 Fuel Pressure?, Pump and Regulator |
|
|
|
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. |
|
|
| stoneman30hotmail |
 Aug 29 2023, 06:03 PM
Post
#1
|
|
Member  Group: Members Posts: 80 Joined: 10-September 22 From: Greensboro, NC Member No.: 26,834 Region Association: South East States  |
I have a 1.7L. The pump I have looks like this.
 https://www.lceperformance.com/ProductDetai...eUaAvWtEALw_wcBWhere I see it says it is 5psi and recommends a pressure regulator. But I don't see one. I have this single carb.  How bad is that? Do I really need a regulator? What is going on without it? Related is that the PO said they recently gave up on FI. But I assume no engine work was done. I found this pump in the trunk.  Recommendations? |
   |
 
|
  |
Replies
| brant |
Aug 30 2023, 10:56 AM
Post
#2
|
|
914 Wizard Group: Members Posts: 12,179 Joined: 30-December 02 From: Colorado Member No.: 47 Region Association: Rocky Mountains 
|
your question about whether you need the regulator:
the needle and seat in the carb stops the fuel from flowing in. they can stop and handle pressure around 3psi... sometime 4psi but much higher and they will blow the needle open and continue to add fuel to the carb even if the bowl is full already. So the bowl can overflow and start a fire if the leaking gasoline hits the headers or another source of ignition. |
 |
|
Posts in this topic
stoneman30hotmail Fuel Pressure? Aug 29 2023, 06:03 PM
ndfrigi 1. The lower fuel pump you saw was the original F... Aug 29 2023, 08:47 PM
stoneman30hotmail
your question about whether you need the regulato... Aug 30 2023, 03:13 PM porschetub
your question about whether you need the regulat... Aug 31 2023, 02:26 PM rjames Did the PO give you the FI stuff, too? If so, cons... Aug 30 2023, 12:55 PM stoneman30hotmail
Did the PO give you the FI stuff, too? If so, con... Aug 30 2023, 03:07 PM VaccaRabite Its probably an internally regulated pump thats pu... Aug 30 2023, 02:07 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 14th April 2026 - 06:15 AM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.