2004 SL with no gate shifter.

I have always thought this to be the auto 4, however car and driver says:

"In case it doesn't, the six-speed in our 3.5SE test car can be swapped for a four-speed Jatco automatic with a manual shift mode at the same trim level, or even for a five-speed Aisin automatic in the more-luxury-oriented 3.5SL model. These largely negate issues with torque steer and throttle response."

Does this mean I have the 5 speed Auto in the SL? Did they make both for both trims?

How the hell do you find this out?

And if it is the auto 4, how much slower does it compare? Is the speed negligible? It sure feels fast to me...(I had given up a Cavalier for it though... )

Joshua

 

You have a 4AT. Yes, you're not as quick as the 5AT when speed goes above 60 or 70MPH, but you may have better MPG since you actually have an OD gear. The earlier built '04 came w/ 4AT. I'm not sure when in '04, but Nissan dropped the 4AT and put the 5AT in both SE and SL.

 

Explain how the MPG would be better in the 4AT vs 5AT

 

Less shifting, so more consistent RPM...?

 

IMO, that would be nil (small % difference).

Truth is, yes the 4AT has an OD, vs the 5AT, which does not. Speaking by definition an OD is an gear ratio less than 1.000. In the case of the A34, OD or no, the gear ratios are what ultimately determine highway mileage.

The 4AT in the A34 will be revving a little higher vs the 5AT due to its gear ratios.

The FD for the 4AT is 3.7899, and the 5AT is 2.44.



Here's a thread w/ a few links in it. (4AT vs 5AT)

http://forums.maxima.org/showthread.php?t=402818

 

You listed 5AT at 2420 @ 75; it's not that low, more like 2750-ish @ 75, and 3000@ 80, stock tires @ 34psi cold. I wish it's 2420 @ 75, then it would be below 3k @ 100; then we won't need a 6th gear.

 

I thought 5spds only had FIVE GEARS

And yes, I agree with RHMAX, when I am at 80mph, then I am roughly around 3,000 RPM

 

I'm saying we don't need a 6th if 100 was at or below 3k RPM. As it stands now, a 6th gear will give us better MPG.

 

Maybe the 7th Gen will have a 6 speed auto, and was the 04 SL the only year the 4speed was around

 

That's because it was on rough theoretical calculations on unloaded stock tires.

 

It was more of a joke, but ok...

 

That's what happends to smarta$$ answers...

 

Have to take a note of that-joking=smartass

 

OT. but i figure I would ask you.

I have the 6sp Manual. When my motor is going to come out, I will be putting in a new clutch, flywheel, LSD and.......this is where I ask for your expertise.

The 6th gear I only use on the highway..... is there a way to change its ratio to lower my 6th gear highway cruising rpms to lets say 2200-2500 at 80mph?

Thanks for your help, I figure mind as well ask around here before I get pooched by whatever shop does the install for me.

I wish there was a thread about what parts the 6th Gen needs for a new clutch, flywheel, LSD, gear ratios etc..


Kamski

 

I think sr20den was talking about changing 6MT ratio a while back, he might be able to help you.

 

http://forums.maxima.org/showthread.php?t=497655

 

is the 4 speed whats in the auto 5.5 and 5th (and possibly 4th) gens?

 

Sentence structure would help.

But, if you're asking if the 4AT is the same, then yes, it is. Mechanically the FD changed in 2000. The code also changed in 04 IIRC. FSM.

So, what exactly are you asking, and why?

 

we can only hope for a 6 speed auto. do you guys think there will be a large price hike if we see this ?

 

And the speed difference between the 4sp Auto and the Five Speed Auto?

Joshua

 

http://forums.maxima.org/showthread.php?t=402818

 

When I bought my SE back in September of '03, I remember reading the window sticket of an SL with a 4 speed. As I recall, both in-town mileage estimates were 20 MPG but the SE with the 5AT was estimated at 28 MPG on the highway at the SL with the 4AT was at 27 MPG on the highway.

So, if these estimates are correct, the 5AT gives slightly better MPG.