Greddy Profec Bspecii Setting

[Jaysiin]

can someone help me set my r33 with this ebc?

i want the low boost setting at 10psi and i want the high boost setting set to 12psi. and i dont want boost spike obviously.

i dont know what set,gain,start boost etc is best to suit the desired boost readings. can someone please help as i am new to this.

[bored33]

There is a thread on this to help you set it up. Cant remember from the top of my head but I will go through my favourites and post you a link.

EDIT:

search - "Tuning Your Greddy Profec 2"

[Jaysiin]

thanks ill do a search. i was waiting for a response

[The Bogan]

Someone posted up a users manual.

I hate to say it because im a bad one for not searching but try searching and you will find it.

Wish i saved the page myself.

[The Bogan]

lucky i dont box, beaten to the punch.

[Jaysiin]

i have seen the manual, but i dont know what these other settings have an impact on the desired boost level setting. i was hoping someone out there has the boosting setting and ill copy their settings.

[bored33]

Its hard to copy settings as each car is a little different give and take a few changes. What mods do you have?

[Jaysiin]

see my sig block . i just got my car back from the mech, however the ebc has been reset

[bored33]

If I remember from my old tune, start boost was 8psi - gain was at 6 - set was 18. So when you drive around to tune it, fiddle with it from there and you should be fine. Basically GAIN is the fine tune and SET is the main control for the duty cycle of the solenoid/gate (can't remember which it controls).

Hope that helps. I know tuning these are a pain in the ass which is why I now have a boost tee and use the EBC as a boost gauge.

[Jaysiin]

i been on that link. and i still cant f$%^&ing set it. how hard is it just to set it to 10psi and 12psi? argh!

i need a walk through :S

Edited October 28, 2008 by Jaysiin

[bored33]

Where abouts do you live?

Are you testing on the highway in 4th or 5th? Those are the only gears you need to test.

Put the gain to 5% which is the base. Put the set to about 20%. Lower your starting boost to say 4psi. Now, run your car in 4th and see what your gauge says. Adjust ONLY your set until you roughly get near the boost you want before it starts to drop off at high end rpms. After that, if your boost falls off, increase the gain by 1% and see how you do. If you no longer experience boost drops but the boost is too high, reduce the SET by 2% and see how that goes - up by 1% if that was too much. Once you are getting what you want, then increase the starting boost until your limiter screams by 1psi at a time. Once your limiter goes off, reduce the starting boost by 1psi and that will be your nominal starting boost.

[Jaysiin]

im located in fnq. thanks for that ill try playing with it. makes it harder when i dont have a boost gauge.

[Beer Baron]

it spells it out for you in the manual what each setting does and the order in which to set them up. it even tells you how to trouble shoot. give the manual a good read through, then take it with you in the car if it's not sinking in yet. there is not much point using other peoples settings. every car is different.

[Travis Bickle]

the last 2 pages on the manual make it soooo easy.

but, ill help regardless.

if you want 10psi, put your gain at about 9% and your wastegate opening percentage at about 50%.

but this isnt all. now go to the setting after the gain where it shows a "psi" number. this is where you want your wastegate to start tapering off. set this at about 8. this will help with spikes.

now go drive your car. if it spikes, back the gain off 1-2% at a time. if your total boost starts dropping too, then up your wastegate percentage figures. if your boost is falling away too much one top, up that "8" to "9"

i also have an hks fuel cut defencer to get rid of overfueling/spiking boost issues, you might want to look into one of those, they are only about 130 bucks.

also, set it to use the "last boost" function, which displays the last highest boos for 3 seconds when you take your foot off the pedal.

i cant speak for your car, but mine is finnicky. i have to adjust it in the morning vs. the afternoon because of the temperature change.

[bubba]

wtf is a wastegate opening percentage?

The settings are SET (% increase over actuator pressure), GAIN (used to help with tapering or creeping boost, read in %), SETGAIN (used to hold the wastegate shut till desired pressure, reads in psi or bar), the rest are for warnings/alarms.

SET and GAIN both affect overall boost, SETGAIN holds the gate shut for as long as you want but it can't be set too high or it will spike.

I've been over this before but basically, start with a reasonable SET value (roughly work out what percentage increase you need.. 5psi -> 10psi = 100%) - don't go too high as the GAIN function will ultimately affect overall boost so start with a reasonable SET settings and then bump it up after you have used the GAIN setting to level out any taper or creep.

Once you get it holding the boost level you want, use the SETGAIN feature to bring the boost on faster - keep increasing it in small increments until it spikes then back it off a little.

It's not rocket surgery!

Edited October 29, 2008 by bubba