ok we just installed a high pressure fuel pump and put in 450 cc injectors, now its taking the boost but it runs like crap! its pretty much floding out really bad and it barely runs but when I get up in the rpms when its floored it works awesome. I dont have a management system but people I've talked to who have done the same thing say I dont need it

 

Well there's not much info here but from what I have been reading lately in other post, you dont need to change the fuel pump when you run bigger injectors, all you need is a AFC. but what engine are you running? Right now I have a d15b and I have a FMU and a high pressure fuel pump. There has been a lot of topics in the FI area about this lately, you might want to check around there.

 

so, with no management system there is nothing I can do to let the engine accept the boost?

 

and when it is running good what kind of horsepower and 1/4 mile time should I expect at 8 psi

 

so you put 450cc on a motor with an ecu mapped for 240cc ? hmmm ...

 

I just ordered an fmu, and I put my stock 240cc injectors back in and Its running really good now and the fmu should clear up the rest of my problems,, my set up is a dohc zc thats has no internal work,, I have a jdm si tranny, it has an eclipse turbo and I'm running it between 7-9 pounds,,, just curious what kind of 1/4 mile times and horsepower they usually make?

 

you just wasted your money

should have looked into turboedit

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by grover &raquo;</TD></TR><TR><TD CLASS="quote">I just ordered an fmu, and I put my stock 240cc injectors back in and Its running really good now and the fmu should clear up the rest of my problems,, my set up is a dohc zc thats has no internal work,, I have a jdm si tranny, it has an eclipse turbo and I'm running it between 7-9 pounds,,, just curious what kind of 1/4 mile times and horsepower they usually make?</TD></TR></TABLE>How should we know? 8 seconds y0! Which eclipse turbo are you using?

 

Hmm, from your previous posts, I fear for your motor.