Mohit I am studying "the art of Weber Jetting" from Des Hammill's great book on setting them up, so a bit of a guess here.
Assuming you are running an L16, or 400cc per cylinder, as the weber tuning guide would work it out. Choke size is OK, and you should have a 4.5 auxiliary venturi. Your Main/emulsion/air correction jetting sounds OK, maybe a bit rich for 400cc cylinders, probably good for high revving burnouts. Rule of thumb is the air correction (at the top emulsion tube) should be a bit larger the main jet (at the bottom of the emulsion tube). The critical one for road use is the idle jet, as this is the one that keeps you going 90% of the time. Not so important for burnouts. The 50 size pump jet is usually recommended but some tuners use a "nil" (no bleed back hole) jet to keep more fuel flowing when the accellerator pump jet is operating. Give it a run with the jettings you have and tell us what is not working well, ie does it hesitate just off idle or run out of revs too early, missfire at certain revs etc. Then we can work out what part of the jetting is not ideal. I just remembered, the Hames Weber/SU tuning manual has a table of all jettings for an L16 engine fitted with twin 40mm DCOEs. It would be well worth looking up if you can get a copy from a library (I think its in appendix 4 (page 52?) from memory - listed as Datsun P510. Webers get very expensive to figure out - today I spent my second $100 on minor parts to repair just one 45mm DCOE, and I haven't bought a single jet or choke! ----- Original Message ----- From: "Mohit K. Autar" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, August 30, 2004 2:55 PM Subject: weber jets... Hi list, > I got a set of twin webers 40DCOE.the jets are as follows, > > 1.air corrector jet - 155 > 2.idle jet holder - 50F9 > 3.emulsion tube - F15 > 4.main jet - 120 > 5.choke - 32 > 6.pump jet - 50 > 7.starter jet - 100FS > > will this jets size work well on a L16 with mild cam.i want to use it on my car for the race in the weekend. > [Mohit K. Autar] --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[EMAIL PROTECTED]/ ---------------------------------------------------------------------
