top speed and od

[mad max 98]

hey guys whats up , i have a 98 auto i maxed out my car a couple of times and i noticed that i reach 120mph easy w the od button off but when i turn it on nothing happens whats wrong w my car

[bk2kmax]

Originally posted by mad max 98
hey guys whats up , i have a 98 auto i maxed out my car a couple of times and i noticed that i reach 120mph easy w the od button off but when i turn it on nothing happens whats wrong w my car

What are you expecting to happen at that speed? The rev limiter kicks in and you can't exceed it unless you get your ECU reprogrammed to remove the stupid thing or you add some kind of piggyback ECU.

The O/D function is purely for gas economy purposes, to save gas by shifting the tranny to 4th gear, when you remove the O/D it will shift to 3rd gear for passing power. As far as I can tell from what you posted, your car is fine.

Unless you have some other expectations you didn't mention, tell us what you were expecting to happen when you pushed the O/D button at 120 mph?

[mad max 98]

well thanx for replying but my car at 120 still on third and i was expecting it to shift to forth when i push the button , i dont have a speed limiter anymore but in the same time the damn thing doesnt work

[mad max 98]

i almost forgot , i know some guys that reach 120 on third then they turn on the od and they get to 130

[bk2kmax]

Originally posted by mad max 98
i almost forgot , i know some guys that reach 120 on third then they turn on the od and they get to 130

Man you talking some stuff I've never even heard of, you mean to tell me just by releasing the O/D button their car kicked up another 10mph on the top end.
Not Dissin but that sounds a lil fishy, but I'll check with the fellaz on the .org to see what they have to say, they usually would know, they have a lot of knowledge on that forum, not that this one doesn't.

I don't think taking the O/D does that much for your car except as I stated before that it is automatically set-up on our cars to help us save gas when we are just driving normal.
You remove the O/D (economy mode) and your car rips because the tranny selects third gear where there's a lot of torque.
I could be wrong though, I'm not an auto expert but just removing the O/D in my car has never netted me 10 mph on my but then again my rev limiter is still in place.
Like I said, I'll ask the guys on the org and get back to you.

[lordrashmi]

Is 120 supposed to be our top speed? I have a 99 and I could swear I have gone faster then that.

When I first got the car, I took it to the tollway (Long, strait, concrete on both sides so there is no place for cops to hide) and punched it to see how fast it went. I got up too about 120 in 3rd and was about to hit the redline. I was kinda disapointed because my old 4 banger could do that but when I let off the gas the tranny shifted into OD and my revs dropped down too 4k which let me push it up too 130. So I think OD does make a difference.

But I am not a Maxima guru like you b2k, so I could be mistaken. I will however test this out when I get my max back from the shop.

[mad max 98]

i agree the top speed without the speed limiter is more than 120 for autos because i had to drive from cali to maryland and i maxed out the car more than once and i got to 130mph but now i can't do it any more and i feel that my car doesn't shift to 4th gear

[bk2kmax]

Originally posted by lordrashmi
Is 120 supposed to be our top speed? I have a 99 and I could swear I have gone faster then that.

When I first got the car, I took it to the tollway (Long, strait, concrete on both sides so there is no place for cops to hide) and punched it to see how fast it went. I got up too about 120 in 3rd and was about to hit the redline. I was kinda disapointed because my old 4 banger could do that but when I let off the gas the tranny shifted into OD and my revs dropped down too 4k which let me push it up too 130. So I think OD does make a difference.

But I am not a Maxima guru like you b2k, so I could be mistaken. I will however test this out when I get my max back from the shop.

I never said that I was a Maxima guru, I only thought what you said sounded fishy (this statement was made about what the car was doing, not your claim, that's why I said, no disrespect intended) also my name is bk2, not B2K<that is the lil boy singing group, haha.

Anyway, I went to the org and asked about your question and here's just one of the replies:

From ScreamingVQ:

I guess I'm the only one so far...

O/D off
3rd gear
TC locked
Hit governor at 131mph@6,5500rpms

O/D off
3rd gear
TC unlocked (Push off O/D@5,800rpms will prevent the TC from locking)
Hit 122@6,550rpms

Unless my speedo is off alot


So I guess this may help to answer your question but if not I can get the other replies and post them if you would like to read them, just trying to help, not be sarcastic or doubting your claim.

[bk2kmax]

Here's another reply to your question on the OD:

In an automatic 4th gen Maxima, you can hit 130 mph from 3rd or 4th gear, OD on is 4th gear, OD off is 3rd gear. You will hit 130 much faster in 3rd because 4th is geared soooo long in the auto. 4th gear at redline is 170 mph, to give you an idea. Of course it will never hit redline in 4th gear.

See I told you I wasn't a Maxima guru!

[TheMax95]

only some 4th gen GXE autos have a speed limiter. others do not.

[lordrashmi]

Oops, sorry about the name bk2kmax , no disrespect meant. And I refered to you as a guru cause you know alot more about the max then I do.

[mad max 98]

O/D off
3rd gear
TC locked
Hit governor at 131mph@6,5500rpms

O/D off
3rd gear
TC unlocked (Push off O/D@5,800rpms will prevent the TC from locking)
Hit 122@6,550rpms

Unless my speedo is off alot

b2k if the od off u'll never shift to 4 th gear, the car supposed to shift to 4th when u hit the button but my car doesnt do that , the tc should be locked on third unless u go slower it will downshift, thats all my car doesnt shift to forth at all i mean i dont feel anything is there anyway to find out for sure, thanx guys

[bk2kmax]

Originally posted by mad max 98
O/D off
3rd gear
TC locked
Hit governor at 131mph@6,5500rpms

O/D off
3rd gear
TC unlocked (Push off O/D@5,800rpms will prevent the TC from locking)
Hit 122@6,550rpms

Unless my speedo is off alot

b2k if the od off u'll never shift to 4 th gear, the car supposed to shift to 4th when u hit the button but my car doesnt do that , the tc should be locked on third unless u go slower it will downshift, thats all my car doesnt shift to forth at all i mean i dont feel anything is there anyway to find out for sure, thanx guys

I'm not sure if there's a way to find out, I guess I'll do a lil more research and try to get back to you on that question. And oh BTW, its' BK2, not b2k<that is the lil boy singing group.

To Lordrashmi, I got you potna but I still think you know more than me about the Max

To Max95, I didn't realize that only some 4th Gen have the rev limiter and other did not, that seems a lil odd. Did the manufacturer make them like that fresh from the factory? Also is there some kind of reason for them doing some and not all?

BTW, the post I made in reference to an automatic 4th gen came from someone over at the org, not by me, so I was only quoting, I really didn't know those things about the 4th gen, cause I have a 5th gen.

Anyway we can all do a lil research to find out some more info on all of this stuff relating to the O/D, that way we'll all be a lil bit wiser.

[maximafever]

I have a 95 GXE and have topped out at 140mph with the overdrive on. If I am not mistaken the GXE is the model that is supposed to have the limiter but for some reason mine doesn't. Can't explain why just glad that it doesn't. I have noticed that when driving with the overdrive on and I then take off while passing I can feel it kick back down to 3rd gear and the rpms go up.

[mad max 98]

i think theres something wrong with my shifter, check it out today i drove my car i started exploring when my shifter on Dthe od on or off theres no difference what so ever but here is the trick i pushed the shifter backward a little without shifting to 2nd and the car surprisingly downshifted to 3rdand when i turned on the od the car upshifted to 4th so when its naturally placed on drive the od doesnt work and when i move a little it works