help!!! turbo is killing me!, 7afe turbo issues Options

[darkhorse]

ok well.... first off i'm newish here. was on a while back but lost info and kinda stepped away from it all for a while. any-who, finishing up my 7afe turbo build and having minor issues. aka lack of performance.

mind you all its a budget/junkyard build.

96 7afe

list of whats done...

t3/t4
manifold
external waste gate
obx fmu
bov
gm 3bar map
vac and oil lines


just to give a little background i have had my own shop for a while with my sis (who was a frequent on here for a while(had a 7afe show car bagged and all kind of crap done to it candy red paint with airbrushed flames)) and old man. done plenty of turbo systems before and plenty of street tunes but this one is really pushing my buttons. (prob cuz its a build for myself) but a simple build has been a nightmare so far.
long story short......


1 water pump killed motor

2 junkyard motor swapped turbo kit added

3 head gasket bad rods bad turbo shot (should have looked better at it)

4 no car for work week 1

5 no work on car raining! week two

6 2nd junkyard motor 2nd turbo re-fab manifold/header for turbo. works ish...

7 fmu is not rising rate so tuning does not do s....! and horrific breaking up at boost.

8 breaking up solved with plug gap (don't trust pre gap plugs) still no power more than factory

9 fmu swapped out with correct one better vac to 0 range (not flooding) stumbles at 0 to 2 psi and 2 to 7 has factory performance.

10 stumped!!! i have read that factory fuel pump and injectors are ok to the 5 to 7 range. pressure and vac tested piping. waste gate fully functional. bov fully functional. piping removed car runs perfect. turbo spooling perfect (from sound and response) cant adjust timing (spent three hours swapping dizzy guts into a different dizzy housing with the adjustable bolt hole.... didn't do a d.... thing) i have researched posts here from oobe and hurley (prob misspelled) and i didn't notice my issue anywhere anyone have any ideas??? before my wife shoots me???




help!!!!!

[Bitter]

So you have no kind of engine management other than the stock PCM? And you're wondering why you have driveability issues?

[darkhorse]

So you have no kind of engine management other than the stock PCM? And you're wondering why you have driveability issues?

as far as.....

never had to do full electronics on any other vehicle i was merely asking for a few ideas not arrogance and yes factory ecu with the 3 bar map and from everything i have read so far that should be a start point with functionality. i honestly don't have a lot to spend on this project just trying to find a few ideas on why this particular one is being stubborn. if you don't have any advise that's cool. let someone else comment.

thanks