Quote:
Originally Posted by jkh2cpu
I got my Webers in 1987 for my 1973 911T MFI, and the Air Correction jets were 170, the mains 1.30, and the idles 55-60. When did these 'new' vaules surface? Or, put another way, how late to the party am I  Seeing as how the transition is flat and a bit rough, I'm guessing that larger AC jets would be a good idea. |
Oh, those aren't "new" values, they come out of my note vault that covers many years of trying to optimize Weber set-ups for different cars. Your car is unique in that you have cams that are considered mild, a relatively low compression ratio of 8.0:1 (possibly only 7.5:1), and 32mm ports; not the best way to make carbs work well (the 2.4 T MFI cars gave us the biggest headaches!). You fail to mention your venturi size or emulsion tube number, both are very important to know when trying to improve overall running. Also, if you know it, what is the I.D. of the intake manifold where it meets the intake port (you want to do whatever is necessary to avoid having a "step" at that mating point)?