Slick Fuel Delivery System for early C3
Thread Starter
Instructor
Joined: Aug 2000
Posts: 163
Likes: 1
From: Lewisberry PA
Slick Fuel Delivery System for early C3
I've posted a few notes about fuel delivery problems and I think I worked out a few good things.
I've been pestered with noisy high volume electric fuel pumps and low pressure quiet ones. I installed a Holley universal on Friday and it works great. It's quiet, easy to mount and puts out more pressure than I can handle. http://www.holley.com/HiOctn/ProdLin...P/512-105.html
To regulate the pressure I installed an Aeromotive bypass regulator. http://216.242.145.16/products/product.phtml?p=15. I liked this one a lot because it allowed me to put any excess pressure back to the tank through the return line. This, I think, should extend the life of the electric fuel pump.
I was using the stock filter to facilitate the return line, but since it was no longer needed, I used one of the clear universal filters. I have a picture about 1/2 way down on my beginner web site. http://temp.corvetteforum.net/c3/jeffreed/
So far, I am very happy with the set up. I need to clean it up with some allen-head 3/8" plugs, but it looks pretty good so far. Let me know what you think...
I've been pestered with noisy high volume electric fuel pumps and low pressure quiet ones. I installed a Holley universal on Friday and it works great. It's quiet, easy to mount and puts out more pressure than I can handle. http://www.holley.com/HiOctn/ProdLin...P/512-105.html
To regulate the pressure I installed an Aeromotive bypass regulator. http://216.242.145.16/products/product.phtml?p=15. I liked this one a lot because it allowed me to put any excess pressure back to the tank through the return line. This, I think, should extend the life of the electric fuel pump.
I was using the stock filter to facilitate the return line, but since it was no longer needed, I used one of the clear universal filters. I have a picture about 1/2 way down on my beginner web site. http://temp.corvetteforum.net/c3/jeffreed/
So far, I am very happy with the set up. I need to clean it up with some allen-head 3/8" plugs, but it looks pretty good so far. Let me know what you think...
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Re: Slick Fuel Delivery System for early C3 (JeffReed)
Looks good. 2 things:
1: The EFI pumps should be run with a 100 micron pre-filter (also available from Holley).
2: Please get rid of the glass fuel filter. They're dangerous + don't flow worth a.... well you know.
BTW, I'm running the Holley 250 l/hr EFI pump (made by Wal-bro) on my '71 and it is very quiet. Actually I can't hear it all.
1: The EFI pumps should be run with a 100 micron pre-filter (also available from Holley).
2: Please get rid of the glass fuel filter. They're dangerous + don't flow worth a.... well you know.
BTW, I'm running the Holley 250 l/hr EFI pump (made by Wal-bro) on my '71 and it is very quiet. Actually I can't hear it all.
Thread Starter
Instructor
Joined: Aug 2000
Posts: 163
Likes: 1
From: Lewisberry PA
Re: Slick Fuel Delivery System for early C3 (1bad69)
I get that question often... I had one bad experience, plus I want to go fule injected one day. I had a really nice 69 pickup with a 350 and one day it started running really poor. I troubleshot the ignition, carb and all the normal items. I finally broke down and took it to a professional and he figured out the cam shaft was worn almost flat on the fron 1/3 lobes. Turned out the rubber diaphram on the Holley hi-pro meachanical fuel pump sprung a leak on the inside and was sprying raw gas on the cam. I fugured that was enough of a bad experience not to use a mechanical if I can do it with an electric. Just my personal problem!! [IMG][/img] Report this to a moderator DoInsert(' :cry ');[/IMG]
Thread Starter
Instructor
Joined: Aug 2000
Posts: 163
Likes: 1
From: Lewisberry PA
Re: Slick Fuel Delivery System for early C3 (Langadorf)
When I first installed the new regulator, the pressure was flowing 20lbs through the glass filter. They seem to flow enough for carbs, but I'm open to suggestions too.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Re: Slick Fuel Delivery System for early C3 (1bad69)
I had a diagram rupture on my and it filled the motor with gas. The oil came out the dip stick hole. I won't let this happen again. I also like to prime my system before I start up and on comming home I shut the pumps off about 1/8th mile from home to lower the level in the float bowls in case there is any porculation. I also always run 2 electric pumps incase of one failing. I found a bunch of nice rubber mounts just made for mounting and isolating those noisy pumps. Don't know what they come off of>
Race Director
Joined: Nov 2000
Posts: 16,416
Likes: 1
From: NC,USA
Re: Slick Fuel Delivery System for early C3 (JeffReed)
Glass filters are dangerous because they can/will crack if over heated, or bumped into... spews gas all over the car
We have fiberglass cars, so they already burn like theres no tomarrow. Change your filter out to a steel shelled fram of some sort :chevy
We have fiberglass cars, so they already burn like theres no tomarrow. Change your filter out to a steel shelled fram of some sort :chevy
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