AirSpeed VW Community Forums

Technical => Engine Tech Forum => Topic started by: neil68 on June 23, 2014, 06:41:12 PM

Title: Weber IDA 3.2 needle valves
Post by: neil68 on June 23, 2014, 06:41:12 PM

IDA guru's:

I've upgraded to an 8 mm fuel tank outlet, Carter rotary pump, -6 AN fuel lines, IDA top entry fuel connection (-6 AN) and 3.2 mm fuel inlet needle valves. Also, enlarged the inlet port inside the carb body where the stock Weber fuel filter sits (removed the filters).

So far I've enlarged the inlet hole to 11/64" which is ~4.4 mm.  Can't seem to find any recommended size for drilling these inlet ports for 1/4-mile racing.

Any recommendations?

Thanks!