how can the shift points in an auto. be raised ???
 

I will have a shop do it. Just want to know something when I approach the tech. I know I can shift higher after raising my red line, but prefer to leave it in drive, at least have that option.

Thanks

huh?

Floor it and it will run up to the redline. It's a pretty good automatic.

Don't change the redline.

maybe my question isn't clear
 

huh?

the answer to your post is, yes I know, & yes I know that too. As far as your 3rd. sentence, it's my car & I want to :p

Now I will be raising the redline & I also want to raise my trans. shifting points when it's under full power. I'll manage going to my shop without knowing how it's done.

thanks anyway....

did you just asked why????
 

:icon17:

Because I want to put test pipes on & get a tune. I KNOW that that will make the engine produce top H/P. at apx. 7,500 rpm.

If I get my trans. shifting at 7,700 rpm with a 7,800 rpm redline, plus the test pipes & tune, I'll be able to drive to the drag strip, & with my stock base wheels/tires and stock intake & exhaust, I'll be able to do 12.7's/12.8's @ 110 mph.

Enjoy one of my hobbies without working hard. Maybe do some bracket racing, that's why I don't want to shift.

my attitude is not serious :)

Unless u have cams, the gains versus the damage that might be done isn't really worth it.

But to raise the Rev limiter you'll need Osiris tuning.

I'm sorry I brought it up-NEVER AGAIN..
 

When & where did I ask how to raise the Rev limiter????

What damage? Shifter 200 rpm higher??? wtf ?

Do you know that STOCK the car shifts at almost 7,500 rpm when under full power??? That means having you floor the gas pedal..

What the fùck are you talking about then.

Please REREAD your posts and tell us what YOU mean.


Do you mean that you want to raise the shift point so the car doesn't always choose the tallest gear?

small gains?
 

This is what I need to do 12.7's/12.8's with STOCK INTAKES, EXHAUST.

When & where in this thread did you say drag racing times?

And why limit your mods when you're going to run slicks anyways? Why not just go balls to the wall

NO! so it shifts at higher rpm/shifts a bit later. :confused:

So... You want to raise the rev limiter...
If you raise the rev limiter it shifts later... That's just the way it works... There isn't an EXTRA step

Post 4
 

............... I don't want to use slicks. Drive to track, race, drive back home.

Your previous posts imply you use slicks. 12.7-12.8... So top 5 times recorded... And you're NOT going to mod it to hell...

That's a challenge, I'd like to see it done though. Good luck

rev limiter
 

Isn't that the red line/cut off point??? I had a stick & I raised the rev limiter/red line & shifter at whatever rpm I wanted SO I either don't understand what rev limiter means or both of you guys are telling me that razing it also raises the shifting points. Is that right?????

Yes, both. You're not understanding, and yes, raising the rev limiter ups the shift points.
What else would it do? It's an auto, it shifts at the redline or damn close to it. You move the redline, it shifts at that red line.

I posted my going to the track Friday
 

I did a 13.1 on my first run. Left line at only 1,500 rpm. Can't get 3/10's with test pipes & an Osiris tune????

Got it
 

That makes it real simple :) If it's a fact.....

Just going off this list
http://www.the370z.com/track-autocro...ack-times.html
you have a ways to go.

But hey, maybe you ARE the best drag racer on the 370Z

I'm not interested in going for the record
 

You probably didn't see my post about me putting in my old 350z pumpkin w LSD & 3:90 gears. That was done on thurs, Friday I went racing:) The car pulled like a M Fvcker. One run was at almost 108 mph.

Shifted into 5th gear before the finish line, so another benefit of raising shifting point would be NOT getting into 5th gear. Another e/t gain :)

Thanks for the info
 

I hope you're right :)

Seen those posts like 100 times.
Changing the gearing will obviously be best bang for the buck for drag racing. Maybe equal with running slicks. So I cannot compare those times taking into account the other times. It's just not apples to apples

what times are you talking about???
 

I was looking at the bolt on times. Except for the top two, there's no reason, NO CHANCE I can't do the times of the others.

This is why I stopped helping n00bs... it's contagious.

I looked over all the time lists. Couldn't find your name :confused:

Rev limit can be raised with Uprev. You can then manually shift via paddles or stick up to that RPM without fuel cut or automatic upshift. I'm not 100% certain that raising the rev limit also raises the shift points at WOT... you really shouldn't raise it higher than 7800; I believe OEM is 7500.

If you mean changing the shift schedule in "D", unfortunately, I don't think there's a way with Uprev -- possibly ECUtek can do it.

However, you CAN raise the line pressure with Uprev, meaning faster and firmer shifts.

I appreciate all help given & my snide remarks are NOT for real
 

Thanks^^^^^If that's true, I'll ask my tuner to do that.
I admit not knowing much about today's cars & how they work. It's my age :) I don't even want to change my own oil. I do know a bit about drag racing & having mods work together, as apposed to just "the more the better".

Before the recent drag racing of my Z's, I drag raced a bit a long, long time ago with a 1966 Pontiac G.T.O. Long, long ago:) That's when I learned how to shift & about balance/working together when it comes to mods.

More recently with my 08 Z. I didn't just buy slicks for that car & do well, it took me 8 months to learn how to really use them :)

So, I'm a nice guy but tend to post "snappy" responses. Probably due to my age(little patience) & trying to have some fun. Nice, nice all the time is BORING ;)

I can appreciate that response.

Good luck OP.

Raising the shift points is probably possible by tweaking the TCM. It would appear that no one responding to this thread knows much about tweaking TCMs (the hi-po guys usually go with a manual). I suggest finding some hi-po auto transmission shops/sites and asking there. Let us know what you find out.

Maybe a call to GTM, since they build upgraded autos?

Your posts hurt my head, op.

:tiphat:

I'd look into pricing on an uprev tune, especially if you eventually do things like intake or exhaust.

Even without that, a tune should net a little more power and torque -- but more importantly you can:

1. Vastly improve throttle response (notoriously boggy on this car due to laggy fly-by-wire system)

2. Speed and firm up shifts -- no need for any change to the trans valve body; a tune can do it on this car.

3. Raise rev limit -- again, I'm not sure it will change the automatic shift points in D when you go WOT, but it will allow you to manually shift a bit higher with the paddles or stick when the trans is in M mode.

4. Turn the radiator fan on full blast sooner to keep the engine running a little cooler under load, which will also result in the ECU allowing more ignition advance and better responsiveness.

These four changes to the tune with Uprev will greatly improve overall driveability and responsiveness even without any bolt-ons.

Have fun! :tup:

First I want to thank you for your suggestion-WARNING to people that heard my B.S
 

I sincerely thank you but you should go on the 350z.com site & go to the DRAG section's top 25 list. They have a very big/nice section of that subject. Go to the bolt on 07/08 HR section. After you do that you'll understand why I asked you to do it.

I also won the bolt on class in the 1st. Atco Nissan meet in 2012. 350's 370's & infinities. It was the largest class. Now I respected ALL the racers & admired how hard they tried & professional they were, as well as very nice, but the truth was that most of the time I was just playing & having fun.

I also did well at the Island Niss. meet & got trophies for competing in bracket racing. So I do know most things that have to do with drag racing.

You were very nice to try & help me, but I was only interested in the question that I posted. I'm new to automatic transmissions. I do know what the letters D & R stand for :icon17: Don't be mad & thank you again.

My car had stock intakes & stock exhaust except for test pipes. It was seen by several car shops & was always open at the track so people could see everything or anything.