Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

> Weber 44 IDF mixture help needed
tornik550
post Sep 5 2012, 08:11 PM
Post #1


Senior Member
***

Group: Members
Posts: 1,248
Joined: 29-January 07
From: Ohio
Member No.: 7,486
Region Association: None



I am working on getting my idle jets correct. My mains seem ok.

At idle (800 rpm) I am getting a reasonable air fuel ratio (14.8 using innovate a/f gauge). I'm using 50 size idles. If I slightly press and hold the peddle to a steady 1200 to 2000 rpm the a/f goes to 19. The car drives like crap until I reach 2000 rpm when the main jets kick in- at the same time the a/f ratio goes to 14 or so.

What adjustments can I make that will leave idle at the same mixture however rich up the mixture til about 2000 rpms? I thought that was mainly idle just only?

I did try to increase the idle jet size to 55. The idle mixture goes down to 11.8 at 800rpm and is perfect between 1200 to 2000 rpm. Confused- I can either get the idle correct OR the low rpms?

I have followed weber's info on best lean each time I switched jets.

Ideas? What am I missing- i'm sure its something simple.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
mrbubblehead
post Sep 6 2012, 04:48 PM
Post #2


Twodollardoug
***

Group: Members
Posts: 1,155
Joined: 17-December 10
From: calimesa ca.
Member No.: 12,492
Region Association: Southern California



your idle/progressive circuit is behaving exactly as it was designed to.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 9th May 2025 - 10:34 AM