i need help with a F3 1000cc screamer with half a weber ida with 36mm venturi ,any ideas on main jet size & air correction jet size ,have searched the web but no result cheers david p
F3 IDA Weber jets
Started by
davidp
, May 02 2015 07:13
2 replies to this topic
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#2
Peter Morley
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Posted 02 May 2015 - 08:16
Webcon (or other Weber distributors) can usually give you a good starting point for jetting.
#3
Joe Bosworth
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Posted 15 June 2015 - 12:12
David
It is small wonder that you haven't received any meaningful replies to such an open ended question. Without knowledge as to internal specs or even details of exhaust system you are not going to get anybody that is willing to give you a WAG, (wild ass guess).
However, assuming that you have a carb with the right float level as well as sensible idle and accelerator jets as well as a sound secondary venturis you will probably end up with main and air correction jets that have a sum of their sizes totalling about 325.
A good starting point might well be a 150 main and a 175 air corrector. If you were to vary from this starting point you will decrease the air jet by 10 for every 10 increase in the main and visa versa
Good luck and regards
