, beacuse it blows off when the car shift to a higher gear? the sentra when you floor it it just sits at 6krpms and doesnt move as you keep accelerating? and pressure in the turbo would just keep building... that could be good in one way but bad at another that youd have to let off the gas for the prssure to relase

am i right?

This is an altima cvt turbo, http://www.youtube.com/watch?v=1Q_yWMziHYs

its sweet

[nametakennow]

The owner of that Altima is a mod here. The CVT did not like the turbo, fyi.

[08sentra2.0sl]

really? didn't know that.

oh, what happened to the transmission? if you know

[nametakennow]

I don't know the details, but it more or less amounted to that the turbo created too much torque and may have caused some problems.

[08sentra2.0sl]

oh thats not good at all..maybe there will be something in development either a stronger CVT or a less abusive turbo for all us with a cvt transmission