Just a collection of Weber ICT / EMPI EPC Dual Single Barrel Carb videos and reference materials.
Updated 4/12/2020
Default Jetting in EMPI EPC 34
Main Jet: 150
Air Jet:
Idle Jet: 55
Float Jet:
Emulsion Tube: F-6
Possible Optimal Jetting in Weber ICT/EMPI EPC 34 (source)
Main Jet: 145
Air Jet: 165
Idle Jet: 55
Float Jet: 150
Emulsion Tube: F-6
Possible Optimal Jetting in Weber ICT/EMPI EPC 34 (source) for sea level
Main Jet: 135-140
Air Jet: 160-180
Idle Jet: 55-57.5s
Float Jet:
Emulsion Tube: F-6 (With F6s you can usually run a 55 idle and 140 main.)
Jet Location Diagram
Various URLs
CBPerformance.com: Installing Dual Weber ICT Guide
Shoptalkforums.com: Balancing dual 34 carburetors
TheSamba.com: Weber ICT Balance tube
Volkszone.co.uk: Weber 34 ITC – Balance Pipe?
Wayoutwestie.com: Running Weber Ict’s on a Vw aircooled engine
Pelicanparts.com: Weber 34 ICT installation
ICT/EPC Tuning Info
redlineweber.com: Carburetor Set Up and Adjustment
Hi again. I manged to get them out.
A little more force vith conical anticlockwise threaded pin.
They are labeled F78. Now i only have to find a pair of F6:s i assume.
Many thanks for your detailed webbsite.
Peter
Hi.
I hawe a question how to get out the emulsion tubes as i want to check which type. I have a pair of Empi epc 34 on my 1640 T1 engine in a 550 spyder build. After a few years, the engine started stumblig a lot by half throttle. I now did some uppgrade on nozzles. 60 idle and 137 mains, same 160 air. New acc pump membranes. Beter but not acceptabe for smooth driving. I live in Sweden. And we now have approx 10% etanol and probably something else at the petrol pumps. Should i try to thread the top of the emulsion tubes and try to pry them out using a small screw. I dont want to ruin the carbs.
Appreciate a reply.