Setting up Webers?

[sprintstar67]

As my speedster is running crap, but is equipped with Weber 40s, wheres the best place to look for info tuning them?
Also what are the recommended venturis and jets for a stock Super 90 motor?

Cheers, Andy.

[Nige]

settings generally vary from motor to motor, even the same spec!

Its best done on a rolling road, so it can be setup throughout the rev range.

Mine came back from a local (Derbyshire) rolling road/tuner yesterday and runs miles better than it did before. They set the timing, balanced the carbs and the set the jets. All for £50!

Also make sure all the ignition parts are in good shape, dissy, rotor, plugs leads, etc. Accurate valve/rocker gaps are essential to smooth running. Air leaks on both inlet and exhaust side of things will also affect smooth running. Get those right before paying out at a tuners, unless you want them to it.

[wildtexas]

Was there not a book on the subject, I know there was one for Dellortos.

Andy did I bring you those dell 36s? woudl you want them?

Matt

[sprintstar67]

Don't think so matey, think you packed them up with your gear! Going to try and get the Haynes book on Webers I think.
Shame GRV closed up shop, don't know of another rolling road locally.....

Anyway Matt, get back to your ten gallon hat!

[Nige]

I'd check out your yellow pages, or the classic car section. Most places can deal with a pair of webbers, doens't really matter what they are attached too.

Ring around a few places and see how you feel about them, although not local to you http://www.peter-burgess.com/ it just shows they don't have to be Porsche specialists. The problem is just finding someone who knows carbs, its getting a forgotten art these days as most just specialise in EFI