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 )

> Now, to tune the weber 40 IDF
purple
post Feb 21 2008, 11:26 PM
Post #1


Pigeon feeders attract me
***

Group: Members
Posts: 938
Joined: 24-July 07
From: Houston, TX
Member No.: 7,942
Region Association: None



I know it's been rehashed over and over again....

I have some questions on how to do it after futzing around in the garage trying to make SOMETHING happen.

I followed the carb clinic instructions to the T and I think something is adjusted wrong... Maybe you guys can help.

I have the idle speed screws to 1/2 turn past first contact with the arms

linkage disconnected

air bypass screws all the way shut.

all mixture screws out 1.5 turns

it'll start and run (slowly) and it'll get to what i think is around 450 rpm or something. really slow..

the only way I can get it to idle at 450 or so is by having the mixture screws in pretty far. two cylinders dont even react past a certain point! i can have them all the way in (lightly) and the engine doesnt change its note at all!

Please ask me questions so I can give the right info. I've never done this before but i'd like to believe these arent fiddly carbs.

When they say the engine should 'speed up' is it a really noticeable change? because mine's so subtle as to be not affected.

please help guys!

these are brand new carbs from jake's store. I have the box that says what the jetting is. i'll post that soon.

what are 'jets' and what do they do?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
 
Reply to this topicStart new topic
Replies
pete914
post Feb 22 2008, 04:11 PM
Post #2


Member
**

Group: Members
Posts: 178
Joined: 21-August 07
From: east coast
Member No.: 8,025



wait...I thought honda's loved to rev up?
I hear you though purple. I want to dance that line between performance and fuel economy. About to hook up a set of these myself. Quite a technique intensive thing to get these timed right. Especially (as I'm told) with an 009 dizzy and the stock cam shaft.
What did you put your valve gaps at for you car? I'm assuming it's a 1.7 or 1.8? I've got mine at .006 in/ex and i think they are still too noisy. I know some people suggest .004
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: 7th June 2024 - 03:06 PM