a crazzy dual fuel system

[cummins king]

a crazzy dual fuel system
1/2 inch line pick up
1/2 inch line to a TEE
1/2 inch line to piston pump
1/2 inch line to filter
1/2 inch line to ve pump
BACK TO TEE
1/2 inch line to AEROMOTIVE filter
1/2 inch line to AEROMOTIVE Billet Belt Driven Pump, P/N 11105 (good for 2 to 200psi)
1/2 inch line to Ultra-High Flow Adjustable EFI Regulator, P/N 13113 (adjustable from 40 to 100psi)- lwith line going back to tank
1/2 inch line to check valve
1/2 inch line to shot off silinoied hole

if you guys see anyhting wrong with this let me know, i can get these parts cheap

[ford69557ci]

basicly what i had planned on doing but with 3/4 line and no piston pump i will either be runnin dual electric or a belt and an electric

[cummins king]

i dont think it really matters if you have an electric or piston pump because you can only put 20psi to the front of the pump, any more any you blow a seal unless you put a retaner in, i think KTA did that
as for 3/4 lines WOW you probaly will never us the volume of 1/2 lines

[Underpsi]

pretty sure the front seal actually sees more then 20psi. Think it sees case psi doesn't it?

[cummins king]

i can already see two possable problems with ts set up
first-were am i going to mount the belt pump, its dark out so i will check tomorrow
second-the pump is alwas going to put pressure ut even at idle, wont thank be a problem, i gess it would go through the regulator and back to the tank, so if the regulator is made to kick in at any where between 40 psi to 100psi whats going to happen when the belt pump makes more, its good to 200psi, whats the max pressure the ve pump can hold with out grenading, wasn't sombody going to find out.

[DTanklage]

why are you so set on feeding in thru the shut off solenoid hole?

i would just cram it in thru what used to be the return

that way you will be getting rid of that small (.018") orfice at the top

that orfice bleeds off a little bit of pressure

i say you do away with that (like brian did) and use it for an inlet

BUT - unless your external pump is making more than the internal rotary vane pump is producing - you truck wont know it is there

that is why i kept saying - "you guys need to install a CASE PRESSURE GAUGE"

once you know what case pressure is (at X throttle and X rpm) then you will have a number to shoot for

and any pumps pressure is inversly related to demand

so it would be good to figure out how much fuel (gals/min) the whole system requires

(including the fuel that goes back to the tank by way of the return lines coming off the injectors)

don

[boostedve]

so don your sayin that the ve doesnt need a return.

and could ther ever be enough fuel press.

from what i have read sounds like they dont make a pump big enough..

rick

[THE TANK1]

the return from the injectors would feed back to the tank. Hey boostedve is your truck white, (pull at the ELKS)

[DTanklage]

i am pretty sure the only purpose of the return on the ve is to bleed air out of the thing

i guess it would knock the pressure down a few pounds too and possibly 'cool' the pump but i kinda doubt that part

what is 'enough' case pressure?

that is the question

there are mechanical pumps out there that could pop the ve like a rubber balloon

[cummins king]

okay mr DT since your so smart lets pick ur brain
if i feed it into the shut off silinoved hole of the return it wont mater the your putting it in the same place just difrent holes
im converting my pump top toone off a tractor (cleaner, easyer axes) so that whole will be very easy to axes but were would i put a gage, and what type of pressure should i be expecting
and if you can feed it trough that hole to then y cant you do triple feed or is there no point

[ford69557ci]

i dont think case pressure is as high as head pressuer at the shut off. if i ever get my camplate in then i will start with all sorts of testing and will answer most of the questions and maybe grenade a pump hopefully that will be on video

[DTanklage]

neither do i aaron, that is why i suggest entering it at the top

may not make any diff

and we still dont know for sure how output will be affected by high case pressures

i have an idea tho

what makes you think i am 'so smart' ?

last time i had my iq tested i was barely above avg

i was under 110

and 70 is retarded

don

[DTanklage]

ps - the only reason you would need 3 inlets would be if you couldnt get the pressure you wanted with one psycho pump and were gonna run two...

[Underpsi]

Im pretty sure Swank has a case pressure gauge but I don't think he tunes in here too often. Kta would know pretty sure Swank did the testing for him as well since everyone was curious as to the pressures

[cummins king]

isnt putting the second line into the out the same as if u put it into the stock in or am i mistaking,