stock fuel pump limit
 

im sure this has been covered many times but searchign this site sucks.

when should i upgrade my 96 civic lx fuel pump? lookin to make around 240whp

Re: stock fuel pump limit
 

Youll be pushing it to the tits on stock wiring with the stock pump

I seen a guy toss in an evo8 pump cause there pretty cheap almost new when the evo guys swap em out, maybe $30

Or you can set yourself just fine for 500whp and grab a 255lph xenocron pump for like 80 bucks

Re: stock fuel pump limit
 

well it depends on what kind of management your using and what cc injectors i guess. my stock fuel pump on my mazda protege which is about the same as a civic maxed out at 60-65 psi

Re: stock fuel pump limit
 

i'd be using a chipped ecu and 450's

Re: stock fuel pump limit
 

$70 xenocron pump, dont ---- around with cheap insurance

Re: stock fuel pump limit
 

I used a evo 8 fuel pump and it was great. I wouldent push it. Why bother. They are so cheap! Your ---- deserves to blow up if you dont upgrade.

Re: stock fuel pump limit
 

whaTs involved in putting a evo pump in a civic?

Re: stock fuel pump limit
 

Its just a bit longer. Basically the same ---- though. If you have ever replaced one its pretty much the same ---- in all honesty.

Re: stock fuel pump limit
 

if i was going to buy someones used evo 8 pump what parts would i want to make sure to get with it? thanks apprciate it.

Re: stock fuel pump limit
 

Bro its almost exactly the same ----. Anything that you would get from a regular honda fuel pump you want with the evo pump. Dont over think it. You will see what I mean if and when you get one.

Re: stock fuel pump limit
 

i never changed a pump thats all and i found a evo one for $40 low miles

Re: stock fuel pump limit
 

I kinda figured that dont worry. Get it asap. You wont be dissapointed. ------- easy on hondas. Typically a 20 minute job. For you, a hour. :)

Re: stock fuel pump limit
 

sounds about right

Re: stock fuel pump limit
 

once you get the assembly out, theres usually 2 wires, a sock, the line for the fuel and maybe a return you have to ---- with. zip tie that ---- where it won't fall off, and as haynes says

installation is opposite of removal

Re: stock fuel pump limit
 

240whp, just rewire the stocker straight from the battery with a relay and some decent wire and spend the 70 dollars saved on beer and hookers.

Re: stock fuel pump limit
 

well i have a bigger engine but im using a 255LPH (600hp) walbro pump (gss341) with 570cc seimens injectors, stock fuel pump shouldnt really be pushed, but it can be used up untill like 8psi (depends on car)

what ive learnt is, when you start boosting, things go wrong... what would you rather replace, injectors? or the headgaskets/engine every few months from it leaning out and detonating!

i paid $120 AUD for my fuel pump new incl delivery (ummmmm like $80 usd?)
and $400 AUD for my injectors (new)

probbly set to purchase a rising rate fuel reg later aswell despite running a 2 bar map sensor + retuned ecu...

bottom line, when you push the pump... expect failure

Re: stock fuel pump limit
 

watch out usin those 255's on stock regulators, i've had problems with super high fuel pressure due to the regualtor not having enough return flow, it's easy to remedy with the stock regulator, or if you plan on changin it

Re: stock fuel pump limit
 

so should i just use the stock wire with the evo pump then?

Re: stock fuel pump limit
 

yes. there are just 2 wires. power and ground. e z money.

Re: stock fuel pump limit
 

what the ---- is this ----? I don't post much but I can see that this forum has become a shame in comparison to when I used to run it.

There is a frequent poster asking for help and for the most part a bunch of noobs chime in. Yes certain variables will work that have been suggested (DSM parts).. BUT what is neglected here is the free mods. You guys should hope that Mr Bone posts again or maybe someone shares a writeup for stock hardware with simple boost.

Rewiring a stock or upgraded part is essential when you're looking to exceed the natural limitations. The DSM crowd knows this and so does are high HP fetching members like Ross. Can the rest of you learn from this?

I own a new xenocron pump (which is actually for sale for cheap) but the focus should be on basic mods done to our cars for simple boost - simply because I have a few spare pumps ready to install.

I'm done with the thread, I hope it snowballs from here.

Re: stock fuel pump limit
 

alrighty.. welp.. all im askin is if my stock fuel pump wiring is sufficient for the above hp goal with the evo pump. id have just rewired mine probly but the car itself has some unknown miles over 155k and this pump was $25..

Re: stock fuel pump limit
 

Good job man! Cant wait to do my most recent honda. The fuel pump ------- sucks on it.

Re: stock fuel pump limit
 

My stock fuel pump maxes out at around 6 psi with *L* of all things a stock evo8 turbo. that I love totally worth the mods to make it work. and 510cc injectors. so i'm only running 4 psi right now until I get my new pump in. And I have a few other issues I'm working out before I up the boost to 10psi.

I got a xenocron pump as well. I can't wait for my Ostrich to get here.

Re: stock fuel pump limit
 

I'll pretty much repeat on what Quadnie and Minor Threat said...rewire. Have you guys actually seen the stock wiring up close and personal? You'd be lucky if it was a 16/18g wire. 10g wire on a stock pump makes a difference. Hell, I even run a walbro 255lph with a 10g rewire. Just make sure to turn your rail pressure down. ;)

Re: stock fuel pump limit
 

Is there a write up on how to do the rewire anywhere? I would like to do it but I need to learn how to wire a relay. Ive never done it before.

Re: stock fuel pump limit
 

They have diagrams on them. Pretty much you either ground or 12v one set of poles to open/close the other set of poles. Google it if it still makes no sense.

Re: stock fuel pump limit
 

Standard Bosche 30 amp relay...same type used in fog light kits.
http://www.classictruckshop.com/club...osch/relay.htm

Re: stock fuel pump limit
 

yes actually i have seen stock pump wiring.. its very small gauge i belive 18

so i run the new wire to the batt and relay off the old pump wire as the switch ?

Re: stock fuel pump limit
 

Correct.

Re: stock fuel pump limit
 

Damm WTF you are making sure everything is perfect. I respect that. Whats crazy is you will do all this research, upgrade the wiring and the fuel pump, and then when your putting in the new pump you will be smoking a cigarette next to the open tank in car FTW!!!

;D

http://www.insidestunts.com/pics/fireguy.jpg

J/k man, goo yob!

Re: stock fuel pump limit
 

is it cool to throw in the evo pump on my stock ls motor or will i have problems with my stock fpr? cause im bored today but i wont have all my parts collected for another week or 2

ya i have alot of simple questions, never had to mess with the fuel system on my other setups besides injectors

when i re wire it will i have to do anything for my stock fuel pressure?

Re: stock fuel pump limit
 

Yeah buddy its cool. I never ---- with the stock fuel pressure. Now injectors are a different story. Seafoam the bitch before you install the new pump and put in the new injectors, as long as your ecu is set for 450s or whateveer you have.. (well new, used 450's that is. THat way it can clean those. I wouldent want the seafoam touching the new pump though. No particular reason, just because it absolutely doesent need it. Again unless its a used pump, which a evo 8 pump isnt very old if used. Did you kinda get what I said? Just rambling off the top of my head. If it doesent make sense what I said anyone than please step in and correct me.

Re: stock fuel pump limit
 

i was just gona throw the pump in cause im bored and re-wire it later when i get my injectors and the rest of my ---- in a week or so hopefully, just wanted to know if it would still run right

Re: stock fuel pump limit
 

I ran my stock civic fuel pump on my boosted z6 at 10lbs and never had a problem. I only had it for around 2.5-3 months though so I dunno if it would've lasted forever or not...probably not. Sorry to thread jack too but do you guys think that a B16 at 7lbs would be ok for the stock fuel pump? It'll be on a little ass turbo so it wouldn't make to much power...I dunno though

Re: stock fuel pump limit
 

Just throw it in for now on the stock wiring, you should be fine. Only problem that could arrise is if it over runs the stock FPR, and if that happens it'll be mainly just your idle that will be affected for the most part. I don't know what the limits are on the stock honda FPR's, but I doubt an evo pump would over run it. You may even get away with the stock wiring if you're only looking for 240hp. If you need some help putting it in, you know where I live! I've never done it on a civic, but done it in DSM's a bit. I can also help you rewire it if you decide to someday. The relay and wiring should be readily available at Radio Shack or AEI.