CVT gear ratios

[marlin29311]

Does anyone know what the gear ratios are for the manual mode on the CVT? I'm just curious to see if they are the same as the 6MT coupe - i know the final drive ratio's are different, but i was curious if when you put it in manual they match up...

[CanadianCoupe]

I am no expert on this, but your car has no gears. I think in 'manual' mode it simulates gears for a more sporty feel. I think in the specs it shows that arrow going from 1-6 because thats the lowest and highest ratio for the CVT.

[marlin29311]

No, i understand that the car has no gears. My question is about what the "simulated" gear ratios are...

[adidas2go]

I don't think you get the concept here buddy. The simulated gear ratios don't have a specific toothed gears like a regular transmisson. The toothed gears in traditional trannys is what the gear ratio is calculated from. So there is no set ratio to gain a number from

[marlin29311]

No, i understand that there are no actual gear ratios because there are no hard gears to count teeth on....

Maybe i worded this wrong. My question is driving at this point - Does "gear" 1 in my CVT match up/act the same as 1st gear in the 6MT and so on?

[{WBK}Viper]

It don't think they match up, especially in the lower MT gears. I'm not exactly sure what to make of the manual mode of the CVT. I really like it, but they seem a bit wide in the lower gears...I might not be feeling it right,but it's definately feels like (if there were ratios in the CVT) they are different.

And noticing that the MT is around 3 for first gear and the CVT is around2.3 in auto mode I suspect that the CVT manual mode is more consistant withthe auto mode and not the 6MT.

[leif927]

http://www.nissan-global.com/E....html

[adidas2go]

nice find

[Hussain]

i dont know much about this so the larger the number the longer the gear is? if so then does that mean that with the blitz wire-by throttle controller allowing 100% throttle, that CVT would actually have a higher top end speed?

[adidas2go]

Its how direct the power transfer from the engine to the wheels are. For example, gear ratio 1 is 2.371:1. So, the engine makes 2.371 revolutions for every revolution of the transmission’s output.

Also factored is in the final gear reduction ratio. The CVT a/c's is, 5.173:1. This means that for every 5.173 revolutions of the transmission’s output, the wheels make one revolution. The differential ratio multiplies with the transmission ratio, so in 1st gear, the engine makes 12.265 revolutions for every revolution of the wheels.

In any gear ratio lower than 1:1 (such as 4-6 in the a/c) the car is in an overdrive gear. This means the output of the transmission is revolving faster than the engine. The equation from above works on these ratios as well.

V6 CVT A/C's drive ratios

gear 1 = 12.265gear 2 = 7.914gear 3 = 5.742gear 4 = 4.448gear 5 = 3.569gear 6 = 2.270

V6 6 speed A/C drive ratios

gear 1 = 13.031gear 2 = 8.059gear 3 = 5.753gear 4 = 4.360gear 5 = 3.343gear 6 = 2.603

[marlin29311]

http://www.nissan-global.com/E....html

awesome! that's exactly what i was asking!

[leif927]

Thank you Google. ^_^

[leif927]

Its how direct the power transfer from the engine to the wheels are. For example, gear ratio 1 is 2.371:1. So, the engine makes 2.371 revolutions for every revolution of the transmission’s output.

Also factored is in the final gear reduction ratio. The CVT a/c's is, 5.173:1. This means that for every 5.173 revolutions of the transmission’s output, the wheels make one revolution. The differential ratio multiplies with the transmission ratio, so in 1st gear, the engine makes 12.265 revolutions for every revolution of the wheels.

In any gear ratio lower than 1:1 (such as 4-6 in the a/c) the car is in an overdrive gear. This means the output of the transmission is revolving faster than the engine. The equation from above works on these ratios as well.

V6 CVT A/C's drive ratios

gear 1 = 12.265gear 2 = 7.914gear 3 = 5.742gear 4 = 4.448gear 5 = 3.569gear 6 = 2.270

V6 6 speed A/C drive ratios

gear 1 = 13.031gear 2 = 8.059gear 3 = 5.753gear 4 = 4.360gear 5 = 3.343gear 6 = 2.603

What do these numbers all mean?

[Hussain]

blakes explanation was very good but i'm still pretty much lost too lol looks like we need someone to like break it down to VERY simple terms lol

[rjdmmfl1]

... dude, speak nglish... i don't understand a single thing you just wrote... its like you're speaking an entirely different language... please dumb it down for us slow folks....

Its how direct the power transfer from the engine to the wheels are. For example, gear ratio 1 is 2.371:1. So, the engine makes 2.371 revolutions for every revolution of the transmission’s output.

Also factored is in the final gear reduction ratio. The CVT a/c's is, 5.173:1. This means that for every 5.173 revolutions of the transmission’s output, the wheels make one revolution. The differential ratio multiplies with the transmission ratio, so in 1st gear, the engine makes 12.265 revolutions for every revolution of the wheels.

In any gear ratio lower than 1:1 (such as 4-6 in the a/c) the car is in an overdrive gear. This means the output of the transmission is revolving faster than the engine. The equation from above works on these ratios as well.

V6 CVT A/C's drive ratios

gear 1 = 12.265gear 2 = 7.914gear 3 = 5.742gear 4 = 4.448gear 5 = 3.569gear 6 = 2.270

V6 6 speed A/C drive ratios

gear 1 = 13.031gear 2 = 8.059gear 3 = 5.753gear 4 = 4.360gear 5 = 3.343gear 6 = 2.603

[adidas2go]

Haha, there's really no easy way to explain it. The numbers I posted at the end were just how many revolutions the engine makes, for every turn of the wheel, in that gear.

GEAR RATIO x FINAL GEAR REDUCTION RATIO = how many times the engine revolves for engine revolution of the wheel

Its just random information for Hussain asking about the length of gears