Originally Posted by stallion8797
Well I've decided to do this in stages that will be both time and cost effective.
My first stage involves modifying the fuel system and fuel rails. We are looking at possibly using the stock rails and fabbing something off of that, or if not just making entirely new rails. Because the system is returnless, that also has to be dealt with. So all the hoses and mods to the tank will take place at that time as well.
Once that is finished we will install a standalone EMS to help with the tuning. We're looking at AEM or Greddy.
The total cost for the preliminary work looks like $3,500 - $4,500 depending on what has to be modified.
ok first the fuel rails have a test port that you can use a $2 schrader tool to remove the valve from to give yourself a 4AN return line fitting ... then some $40 dollars in AN fittings, bulkhead, and stainless steel braided line and you can create a nice return line that drains into the filler neck line (safest place) ... no need for new rails at all...
second if you are doing a return system i am assuming you are doing a rising variable rate pressure regulator which would mean you do not need a EMS... if you are doing a EMS then you do not need a return system cause you can modulate pulse width directly... only reason you would need both is if you intend to run a huge amount of boost (20+ psi) in which case you would want a 1:1 pressure regulator to raise the fuel pressure by1 psi per 1 psi of boost pressure so that you do not run out of injector duty cycle due to the reduced pump efficiency caused by the boost counter acting the fuel pressure...
third, there is no reason to run that much boost for 300 - 400 hp so long as your turbo is sized correctly...
so why are you looking to spend this much on useless things for the setup ? this system can be complete for under $2,000 in parts for a 300 hp kit... (not counting labor) ...and i do mean a fully functional kit. i've done it before, twice for my own cars, and for less.