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Fuel pump question.
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Posted by: shadowboy

Hey all, haven't posted here in quite some time.

i just have a simple question regarding a fuel pump.

admittedly, i do not own any domestic vehicles, but i am seeking a domestic part for my import (will explain the reasons for this need later).

here is what the project entails.

i have a 1987 Honda CRX HF. the car originally came with a very anemic 58HP (yes, that is right, 58HP) carbeurated engine. well, after sitting a long time the car wouldn't start, and i didn't consider 58HP worth troubleshooting, or even buying a new coil for (i am guessing it was the coil).

so, for the last several months i have been slowly, in my free time, working on putting an 89 integra engine in it. this engine makes more than twice the power of the original engine (from 58 to 118HP).

i have reached a point where i have 2 conflicting problems.
1: the integra engine is fuel injected, and the CRX was carbeurated--the line fittings definitely can not handle the pressurized flow of the fuel injected fuel pump.
2: i am short on time, and money, and replacing the whole fuel system of the CRX with that from a fuel injected model will be costly and time-consuming. (nevermind the amount of time i'd have to wait for a suitable donor car to appear in a junkyard, then there is that issue of ripping apart the interior, AND dropping the fuel tank to get the lines out). i also do not wish to use the fuel injected donor's fuel tank because of the weight issue (it's a bigger tank).

so here is the idea i came up with. i am going to mount the integra's fuel pump in the engine bay of the CRX, on the firewall. the only problem i see with this, is that i am not sure if the fuel pump can do well drawing fuel from the tank all the way to the engine bay. so here is my idea.

use a secondary fuel pump by the gas tank.

so what i need is a cheap, low-pressure carbeurated fuel pump just to feed the fuel lines (at low pressure) to prime the main pump located in the engine bay.

i figured that a carbeurated domestic electric fuel pump would fit the bill nicely. cheap, and hopefully reliable (i wouldn't see any reason why it wouldn't be reliable).

the key is that i am looking for a pump that flows at under 10psi (5-7 should do the trick). i prefer a domestic V8 pump because i can be 100% sure that the pump will be able to meet the demands of my 118HP engine, and also accomodate any future modifications.

Posted by: MikeT

Hmmmm got a question: What fuel pressure do you need at the injector? (i'm assuming its FI)

It seems to me the easiest solution would be an inline pump, mounted under the car near the tank.

Posted by: shadowboy

Quote:

Originally Posted by MikeT


	Hmmmm got a question: What fuel pressure do you need at the injector? (i'm assuming its FI) It seems to me the easiest solution would be an inline pump, mounted under the car near the tank.

no shit, i know that's the easiest solution. if i could do that, i would. that is in fact the stock Si setup (Si = the injected 85-87 CRX model).

the problem is that the car was originally carbeurated and the fuel lines are simple hoses with spring clamps. (like what is used on vacuum lines).

i wouldn't fully trust that kind of connection with a 35+ psi fuel pressure.

what i wanna do is a low-pressure (5-7psi) inline pump by the tank (where the stock 35psi pump goes), and then have the 35 psi pump in the engine bay, where it can utilize the high pressure hoses for the fuel injected engine.

Posted by: No Rice Allowed

Only females would own CRX's.. That has to be the gayest fuggin' car that ever was....Seriously..sit back and look at one...It has to be one of the most feminine lookin' thing on wheels...How can any guy claim to own one of these with dignity? My suggestion to you is simple, paint the car pink and start clipping hair....Screw the modifications, you might break a nail....

Posted by: Mr. P

Uhhhh, NRA, perhaps you'll tell us how you really feel about this car?

My comment is, "you better be careful, because you have the makings of the human fireball". Be careful

Mr. P

Posted by: shadowboy

look, i didn't post this thread to ask for people to tell me what i already know as the best solution.

or to have others make statements that make the dumbass jump from car choice to sexuality (only an idiot would make that kind of association, anyway).

i posted to ask what is a good, cheap fuel pump that can deliver fuel through my fuel line at 5-7 psi. if you don't have an answer, don't waste my time here...

Posted by: No Rice Allowed

Let's see, first off... if you want to be respected here with a legitimate answer, then you'll learn to respect what others have to say, even if it's not the answer your looking for. Second, You posted this in the Pit instead of the General Tech Forum, which means anything can go and will. So, only an idiot would ever attempt to ask a question in The Pit with an attitude behind it and expect to be taken seriously!

Copy and paste this link in your browser window:
http://modernmusclecars.net/forums/...isplay.php?f=14

Posted by: shadowboy

i am well aware of what the pit is for.

a CRX is hardly a "modern muscle car" too.

which means it is an off-topic post and belongs in the pit (the off-topic forum).

Posted by: VETTKLR

Go get a Holley Blue and a Holley regulator.

Posted by: No Rice Allowed

Quote:

Originally Posted by shadowboy


	i am well aware of what the pit is for. a CRX is hardly a "modern muscle car" too. which means it is an off-topic post and belongs in the pit (the off-topic forum).

No, it belongs in the General Tech Forum... any questions pertaining to car modifications or repairs in "general!" (General automotive technical discussion)

Bottom line, Mike was only trying to help and didn't need the sarcasm!

Posted by: shadowboy

Quote:

Originally Posted by No Rice Allowed


	No, it belongs in the General Tech Forum... any questions pertaining to car modifications or repairs in "general!" (General automotive technical discussion) Bottom line, Mike was only trying to help and didn't need the sarcasm!

i wasn't giving mike sarcasm, wasn't intending on it at least. i was merely pointing out that i had already thought of that.

if mike wanted to help he should have read my post more carefully. his suggestion was futile because it was refuted in the post he was replying to!

i CLEARLY explained why mike's suggestion wouldn't work in the original post, here, lemme highlight it in bold for you...

Quote:

Originally Posted by shadowboy


	i have reached a point where i have 2 conflicting problems. 1: the integra engine is fuel injected, and the CRX was carbeurated--the line fittings definitely can not handle the pressurized flow of the fuel injected fuel pump. 2: i am short on time, and money, and replacing the whole fuel system of the CRX with that from a fuel injected model will be costly and time-consuming. (nevermind the amount of time i'd have to wait for a suitable donor car to appear in a junkyard, then there is that issue of ripping apart the interior, AND dropping the fuel tank to get the lines out). i also do not wish to use the fuel injected donor's fuel tank because of the weight issue (it's a bigger tank).

if there was any sarcasm in the post it was because mike's suggestion was answered before he suggested it.

i guess that is why i had to spell it out in greater detail later in the replied post.

and in response to the subject matter. i was not asking about repair or maintenance, or anything related to that. i was asking for a PART suggestion (because i don't know as much about the domestic aftermarket as i do the import world), not anything related to modification of the car or installation. i can handle all that my self without any help. for all intensive purposes the fuel pump could be used for an upgrade to an air compressor for all it's worth.

the reason for the technical information was just background information to explain my needs, and to emphasize the "low pressure" point.

Posted by: No Rice Allowed

Funny how you over looked this?

Quote:


	"no shit", i know that's the easiest solution. if i could do that, i would. that is in fact the stock Si setup (Si = the injected 85-87 CRX model).

Just those two words as a reply, can get the whole board after ya....How you respond makes all the difference to someone who might be willing to help ya.....

Quote:


	and in response to the subject matter. i was not asking about repair or maintenance, or anything related to that. i was asking for a PART suggestion (because i don't know as much about the domestic aftermarket as i do the import world), not anything related to modification of the car or installation. i can handle all that my self without any help. for all intensive purposes the fuel pump could be used for an upgrade to an air compressor for all it's worth.

Trust me, the topic would be better suited in the General Tech Forum.....because all these replies that really have no bearing on your question, would be deleted by the moderators.....

Posted by: MikeT

Hmmm, I WAS gonna move this to general tech. Butt, it seems better to leave it here.

Flame away.

Posted by: StoneFox

Carter part # P74019, Theres your serious answer.

Now feel free to go back to slinging shit.

Posted by: bigjhaire

easy fix i think vettklr said it best.......but you dont have to use holly i think purilator has an inexpensive set of fuel pump and regulator....... make sure you use a regulator.

Posted by: IROC_ZO6

go to your local chicano zone and get a puroilator universal electric fuel pump, they have 2 psi ranges for carb applications.

vettklr, holley blue? for fuck sake man hes only feeding 118 hp total, not 118hp per cylinder like you are!

Posted by: VETTKLR

Posted by: skeezix

Silly vetteklr.

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