Mazda Rotary Club

General => General Technical => Topic started by: FD3S Efini on September 17, 2009, 11:52:06 PM

Title: Do i need a boost Controller?
Post by: FD3S Efini on September 17, 2009, 11:52:06 PM
My engine is getting rebuilt and when it is complete it will be getting a PFC to replace the standard ECU will i need a boost controller?
 
Current spec:
Racing beat exhaust
HKS downpipe
Apexi twin induction kit
HKS turbo timer
Apexi Power FC (when i manage to buy one and get it put on after the rebuild)
 
Do you reckon i will need one?
 
Cheers in advance
 
Kris
Title: Do i need a boost Controller?
Post by: neil_jdmr on September 18, 2009, 12:21:25 AM
I cannot see any reason why you would need one, as long as you get the pfc mapped then it will control your boost.
 
I believe the people who have fitted boost controllers along with pfc\'s have either had seperate boost issues or are boosting beyond the range of the stock solenoid.
 
Content to be corrected tho :-)
Title: Do i need a boost Controller?
Post by: m1tch on September 18, 2009, 12:33:52 AM
Whats controlling the boost at the mo?
Title: Do i need a boost Controller?
Post by: FD3S Efini on September 18, 2009, 12:36:09 AM
just the standard ECU until the PFC is installed, im pretty new to the boost side of things
 
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Title: Do i need a boost Controller?
Post by: m1tch on September 18, 2009, 12:39:59 AM
I guess it depends on if the PFC controls the boost solinoid, I have an FC and im running a boost controller, might be an idea as then you can change the duty on the solinoid which will help it spool better, mine allows me to choose how much boost I want in each gear :) make sure you have a mechanical boost guage as well :)
Title: Do i need a boost Controller?
Post by: FD3S Efini on September 18, 2009, 12:58:30 AM
yeah im buying few gauges to monitor the main things in the engine i will get boost gauge, oil temp and pressure and water temp
Title: Do i need a boost Controller?
Post by: m1tch on September 18, 2009, 01:07:25 AM
Try and get a mechanical one as its the boost that directly changes the dial, rather than the boost changing a sensor that is fed down a wire into another motor that moves the gauge electronically lol :) direct is better :)

The boost gauge should have a read out on it as well, so you will have a point of reference between the two :)
Title: Do i need a boost Controller?
Post by: BlitzBoy on September 18, 2009, 08:51:07 AM
The Apexi ECU controls the stock boost solinoid fine up to 0.9 BAR on the mods you listed