Alfa Romeo Bulletin Board & Forums - View Single Post - Weber Carb set up
View Single Post
post #13 of (permalink) Old 06-12-2019, 06:36 AM
alfaparticle
Senior Member
Platinum Subscriber
 
alfaparticle's Avatar
 
Join Date: Oct 2004
Location: Columbia SC
Posts: 12,943
The original jetting for 40DCOE44/45 is 30 mm venturi, 4.5 aux venturi, 117 main jet, 50F15 idle jet, f16 emulsion tube, 180 air corrector - for a 1600 Super.

2L cars with 32mm venturis usually need 130 or 135 main jets and F16 emulsion tubes and 50F8 idle jets. Air correctors mainly affect wide open throttle mixture.

I agree with Slowcreek that installing a wideband AFR meter will let you see exactly what is going on and eliminate the guess work.

You will find usefull information here: https://www.alfabb.com/bb/forums/car...da-sensor.html

Ed Prytherch
79 Spider
76 Suzuki GT500
2011 Jaguar XKR

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
alfaparticle is offline  
 
 
For the best viewing experience please update your browser to Google Chrome