Engine, Drivetrain & Forced-Induction
Have Technical Questions or Done Modifications to the G37? Find out the answer in here!

Help 4.08 Gears

Thread Tools
 
Search this Thread
 
Old 12-13-2009, 08:30 PM
  #91  
DanMardik
Registered User
iTrader: (7)
 
DanMardik's Avatar
 
Join Date: Jul 2008
Location: Irvine, CA
Posts: 673
Likes: 0
Received 1 Like on 1 Post
This is probably one of the most exciting mods so far for me yet.. no progress
Old 12-13-2009, 08:42 PM
  #92  
G37Sam
Administrator
 
G37Sam's Avatar
 
Join Date: Aug 2008
Location: Doha, Qatar
Posts: 12,184
Received 243 Likes on 193 Posts
Updates NBS? I know you were here yesterday (Dubai Time lol)

General Information
Last Activity: Yesterday 11:43 PM
Too much suspense going on
Old 12-13-2009, 08:49 PM
  #93  
Kidcane
Florida G Club
iTrader: (7)
 
Kidcane's Avatar
 
Join Date: Dec 2005
Location: Tampa
Posts: 8,105
Likes: 0
Received 9 Likes on 9 Posts
Sam = Cyber Syalker
Old 12-13-2009, 09:50 PM
  #94  
Blackjack
Super Moderator
iTrader: (3)
 
Blackjack's Avatar
 
Join Date: Jan 2005
Location: The ATL
Posts: 9,923
Likes: 0
Received 8 Likes on 6 Posts
NBS needs to post up... Anxiously awaiting the results.
Old 01-21-2010, 12:58 PM
  #95  
StopTheExcuses
Registered User
iTrader: (1)
 
StopTheExcuses's Avatar
 
Join Date: Apr 2009
Location: North Carolina
Posts: 333
Likes: 0
Received 2 Likes on 2 Posts
Any updates OP?? I'm seriously thinking about doing this mod in my G. I changed the rearend gear in my S13, and picked up noticeable torque and about 2 tenths in the quarter mile. Cmon Op, lets hear it!
Old 01-21-2010, 01:36 PM
  #96  
DanMardik
Registered User
iTrader: (7)
 
DanMardik's Avatar
 
Join Date: Jul 2008
Location: Irvine, CA
Posts: 673
Likes: 0
Received 1 Like on 1 Post
Honestly, doesn't look like any progress on this.. Blame it on the economy?
Old 01-21-2010, 02:09 PM
  #97  
Staples
Registered User
iTrader: (9)
 
Staples's Avatar
 
Join Date: Jun 2008
Location: Bel Air, MD
Posts: 1,659
Received 5 Likes on 5 Posts
Oh god, 4.08 gears? That's like 4,000 rpms in 6th going 65mph! I couldn't do it, i just couldn't!

I do know for a fact it'll cut down on 0-60mph and 1/4 mile times drastically. BMW seems to put crazy gear ratios in their transmissions from the factory.
Old 01-21-2010, 02:10 PM
  #98  
DanMardik
Registered User
iTrader: (7)
 
DanMardik's Avatar
 
Join Date: Jul 2008
Location: Irvine, CA
Posts: 673
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Staples
Oh god, 4.08 gears? That's like 4,000 rpms in 6th going 65mph! I couldn't do it, i just couldn't!
I highly doubt it.
Old 01-21-2010, 02:41 PM
  #99  
Ivoidwarranties
Premier Member

iTrader: (7)
 
Ivoidwarranties's Avatar
 
Join Date: Nov 2008
Location: Omaha
Posts: 2,078
Received 28 Likes on 14 Posts
Send me the gears and I'll have them installed in a few days.
Old 01-21-2010, 02:43 PM
  #100  
supracrazy
Registered User
 
supracrazy's Avatar
 
Join Date: Dec 2005
Posts: 65
Received 0 Likes on 0 Posts
Originally Posted by Staples
Oh god, 4.08 gears? That's like 4,000 rpms in 6th going 65mph! I couldn't do it, i just couldn't!
Really.... And where did you come up with that figure?
Old 01-21-2010, 03:11 PM
  #101  
NeverBoneStock
Premier Member

Thread Starter
iTrader: (25)
 
NeverBoneStock's Avatar
 
Join Date: May 2008
Location: Vancouver, WA
Posts: 3,179
Received 69 Likes on 56 Posts
Sorry guys I will be installing these when I make up my mind between the stillen or gtm sc.so the wait continues.
Old 01-21-2010, 04:09 PM
  #102  
Ivoidwarranties
Premier Member

iTrader: (7)
 
Ivoidwarranties's Avatar
 
Join Date: Nov 2008
Location: Omaha
Posts: 2,078
Received 28 Likes on 14 Posts
I wouldn't do forced induction and gears. The whole reason to do gears is to get the car up in the power range sooner. With a supercharger there should be more power available sooner. Unless the supercharger is absolutely worthless below 4000-4500 rpm, gears will just be taking away your available rpm (power band).

Gears sound like a great idea to me with a n/a high reving engine. F/I... I guess there are too many unknowns right now.
Old 01-21-2010, 04:48 PM
  #103  
oro
Registered User
 
oro's Avatar
 
Join Date: Nov 2007
Location: Gilbert, Arizona
Posts: 192
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Ivoidwarranties
I wouldn't do forced induction and gears. The whole reason to do gears is to get the car up in the power range sooner. With a supercharger there should be more power available sooner. Unless the supercharger is absolutely worthless below 4000-4500 rpm, gears will just be taking away your available rpm (power band).

Gears sound like a great idea to me with a n/a high reving engine. F/I... I guess there are too many unknowns right now.
Gears and superchargers are a bit more common as most of the guys in the 350/G35's had a 3.93 gear with Vortech combo. All it really does is get you up into the meat of the superchargers powerband quicker.

Now gears on a turbocharged application, wouldn't touch that spinfest.
Old 01-21-2010, 04:58 PM
  #104  
Ivoidwarranties
Premier Member

iTrader: (7)
 
Ivoidwarranties's Avatar
 
Join Date: Nov 2008
Location: Omaha
Posts: 2,078
Received 28 Likes on 14 Posts
True but no one has done a sc on this plateform yet so we don't really know where the powerband is. And 4.08's are another step up from 3.93's.
Old 01-21-2010, 05:14 PM
  #105  
oro
Registered User
 
oro's Avatar
 
Join Date: Nov 2007
Location: Gilbert, Arizona
Posts: 192
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Ivoidwarranties
True but no one has done a sc on this plateform yet so we don't really know where the powerband is. And 4.08's are another step up from 3.93's.
Very true as well. But the 3.93 gears were a huge jump over the 3.55's in DE Z and G. About the same difference as the 3.7 gears are to the 4.08's on our cars.

As well the Z and the G's power band was very tight due as well to their max revs running up to around 6800rpm where we have much more to wind it out.

I guess it all is really going to depend on the Trim of Vortech they decide to go with as well to really know where it's going to go.

Still this mod by itself would be huge for N/A and if it is later found that this mod isn't so great with the supercharger, I'm sure it will be easy to sell the pumpkin off for money+another pumpkin.


Quick Reply: Help 4.08 Gears



All times are GMT -4. The time now is 01:23 PM.