How to tune your Electronic Boost Controller
#54
Got Boost?
Join Date: Jun 2010
Location: Houston, TX
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Kane (and other EBC tuning masters),
Here's my situation: I have been messing with my boost settings and my car maxes at 6psi almost regardless of what I set the SET BOOST to. Even the START GAIN is at 7 or even 9psi and it stops at 6psi. BUT - if I turn OFF my boost controller (it's the Greddy Profec Spec II) I will hit 15psi and the car absolutely FLYS.
What could be my problem? Current HI setting:
SET: 30%
SET GAIN: 9.5psi
GAIN: 10%
WARNING: 14.0
LIMIT: L.25%
Thanks in advance, I am new to this.
Here's my situation: I have been messing with my boost settings and my car maxes at 6psi almost regardless of what I set the SET BOOST to. Even the START GAIN is at 7 or even 9psi and it stops at 6psi. BUT - if I turn OFF my boost controller (it's the Greddy Profec Spec II) I will hit 15psi and the car absolutely FLYS.
What could be my problem? Current HI setting:
SET: 30%
SET GAIN: 9.5psi
GAIN: 10%
WARNING: 14.0
LIMIT: L.25%
Thanks in advance, I am new to this.
#55
Boosted Kiwi
iTrader: (2)
sounds like your solenoid is wired/or piped the wrong way around somehow and you are getting max. boost when you turn it off .
You need to make sure that when the boost controller is off - you have full air flow through the solenoid to the actuator.
You need to make sure that when the boost controller is off - you have full air flow through the solenoid to the actuator.
Last edited by Brettus; 02-24-2011 at 01:32 PM.
#56
Got Boost?
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Thanks for the reply and this will sound dumb, but how can I check that?
#58
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#60
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Thank you, I appreciate the help. I'll check that out tonight if I still have some day light after work. I love the capability of these things, but it's just not working the way it's supposed to.
BTW, how much boost are you running to get 333whp? At 15psi I got 295whp on a mustang dyno.
BTW, how much boost are you running to get 333whp? At 15psi I got 295whp on a mustang dyno.
#61
Boosted Kiwi
iTrader: (2)
Thank you, I appreciate the help. I'll check that out tonight if I still have some day light after work. I love the capability of these things, but it's just not working the way it's supposed to.
BTW, how much boost are you running to get 333whp? At 15psi I got 295whp on a mustang dyno.
BTW, how much boost are you running to get 333whp? At 15psi I got 295whp on a mustang dyno.
It does depend on how good the design is but if you have 15psi boost to 7500rpm and you are not making 350whp at least then you have to start looking for installation problems .
https://www.rx8club.com/series-i-major-horsepower-upgrades-93/horsepower-vs-boost-pressure-comparison-greddy-based-turbos-201475/
#63
Got Boost?
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#64
Got Boost?
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Check out this thread for boost vs whp .
It does depend on how good the design is but if you have 15psi boost to 7500rpm and you are not making 350whp at least then you have to start looking for installation problems .
https://www.rx8club.com/showthread.php?t=201475
It does depend on how good the design is but if you have 15psi boost to 7500rpm and you are not making 350whp at least then you have to start looking for installation problems .
https://www.rx8club.com/showthread.php?t=201475
#68
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At WOT it's about 10.5 maybe even a tad lower at times. Should it be higher for a DD?
#71
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And thanks again for all the good info. I don't mean to thread jack since this is about boost controllers, but it's related I guess.
#74
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I already downloaded and read the manual, but I do appreciate the link and the pictures I don't think were from the manual, right? So for my application, the NC is the only port that should be connected? Is the NO port just left un-used?
OR, that diagram shows you how each port should be setup?
I believe my setup is fail open and I am thinking I need a smaller spring for that wastegate. I read another thread where the guy ran a 2lb. spring in his Tial 44. So - should I buy another and install?
I basically have the boost controller to where LOW will do about 6-7 psi and HI will do 14-15, but if the controller goes out, I'm stuck with 15 and in the Texas summer, that will kill me.
OR, that diagram shows you how each port should be setup?
I basically have the boost controller to where LOW will do about 6-7 psi and HI will do 14-15, but if the controller goes out, I'm stuck with 15 and in the Texas summer, that will kill me.