Vortech Installed!!!
Originally Posted by budzara
I beg to disagree. Stock injectors run at almost full duty cycle with the 3.12 pulley, and you'll only be making about 380whp. It's on you if they foul out, but I would never take that risk for 20whp. Also, scaling the SS box is just another thing that could go wrong, and not a good idea, especially with the stock vortech fuel pump. You're just asking for trouble. You're much better off getting a walbro, some 380cc, and a EU.
Speaking of which, someone buy my brand new 380cc injectors!! lol
Speaking of which, someone buy my brand new 380cc injectors!! lol
Rick
Originally Posted by Mr_pharmD
but how safe is running the fmu at such a hi hp? I'm in the process of ditching the fmu and inline pump and just adding 440cc + walbro but no one has been able to give me a straight answer as to if this is possible. Everyone keeps telling to get the aam return fuel line but why is it needed? Do u even use the fuel regulator that comes with the kit or is it all for looks? I wish someone would be up front about the answer.
It's all about fuel pressure and keeping it constant. The regulator is a must to make sure you are getting what you need - so you need a gauge as well to keep it monitored.
A return is great, if you are having line pressure issues to begin with.
If I went Turbo and not SC - the fuel system would have been much different as I would have had to manage large boost at low RPM's and all the way til redline. With SC - your safer on the build and fuel system requirements at our power levels.
Rick
Originally Posted by budzara
I spoke with my installer and tuner, and you can ditch the fmu for a walbro 255, bigger injectors, but u need a new EMU. You'll be good to go for the 3.12 pulley. If you want more whp, you're gonna need a fuel return.
My plan is to get the most out of the kit the way it comes, then change out to the UTEC and see if it makes ANY difference, then the fuel system.
All for R&D for me...
Rick
Originally Posted by budzara
I spoke with my installer and tuner, and you can ditch the fmu for a walbro 255, bigger injectors, but u need a new EMU. You'll be good to go for the 3.12 pulley. If you want more whp, you're gonna need a fuel return.
at wat hp is it needed to get a new fuel line? I'm trying to stay at 400hp without spending 1g on a return line if I dont have to.
My questions is how much hp can u get out of the stock fuel rails if I only upgrade to 440cc + walbro 255?
Last edited by Mr_pharmD; Sep 29, 2006 at 01:02 PM.
Originally Posted by Mr_pharmD
at wat hp is it needed to get a new fuel line? I'm trying to stay at 400hp without spending 1g on a return line if I dont have to.
My questions is how much hp can u get out of the stock fuel rails if I only upgrade to 440cc + walbro 255?
My questions is how much hp can u get out of the stock fuel rails if I only upgrade to 440cc + walbro 255?
Originally Posted by budzara
Dude, I don't want to burst your bubble, but where in the world did you get that 400 number? You said you have the 3.33 pulley and only getting around 6psi or so? I don't care if you have every bolt-on mod in the world, no way in hell are you at 400whp with the 3.33 pulley. Recalibrate your dyno.
The car has heads and cams and transfers power VERY well down the train. The car, in it's current form, before the SC, dyno'd above 300HP to begin with...the car really does rock man. So about 6PSI and 400HP works just fine...
Rick
Originally Posted by Mr_pharmD
what does that mean? get a universal aam fuel pressure regulator to keep the pressure constant at 52psi?
If 52PSI is needed...that's what the tuning will tell you when all is said and done...
Rick
Originally Posted by budzara
Hold on...you're telling me with heads and cams you had 300whp??? umm...
Rick
It's sort of hard to believe especially when built n/a manuals are having a hard time breaking 300hp but anything is possible if he has the funds to back it up.
He was known to have the fastest auto n/a on this forum but that's wat I heard.
He was known to have the fastest auto n/a on this forum but that's wat I heard.
Last edited by Mr_pharmD; Sep 29, 2006 at 01:18 PM.
hey, not to be too off topic or anything but how has your fuel economy (in local and cruising on the freeway) changed since going vortech? i know nobody does these things who really cares about fuel economy but i am just curious.
Originally Posted by Alan
hey, not to be too off topic or anything but how has your fuel economy (in local and cruising on the freeway) changed since going vortech? i know nobody does these things who really cares about fuel economy but i am just curious.
Photographer
Joined: Nov 2002
Posts: 5,050
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From: St.Pete, FL
What is the advantage of a fuel return line?
Does it allow a high power/pressure fuel pump to flow a constant amount of gas all the time and just return what is not used by the engine to the tank? So it would eliminate any lag waiting for a normal pump to increase flow?
Does it allow a high power/pressure fuel pump to flow a constant amount of gas all the time and just return what is not used by the engine to the tank? So it would eliminate any lag waiting for a normal pump to increase flow?
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