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Weber jetting for 3.0 SC...
Posted: Fri Feb 10, 2006 8:03 am
by speedysimon
Does anyone know what the jetting is for a straight replacement of the CIS injection for a pair of Weber 40 IDA 3C/3C1 ?
I really need a starting point, but can only find settings for a 2.7...
Thanks in advance!
webers
Posted: Mon Feb 13, 2006 8:19 am
by james911rs
Hi you need to speak to Eike Heusen at Chatsworth Motor Spares on 01246 278633. He is the best kept secret in Porsche circles, he sets up loads of Weber race engines. Oh and did mine as well.
Posted: Mon Feb 13, 2006 11:20 pm
by higs356
Bruce Anderson book says
40 IDA 3C
Use 34mm Venturi , F3 Emulsion tubes , 160 main jets and 175 air correction jets is the best setup to start with idle jets chosen by driver test but probably 60 or 65
He also says that it should be dynamo'd to optimize
One further note ...78/ 79 engines duistributor works fine with this setup but 80 and later needs modified (the advance curve is too short)
I've not done this but my engine is a 78 C3 so I'm keen to get feedback from anyone who has
Posted: Tue Feb 14, 2006 5:54 pm
by speedysimon
thanks for the advice - i'll call Eike tommorow.
Posted: Tue Feb 14, 2006 6:10 pm
by stevieboy
Sourthern Carbs in Wimbledon are very good as well.
0208 540 2723.
Posted: Wed Feb 15, 2006 10:27 pm
by higs356
If Stevie's car is anything to go by ...yes they are
Posted: Thu Feb 16, 2006 9:23 pm
by stevieboy
