The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Seriously considering changing final drive ratio 200 1986

posted by  JimG on  Sat Jan 5 21:19 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Have a good friend who owns a shop and can do this for me. Also have the complete rear axle (including diff) from an early 240 with 3.73:1 gears.
Want to swap for the 3.31:1 gear set that I currently have, in the hopes that the swap will result in better performance. I've always thought that the stock gearing is too tall. It's great to be able to cruise at 70 and turn over only 2600 revs, but the red block n/a motors don't seem to "wake up" 'till >3000rpm.
Theory is that if I can keep the engine closer to being within its powerband, it will be easier to accelerate/pass/merge, especially on the highway. Does this make any sense?

Few questions for the Volvo guru's....

1) How will this affect fuel economy? Currently averaging about 26mpg, mostly highway miles.

2) How much will this swap make my gears "shorter"? Should I consider joining the rowing team? :-)

3) How much higher will my cruising RPM be in top gear? 'Bout 150-200rpm or so?

Thanks in advance. Appreciate all of the advice that the kind folks on the BB have unselfishly given me in the past!!

-Jim








USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.