WTB:, Weber 40's for a 2.0 |
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WTB:, Weber 40's for a 2.0 |
BuddyV |
Dec 8 2010, 11:05 AM
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#1
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Robert Group: Members Posts: 555 Joined: 8-April 05 From: Santa Rosa, CA Member No.: 3,898 Region Association: Northern California |
I bought Koozy's 2.0 motor (runs strong, mystery build/internals)... it is being installed as we read/write.
I have a pair of Delorto 36's, but it has been strongly suggested that I go with 40's. So, I am looking for a good set of 40's Weber. As always, the budget is blown... but it seems worth it to go 40's now as the motor is being installed. Let me know what you have and best price, shipped to Bay Area..... I think it's 94002. Or local, and I can pick up. (fingers crossed) Robert (707) 888-1857 |
koozy |
Dec 8 2010, 01:21 PM
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#2
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Senior Member Group: Members Posts: 651 Joined: 21-July 07 Member No.: 7,931 Region Association: None |
The maximum air flow is determined by the size of the venturi. Thus, the size differences in the carbs IE: 36 vs 40. The advantage to the 40mm carburetors would be most realized at mid to high range if the vent size differed. You can only get so much air through a particular venturi. The larger the vent, the more air. Thus, the more available air/fuel if and when needed if using a larger venturi. There are many other components to the puzzle when it comes to the correct parts for your application. Not withstanding the lack of readily available parts for the Dells.
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ME733 |
Dec 9 2010, 08:35 AM
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#3
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Senior Member Group: Members Posts: 842 Joined: 25-June 08 From: Atlanta Ga. Member No.: 9,209 Region Association: South East States |
The maximum air flow is determined by the size of the venturi. Thus, the size differences in the carbs IE: 36 vs 40. The advantage to the 40mm carburetors would be most realized at mid to high range if the vent size differed. You can only get so much air through a particular venturi. The larger the vent, the more air. Thus, the more available air/fuel if and when needed if using a larger venturi. There are many other components to the puzzle when it comes to the correct parts for your application. Not withstanding the lack of readily available parts for the Dells. ....................Not exactly...The butterfly,s/ throttles, are the biggest factor in getting maximum horsepower.(with a correct venturi). The 36 dell,s will be smooth at the bottom end ok at the midrange and fall of at the top end.(As they come from the factory, the venturis are only 28mm)., The 36 dell,s have 36mm butterflys. The weber 40,s have 40 mm butterflys.The weber 44,s have 44 butterflys....bigger will make more HP, at the upper rpm range.(with proper venturis, and jetting). they will also be problematic to run/accelerate smoothly from idle.But it can be done. |
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