Volvo RWD 140-160 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 8/2013 140-160 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Compression 140-160 1971

I know that the accel pump dumps a bunch of fuel when you jump the slides...AEM (the AFR Gauge) guy tells me that the meter will peg from whatever side of 14.7 it's on...I'm assuming that I peg rich...and as I stay in the throttle (we're talking full accel here)...that the gauge read at 15.6 up to 16.2...means that my part throttle/full load mix is too lean...

I'm not unhappy with the porting that was done on the head...it sure sounds like it's breathing as best it can...my thought is ...Where am I in relation to needle opening...I mean I'm fine from zero to 1/4 throttle...I'm fine on full main...how do I shape the needle to get my AFR read under 14 from 1/4 thru to full main.

If I had an EMS you could program the curve...the needle is OUR EMS...

I've isolated slide stops from existing throttle stop...it requires running the slide stops within a 1/2 turn from full extension to maintain the idle at 1K...but the incosistency of existing throttle linkage is eliminated. I've bought larger pilot jets from Sudco...but am hoping raising the needles will correct the idle enough so I can lower the slide stops.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Manifolds [140-160]
posted by  rawits  on Thu Aug 13 10:44 CST 2009 >


<< < > >>



©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.