weber jetting for 3.2 carrera help
03-07-2007, 11:35 PM
#1
Track Day
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Location: mcallen tx
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weber jetting for 3.2 carrera help
need suggestions for ida 40 weber jetting on 3.2 carrera with ge 40 cams crankfire twin plug heads at sea level. has 36 venturi, 155 mains , 180 ac, and 60 idle jets. only getting 195 rwhp with nl compression/ leakdown.
03-08-2007, 01:42 AM
#2
RL Technical Advisor
Hi:
40mm carbs are too small for a 3.2 with those cams. You should use 160 mains, for sure. The rest looks OK but emulsion tubes are important and you didn 't say what they are.
I would be using 46 PMO's with 38mm venturies on tall manifolds with 46mm tops and 39-40mm bottoms.
Exhaust is VERY important for HP & torque.
What do you have?
40mm carbs are too small for a 3.2 with those cams. You should use 160 mains, for sure. The rest looks OK but emulsion tubes are important and you didn 't say what they are.
I would be using 46 PMO's with 38mm venturies on tall manifolds with 46mm tops and 39-40mm bottoms.
Exhaust is VERY important for HP & torque.
What do you have?
03-08-2007, 05:42 PM
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thanks for the reply,
the emulsion tubes have a 3 stamped on the bottom, the choke has a 36 inscribed and the auxilliary venturi has a 4.5 stamped. The exhaust has headers and a stainless turbo muffler with a single exhaust.
the emulsion tubes have a 3 stamped on the bottom, the choke has a 36 inscribed and the auxilliary venturi has a 4.5 stamped. The exhaust has headers and a stainless turbo muffler with a single exhaust.
