Weber 44 running rich |
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Weber 44 running rich |
Dave97 |
Oct 7 2017, 05:19 PM
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#1
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Newbie Group: Members Posts: 47 Joined: 25-July 17 From: Calif Member No.: 21,285 Region Association: None |
2270 with Weber 44 is running rich
50 idle. 1 1/4 screw out Had 55. Drives better, but the a/f stayed about the same 135 main 175 air Floats set at 9 with gasket Have wideband sensor 11.0 at idle Light throttle might see 12.8 Decel 13.2 Full throttle 13.7 Is there a air by pass circuit? It's almost the opposite of a air leak Thanks for your help |
porschetub |
Oct 13 2017, 08:30 PM
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#2
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Advanced Member Group: Members Posts: 4,729 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Sir Andy and Elliot supplied the magic answer ,the carbs are too big ,the only way to restore vacuum is to run smaller vents....period,you can piss around all you like but you will NEVER achieve good drivability ,economy and tuning with 36mm ones.
There are lots of jetting charts and formula's that prove this fact...nothing has changed ,fit the correct venturies (32mm) and then work with idles and mains to suit,start with 55 idles and 130 mains and work up,don't play with everything @ once otherwise you will never achieve a baseline to work off. If you don't do this you will be (IMG:style_emoticons/default/sheeplove.gif) and you will want to (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) and walk away. |
Gatornapper |
Oct 13 2017, 09:00 PM
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#3
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Senior Member Group: Members Posts: 1,259 Joined: 22-September 17 From: Woods west of Richmond, VA Member No.: 21,449 Region Association: South East States |
PRECISELY what I was looking for. Have the 32 venturi's in hand, need to get the jets.....and I know well from experience you don't make multiple changes at one time - if you do, you are totally screwed on knowing what the resultant change is caused by.
Just got my Weber Tech Manual and will be digging into it soon.... Thanks a ton! Forgive me in advance - but I never stop with the questions: With stock engine, 32's, 55's and 130 mains - anyone have the typical settings for the Mixture screw and the air adjusting screw? Just be nice to get them close before doing running engine adjustments........ GN Sir Andy and Elliot supplied the magic answer ,the carbs are too big ,the only way to restore vacuum is to run smaller vents....period,you can piss around all you like but you will NEVER achieve good drivability ,economy and tuning with 36mm ones. There are lots of jetting charts and formula's that prove this fact...nothing has changed ,fit the correct venturies (32mm) and then work with idles and mains to suit,start with 55 idles and 130 mains and work up,don't play with everything @ once otherwise you will never achieve a baseline to work off. If you don't do this you will be (IMG:style_emoticons/default/sheeplove.gif) and you will want to (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) and walk away. |
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