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EG hatchback
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345 Posts
Discussion Starter #1
Hi im new to this boost thing. my built d16z6 vitara and eagle h beam rods motor. i have a t3t4 turbo in this thing. i have a greddy profec boost controller. before this i have a manual hallman boost conroller but i was tired of going through the engine and manually turning the boost and adjusting it by increments little by little till i got the desired boost psi.

Greddy profec boost controller.
my question is that i dont know how to operate this thing. i got this thing installed on my car followed the directions from the online site. still confused.
i want to just run like 7psi but the spring is stock 6 without boost controller. when running this boost controller it goes like 10psi max which i don't want yet.
im confused on the settings like low boost
high boost.

how do i control the boost just to run it 7psi and so forth?

i try to set the lowest setting boost low goes list like this
low boost/
set
gain
start peak.

high boost/
set
gain
start peak.

these settings im lost.
how do i like control the actuall pressures.

i want to like control the boost to adjsut psi to 7psi setting as is and adjsutments like that?

im lost
i played with it and it seems to max out the spring pressure at 10psi and i hit the boost cut.

i wanna control the bo0st settings i don't know how this works.
please hellp me thanks.

i posted a pic attached to this thread.
thanks..
also heres the manual but im still lost in controlling the actual boost pressures, it maxs to 10psi i want to control max it to 7psi for now.
http://www.greddy.com/upload/file/Profec_manual.pdf





how i connected
solenoid #2 with B
Solenoid #3 with A t-together with D

need help thanks.......
 

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Registered
EG hatchback
Joined
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345 Posts
Discussion Starter #2
also the boost controller low settings max is 10psi i want it to only max out at 7psi for now is it possible? anyone knows how this hiboost low boost settings works?
 

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Registered
1992 Civic Si
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1,671 Posts
At 0% duty the solenoid shouldn't be sending any pressure to the top port of your wastegate and you should be getting spring pressure only. If that's not the case, review your hose plumbing. With an external wastegate the solenoid should be used to SEND pressure to the top port to hold it closed, not bleed pressure from the bottom port. The bottom port should receive full boost pressure at all times.

If your plumbing is all correct, unplug the solenoid and do a pull. Should be spring pressure.
 
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