Posted by: bobhasissues May 11 2007, 01:16 PM
I'm trying to get my 2.0 to run with Weber 44 IDF's. Can anyone share sizes of Main Venturi, Main Fuel and Air Corrector jets for a stock 2.0? What's working for you? There's a lot of conflicting information out there regarding the venturi. Some say 28mm while others say the 36mm will work. I would really appreciate feedback from someone with firsthand experience.
Posted by: SirAndy May 11 2007, 01:23 PM
QUOTE(bobhasissues @ May 11 2007, 11:16 AM)
I would really appreciate feedback from someone with firsthand experience.
well, mine wasn't a stock 2.0L, i had a warmed over 2056 with a agressive cam, but here's some info anyways ...
the 36mm venturis will flow way too much air. the motor will bog down at the off idle transition.
on my 2056, i had to go down to 32mm venturis to get a nice, clean powerband without any flatspots. the larger venturis just don't get the airspeed needed ...
for a stock 2.0L, i suggest you go with the smaller 28mm.
i can't really comment on the jetting for a stock motor. maybe jake will throw in some info ...
Andy
PS:
Posted by: LvSteveH May 12 2007, 12:26 AM
This should be a good starting point for a stockish 2.0L using 44's
32 vents
F11 emulsion
175 air
50 idle
130 main
Another option would be:
32mm vent
F 7 emulsion
200 air
50 idle
130 main
Posted by: ws91420 May 12 2007, 08:03 AM
Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild?
Posted by: SirAndy May 12 2007, 12:15 PM
QUOTE(ws91420 @ May 12 2007, 06:03 AM)
Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild?
you could measure it ...
Andy
Posted by: bperry May 12 2007, 12:29 PM
QUOTE(ws91420 @ May 12 2007, 09:03 AM)
Is there a way to determine vent size w/o disassembly or w/o having to get gaskets for a rebuild?
If they are unmodified weber venturis, they will have the size cast into the top
of the vent. Using a flashlight you should be able to see it by looking
down from the top. It will be a raised number along the mid to upper
edge. Mine came from the factory with the numbers directly under
the accelerator pump jets. Still readable though.
See photo below
--- bill