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Hi Cameron,
That's a nice looking power curve... What carburetor settings did you end up with (ie venturis, emulsions, mains, idles, airs etc, etc). What intake/exhaust port sizes are you running? Cheers,
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914/6 GT (Repro) Tarmac Rally car 928 S4 - 1989 911SC - 1980 944 TURBO - 1986 944 S2 - 1990 |
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04-22-2010, 07:50 PM
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Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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Quote:
If I may say so, sizes are no reflection of head flow & velocity,........  I've seen big ports that didn't move much air and I've seen smaller ones do very well, depending on camshaft profiles. Certainly JMHO,
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Steve Weiner Rennsport Systems Portland Oregon (503) 244-0990 porsche@rennsportsystems.com www.rennsportsystems.com |
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04-22-2010, 11:59 PM
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Join Date: Jun 2006
Location: Adelaide Australia
Posts: 886
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Mark
What Steve said on the ports  As I understand its more about shape than size. That said they look freakin' huge and I think were roughly 38mm but they are not round.Webers I think have 34mm main venturis, 140 main jets, 160 air jets, 60 idles, F3 emulsions, PMO tall manifolds - port matched. As noted above there has not been enough time to play with the Webers to get a completely satisfactory result - out of interest my mechanic said it ran better with the standard secondary venturis than the talls which runs contrary to conventional wisdom. That may change with a change in emulsion tubes? Jetting is pretty good otherwise. Cheers Cam
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'74 RS 3.0 Replica Porsche 968 Clubsport SOLD '70 911E Bahia Red SOLD '71 911 S/T Replica 2.3 Twin plug BEAST SOLD
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04-23-2010, 03:24 AM
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