Volvo RWD Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 11/2020

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

B21F and M45

posted by  Volvo From Heck on  Thu May 5 06:03 CST 2022
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Oct 13 20:56 CST 2014
[RELATED]

The 4 speed M45 has the same 1-4 ratios as an M46. I just "retired" my 1980 245 w/M46 (sold the M46 already). The axle ratio is something in the 3.9 range--same for both M45 and M46. Later than the B21F equipped cars the axle ratio of M46 cars had a 3.31 -- much too "long" a ratio for the smaller B21. Volvo took a turn towards fuel economy with the B23 rather than performance as they did with the 140 models which had a 4.10 ratio for 4 speed cars---4.3 for 4-speed + OD. - Dave






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New B21F and M45
posted by  maplebones  on Thu May 5 04:50 CST 2022 >
  • New B21F and M45
    posted by  Volvo From Heck subscriber  on Thu May 5 06:03 CST 2022 >
    • New B21F and M45
      posted by  bulletproof subscriber  on Thu May 5 14:15 CST 2022 >
  • New B21F and M45
    posted by  bulletproof subscriber  on Thu May 5 13:24 CST 2022 >
    • New B21F and M45
      posted by  maplebones  on Sat May 7 17:11 CST 2022 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.