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Old 03-29-2004
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quick fuel system Question

i could not find a clear answer in the search, seemed to be difference in opinion--is it absolutely necessary to get an E-manage system(or something like it) or do a fuel return line when building a custom turbo setup? can i just get new injectors?
Old 03-29-2004
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either way, if you replace the injectors you will need to modify your fuel rail to fit them.

an emanage, with return, and larger injectors would be the best way to go. you need a shop to modify your fuel rail to allow for longer than stock injectors.
Old 03-30-2004
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but, if all i do is replace injectors, no return line, emanage or any of that, will i be restricted to just a couple pounds of boost?
Old 03-30-2004
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If you want bigger injectors, it's not as simple as just "replacing them". There are still no for sure answers about what injectors will be direct replacements on our cars. Some that have been suggested however are the Si (EP3) injectors, which are about 300+ cc's and then there are the STi injectors which are 500+ cc's. With 500cc's you'll need a system that can trim the fuel down enough to get you to idle properly.

And no, the emanage is not absolutely necessary. Most people that use it use it because of the timing retard option. These are usually people that have opted not to go with the alcohol injection system.

DO a little more research and you'll be able to decide. But neither the return conversion, nor the e-manage are absolutely necessary. There are other options.
Old 03-30-2004
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speedracerchk you own lol...

she's 100% correct. Im switchin from the VAFC2 to the emanage because of the ignition option alone lol
Old 03-30-2004
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would a moded fuel rail and injectors be all i need to deliver the right amount of fuel. i want to run like 8 lbs boost.
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if your looking to do all that for 8lbs of boost just save yourself the trouble and buy the SF fuel system seperate... it's tuned for up to 12psi on stock injectors.

8psi is a walk in the park for that thing, and it takes about 20 min to install
Old 03-30-2004
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I'd be curious to know what the fuel pressure going into the injectors is at 8 PSI on that kit.....remember, the higher the boost, the more psi you will need in the FMU.....high fuel pressures are not uncommon in a setup like this, and the stock pump / injectors / seals are going to complain eventually....just some advice....
Old 03-30-2004
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Originally posted by maiden4ever
would a moded fuel rail and injectors be all i need to deliver the right amount of fuel. i want to run like 8 lbs boost.
I'd recommend some type of fuel management. Like an AFC, an FMU, a stand alone, or an e-manage.
Old 03-30-2004
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thanks, whats the cheapest?
Old 03-30-2004
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prob an safc2 would be the cheapes
Old 03-30-2004
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aight thanks, ive just decided to boost in the last few days, been doin a lot of research. this should help.
Old 03-31-2004
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oh one more question. if i try to boost before i get the fuel system, and just run a few psi until i can afford a vascII of safcII, can the plastic intake manifold handle it?
Old 03-31-2004
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Originally posted by SpdRcrChk
I'd recommend some type of fuel management. Like an AFC, an FMU, a stand alone, or an e-manage.

AEM's EMS is out for our cars...
http://www.coximport.com/store/30-1030
http://www.coximport.com/aem/emsapps.html

IM VERY TEMPTED. imp:
Old 03-31-2004
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Originally posted by OsOBooSTeD
AEM's EMS is out for our cars...
http://www.coximport.com/store/30-1030
http://www.coximport.com/aem/emsapps.html

IM VERY TEMPTED. imp:
Don't mean to sink your dingy man - but:

http://www.aempower.com/product_ems_app.asp

Coximport has had that damn thing listed forever....they also list the fuel rail that AEM is never going to make for us either.....jerks...
Old 03-31-2004
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Originally posted by opto_isolator
Don't mean to sink your dingy man - but:

http://www.aempower.com/product_ems_app.asp

Coximport has had that damn thing listed forever....they also list the fuel rail that AEM is never going to make for us either.....jerks...

ok .. well hate to BURST YOU BUBBLE but it is OUT and has been OUT. the rail. i have no idea about .. but the EMS is out.
Old 03-31-2004
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Have you called AEM? Not trying to be an @ss, just wondering if this changed....I really don't think its out yet, but I could be wrong.

Update:

http://forum.aempower.com/bbs/viewto...ghlight=301030

According to their engineers....not out yet

Last edited by opto_isolator; 03-31-2004 at 03:45 PM.
Old 03-31-2004
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Originally posted by opto_isolator
Have you called AEM? Not trying to be an @ss, just wondering if this changed....I really don't think its out yet, but I could be wrong.

Update:

http://forum.aempower.com/bbs/viewto...ghlight=301030

According to their engineers....not out yet

i duno my local shop called AEM directly cause their an authorized dealer or some CRAP.. but they said they have it , ready to ship. this was as of last week. so i duno.
Old 03-31-2004
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i think i am going with vafcII, and i read on this site that old passat injectors are 330 cc and fit in our rails with slight modification. anyone of you got vafcII, did you get it tuned at a shop and how much did it cost to have it tuned.
Old 03-31-2004
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Originally posted by maiden4ever
i think i am going with vafcII, and i read on this site that old passat injectors are 330 cc and fit in our rails with slight modification. anyone of you got vafcII, did you get it tuned at a shop and how much did it cost to have it tuned.

u SHOW ME THOSE INJECTORS in our car - with modification that can be done by ne one . not a shop.
Old 03-31-2004
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Originally posted by OsOBooSTeD
u SHOW ME THOSE INJECTORS in our car - with modification that can be done by ne one . not a shop.
Old 03-31-2004
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i didnt say i was positive, i said i read it somewhere.
Old 03-31-2004
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search for passat injectors and go to the thread started by that says HTOWNBOY . "if your looking for bigger injectors..."
Old 03-31-2004
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Has anyone seen the Aeromotive DFMU? I think I might end up using this. From what I've read, it's really easy to program.
Old 03-31-2004
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Originally posted by OsOBooSTeD
u SHOW ME THOSE INJECTORS in our car - with modification that can be done by ne one . not a shop.
H-townboy has been buisy at SpeedFetish. I have seen his car. he is running the passat injectors and fuel rail.. He just had to put a spacer in to modify the fuel rail to fit.

A spacer can fix anything.

He is running a SAFC2 to adjust the fuel alittle. He is running a Vortec FMU on stock retrunless system. He is pushing 7-8psi and running good.

He posted a instruction in a past thread. Just do a search.

PM him directly or do a search for speedfetish in Houston and call him up.
Old 03-31-2004
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i will sell you my sf fuel setup...let me know if you are interested or just pm me
Old 03-31-2004
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Originally posted by opto_isolator
Have you called AEM? Not trying to be an @ss, just wondering if this changed....I really don't think its out yet, but I could be wrong.

Update:

http://forum.aempower.com/bbs/viewto...ghlight=301030

According to their engineers....not out yet
Gawd if it was out i wouldnt have ANY tax money left!
Old 03-31-2004
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so the injectors do work?
Old 03-31-2004
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Yes. You will run rich untill you tune, but yes the passat injectors w/ passat fuel rail works.
Old 03-31-2004
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Originally posted by maiden4ever
oh one more question. if i try to boost before i get the fuel system, and just run a few psi until i can afford a vascII of safcII, can the plastic intake manifold handle it?

Torque King ran 14psi on stock SF kit and running pure methanol. No issues no blown head gasket. No rods thrown like baseball bats. The plastic is actually a good idea it does not get heat soaked and heat up incoming air. maybe not good for boost. But for the stock engine it is a good idea.


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