Hey guys (and gals),

I am looking for a taller rear end gear to run in the Silver State Classic Challenge. I have already swapped out my stock 3.53 gear for the 3.35 gear from and automatic Z.

I am looking for at least a 3.2 or lower number to run lower rpm at higher speeds. Ideally, I would like to find perhaps a 2.9 or something in that range so that I can achieve 200mph at reasonable engine rpms. I have not been able to find anything so far lower (taller) than 3.35.

Does anyone know where I can find anything like this?

Thanks in advance!

 

Sir may I ask why would you want to go 200mph?

 

he said:

 

Oh my bad!!! Guess I should read more carefully next time. well I've never heard of anyone going lower than the 3.3.

 

I thought taller meant faster acceleration and shorter meant higher top end.

4.11 > 3.55
Tall > Short

 

nope
opposite

 

what kinda setup are you runnin anyhow? I've read about a 3.2 gear on *********.com

 

I am running the 3.35 now for the high speed events. Where did you hear about the 3.2 gear? Please PM me - the filter here covers your ???????.com website.

 

Couldn't you alter the tire size also to achieve an effectively taller gear?

 

^True, but for the OPs purpose, I think he can only go so far down in tire sizes

 

Try this link.

Its a list on all Final drives for Nissan vehicles

http://www.nicoclub.com/Greg/ratios.html

I am running 4.083s in my car and they came out of a

Nissan Frontier
2005-2007 King Cab M/T 2.5L
C200
4.083

So maybe the

Nissan Frontier
2006 A/T 4.0L 2WD
C200
2.937

Will work for you

Hope this helps
Todd

 

Now there's the kind of help I'm looking for!!!

Thanks, Todd! I will definitely check into those.

 

dude if you do this you gotta get a vid pleeaaassseeee

 

If I can get a 2.937 gear, it will definitely happen. And I already have the video mount in my car.

But I am sure that I would not have the first "street legal" 350Z to top 200mph. SOmeone must have already done it by now...???

I think I have the power to do close to 220mph, just not the gearing.

 

How much HP do you need to reach those speeds? Cause I know its not all in the gearing

 

about 450whp plus ... well at least

 

The 2002 Q45 had a weird low economy diff gear at launch 2.93?
" For 2003, a new, higher numerical final drive gear ratio of 3.133:1 is utilized for better acceleration feel."

 

Noprob,

Hope the info helps you out some. Not sure if it will work, but its worth looking into.

Later
Todd

 

Check out this webiste. Enter your data and you can compute a top speed.

Most of the 350Z specs are easy to find. If you have a dyno plot that you can copy, it is pretty accurate. A lot depends on aerodynamic drag at high speeds.


http://vlsicad.ucsd.edu/~sharma/Potpourri/perf_est.html

 

Todd,

Did the ring and pinion fit your Z pumpkin/diff with no modifications? Are you running an open diff, stock VLSD or some other LSD?