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aftemarket fuel rail help

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Post  robinsonj1 21/07/11, 11:38 am

i sent my standard fuel rail off to jenvey dynamics for them to make me a stronger one
have had to send it back twice n then i got it agen it wernt right agen because the o rings wernt the right side but got some my self anyway


connected it all up today but it just doesnt seem to want to stay runnning
it isnt as thick as the original standard fuel rail but told this woudnt make any problems

also told by them i wouldnt need the small air hose connecting to it as i cud just put a bung in and it will run fine
u can tell it wants to run but doesnt seem too ,
the faster i push the accelerator pedal the more it wants to start up, like its being starved?

baffled?
anyone had an aftermarket fuel rail b4?
any adjustments needed to it,
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Post  Gedis 21/07/11, 12:50 pm

is the pressure regulator still on the fuel rail or did they remove it? if they did i bet that would be the problem

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Post  Almondo74 21/07/11, 06:56 pm

as gedis said if they removed the pressure regulator on the fuel rail u will need an adjustable fuel pressure regulator
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Post  STEVEGTI 21/07/11, 07:33 pm

you can buy fuel rails off the shelf ?? show us some pics


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Post  jesseswiftgti 21/07/11, 11:09 pm

i got a nice mk1 fuel rail Smile
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Post  robinsonj1 25/07/11, 02:52 pm

aftemarket fuel rail help Dsc00010

aftemarket fuel rail help Dsc00012

the little rubber tube i have my finger on comes from the inlet manifold under the solenoid vavle thing and onto the fiel rail, is this what you mean????
it is also just a hollow tube with a metal connector either end
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Post  STEVEGTI 25/07/11, 03:24 pm

that pipe should go to the fuel pressure regulator were ever it is now ?



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Post  Gedis 25/07/11, 03:34 pm

doesn't look like there is one to me, is there anything connected to the other end of the fuel rail or is it just a hose that's connected to the fuel return pipe? if so, you need a fuel pressure regulator Smile

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Post  robinsonj1 25/07/11, 04:17 pm

does anyone have one of these for sale????
il fone the company back n see wot they say
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Post  STEVEGTI 25/07/11, 04:34 pm

http://www.ebay.co.uk/itm/SARD-fuel-pressure-adjustable-regulator-BLUE-GAUGE-/160623103633?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2565e20e91


this is what you need dont go for the cheaper ones your car wont run right at all without a fpr this is fitted inline with the return side of the fuel rail set base rail pressure to 36psi with stock throttle body or 40psi with 55mm or larger


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Post  robinsonj1 25/07/11, 09:37 pm

is this all i will need???
dont no wot to do you see
has anyone used one of these before????
there is a few cheaper on ebay but i dont know
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Post  Almondo74 25/07/11, 09:45 pm

that is all u need as steve said.
uv removed to standard fuel pressue regulator and it needs to be replaced.
y wud fuel want to go into ur injectors when its got an easy straight path back to the tank...
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Post  robinsonj1 25/07/11, 09:55 pm

i dunno it mite get lonely lol
i no i ment this actual fuel pressure regulator, ive not seen them in action but ive read the spec and that just wonderin wether the item have everything u need to fit, no more connectors and that

another question i have is

does it matter which end i put the inlet an return pipes on
i.e the fuel having longer to travel????

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Post  Almondo74 25/07/11, 10:15 pm

the flow and return pipes are different sizes i believe. i would imagine without looking that the largest wud be the flow from the pump and the small the return to the tank.

regarding fittings it all depends wot fittings ur fuel rails got and wot comes with the afpr, buy the reg then see wot fittings u need tbh. sard are ment to be the dogs bollocks...
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Post  STEVEGTI 25/07/11, 10:45 pm

i wouldent use anything execpt sard or aeromotive the cheap ones are shit steer well clear unless you want a fire Very Happy buy the regulator then you will prob need a lil reducer on the last fuel line as the one going onto regulaotr will be bigger than gti return line use push and jubilee clip connections dont go reying to make dash fittings if you dont know what your doing

and make sure its fuel line not water or oil has to be for petral will have it written on it

steve

the diagram shows how fuel circuit is

aftemarket fuel rail help Fpr

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Post  robinsonj1 26/07/11, 01:58 pm

the company have emailed me back and said they have sent me a webber afpr free of charge
i presume this will be a cheap one?

i have took your advice anyway and bought one of the SARD ones

also as your a lookin into the engine bay (air filter on left n battery on the right) which is the return and inlet pipes and does it matter which end of the aftermarket rail they go on, i know obviosuly the reulator will have to be fitted right but just wondering the above
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Post  STEVEGTI 26/07/11, 03:20 pm

return line can be either but take it from the left side the return is the smaller of the 2 metal pipes on the bulkhead


so

metal bulk head to right side of rail

left side of rail to side of fpr

bottom of fpr to small metal line on bulk head

thats it

and the little vacum line off the inlet to fpr

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Post  STEVEGTI 26/07/11, 03:23 pm

and weber aint bad if its a adjustable one

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Post  robinsonj1 29/07/11, 06:03 pm

im a bit confused mate which doesnt take much lol
no instructions in the box which it said it had

right here goes lol

left small fuel line on bulkhead is the return
right larger fuel line on bulkhead is the inlet
got that part right?

the inlet goes to the left side of the fuel rail
the return goes to the right side of the fuel rail

fpr has a little nipple on the top in the shape of an upside down letter L
presume that the little air hose from the inlet?????

unsure which two lines go on the fpr
theres one directly on the bottom????
and one on the side at the front the of the fpr????

also a little alan key type black bolt on side to the left of the front one???

also how do u adjust it ,with the alan key thing???


if you can answer these questions point by point i will apreciate it,
sorry for being a pain in the ass


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Post  STEVEGTI 29/07/11, 10:45 pm

put up some pictures ill tell you its very simple mate

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Post  dominator 30/07/11, 03:37 pm

have you got a pressure gauge?

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Post  robinsonj1 30/07/11, 05:59 pm

yes i have a pressure gauge
aftemarket fuel rail help Dsc00013

just unsure which hose goes into which an how to adjust it

i have the gauge aswell


sorry for bein a pain in the ass lol

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Post  STEVEGTI 30/07/11, 06:16 pm

the guage screws in were ever it will fit on the fpr the rest goes like this cant go wrong really well most wouldent


the fpr just sits inline with the return line of the fiel rail



aftemarket fuel rail help IMG-20110730-00005

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Post  Almondo74 30/07/11, 06:40 pm

nice fuel lines steve Razz
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Post  STEVEGTI 30/07/11, 07:22 pm

lool it adds flare Very Happy

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