**** 4.083 Gears/Final Drive Installed**** - Page 6 - MY350Z.COM Forums



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Old 09-21-2007, 09:12 AM   #101
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Quote:
Originally Posted by aceman
Thanks!!

If you guys dont see any results posted.... Welllll.... that means....

My pride is hurt


I should do better, we will see. Weather looks great.

Todd
"Sometimes you have to go a little bit slower before you can go faster!"

Don't feel bad if things don't go perfectly the first time you test out your new gears. Maybe the increased leverage your new gears provide will cause your car to overpower the slicks or something... who knows...

Have fun and stay safe!
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Old 09-21-2007, 11:20 PM   #102
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BTW, awesome thread guys. It's been a while since I have seen such an informative thread.

I have been dying to get shorter gears in my 07. My old 97 M3 _seems_ faster, but it's not really. But it does rev through the gears faster. 2nd gear gets you to 62MPH in the M3. That shorter gearing is really fun.

The 07 gearing just seems WAY too tall. Still wondering why nissan did this... Was it so that traction loss wasn't such an issue? Fuel economy? I dunno.

Waiting to hear results. I appreciate the subjective feedback on the mod.
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Old 09-22-2007, 12:23 AM   #103
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does anyone know where i can buy the nismo lsd with these gears? my nismo is only showing 3.5,3.7, and 3.9.
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Old 09-22-2007, 07:29 AM   #104
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wait so this can be installed just fine in an 03 touring with the whatever comes stock lsd?
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Old 09-22-2007, 04:55 PM   #105
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Thumbs up Here are the results guys

Had a fun time at the track and was able to improve my time. I will have to upgrade to a 27inch slick. I was hitting my 7200 rpm limiter right at the end of the 1/4.

https://my350z.com/forum/drag/303210-new-times-after-4-083-gear-install.html

I do think there is alot left in this setup. Everyone at the track was running slower than they normally run. I need to check out a faster track and see what i can do.

later
Todd
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Old 09-22-2007, 10:05 PM   #106
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where did you buy yours?
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Old 09-23-2007, 07:51 AM   #107
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Quote:
Originally Posted by iamgus_gus
where did you buy yours?
I bought mine from a local friend ( Gooey ). He helped me out of a bad situation. And i do appriciate it. Im not totally sure where he bought them.

Todd
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Old 09-23-2007, 08:00 AM   #108
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Todd you def left hard off the line with those gears and your 1/4 times on a prepped track will be much better i think.I could not get any traction friday night so i had to ***** foot it off the line.I like your setup..........sweet.
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Old 09-23-2007, 08:04 AM   #109
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Quote:
Originally Posted by superchargedg
Todd you def left hard off the line with those gears and your 1/4 times on a prepped track will be much better i think.I could not get any traction friday night so i had to ***** foot it off the line.I like your setup..........sweet.
Thanks Keith.... Im looking forward to more time on a different track. As it is now, i have only raced at Mason Dixon. I have never been to any other track to run.

Oh, and thanks for the buisness. Let me know how things go.

Also, cant wait to see you in action at the next after party

later
Todd
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Old 09-25-2007, 05:28 AM   #110
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those improved times are awsome congrats! i like the 60'.
whats next up in your mods list? cams?
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Old 09-25-2007, 05:42 AM   #111
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Quote:
Originally Posted by nicholasm617
those improved times are awsome congrats! i like the 60'.
whats next up in your mods list? cams?
Yep, Going to try some Cams... Still researching as to which ones i want to use.. Also, i have a pair of heads at home that will be ported at the same time.... Then depending on how it performs.. I will be buying the Cosworth Manifold.

I am enjoying my car more and more... And this December I will have owned it for 5 years, but it will be paid for then.

Todd
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Old 09-25-2007, 06:37 AM   #112
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that sounds great, building it up little by little seems to be your method.
next step after cams with PnP should be individual throttle bodies peeking out of your hood hahaha
my qeustion though is just did you knotice any gains either on a dyno or just in feeling with the bored throttle body and larger maf? or did you combine those with other mods at once so you arent sure?
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Old 09-25-2007, 05:27 PM   #113
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Quote:
Originally Posted by nicholasm617
that sounds great, building it up little by little seems to be your method.
next step after cams with PnP should be individual throttle bodies peeking out of your hood hahaha
my qeustion though is just did you knotice any gains either on a dyno or just in feeling with the bored throttle body and larger maf? or did you combine those with other mods at once so you arent sure?
I have not checked to see if there were any gains with the larger MAF. Still need to get to a dyno and do a before and after ( I have the stock pieces ) But the throttle body did not do too much. Maybe with the larger MAF housing there are some gains.

Check this link.

https://my350z.com/forum/intake-exhaust/208880-kinetix-plenum-shoot-out-stock-car-plus-more.html

Later
Todd
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Old 09-25-2007, 06:30 PM   #114
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According to your calculated results based on 255/45/17, my tire setup at 285/35/18 would land me at ~102 Mph with the 3.917 FD with 6600 redline. I'd probably be shifting into fifth to avoid hitting the rev limiter in the 1/4.

Also...
I'm surprised you felt such a difference between the 3.917 and the 4.08x to say it is the best mod you have done. I skimmed through the thread so I may have missed something.
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Old 09-25-2007, 06:59 PM   #115
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Quote:
Originally Posted by pss350z
According to your calculated results based on 255/45/17, my tire setup at 285/35/18 would land me at ~102 Mph with the 3.917 FD with 6600 redline. I'd probably be shifting into fifth to avoid hitting the rev limiter in the 1/4.

Also...
I'm surprised you felt such a difference between the 3.917 and the 4.08x to say it is the best mod you have done. I skimmed through the thread so I may have missed something.
He didn't have a 3.917. It's about a 4% difference between the 3.917 and the 4.083.
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Old 09-26-2007, 05:48 AM   #116
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Quote:
Originally Posted by VitViper
He didn't have a 3.917. It's about a 4% difference between the 3.917 and the 4.083.
Woops, for some reason I thought he had the 3.917s and switched over to 4.083. My bad.
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Old 09-27-2007, 05:46 AM   #117
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Quote:
Originally Posted by pss350z
Woops, for some reason I thought he had the 3.917s and switched over to 4.083. My bad.
Nope, no 3.9's

The 3.9's would be perfect matched with a 26inch slick and the 7200rpm redline. With the 4.08's i find that i need a 27inch slick. Which i will be installing on the car before i go back to the track.

Todd
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Old 09-27-2007, 06:12 AM   #118
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congrats on the car running.

you need to come up to ATCO. if MRC does the drag day that will be prime. great track... fast as well.
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Old 09-27-2007, 06:22 AM   #119
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Quote:
Originally Posted by Motormouth
congrats on the car running.

you need to come up to ATCO. if MRC does the drag day that will be prime. great track... fast as well.
I would like to try the track out.. How many feet above sea lvl is ATCO? I looked on their website, but i could not find the info.

Thanks
Todd
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Old 09-27-2007, 07:27 AM   #120
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How are the 4.08 gears for driving on the street?

I have a 2005 G with the revup engine and the limiter bumped to 7200. I'm trying to decide between the 3.917 and 4.08 gears. I have 285/35x19's in the rear, so I'm thinking maybe the 4.08's... just wondering if that would be too low for street driving. It sounds fun to me.
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