whats the difference between...

*Gain
*Set
*Set Gain

??????????????

 

A Very Good Profec B Tuning Guide

I assume you're using a GReddy, anyways.. since those are the "confusing" settings on it.

Be careful using the default settings that website offers, unless you drive an Evo. Start w/ your set at 0% and work your way up to desired boost.

 

i know how to use it. but wtf do those settings do?
i just use SET to change boost.
but then theres GAIN which goes up tp %100 and SETGAIN which come up to 425 i think.

%100 of what
425 of what?

i noticed that when i change those numbers...

a) turbo spools up quicker
b) boost storts droping at highr rpms
c) all of the above

 

didnt notice the link at first.
great link. i found out everything i wanted.
thank you.

 

Well... the tuning guide roughly describes what they do.. but..

Gain: Basically this sets the rate at which the boost controller allows the boost to increase past the wastegate spring. The higher you can run it w/o overboosting/spiking, the better, but this number usually ends up pretty low for everyone.

Set Gain: This is the lowest point at which the EBC will begin to increase boost under WOT. You want this as close to your "Set" value as possible without overboosting/spiking.

Edit: And no problem You beat me to the reply button.

 

so if i want to do 15psi i need to set SETGAIN at 150?

 

Not always. Chances are that if you do that, you'll spike to about 18-20psi.

I'd say start with a Set Gain of about 100 (10psi) and then observe your boost gauge. If boost seems to fall off at higher RPMs, then increase the Set Gain.

 

i set it at 150, and it falls of over 4500, by the time i get to 7800 im at 10psi

 

What is your Gain set at?

 

set 38
gain 42
sg 150