Volvo RWD 120-130 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 5/2013 120-130 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Emissions tricks? 120-130

posted by  mario_e on  Wed Aug 3 02:06 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Sep 17 06:43 CST 2008
[RELATED]

I've read some recently on the advantages of vacuum advance and its been my impression that a lot of what was going on in the early seventies had to do with passing emission standards than making engines run better.

The article in the current Classis Motorsports is what got this all started. Better MPG and part throttle performance is exactly what I would like to improve.

I'm still trying to figure this out, but I'm thinking that with vacuum advance the carb tuning and total advance curve can be adjusted for better overall efficiency.

Another component seems to be a high energy spark, John Parker seems to be currently thinking that it can help off-idle throttle response. Seems to eliminate lean stumble without having to adjust the carb so much that you get too rich of an air/fuel mixture at cruise.

In any case I'm still researching.

-Mario E.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New B20/B21 distributor questions [120-130]
posted by  mario_e  on Tue Aug 2 12:06 CST 2005 >


<< < > >>



©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.