MORE Fuel System Questions...
 

Ok, I plan on upgrading my carb with the money my friend finally paid me with for the work I did to his damn Miata. I think Im gonna get a Weber 45 DCOE setup, and later plan on making it blow through. I know that I need an upgraded pump and regulator now, but when I go blow through, I need to upgrade again. So why not kill two birds with one stone and get the fuel system for the turbo setup now, and just run it N/A. Make sense? Ok.

Here was my plan originally (still kinda is):

Aeromotive Street Rod Fuel Pump (150 gph, 20 PSI)
Aeromotive Carburated Bypass Regulator (Adjustable, 3-20 PSI)

Here was another thought:

Some Sort Of High Flow "Junk Yard" Pump
Some Sort Of Rising Rate Regulator (Cartech, Mallory, Malpassi, etc)

And what I keep end up coming back to:

Carter 7 PSI pump
Holley 4.5-9 PSI regulator

Then selling this stuff and buying the right stuff for the turbo setup when the time comes (not too soon anyway).

Now, at first, I was thinking "new only". After price shopping, it seems that Im about $85 short to get the Weber and the all new Aeromotive fuel system, and with Aeromotive being one of the "cheaper" brands out there with the fuel pressure and volume I wanted, I dont know what else to do other than to move onto plan B which is the "junk yard" pump. So, does anyone have any suggestions as to which car I should shoot for to grab a pump off of? And then, if this is the route I go, I obviously will have more money for the FPR, so what do you recommend?

My WAY future plans are for a daily driven which include: rebuilt and ported 12A block with 12A low compression rotors, 12AT dizzy (or locked stock dizzy), TWM throttle body on Weber manifold, and Haltech (or similar) fuel only computer. All of that is in addition to the turbo setup I plan on running on the stock 12A block which would be RB downpipe, custom exhaust, NPR or Starion IC, IC plumbing, some kinda BOV, etc. This is why I feel that I should shoot for the fuel volume/pressure range that the Aeromotive parts can support. If no one is noticing, Im trying to replicate THIS 10 second daily driven FB that DF showed us a long time ago, only not quite as hard core :)

Basically, I want to only buy the fuel system stuff once and call it good. I just wanted to know what you guys might do, what brands you would recommend I look into, or if you have anything I could use for sale :D. Thanks guys.

~T.J.

Since you know your long range plan, it makes no sense whatsoever to go with the junkyard plan. Spend the money now, while everything is just that much cheaper brand new, and you'll get a superior product that will last essentially forever because you are definitely overkill with an Aeromotive 150 gph pump. On top of that, it also means you'll be fabbing brackets and SS braided line ONLY ONCE to plumb the fuel system. You'll save money by not having to buy more fittings as well. The Aeromotive is also gerotor style, so you'll actually be able to enjoy your car stereo without an annoying background grinding "music" from an old school pump. Melodious exhaust noise is one thing. Noise from other things is unacceptable in this day and age...:cool:

RMD,

Why would you need a Haltech for a blow-through set-up?

Also, the fuel system requirements for a blow-through and an FI system are quite different.

If you're going blow through, a descent pump, (even a stock GSL-SE one), a good RRFPR, (maybe a fuel sump too) is all you're really gonna need.

You don't need big $$ braided lines because the system will not be under much pressure at all.

Regular carb pressure = at most 5-6 psi, plus a boost referenced FPR to go 1:1 with the boost/fuel will probably never even see 20PSI out of the fuel system.

A stock SE pump is good for about 45 PSI, more than double what you need, (and very quiet.)

For instance, if you were going with a Haltech in the future (EFI), then why spend money now on a Weber carb?

If you're dealing with Robert, speak to him first in detail, so you can spend your money wisely on the right parts.

I never said I was gonna run braided lines guys ;). The Aeromotive pumps I was looking at have 3/8" fittings. I planned on using pipe fittings for now, not braided, thats WAY too much money.

Also, I said Haltech was a VERY long term goal...As In years away. So the carb is just to "get me started" and then when I can afford the FI and throttle bodies and stuff, then I can reuse the manifold that the carb was on.

You have a good idea there though DF. I can get an -SE pump fairly cheap...I bet it bolts in close if not the same as my pump is now too, huh? Then, If I just get the RRFPR, Id be set for later with the blow through too right?

Then, WAY WAY WAY long term later I could upgrade the pump if I needed to for the FI system and the Haltech...Right?

So what RRFPR would you guys recommend? I was hoping for something that would work now with the blow through, and also later when/if I go FI...

~T.J.

PS - Basically, Im trying to find parts that I only have to "buy once". If that makes sense. I want something that will work for now, as well as some of my future plans.

EDIT: Ok, I think Im just gonna go with that idea that DF had. GSL-SE pump with a RRFPR...I just need to decide which one now. Also, does anyone have an -SE pump they wanna let go?

Couldnt edit...Sorry...

I just called around, and I think I may have a source on a local -SE in a yard. The pump is only $6.50, and she said the whole damn tank would only be another $10 :eek:. Should I grab the tank too? Even if only to just "restore" it while Im working on some other stuff? I hear that they have bigger ports and stuff, and they have that built in "surge tank" that DF pointed out when he showed us his fuel system...Would it bolt into my 83? Anyone know?

~T.J.

Ok, Im not joking this time ;). Will the -SE tank bolt into my car? Which RRFPR should I buy? Im trying to budget out all of my money, and I need to buy this stuff now so I dont go buying shit I dont need then not have money for this :D.

~T.J.

No one knows?

~T.J.

PS - Bump :D

Get the Fuel tank, you know why. It'll be perfect for F.I. in the future, or you can sump it and keep the stock one on the car.

RRFPR - Malpassi is used alot in the blow-through carb setups.

I think aeromotive has a newer one too.

Grab it! How in the world do you get these outstanding deals? A junkyard in NJ wants $50 for a fuel pump. WTH!? I don't mean to sound envious, but why does it seem like you guys out west get the better deals? There's gotta be a logical reason... :confused:

Ok, I guess Ill be getting the tank, even though I dont know if it will bolt straight in...I guess Ill be finding out later ;).

As for the RRFPR, I guess that Ill look into Aeromotive and Malpassi.

Does anyone know about the Cartech unit? They seem to be superior because you can adjust the onset of the fuel pressure as the boost increases. So instead of the usual 1:1 (1 PSI fuel to 1 PSI boost) ratio, you could change it to 2:1 or whatever, so you get 2 PSI of fuel for every 1 PSI of boost. Sounds cool, but its a $300 unit :(.

~T.J.

Not needed unless your going to use ridiculous boost levels or alcohol.

get the SE tank and mounting straps, it will fit in for sure!! get the Mallory #4309 fuel pres. regulator, and grab the SE fuel pump! your fuel system is done!!! and for cheap!

Is that a RRFPR? Neither Summit or Jegs specifically says if it is or not, but a lot of places I read make it sound like it is...If so, "Im all over that like a fat kid on a candy bar" ;).

~T.J.

Oh yeah, and what fuel pressure gauge are you all using?

~T.J.

Sorry there are so many posts right in a row by me, but I keep finding out information after I can edit :(.

I finally got a hold of Summit Racing, and they confirmed that the Mallory 4309 is a RRFPR, so I think thats the one Ill get. This was after calling Jegs, and him telling me there was no such thing as a RRFPR, or a "bypass" regulator, or any other way I phrased it :confused:.

But, the other question still stands, what are you guys using for your fuel pressure gague?

~T.J.