Greddy PRofec B-Spec II EBC problem

[Dave4g63]

I have looked on here and no one seems to be having the same problem as i am so here goes.

i have a 95 Eclipse GST with a Hahn Super 16g swap and some goodies to go with it (listed on my profile) i am using a Greddy PRofec B-Spec II EBC. i decided to turn up the boost because my Uncle told me i should be able to handle more boost as he was running 17 psi on a T25 with less upgrades than i have.i have been running between 14.3 and 14.7 psi.well i turned the boost up and it ended up going down instead where i was maxing at about 10 psi. i have started changing the gain and start boost how the manual told told me too but my boost is still very erratic. it will go to about 10 psi and hold it but occasionally it will go up as high as 16 psi and immediately go back to 10 ish. i've been through the the instruction manual and it says to increase the gain. when the boost doesn't hit 16 psi it will hold 10 from about 3000 rpm to 4750 then it drops down to around 8 and doesn't build back up. i would like to run 15-16 psi steadily if its possible with my current set up. could someone tell me what i should do, i just want it to work right now. i was getting horrid boost lag before when it was running 14 psi. also what would be the ideal boost to run. thank you

 

[rEclipserGST]

Go take some pictures of how you have the EBC set up. Where is your boost source tapped at? Did you check your internal wastegate to see if it is loose?

 

[Dave4g63]

ok , since its dark out the pics might not be great

 

[flyineagletsi]

Have you tried to up the percentage of the "set"? I believe that increases boost and gain increases the valves sensitivity. It's been a while since I've messed around with mine. I have my 16g setup hitting 24lbs by 3000 and pretty much holds it to about 6ish. Peak boost says 25.4