 New guy carb question- how to select the right jets? |
|
|
|
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. |
|
|
| Chily89 |
 Oct 13 2014, 07:28 PM
Post
#1
|
|
Newbie  Group: Members Posts: 2 Joined: 13-October 14 From: Ohio Member No.: 18,013 Region Association: Upper MidWest  |
I'm helping my friend get his car working correctly. We are having some carb issues. What is the process for getting the correct idle jets? I have read instructions on the redline website but I'm still having issues. The 914 is a 4cyl 2270 with dual weber 44 Idf's.
I read something about removing the main stacks then driving around. Can somebody please explain this method further. |
   |
 
|
  |
Replies
| ThePaintedMan |
Oct 15 2014, 07:51 AM
Post
#2
|
|
Advanced Member Group: Members Posts: 3,887 Joined: 6-September 11 From: St. Petersburg, FL Member No.: 13,527 Region Association: South East States 
|
Hope this doesn't get too hijacked...
But Stu, you hit on several good points. I think there are several things that complicate the issue on our motors. The firing order, exhaust type, sensor location and only 4 cylinders combine to a scenario where getting a "mean" or average reading at low RPMs is problematic with the high-refresh rate of a modern wideband sensor. Combine that with a bigger cam and reversion really screws with things. At least, that's my understanding, so maybe that's what you're experiencing. Chris made an excellent synopsis of some of this (although for a different problem) in a thread here: http://www.914world.com/bbs2/index.php?sho...217979&st=0 |
|
|
|
Posts in this topic
Chily89 New guy carb question- how to select the right jets? Oct 13 2014, 07:28 PM
ThePaintedMan
I read something about removing the main stacks t... Oct 13 2014, 09:04 PM
McMark
I read something about removing the main stacks ... Oct 13 2014, 10:52 PM Chily89 There currently is an AEM wideband installed. The... Oct 14 2014, 04:58 AM ThePaintedMan When you say it's "always too rich",... Oct 14 2014, 05:56 AM tornik550
When you say it's "always too rich... Oct 14 2014, 06:15 AM tornik550
When you say it's "always too rich... Oct 14 2014, 06:40 AM ThePaintedMan Okay Tornik, that makes sense.
36s should be in t... Oct 14 2014, 07:36 AM tornik550
Okay Tornik, that makes sense.
36s should be in ... Oct 14 2014, 07:46 AM stugray AFR gauges are nearly useless except at WOT with a... Oct 14 2014, 09:38 AM McMark What you're describing about the AFR sounds li... Oct 14 2014, 09:29 PM stugray
stugray - Narrowband AFR gauges are nearly useles... Oct 14 2014, 10:00 PM tornik550 Thank you for every ones help. I found a very in... Oct 15 2014, 05:45 AM ThePaintedMan Yes. Which is why I suggested to start there first... Oct 15 2014, 06:04 AM stugray
Stu - think of it this way, widebands operate usi... Oct 15 2014, 07:14 AM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 9th July 2025 - 04:25 PM |
Invision Power Board
v9.1.4 © 2025 IPS, Inc.