Greddy Profec B Spec II survey
Greddy Profec B Spec II survey
If you all do not mind taking the time, please list your mods, PSI, and settings for your Profec B Spec II in this order:
Mods:
PSI:
SET:
GAIN:
START BOOST:
(With so many threads asking how to adjust this controller I thought it would be helpful for others, including myself.)
Mods:
PSI:
SET:
GAIN:
START BOOST:
(With so many threads asking how to adjust this controller I thought it would be helpful for others, including myself.)
mods: t51r single, 1680 850 injectors, tiwn power, all suporting mods.
Psi: Low setting, 14psi High setting, 20psi
Set: Low setting, 37 High setting, 60
gain Low Setting, 10 High setting, 10
set gain Low setting, 120 High setting, 140
Psi: Low setting, 14psi High setting, 20psi
Set: Low setting, 37 High setting, 60
gain Low Setting, 10 High setting, 10
set gain Low setting, 120 High setting, 140
Stock twins, loads of other mods. Pm if you need more details
Lo
set 0%
Gain 5%
set gain
very low boost i think 8 psi
HI
set 34%
gain 24%
set gain 38
Very stable 13.2 psi
Hope this helps Scott
Lo
set 0%
Gain 5%
set gain
very low boost i think 8 psi
HI
set 34%
gain 24%
set gain 38
Very stable 13.2 psi
Hope this helps Scott
Last edited by sdminus; Aug 7, 2005 at 05:30 AM.
Overkill, glad you asked this. I have the same question, just never got around to asking it. I have a 3" down pipe, 3" mid pipe, 3" catback, grounding kit, greddy profec spec II boost controller, aftermarket intake w/ K&N, HKS turbo timer, 18' Fitipaldi rims all the way around with Falkin skins, Eibach 2" drop, and a few other ammenities.
PSI, I am trying to set it at 10 but all I am pulling now is 8.5 intermittently
I have my wastegate working at 37%. I am having the hardest time putting in the start boost. I have tries pushing the set button twice like it said but the option does not come up. Also, I want to start with 0 gain but when I go to put it below 5, it beeps at me.
Also, what is more acurate, the profec or the boost gauge.
I look forward to everyone else's reply.
Quid
PSI, I am trying to set it at 10 but all I am pulling now is 8.5 intermittently
I have my wastegate working at 37%. I am having the hardest time putting in the start boost. I have tries pushing the set button twice like it said but the option does not come up. Also, I want to start with 0 gain but when I go to put it below 5, it beeps at me.
Also, what is more acurate, the profec or the boost gauge.
I look forward to everyone else's reply.
Quid
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Originally Posted by quid
Overkill, glad you asked this. I have the same question, just never got around to asking it. I have a 3" down pipe, 3" mid pipe, 3" catback, grounding kit, greddy profec spec II boost controller, aftermarket intake w/ K&N, HKS turbo timer, 18' Fitipaldi rims all the way around with Falkin skins, Eibach 2" drop, and a few other ammenities.
PSI, I am trying to set it at 10 but all I am pulling now is 8.5 intermittently
I have my wastegate working at 37%. I am having the hardest time putting in the start boost. I have tries pushing the set button twice like it said but the option does not come up. Also, I want to start with 0 gain but when I go to put it below 5, it beeps at me.
Also, what is more acurate, the profec or the boost gauge.
I look forward to everyone else's reply.
Quid
PSI, I am trying to set it at 10 but all I am pulling now is 8.5 intermittently
I have my wastegate working at 37%. I am having the hardest time putting in the start boost. I have tries pushing the set button twice like it said but the option does not come up. Also, I want to start with 0 gain but when I go to put it below 5, it beeps at me.
Also, what is more acurate, the profec or the boost gauge.
I look forward to everyone else's reply.
Quid
Originally Posted by overkill
so far , these are the settings for mine. Note my secondary turbos are dying.
Set: 40
Gain:38
Start boost:40
13 psi on stockers , mods in my sig.
Set: 40
Gain:38
Start boost:40
13 psi on stockers , mods in my sig.
j/k

Great post.
I'm actualy eyeing the Profec B, so I'm educating my self here.
Originally Posted by TwinTurbo93
BTW, how many secondary turbos you have?
j/k
Great post.
I'm actualy eyeing the Profec B, so I'm educating my self here.
j/k

Great post.
I'm actualy eyeing the Profec B, so I'm educating my self here.


BTW, I've read all the horror stories about how people are having the darndest time setting their controller. Don't let that sway your judgementy.I have not had any of those problems so far. I've spent minimal time , and when I say minimal I have only devoted maybe 5 minutes of tune time and I'm getting consistent boost.
Originally Posted by overkill
hehe, despite my typo, it's more like a negative secondary turbo
BTW, I've read all the horror stories about how people are having the darndest time setting their controller. Don't let that sway your judgementy.I have not had any of those problems so far. I've spent minimal time , and when I say minimal I have only devoted maybe 5 minutes of tune time and I'm getting consistent boost.

BTW, I've read all the horror stories about how people are having the darndest time setting their controller. Don't let that sway your judgementy.I have not had any of those problems so far. I've spent minimal time , and when I say minimal I have only devoted maybe 5 minutes of tune time and I'm getting consistent boost.
Great topic
I'm just about done swapping out the twin turbo with a single. Once it is done I will need to tune it first with the stock ecu. After it is running good I will need to tune it with Apexi Power FC + Commander.
Here are my mods:
Single Turbo
SMIC intercooler
Koyo radiator
Blitz intake
Mid Pipe
Can someone give me the boost setup? Will the boost the same for stock ecu and Apexi Power FC?
Thanks,
Here are my mods:
Single Turbo
SMIC intercooler
Koyo radiator
Blitz intake
Mid Pipe
Can someone give me the boost setup? Will the boost the same for stock ecu and Apexi Power FC?
Thanks,
Originally Posted by tdom
I'm just about done swapping out the twin turbo with a single. Once it is done I will need to tune it first with the stock ecu. After it is running good I will need to tune it with Apexi Power FC + Commander.
Here are my mods:
Single Turbo
SMIC intercooler
Koyo radiator
Blitz intake
Mid Pipe
Can someone give me the boost setup? Will the boost the same for stock ecu and Apexi Power FC?
Thanks,
Here are my mods:
Single Turbo
SMIC intercooler
Koyo radiator
Blitz intake
Mid Pipe
Can someone give me the boost setup? Will the boost the same for stock ecu and Apexi Power FC?
Thanks,
click on the bottom doc.
i need some nhelp w this what u guys numbvers equivilent to.....i also dont rember seeing psi on.ly set and gain...this boost controller is very confusing try this fore a comapsrison
AKIRA---PSI: 9.5 (although my Defi boost gauge reads closer to 10)
SET: 25
GAIN: 5%
SET GAIN: 20
From memory:
Set: 28
gain: 14
For consistent 10 psi
AKIRA---PSI: 9.5 (although my Defi boost gauge reads closer to 10)
SET: 25
GAIN: 5%
SET GAIN: 20
From memory:
Set: 28
gain: 14
For consistent 10 psi





