Profec B Spec II Settings Library

[JDM Sam]

try this setting now for about 9 psi

set boost 15%
gain 25%
set gain 50
warning at 10.0
limiter L25

 

[protegeric]

My set is at 15% and from there (I haven`t tried a higher set) but my limiter only goes to 20% and that`s all. What`s the deal with people setting their limiter at 99%, etc.? Mine doesn`t go that high. Is the 99%, etc. in kpA?

What mods for thees two settings JDMSam?:

try this setting now for about 9 psi

set boost 15%
gain 25%
set gain 50
warning at 10.0
limiter L25

JDM Sam:

Mazdaspeed Protege
Mods (Unkown)

For Boost = 9.5-10PSI

Set = 15%
Gain = 35
Set Gain = ??
Warning = 100
Limiter = 99%

 

[JDM Sam]

My set is at 15% and from there (I haven`t tried a higher set) but my limiter only goes to 20% and that`s all. What`s the deal with people setting their limiter at 99%, etc.? Mine doesn`t go that high. Is the 99%, etc. in kpA?

What mods for thees two settings JDMSam?:



JDM Sam:

Mazdaspeed Protege
Mods (Unkown)

For Boost = 9.5-10PSI

Set = 15%
Gain = 35
Set Gain = ??
Warning = 100
Limiter = 99%

They released 2 profec b boxes. Yours is the latter version.
I leave the limiter at the fullest setting in case something really goes wrong with the wastegate acuator or boost solenoid.
Setting for any intake exhaust. If it spikes, just adjust the gain.

 

[protegeric]

i have a REALLY good setting right now. holds right where i want it and stays. its very similar to yours except i adjusted the set to about 23% and limiter is about 5% (but it never hits it) and warning at 105 or 111 i think. ill post all the exacts later. it`s holdin right at 9.9psi.
set 23
gain 35
set gain 65
warn 105
L 3%
no spiking, nice and constant 10 exactly. CAI + FMIC + 2.5" catless

They released 2 profec b boxes. Yours is the latter version.
I leave the limiter at the fullest setting in case something really goes wrong with the wastegate acuator or boost solenoid.
Setting for any intake exhaust. If it spikes, just adjust the gain.

 

[JDM Sam]

yea the settings should fluctuate some. I had to readjust mine after changing out the vacuum lines to silicone Samco ones.

 

[Jaysanooch]

My Profec spec 2 is not holding boost, I want 7 psi.

set=0
gain=5%
set gain=5%
warning=8psi
limiter=L20% Mine doesn't go any higher then L20%

With this, if I go past 5000rpm, I hit fuel cut at 11.7psi...it was a cold night. What''s going on, is my wastegate actuator going bad?

 

[protegeric]

Hitting fuel cut? No, fuel cut is fuel cut. Just too much air/cold air and the car says, "NO." Get an AFC or piggyback or standalone or somethin.

My Profec spec 2 is not holding boost, I want 7 psi.

set=0
gain=5%
set gain=5%
warning=8psi
limiter=L20% Mine doesn't go any higher then L20%

With this, if I go past 5000rpm, I hit fuel cut at 11.7psi...it was a cold night. What''s going on, is my wastegate actuator going bad?

 

[Jaysanooch]

Hitting fuel cut? No, fuel cut is fuel cut. Just too much air/cold air and the car says, "NO." Get an AFC or piggyback or standalone or somethin.

I understand what your saying except why with my settings above am I hitting 11.7, shouldn't the Profec B spec prevent my boost from going that high. My limiter only goes to L20%.....i see some of you can set your limiter to 99%. Anyway, that's why I'm thinking I have wastegate actuator issues.

My boost holds 7-7.5 until the rpm climb to 4500...then my boost climbs to 8-9psi as I reach redline then bam fuel cut. I then select boost peak and I read 11.7psi.

Do I need to change anything with my settings?

 

[JDM Sam]

There were 2 models of profec b spec 2 units.
You have the revised version.

1. Set gain adjusts your spool up. So if it spikes turn this down.
2. Set boost adjusts how much more boost you will run and if your car spikes and drops off you need to turn this up.
3. Gain adjusts the valve sensitivity. If your boost flutters at full boost, you need to turn this down. Tune it to where it just holds steady.

I found moving the EBC to an isolated vacuum source helps with the tuning. DO NOT USE THE PURGE SOLENOID LINE or the FPR line!
Your car will idle like s***!
I would move the bov/bpv line to another source.

With creep isues, you are having you have a leak somewhere. Could be a faulty wastegate actuator or a leak in the manifold or elsewhere.
I'd replace all the lines and check for leaks and hand pump test the actuator.

 

[protegeric]

Ah, I see now. JDM is right. Maybe you have somethin hooked up wrong. Also did you remover ALL the little plastic deals blocking the holes to the "COM" "NO" etc. ports? Even the unused one? Your settings are kind of funky too. Look at someone else`s settings and lower the set and gain. My L=5%, 20 or 99 or 100 is unecessary if your limiter kicks in. Change your settings to set=05 or 10%, gain=10 or 15%, somethin like that? Also, check your installation and the little cap that blocks the unused port?

I understand what your saying except why with my settings above am I hitting 11.7, shouldn't the Profec B spec prevent my boost from going that high. My limiter only goes to L20%.....i see some of you can set your limiter to 99%. Anyway, that's why I'm thinking I have wastegate actuator issues.

My boost holds 7-7.5 until the rpm climb to 4500...then my boost climbs to 8-9psi as I reach redline then bam fuel cut. I then select boost peak and I read 11.7psi.

Do I need to change anything with my settings?

 

[Jaysanooch]

Good info, thanks for your help and patience guys....I'll double check everything.

Jdm, about the bad idle thing, I have those symptoms...like waiting at a light and my idle dips and I sometimes stall when I take off if I don't pay attention to rpm. I'm pretty sure it's hooked up the way your saying not to do it...so I'll have to modify this. I hope it's just these little adjustments and not the damm actuator or manifold leak or both. Thanks again guys!

 

[Fede_italiano]

Just to add something here...

the SET % is easy to figure out how it works. In the manual it says 0% is stock wastegate boost and 100% is max boost (wastegate hose disconnected)

So just take your max boost (MAX) and subtract your min boost (MIN) add 1...
take that number and divide it into 100 and youll get a numbr that corresponds with the percent you need to for each psi of boost...

so for a t25 MIN=7 Max=14 MAx-MIN+1=8 100/8=12.5
So for 8PSi SET should be 12.5... add 12.5 for each psi you want to increase over stock

 

[MSP Kirk]

Wow i JUST found this thread... coulda used it a long time ago haha. thanks for sharing the info guys.

 

[smo0f]

Not sure where to post it, but i'll start with here.

In the pic attached you can see how i have my setup inside the car. I already had a boost gauge hose run into the car for my boost gauge, so i tapped into it for the ebc. They don't really match, there's a difference of 1-2 psi. Is it because of my setup? I'm also wondering how much of an effect that filter has. It's basically a 1 way valve, so that the ebc can only see boost and not vac, but i dont think it's a good quality valve.

Plus i used to run 5psi (stock), and set it at or near 10. Feels just a tad faster, getting readings of (8.2-8.7) on the ebc, and (9-10) on the defi boost gauge. Not sure which one to trust or tune by etc. I'm also for some reaosn still very rich while boosting. wb gauge showing a steady 10.0 (lowest it can go) while i'm in boost, same as when i was at 5psi. That can't be right. What's goin on?!

 

[protegeric]

Is the filter one way? The EBC sees vacuum, or does that come from the fuel pressure line? The filter goes on a certain way. One side is inlet and one is outlet. My boost gauge was one full psi off from my EBC gauge also. I would personally trust the EBC because the gauge relies on more simple mechanical means and it`s analog, too many variables for me...

Not sure where to post it, but i'll start with here.

In the pic attached you can see how i have my setup inside the car. I already had a boost gauge hose run into the car for my boost gauge, so i tapped into it for the ebc. They don't really match, there's a difference of 1-2 psi. Is it because of my setup? I'm also wondering how much of an effect that filter has. It's basically a 1 way valve, so that the ebc can only see boost and not vac, but i dont think it's a good quality valve.

Plus i used to run 5psi (stock), and set it at or near 10. Feels just a tad faster, getting readings of (8.2-8.7) on the ebc, and (9-10) on the defi boost gauge. Not sure which one to trust or tune by etc. I'm also for some reaosn still very rich while boosting. wb gauge showing a steady 10.0 (lowest it can go) while i'm in boost, same as when i was at 5psi. That can't be right. What's goin on?!

 

[smo0f]

Is the filter one way? The EBC sees vacuum, or does that come from the fuel pressure line? The filter goes on a certain way. One side is inlet and one is outlet. My boost gauge was one full psi off from my EBC gauge also. I would personally trust the EBC because the gauge relies on more simple mechanical means and it`s analog, too many variables for me...

it definitely is 1 way.. if you take it out, try blowing/sucking (easy with the jokes now) on the inlet that the arrow on the filter is pointing away from, or the other side, you'll see what i'm talking about.

 

[protegeric]

ok, i have mine hooked up correctly, im not worried about that. I guess it sees vacuum from the fuel pressure regulator hose then. ive been thinkin about my analog boost gauge too. my last analog boost gauge was perfect spot on, but i broke it accidently and this new one is off by 1 PSI. ah oh well. if ur boost gauge is off by 1 also, just set it by wat the EBC says and get ur settings perfect and leev it... im a little bummed about my boost gauge too.
oh, and yeah the MAZDASPEED Protege is richer than a mofo all the time. if u dont have one (i dont know if u do or not) get an AFC or somethin. it helps a lot.

it definitely is 1 way.. if you take it out, try blowing/sucking (easy with the jokes now) on the inlet that the arrow on the filter is pointing away from, or the other side, you'll see what i'm talking about.

 

[smo0f]

yea i have, getting an MPI, and extra injectors. But this is really rich, should be lean. I think it might have to do something with the plugs. Maybe they're not burning off enough fuel so maybe it explains the slight bogging as well as the a/f being rich. who knows

 

[KonspiracyImage]

subscribing

 

[smo0f]

anyone have settings for 15 psi?