Weber IDF 40 jet sizes, help me get it going right |
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Weber IDF 40 jet sizes, help me get it going right |
wayne1234 |
Feb 2 2010, 04:26 PM
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#1
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Member Group: Members Posts: 260 Joined: 6-April 09 From: indianapolis in Member No.: 10,238 Region Association: None |
Well I tore down the carbs, ther was some junk in it even though it was recently rebuilt by PO, Well it is a 2.0 with a mild cam And it has 1.7 heads, I havent ordered the "tech" book yet. should I get the weber tech book or the haynes weber book? but I think the only thing I need to use the book for is setting the float level... are there any other tricks in the book? So when I order the rebuild kit I want to make sure I have the necessary jets if they need to be changed.. the car ran a little rich, but who knows if the air jets were clogged throwing off the mix... so it currently has on the main jets stacks in the top of the carb the body says 200( Air i assume) then the tip says GMCI 130, Then on the side of the carb (the idle jets I assume) say 50 .... So what do you guys think I should be running? where is the best place to get the stuff???
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Jake Raby |
Feb 2 2010, 08:31 PM
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#2
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Jetting is directly impacted by venturi size more than anything else. What size venturis are in the carbs?
For vents to 36mm the formula is vent diameter multiplied by 4 for the target sea level main jetting. 200 airs will run most combos well, the F11 is standard for a street engine and a 55 idle works every time... everything is related to venturi diameter. |
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