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Idiotic Ebc Install

gt-ahhh!

By gt-ahhh!,
in Engines & Forced Induction

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gt-ahhh! Proficient

gt-ahhh!

Posted
Posted

hello,

i just paid $165 to get a greddy profec b ii installed. naturally i was very excited and couldnt wait to try out my new gadget. attempting to set the thing up was irritating at first, because i didnt seem to be able to get very good live readings, and the peak boost results were often ridiculous, ranging from 1.6psi, to 23.5psi, despite the car not feeling any different on either run.

i have searched and figured out the tuning now, thanks to a very helpful guide i found. but turns out the ebc was set up all wrong. the hoses to the actuator and the compressor housing were the wrong fkn way around! and the pressure sensor was ludicrously connected to the "NC" (which is for external wastegate). i have no idea how you can get it so fkn wrong! clearly the pressure sensor should be connected to something pressurised.... like the manifold maybe...

i have a question though, the manual says "NO" to the compressor housing, and "COM" to the actuator (internal gate). i changed it to this because it was the other way around, but i just want to confirm its correct if anyone knows. oh and the pressure sensor connects to the fuel pressure regulator right?

now i have to try and dial in 18psi with the stupid % set boost function. what is with that?

lol at modifying cars.

need some splitfires too. anyone know of performance coilpacks in blue or yellow (to match my engine bay)??

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RBwhatever Veteran

RBwhatever

Posted
Posted

Yes that's correct. Just as it says in the manual :(

So the "NO" needs a pressure signal from intercooler piping or compressor housing or somewhere there, "COM" goes to the actuator. And the pressure sensor for the unit, just T it out of one of the hoses from the plenum. As you said, fuel pressure reg vac line, it's the most easily acessed.

GTR1993 Mentor

GTR1993

Posted
Posted

Think of it like this

NO=normally open

NC=normally closed

COM=common

If there was to be a failure of the solenoid for an internal gate car you want it to be flowing air, so you don't run huge boost levels, so you use NO and COM

If there was to be a failure of the solenoid for an external gate car you don't want it to be flowing air (its connected to top of the wastegate to hold it down), so you don't run huge boost levels, so you use NC and COM

paulr33 Grand Master

paulr33

Posted
Posted

think of it like an interceptor

the unit needs manifold pressure

so that is seperate

then it needs a signal in (intercept it) and signal out

so it takes signal in from the manifold again and then intercepts it (this is where it bleeds pressure in/out) and then signal out goes to the actuator

so the controller sits in the middle and lies about pressure to the actuator

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