my tps log on my proefi shows 98% thru entire pull, so i guess that means the TB is wide open..... damit, hoping that was easy fix to boost isssue

 

Are you still hitting a High Duty cycle on your bcs?

If i remember right you had it plumbed in a "high boost" method vs the standard method.

Just raise your high voltage for the TPS to 5.9V...max you will see is 80% open. problem solved.

 

nah different setup now. running 4 port. but after 6000rpms it seems to drop to gate pressure regardless of wastegate duty cycle. WaS hopin the TB was closing and my gate reference was losing pressure.

i'll have to to hooking my gates up post TB

 

I believe my reference signal is pre TB to prevent fluttering when I step of the TB.

What is your target pressure and what pressure springs are you running?

If your BCS is hitting 100% DC then you have probably maxed out what your springs are capable of holding even with the extra pressure on the head.

Where is your reference? Right off the Turbo? If so you pressure at the outlet of the turbo head might be far exceeding what is reaching the plenum and being used to shut the wastegates.

You DC high for normal boost?

 

im runnin like 38% . even if i creep from there to 45 IDC i still an just seeing spring pressure. i hate my car

 

Target boost? Wastegate spring pressure? Running reference off turbo outlet?

 

simple, 214kpa or more , on 200kpa springs, on Intake pipe reference

so 16 plus psi on 14 psi springs

 

Have you pressure tested your system to make sure all your hoses/diaphragms are good?

 

ya ive spent more than a lil time with this, i wanna post my cosworth data just to make people crazy.

the car is fast if it would just hold boost