Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Search the maintenance guides for answers to 99.999% of Omega questions

Pages: 1 [2]  All   Go Down

Author Topic: Diff keep or change?  (Read 1790 times)

0 Members and 4 Guests are viewing this topic.

Mr Skrunts

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Skruntie Land.
  • Posts: 25642
  • 3.O Elite Saloon with all the toys,
    • 2003 CD 2.2 Auto
    • View Profile
Re: Diff keep or change?
« Reply #15 on: 26 October 2009, 13:03:49 »

Quote
Can someone with access to TIS post up the V6 diff ratios please?

Tunnie, you have it the wron way around; a 2.5 manual fitted with a 2.5 auto diff goes like a rocket because the auto diff is lower geared (4.22:1 compared with 3.9:1 for the manual). Fuel consumption is higher though.

I cant remember the 3.0 ratios, I think the manual is 3.7 but dont know the auto.


I think they are listed on the Eligable cars list, the leaflet scans on ABS
Logged
Ask yourself :  " WHY do I believe in what I believe?"

Remember that my opinions expressed here are not representative of the opinions of other members on the OOF Forum.

Mr Skrunts

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Skruntie Land.
  • Posts: 25642
  • 3.O Elite Saloon with all the toys,
    • 2003 CD 2.2 Auto
    • View Profile
Re: Diff keep or change?
« Reply #16 on: 26 October 2009, 13:05:38 »

yes they are, under technical specs.  :y
Logged
Ask yourself :  " WHY do I believe in what I believe?"

Remember that my opinions expressed here are not representative of the opinions of other members on the OOF Forum.

Mr Skrunts

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Skruntie Land.
  • Posts: 25642
  • 3.O Elite Saloon with all the toys,
    • 2003 CD 2.2 Auto
    • View Profile
Re: Diff keep or change?
« Reply #17 on: 26 October 2009, 13:15:15 »

 

TYPE
      CLUTCH

DIAMETER
      GEAR RATIOS       FINAL DRIVE RATIOS

 
                                              1          2                  3                    4                    5               Rev.
Manual (2.5i)       228 mm       3.95:1       2.19:1       1.39:1       1.00:1       0.85:1       3.53:1       3.90:1
Automatic (2.5i)       -       2.40:1       1.48:1       1.00:1       0.72:1       -       2.00:1       4.22:1
Manual (2.5TD)       240 mm       3.81:1       2.11:1       1.34:1       1.00:1       0.76:1      3.40:1       3.45:1
Automatic (2.5TD)       -       2.40:1       1.48:1       1.00:1       0.72:1       -       2.00:1       3.45:1





TYPE
      CLUTCH

DIAMETER
      GEAR RATIOS       FINAL DRIVE RATIOS

 
                                      1           2                    3                     4           5                    Rev.
Manual       240 mm       3.81:1       2.11:1       1.34:1       1.00:1       0.81:1       3.40:1      3.70:1
Automatic       -       2.40:1       1.48:1       1.00:1       0.72:1       -       2.00:1       3.90:1



Logged
Ask yourself :  " WHY do I believe in what I believe?"

Remember that my opinions expressed here are not representative of the opinions of other members on the OOF Forum.

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 36399
    • Jaguar XE 25t, Westfield
    • View Profile
Re: Diff keep or change?
« Reply #18 on: 26 October 2009, 13:59:08 »

2.5 manual and 3.0 auto both have a 3.90 diff according to that so it should make no difference.  :y

Kevin
Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

tunnie

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • Surrey
  • Posts: 37547
    • Zafira Tourer & BMW 435i
    • View Profile
Re: Diff keep or change?
« Reply #19 on: 26 October 2009, 16:18:19 »

Quote
Can someone with access to TIS post up the V6 diff ratios please?

Tunnie, you have it the wron way around; a 2.5 manual fitted with a 2.5 auto diff goes like a rocket because the auto diff is lower geared (4.22:1 compared with 3.9:1 for the manual). Fuel consumption is higher though.

I cant remember the 3.0 ratios, I think the manual is 3.7 but dont know the auto.

I stand corrected  :y
Logged

Matchless

  • Omega Knight
  • *****
  • Offline Offline
  • Gender: Male
  • Nottingham
  • Posts: 1563
    • A white van
    • View Profile
Re: Diff keep or change?
« Reply #20 on: 26 October 2009, 22:52:57 »

So, for max acceleration (and fuel  ;Dconsumption) fit a 4.22 diff from a 2.5V6 auto to your 2.5V6 manual.

Better still, fit a 3.0V6 with the 4.22 diff. ;D
Logged
Pages: 1 [2]  All   Go Up
 

Page created in 0.049 seconds with 21 queries.