 Fuel Pump Location-Rear Firewall, Suggestion Other then Up Frunk |
|
|
|
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. |
|
|
| 914_teener |
 Aug 18 2023, 02:56 PM
Post
#1
|
|
914 Guru  Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California  |
I never took pictures of my 1.7 with stock D-jet and when browsing for new projects I found a car almost exactly like mine with the fuel pump relocated exactly where I relocated mine. Just posting like this since I see threads about it and always the first thing that comes up is relocating it up front, running the electrical, which circuit to use, how well does it fit inear the steerig rack...ect. ect.
Its an excellent location and required nothing more than a couple of rivnuts and the stock isolators. I DIDN't use and don't recomend the fuel line clamps or hose but the location is the same that I used years ago. Easy to check on the filter or service without taking off the rack pan cover or unraveling the fuel line and reinstalling without kinking it. ONLY my opinion....like the other thing...everybody's got one.  |
   |
 
|
  |
Replies
| ClayPerrine |
Aug 18 2023, 05:13 PM
Post
#2
|
|
Life's been good to me so far..... Group: Admin Posts: 15,514 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
|
There are only two problems with the fuel pump in that location:
1. Fuel pumps are better at pushing than pulling. Mounting it closer to the tank makes it work better. 2. The fuel pump there is known to vapor lock due to the proximity to the engine heat. That's the reason that Porsche moved the pump up front in 75. Clay |
|
|
|
| 914_teener |
Aug 18 2023, 06:48 PM
Post
#3
|
|
914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
QUOTE(ClayPerrine @ Aug 18 2023, 04:13 PM)  There are only two problems with the fuel pump in that location: 1. Fuel pumps are better at pushing than pulling. Mounting it closer to the tank makes it work better. 2. The fuel pump there is known to vapor lock due to the proximity to the engine heat. That's the reason that Porsche moved the pump up front in 75. Clay Clay....come on! 1. The stock pump is a diaphragm pump AND it's loaded from the tank by gravity at that location. 2. It's no where near the HE's in fact, in that location it's getting a negative airflow and while it's next to the air deflector....it's getting airflow. Had my stock pump in this location for 10 years in Palm Springs idling in traffic in 120 ambient air temps....no vapor lock. Just trying to help out folks who may not want to do the other work required to put it up front. Like I said...others may disagree. |
|
|
|
Posts in this topic
914_teener Fuel Pump Location-Rear Firewall Aug 18 2023, 02:56 PM
wonkipop
There are only two problems with the fuel pump i... Aug 19 2023, 02:18 AM ClayPerrine
not a diaphram pump.
its a roller cell pump.
it ... Aug 19 2023, 06:05 AM
rhodyguy That pump location is still lower than the tank ou... Aug 18 2023, 05:30 PM BeatNavy That's exactly where mine ('72) was when I... Aug 18 2023, 05:55 PM |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 7th June 2024 - 10:18 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.