 Weber 44 running rich |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Dave97 |
 Oct 7 2017, 05:19 PM
Post
#1
|
|
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 |
   |
 
|
  |
Replies
| porschetub |
Oct 13 2017, 08:30 PM
Post
#2
|
|
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. |
|
|
|
Posts in this topic
Dave97 Weber 44 running rich Oct 7 2017, 05:19 PM
porschetub
2270 with Weber 44 is running rich
50 idle. 1 1/4... Oct 7 2017, 06:15 PM Perry Kiehl You don't say what size venturi. It's not... Oct 7 2017, 06:27 PM Dave97 Bought the car with them. I think 36. Wouldn... Oct 7 2017, 06:37 PM Elliot Cannon My engine is just a bit smaller than yours. 76 cr... Oct 7 2017, 06:51 PM
Gatornapper I read about 36 venturi's and 32 venturi's... Oct 13 2017, 05:21 PM Dave97 And cylinder head temp light throttle is 200 with ... Oct 7 2017, 07:38 PM Elliot Cannon Mine runs at 325 at 75 mph. 350 or more up hill, ... Oct 7 2017, 07:55 PM Dave97
Mine runs at 325 at 75 mph. 350 or more up hill,... Oct 7 2017, 09:51 PM Elliot Cannon
Mine runs at 325 at 75 mph. 350 or more up hill... Oct 8 2017, 12:43 AM Gatornapper I have no business replying as I am rebuilding my ... Oct 7 2017, 11:08 PM McMark Do you know what cam is in there? Lots of over la... Oct 8 2017, 06:54 AM McMark
I think you have a lot of different issues going... Oct 9 2017, 06:32 AM Dave97 Thanks. I got 13.1 a/f but with the idle mix screw... Oct 9 2017, 04:54 PM Elliot Cannon Venturis and jets are relatively inexpensive items... Oct 13 2017, 07:16 PM Gatornapper Know that well from years of fiddling with carbs. ... Oct 13 2017, 07:49 PM Gatornapper PRECISELY what I was looking for. Have the 32 ven... Oct 13 2017, 09:00 PM rhodyguy Just perform the pre-install procedure detailed in... Oct 14 2017, 10:41 AM Perry Kiehl PM's sent Oct 14 2017, 12:24 PM |
17 User(s) are reading this topic (17 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 24th November 2024 - 02:02 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.