Feul pumps

[jvs007]

jus found today sum info on pumps, most ppl mite know this already but for the ones that dont, found out that bosch 910 and 044 are externally mounted pumps and the 040 is internal. i am not sure which one to go 4 and was hoping to see what others had installed.

can ppl with aftermarket pumps plz post up what they have and how its running.

[slayer_1971]

I was told that the 910 can be mounted either Internal or external

[JimX]

Any of them can be mounted internally. Just that the 040 was designed to be mounted internally. But the others work fine internally too.

[jvs007]

dude, i have seen a 910 infront of me today, it doesnt have sealed wires on the fly. all it has is a M4 and M5 bolt on top it for +ve and -ve, which means it cud short out wen u fill the tank up and boom!

i called up powerflow injection in Victoria and the guy said 910 and 044 are external and 040 and the 500hp walbro pump is internal. he aslo said u cant put the original sock from standard pump to the 040 cauz it already has a metal mesh on it.

he was saying to mount the 910 externally near the chassis and the hav the standard pump feeding it ????

duznt add up thats why i am keen to see other ppl installs, plz reply bak

thanx

[JimX]

JVS007, I think you need to do more research. I've got an 044 mounted internally in my tank with terminals exposed. What made you think fuel conducts electricity? And just because the pumps have internal mesh does not mean you don't have to put the pickup back on. If you don't it will be sucking fuel from halfway up the tank. Do you feel like refilling your tank when it gets to half full? And getting surge whenever you go around a corner.

[slayer_1971]

Well...I'm booked in tomorrow to have a 910 installed (internally) so i'll let you know how it goes

[Fitzpatrick Speed Works]

i have two 910s externally mounted and the stock gtr pump feeds the surge tanks then i have a seperate line for each pump, works well i agree and so do the guys that sell the pumps they are meant to be externall however you can use them internally.. i ll post pics when i get the car back!!

[jvs007]

JimX - i am only repeating what i have been told, as said b4 it duznt add up in my opinion. Hence why i put the post up, i jus wanna see working examples from other peoples cars, that my best chance of getting answers.

i have done my research but when u get big name companies (BD4's, Croyden, Powerflow, Unique) saying they are rite and the other companies are wrong then who do u beleive ???

[JimX]

The guy from Powerflow sounds like an idiot. And it's pretty common knowledge that the 044 can be mounted internally. I doubt that ALL of those shops would tell you it couldn't be mounted internally. If they thought that then they should come and have a look at my pump install and at least half a dozen other SAU cars.

Edit: Just for the record, I do not know if the factory sock will fit on the 040 pump or not. But for the reason given, that the pump already has a mesh, makes it stupid. My 044 also has an internal mesh, but the sock fits on with a couple of adapters and no problems.

[jvs007]

jus pulled out the pump in my car 2day, and guess wat i found....it has bare lug terminals on the pump and up on the top mounted plate there is 4 wires which are soldered onto solder tabs. i guess if the factory wasnt worried about exposed terminals inside the tank then why should i.

i shud have checked this in the first place, rather then calling around which got me more confused.

[camandcandice]

Bosch recomends that their external pumps should only be fitted externally as this is what they were designed for mounting them internally will shorten there life span.

I am using an 040 without a filter sock as the pump comes standard with a huge mesh filter the same size as the pump its self on the bottom.

[ABuSD]

Any1 got a price on these suckers?

[gtstii]

I did a lot of research arecently on pumps and agree with what you were told as everyone said the same to me - read this

http://www.skylinesaustralia.com/forums/sh...ead.php?t=31143

[[ant]]

in my S13 silvia i had an 040 mounted in the tank as its meant to be and had no problems with it. it was the one with the mesh on the bottom. you cant fit the strainer coz the pump has the mesh on the bottom. it would suck fuel from even on Empty. however, try to bust donuts to the left when the tank is below half way and obviously it surges and cuts ur engine (haha then u look stupid). but as far as normal driving at low fuel levels its okay. to combat this u could mount it lower in the tank. i mounted mine at the same height as the original (cut the bottom of the bracket off and clamped it into the same position).

i now have DR30 so this comes with a factory external pump which i replaced with a bosch 910. downside of the 910 is it doesnt have a stop valve, and since i dont have a factory intank pump, i have no pump to pump fuel to the 910, so i need to let it prime for a while with key turned to accesory position, before trying to crank it over. also if left in hot sun it sometimes takes a bit longer as theres fuel vapours in the lines.

but for all you other later skyline owners this wouldnt be a problem anyway haha

[jvs007]

gtstii - thanx for the link, helps alot, i called up bosch 2day and they said the same thing. there is only 2 pumps they recommend for internal. 040 and 023.

now i have alot of info but dont know which way to go. a 910 is sitting in my bedroom and not sure to mount it internal and take the risk of short life span or external.........decisions decisions

ppl with 910 installed intank, pleaz speak out and let us know how its going and the age of the pump.

[predator]

well i guess the 910 I put in my tank 6 months ago is going to blow up anyday now.. funny because its been working fine.. no point going overkill. The 910 should be good for 270rwkw (450hp = 335kw = ~ 268rwkw)

[GTRgeoff]

Just to clarify for you all in case anyone is worried - inside a fuel tank where the fuel/air mix is extremely rich ther is no chance of a short causing a fire. Petrol needs oxygen to burn, and it needs it in the correct ratio. You could throw a burning match in a puddle of petrol, or better yet, a bucket half full and no boom.

They repair fuel storage tanks by welding them internally when full of fuel. Diver wears a special suit and uses special welding rig.

[ylwgtr2]

back in the motorcycle repair days we used to empty the tanks and feed a pipe of carbon dioxide in them and spot on the easybeat or weld them up....if we ran out of gas we would run an exhaust pipe from a running car into it

[MacGuyver]

So the Bosch 040 doesn't need a sock on it at all then? I installed one myself internally on the weekend. I saw that it had mesh on the bottom so didn't think it would need a sock. It's been working fine, no noise or problems up until this morning when I was driving to work and noticed that my car would sometimes make a 'reverberating' sound when it would come on boost. (sounded pretty cool actually, kind of like a WRX!) This may be cause I haven't tightened up all of the hoses properly.... or the ball point pen that we stuffed into one of the hoses (to stop petrol gushing everywhere) didn't all come out. It snapped off inside the line and then the remaining shards dissolved into a glue like substance. I was sure I got it all out tho!

"Five days on an all sprout diet with a wall papering video and a crochet magazine and we've all turned into crazies!"