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 fucker out now.Any sizes close to what I need is very usefull.This carb was used for 10 hours prior to me buying it.
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Anyone? I need this one running sometime this year so I can get back to work on my turbo.
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what size is the carb? what motor/port/exhaust do you have?
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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?
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Anyone else know?
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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?
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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.....
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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?
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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.....
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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 ass!!! |
Originally Posted by 730RWHP12A' date='May 16 2004, 09:56 PM
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 ass!!! |
Originally Posted by 730RWHP12A' date='May 16 2004, 09:56 PM
well before you go buying anything you better find out whats in your carb to begin with.....
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actually, i think he gained 50. wasnt its 680rwhp12a??
just get a damn holley with one of these...lol http://kgparts.com/images/Intakes/13b6port.jpg |
Originally Posted by Racer X' date='May 17 2004, 08:26 PM
Are the venturi sizes on the or is there a specific way to measure them?I need to figure out how to measure all these parts now. https://www.nopistons.com/forums/pub...1047683358.gif
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Originally Posted by j9fd3s' date='May 18 2004, 08:36 AM
my ida has the number cast into the venturi, most of the other stuff is stamped
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Originally Posted by treceb' date='May 18 2004, 06:58 AM
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Originally Posted by Racer X' date='May 18 2004, 08:31 PM
Some days I wish I had.I know webers are well known for being reliable tho.Once you get the tuned. https://www.nopistons.com/forums/pub...1047683358.gif
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Originally Posted by 730RWHP12A' date='May 20 2004, 01:40 PM
dont worry...with a little help and some tuneing your 7 will be running good!!
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I'll order some jets and **** thru racetep.They seem to deliver really quick here
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go to carbs.net, they have pretty good prices on weber jets and they have any part you could need
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Originally Posted by Racer X' date='May 18 2004, 11:31 PM
Some days I wish I had.I know webers are well known for being reliable tho.Once you get the tuned. https://www.nopistons.com/forums/pub...1047683358.gif
im a fan of dellortos. i bought 2 identical set ups when i was rebuilding my engine. once it was done, i loved it... |
Originally Posted by treceb' date='May 27 2004, 12:06 PM
i was just saying. ppl sear by jeytech parts and holley parts are available everywhere.
im a fan of dellortos. i bought 2 identical set ups when i was rebuilding my engine. once it was done, i loved it... |
Just installed them and IT RUNS.No idle yet but I hope I can fine tune it from here.Thanks everyone.
PS, heres the new setup: 180 mains,190 air with F11 E-tubes. |
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