Weber Jetting
05-09-2004, 04:52 PM
#1
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Join Date: Sep 2002
Location: Vanderhoof,BC(Canada)
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What sizes should be in my carb for it to run properly?This is the same annoying carb that I got off CP racing the "supposedly" came off a identical stock port that was running as well.I have had the carb for almost a year and thats how long its been sitting trying to figure the ****** out now.Any sizes close to what I need is very usefull.This carb was used for 10 hours prior to me buying it.
Thanks
Thanks
05-15-2004, 02:02 AM
#4
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Originally Posted by 730RWHP12A' date='May 14 2004, 02:12 PM
what size is the carb? what motor/port/exhaust do you have?
05-16-2004, 10:33 AM
#6
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Join Date: Apr 2003
Location: gloucester
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well, first off, whats in it? mains, air bleeds, e-tubes, idle jets and ap jets? that will be a goos starting point. altitud and tep/humidity have an affect on how the car runs. waht fuel pressure are you running? mazspeed.com has an aticle on webers in the facts section, check that out, it has some recomendations. also, are you running the 5th&6th ports open? or are they working as they are suposed to?
05-16-2004, 09:02 PM
#7
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Join Date: Mar 2004
Posts: 70
go with f7 or f11 emulsion tubes....... 65f8 or 65f9 idle jets.....180 main fuel jet to start with and a 180 to 190 air jet....the venturies that work best with a 45 carb are 36mm.... some shops use 38mm or bigger to get more flow out of the carb but it usally results in excessive carb bogging.....thats a good starting point.....
05-16-2004, 11:46 PM
#8
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Originally Posted by boosted12a' date='May 16 2004, 07:33 AM
well, first off, whats in it? mains, air bleeds, e-tubes, idle jets and ap jets? that will be a goos starting point. altitud and tep/humidity have an affect on how the car runs. waht fuel pressure are you running? mazspeed.com has an aticle on webers in the facts section, check that out, it has some recomendations. also, are you running the 5th&6th ports open? or are they working as they are suposed to?
05-16-2004, 11:47 PM
#9
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Originally Posted by 730RWHP12A' date='May 16 2004, 06:02 PM
go with f7 or f11 emulsion tubes....... 65f8 or 65f9 idle jets.....180 main fuel jet to start with and a 180 to 190 air jet....the venturies that work best with a 45 carb are 36mm.... some shops use 38mm or bigger to get more flow out of the carb but it usally results in excessive carb bogging.....thats a good starting point.....
05-17-2004, 12:56 AM
#10
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Join Date: Mar 2004
Posts: 70
well before you go buying anything you better find out whats in your carb to begin with.....
i dont like Dellorto carbs but if i had to pick between a 45 weber or a 48 Dellorto i would have to pick the Dellorto.....
the 13b motors really need a 48 to run properly.......
the best would be a 48 weber!!!!!!that would haul ***!!!
i dont like Dellorto carbs but if i had to pick between a 45 weber or a 48 Dellorto i would have to pick the Dellorto.....
the 13b motors really need a 48 to run properly.......
the best would be a 48 weber!!!!!!that would haul ***!!!