i just finished my turbo install on my hatch i have a 1990 civic si witha b16 and an air researh t-4 setup i have a greddy profec a an apex-i v-afc and an chipped ecu i put in an msd 6btm with the msd cap and blaster 2 coil now for my problem. my car runs fine all through vacum and when it starts to make boost when i hit 5 psi it wants to shut off till its gets down to a lower boost level i checked my msd setup and its all ok my check valves are working becauise my v-afc isnt reading boost it shows 0.00 at full throttle when it makes boost . the only thing i can come up with is the stock injectors cant handle the boost even though i have a vortech fmu and a walbro 255lph intank. i get my eclipse 450's on thursday so im going to try the v-afc hack but if that dosnt work i dont know what the hell to do any sugestions ? any help woulb be kewl thanks

 

1st, ditch the chipped ECM, too much timing advance for the turbo. 2nd, it's cutting out because you aren't getting enough fuel.

 

ok what ecu should i use though i have one that i got with my swap i has a b16 profile in it and the rev limit is set to 9k if that dosnt work should i just get a pr3 or what?

 

Not enough fuel . . .

 

how much more you wanna boost on stock injectors???

defintiely have to ditch the ECU for a stocker. pr3 will work. do youhave an EGT or air/fuel gauge for estimations on fuel delivery???

also why would you ditch the inlinie for an in-tank

when you do swap the 450's remember to change the disc in the fmu to a 4:1
leaving the 12:1 will cause problems.

 

ok i have the calabration kit for 440 and higher injectors. also i only want to run 5psi but it wont hold at 5 psi i can hold 1-4 but at 5 it dies. the ecu is an el prototypes pm6 88-91 si sohc ecu with a b16 profile and rev limit set to 9k i have the msd set for 2 degrees retard on the **** i'll wait till i get my injectors thursday to see what happens if that dosnt work i geuss im gona get a hondata and leave it at that thanks for the help i'll keep ya posted.

 

you did properly gap your plugs to about .030-.032, correct? if not, this is why you cant boost anymore then 5psi. a friend of mine had the same problem.

 

that's what i was gonna say. same thing happened to me, a long time ago. oops.

 

dont you feel like an idiot when you realize its the plug gap! i know i did!!!