I need a little help with what and where to get a few things. I'm attempting to put a eaton SC from a mercedes in my 04 0-z and have about everything figured out but the fuel system and where to get the cheapest piping done.

The only way that I have been told to do the fuel system is by running an inline fuel pump (walbro 255) and a Digital FMU because the 04 is returnless. I was reading up on the 04 lancer turbo project and noticed that He went with additional injectors but was hoping to avoid this with the digital fmu setup.

I am wondering if this is possible, and if the stock injectors would work for 4-6 psi.

I am also wondering if there are any more options then Aeromotive for the digital FMU because its fairly expensive.

I also need some help on where in So Cal to get piping done.

Also any other advise on this project would be greatly apreciated.

 

stock injectors should be more than enough for 4-6 psi. i see that you have the RRM piggyback, you may want to see about taking that off becuase it may very well screw up things with the supercharger.

 

If you are going FI, dont cut corners. Back off until you have the money to do it right. You will love yourself in the end, if you do.

 

http://www.rceng.com/technical.htm#WORKSHEET

Injector flowrate from RC Engineering. If people believe the formula is wrong, go email them about it.

 

if you want you can give Ross a call at Rippmods and tell them what your doing. he can probably sell you some parts and give you some pointers on ur custom sc kit.

 

If you look at how the 02-03 Lancer Turbo kits work, or any other return style car for that matter you'll see that you're having to increase fuel pressure back into the rail whereas with the returnless systems all the fuel flowing into the rail has to exit through the injectors instead of being able to loop back to the tank if not needed. If you can increase the pressure going into the rail (inline pump) enough to supply the amount of boost you're running you should be fine. I think the stock pump might pump somewhere around 90-100psi at full volume, but don't take my word on it. (I wouldn't go above 4-5psi until there are more products for returnless systems though.)

Before I put the MSD inline pump in I tried a Walbro High-Pressure 255lph in-tank pump and it worked fine on 5 pounds except it was slaughtering my gas mileage.

Boe told me that it might be possible to have the RRM piggyback control maybe a 190lph intank pump, but I don't know. It still seems that it would pump way too much gas.

 

Thanks for the input guys you've brought up a few more questions.

First I went to this website to find out how to route returnless fuel systems http://home.earthlink.net/~micfly/returnless.htm its helping a lot. With only 4-6 psi would the Walbro 255 be a bit overkill and if so whats a good pump. Also Im not trying to cheap out on the fuel system I just don't want to buy the aeromotive DFMU and find out some other reputable company makes a similar product for half the cost.

Also with rrm piggyback I thought it was able to run a turbo set up. If it is shuldn't it be able to run a SC because after the throttlebody boost is all the same to the engine if it comes from a turbo or a SC psi is psi right?

 

If you got a Normally aspirated piggyback, Then you actually leaned out your fuel mixture alittle and your ignition timing is a bit to aggressive. With boost this is a disaster. I remember them saying you can send it back and have it retuned for Forced induction. That will do 1/3 rd of your fuel issue.

 

nevermind

 

Well guys I just put up a want ad for an Aeromotive DFMU last night I think this will be the best way to go. If any of you know where I can find one for the best price or have one you want to get rid of I'm ready to buy.