**** 4.083 Gears/Final Drive Installed****
12-23-2007, 01:32 PM
#283
Z + Rear Seat
iTrader: (3)
Join Date: Jun 2005
Location: St.Pete,FL
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by ObZeZZed
How about diff lube? Do I need to use OEM or should I use somthing else?
OEM gear oil should be fine for the new gears with the VLSD.
12-23-2007, 01:44 PM
#284
Z + Rear Seat
iTrader: (3)
Join Date: Jun 2005
Location: St.Pete,FL
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by c3 rolling
I read this whole thread but couldnt find the answer, which FD would be best for a N/A 5AT with stock 3.3 gears?
If you're hard core into modding... and you're sure you won't want to go FI in the future, it might be worthwhile to switch FD gears to a 3.70. That would be my call.
12-23-2007, 02:37 PM
#285
Registered User
iTrader: (19)
Join Date: Oct 2007
Location: So Cal / Valencia
Posts: 1,315
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by __jb
That's hard for any of us to say. What other mods do you have? I'd say that changing the final drive ratio would not be a good first mod... I probably wouldn't put a 3.91 or 4.08 into an 5AT... just my opinion.
If you're hard core into modding... and you're sure you won't want to go FI in the future, it might be worthwhile to switch FD gears to a 3.70. That would be my call.
If you're hard core into modding... and you're sure you won't want to go FI in the future, it might be worthwhile to switch FD gears to a 3.70. That would be my call.
Motordyne 5/16 Isothermal spacer
JWT Pop Charger
Stillen True Dual Exhaust
Berk Technology High Flow Cats
Berk Technology Intake Pipe
Unorthodox Underdrive Crank Pulley
Gonna get the reflash, not planning FI anytime SOON
12-23-2007, 02:48 PM
#286
Z + Rear Seat
iTrader: (3)
Join Date: Jun 2005
Location: St.Pete,FL
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by c3 rolling
performance wise....
Motordyne 5/16 Isothermal spacer
JWT Pop Charger
Stillen True Dual Exhaust
Berk Technology High Flow Cats
Berk Technology Intake Pipe
Unorthodox Underdrive Crank Pulley
Gonna get the reflash, not planning FI anytime SOON
Motordyne 5/16 Isothermal spacer
JWT Pop Charger
Stillen True Dual Exhaust
Berk Technology High Flow Cats
Berk Technology Intake Pipe
Unorthodox Underdrive Crank Pulley
Gonna get the reflash, not planning FI anytime SOON
I'd probably put headers on first, get it tuned, then maybe a 3.70.
12-28-2007, 06:44 AM
#289
Registered User
iTrader: (2)
Join Date: Jul 2006
Location: Knoxville, Tennessee
Posts: 1,471
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by c3 rolling
hmmm, okay. Will I need anything other than the 3.7 FD and new bearings for the pinion ? thanks alot for the input btw 
12-28-2007, 09:16 AM
#290
Former Sponsor
iTrader: (564)
Join Date: Feb 2003
Location: Long Island, New York
Posts: 19,266
Likes: 0
Received 5 Likes
on
5 Posts
Originally Posted by jammin
I see a lot of people getting the new final drives with upgraded LSDs. Is it okay to get 3.9 or 4.083 gears and install it with the stock VLSD?
we've got more 4.083 kits in as of today
12-28-2007, 08:49 PM
#292
Registered User
iTrader: (28)
Join Date: Oct 2006
Location: ROFL
Posts: 3,258
Likes: 0
Received 0 Likes
on
0 Posts
Man I would love to purchase it too! But I have enough for the kit only and not install =(. Oh well, I'll def purchase the gears from you by summer time though!
Originally Posted by Z1 Performance
yes works fine
we've got more 4.083 kits in as of today
we've got more 4.083 kits in as of today
12-30-2007, 11:47 AM
#293
Registered User
Join Date: Nov 2007
Location: KCMO
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Is it safe to assume that the 4.083 gear could be swapped into an '08 G35 6MT the same as the '07+ 350z?
With the extra weight of the G35, I'd love to have some shorter gears to get me moving faster.
With the extra weight of the G35, I'd love to have some shorter gears to get me moving faster.
12-30-2007, 09:34 PM
#294
Z + Rear Seat
iTrader: (3)
Join Date: Jun 2005
Location: St.Pete,FL
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by KCMO_HR_G
Is it safe to assume that the 4.083 gear could be swapped into an '08 G35 6MT the same as the '07+ 350z?
With the extra weight of the G35, I'd love to have some shorter gears to get me moving faster.
With the extra weight of the G35, I'd love to have some shorter gears to get me moving faster.
The 4.08 gears are a nice addition to a G35 though!
12-30-2007, 11:25 PM
#296
Registered User
Join Date: Nov 2007
Location: KCMO
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Has anyone ever had an issue w/ the 4.083 gears messing up their cruise control?
I heard a rumor that some people have had this issue and just wanted to see if it was true or not.
I heard a rumor that some people have had this issue and just wanted to see if it was true or not.
12-31-2007, 05:33 AM
#297
Former Sponsor
iTrader: (564)
Join Date: Feb 2003
Location: Long Island, New York
Posts: 19,266
Likes: 0
Received 5 Likes
on
5 Posts
I would assume the cruise no longer works on the auto G's. This is at least how it was when installing the 3.9's on auto G's and I'd imagine its the same result when doing the 4.08
As for the rpm's, you can find that data on page 1 of this thread
As for the rpm's, you can find that data on page 1 of this thread
Last edited by Z1 Performance; 01-01-2008 at 07:52 AM.
12-31-2007, 09:34 AM
#298
Registered User
Join Date: Nov 2007
Location: KCMO
Posts: 56
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Z1 Performance
I would assume the cruise no longer works on the G's - it does work on Z's though. This is at least how it was when installing the 3.9's on G's and I'd imagine its the same result when doing the 4.08
As for the rpm's, you can find that data on page 1 of this thread
As for the rpm's, you can find that data on page 1 of this thread
that's unfortunate. Is there any reason that anyone knows of why the cruise control continues to work in the 350z but doesn't in the G35?
12-31-2007, 09:51 AM
#299
Registered User
iTrader: (34)
Join Date: Mar 2007
Location: oklahoma city
Posts: 7,908
Likes: 0
Received 0 Likes
on
0 Posts
im talking more into the aspect of everyday driving. I looked at WOT shifts and rpms etc. just curious like what the rpms are at cruising on the highway at say 70 or 75. and or gas mileage.
12-31-2007, 09:58 AM
#300
Z + Rear Seat
iTrader: (3)
Join Date: Jun 2005
Location: St.Pete,FL
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 2006350zSA
whats the gas mileage look like on the highway with the 4.08? Also say at 75 whats rpm's look like on a 6 speed that is. thanks
The RPMs went up about 400 revs. 3400 RPM is 80 miles per hour. Cruising on the highway at 70-80 miles per hour is not an issue. I recently drove over to Orlando and back... not a problem.