switching gears before redline

[altimacoupelvr]

when i was heading to town tonight i noticed that the car shifts itself in "manual mode" right at 5500 rpm's......how come it doesn't let you get any further? i think i remember my 03 spyder eclipse shifting higher than that to avoid damage. i hardly ever have the rpm's that high since there's always stupid slow traffic here.....so since the roads were pretty much empty tonight i was "playing around"!!

[PHENOMenalVinyl]

this is why i love manual but thats weird my moms volvo s80 t 6 does it at like 7000 prm automatically and redlines 7500 but maby its just nissans way of doin things....odd bc in my car u really get alot of power from 5000 to redline

[altimacoupelvr]

well i thought it would do it at like 6-6500 rpms!!! but oh well nothing i can do about it now. i would've gotten the 6mt but i didn't wanna wait for a red one to come in cause it would've been a while. mine was the first red to arrive in this area!!!!! and i took it as soon as they got it! but my next car will be a 6mt....already plan on that. my husband was like it didn't really matter to him and i was like good cause your getting the alti when get the new one in about 2 years. if and only if i get bored with it!

[PHENOMenalVinyl]

haha tru tru yea ill def have to get sumtin new by the time im outa college but its so hard to decide theres so many choices....A/C just had all the good qualities i was lookin for mainly one being that i fit lol....n trust me thats hard to find

[racingtiger03]

My coupe does this from 1st to 2nd, but the rest of the gears it shifts at 6k.. I have yet to figure out why on that either, If I just floor it in D then itll hammer on just under 6k and stay there *shrug*

[altimacoupelvr]

YEAH! i noticed that too....that it was the 1st gear only....that makes me feel better knowing that it's not just mine!

[adidas2go]

Haha, your eclipse had a 4 speed auto. Different with it being real gears over a "fake" gear feeling derived from the CVT's band shifting to different points on its cones. Its all in the a/c's transmission computer about where it shifts. Sure its developed for the best.

[altimacoupelvr]

AND????? all i'm saying is that it shouldn't choose to shift that quickly!!! but whatever guess i can't do nothing bout it!

[adidas2go]

only saying, its a completely different type of transmission. Its going to act completely different in almost every aspect

[altimacoupelvr]

i gotcha!!!

[GryStrm]

pussycat...its a 2.5 4silly....any more revs..itll be siiting in the passenger seat next to you!...

actully..arent 4 cyl redlines HIGHER than 6 or 8 cyl??....

[{WBK}Viper]

My 3.5 shifts between 6000 and 6500 in manual mode. I knowit's not a 2.5 and probably doesn't help you much, but I go all the way to redline if I'm flooring it.

[altimacoupelvr]

yeah i tried to go to redline and it just wont let me in 1st!!!! and yes i know its a 4 but hey just thought it would do a lil more!

[adidas2go]

The engine can do more, but the cvt cannot. It can only spin so fast without failing or overheating!

pussycat...its a 2.5 4silly....any more revs..itll be siiting in the passenger seat next to you!...

actully..arent 4 cyl redlines HIGHER than 6 or 8 cyl??....

Not necessarily, It depends on how long the stroke is. The Ferrari Enzo's V12 redlines at 8200 rpm, while the 4 cylinder of the Altima Coupe redlines at 6000 rpm. Torque numbers are comparatively higher in cars with lower redlines, because of the longer stroke pattern. Think of it like a pogo stick. The more effort you give going down, the more power that is created to launch you up, however, the method is slower than a short, quick, bounce.

As you can see:

A/C 2.5, 175 hp 180 tqEnzo, 651 hp 485 tq

Hope this helps

[mcheddadi]

mazda rx8 and honda s2000 redlines at 9000RPMS!

[maxentropy]

My coupe does this from 1st to 2nd, but the rest of the gears it shifts at 6k.. I have yet to figure out why on that either, If I just floor it in D then itll hammer on just under 6k and stay there *shrug*

Aye, it's different at different gears. The computer shifts "for you" so you don't hurt your baby.

However, I also believe it depends on the situation-- there have been times I've gotten 1st gear to red line. From memory, I believe I was in second and downshifted to 1st, and then accelerated again. It may restrict only from a dead stop. Again, my memory isn't very good.