I have gone through the archive and done a bunch of searches. There is no real clear optios it seems every thred i have red has turned into some sort of debate that is way off topic.

My question is what sort of options are there for fuel system upgrade on a stock port 12A?

Its an '84 GSL

I am working on my mod plan. I am going to order the RB Street port exhaust system this fall, and I know the fuel system is the next on my list and I am just trying to make my plan

Thanks for the help everyone

Anthrax

 

How much money do you want to put in the upgrade?

 

Getting a new higher flow-rate fuel pump is a good one to have. Get a fuel pressure gauge, as well, it will help diagnose fuel problems in the future.

 

Cool thanks guys.

As for money I am not too concerned. I usually like to look at all my options and then find somthing that suites the aplication.

Does any one have any brand recomendatons or cautions? Like brands to look at or brands to stay away from?

Thanks again

anthrax

 

id go with a holley fuel pump and regulater because they are rebuildable.

 

Cool I was leaning toward the Holley because I have herd they are reliable, and I can get holley parts localy

Thanks

anthrax

 

There was a good picture-filled thread of what DirectFreak did to his fuel system. I have it archived here on my computer, but I can't find it on the forum or in the archive right now.... So DF, if you can grace us with it again until I can get back into my webspace on Monday and post it, that would be much apprciated. You have an Awesome System going there, and I'm hoping to get the same kinda thing going for mine next year

The basic gist of a good fuel system upgrade though is this:

A new reliable high flow fuel pump
A new, better quality fuel filter
A fuel pressure regulator in the engine compartment
And new lines

Jon

 

i run the carter 7psi pump, and the holley 1-4 pr. and i am really happy with it. hasn't given me any problems yet. btw, i got them from summit for a fairly reasonable price.
jeff

 

If money isn't the main priority, the Mallory Comp110 is much quieter then the Carter. I never heard a Holley, but its supposed to be loud too.

Conway

 

i have also heard mallory being a good pump... Everyone here that has a turbo set up uses them, they like Holley but for some reason the mallory lasts longer.. thats of what i heard... BTW what i have heard is a Holley, they are loud.. BUUT chicks dig it..they kinda think you know what your doing, and your cars all souped up and ****.. hehe... But im getting a holley.... due to the fact.. (im in it for the chicks)... peace

 

The Mallory line of pumps are also rebuildable and do not exhibit pressure pulses like all of the older tech, noisy, traditional fuel pumps out there...FYI

 

Holley blue fuel pump..

comes with regulator,rebuildable,and reliable Nice lbs ratings..little loud..but ok..

I have had mine on for 3 yrs

 

I installed a Mallory Comp70 with a Holley regulator. Works great! The pump is pretty quiet but my stock pump was absolutely silent. To dial it in you'll need a pressure gauge. 0-5psi gauges seem to be kinda hard to come by but I bought one from American Science & Surplus that worked real well. Here's the link to their Pressure Gauges. Cheap too! I hooked up the gauge to my fuel line and taped it to the ouside of my windshield while I dialed in the regulator. After several spirited runs I got it dialed in to about 1.5psi and lemme tell ya.... throughout the entire rpm range it barely budges.

The results? Well it defintely has more high end power. Before the fuel pump and reg it started loosing power shortly after 7k. Now she pulls real strong up to at least 7.8k.

mmmmMMMMMMMGRRRRRRRRRRRR .. *CHIRP* .. GRRRRRRRR

--Bob

 

I am so happy to see the Mallory camp growing...it makes me want to cry...

 

Man lots of great info here I gratly appreciate it. My plan is to wring as many of the 150 HP I can out of my stock ported 12a as possbel and go ported when I need a rebuild

Thanks again

anthrax