Apexi Pfc + Apexi Boost Controller

[Primordial]

Hey, I've had a look at the faq on the Apexi Power FC, but I haven't been able to figure out how to change the boost on it?

Looking at the screen under SETTING - BOOST, I dont understand what the layout means. For example:

1. .6 Bar 53

2. .8 Bar 54

3. .9 Bar 52

4. 1.1 Bar 55

Why is there four different settings for the boost? Which one actually controls the boost level? And what relation does the Duty Cycle(?) value have?

I hear about a lot of other guys simply selecting the high or low boost settings with other boost controllers. Is it as simple as this with the PFC?

Excuse my ignorance, but I'm a bit of a n00b with the PFC. I didn't want to go playing around with stuff and destroy anything, so I thought I would see if anyone on here can help me out?

Cheers

[Robo's]

It is showing you have 4 boost settings available. Re .6 bar, .8, .9, 1.1 bar. From your hand controller you should see what setting it is on. Then its as simple as moving the marker to the next boost setting. The number 52,53 etc relates to delaying boost. Like 40 would be holding boost back until later in the rev range and the higher number say 55 would bring boost in earlier.

[Primordial]

It is showing you have 4 boost settings available.  Re .6 bar, .8, .9, 1.1 bar.  From your hand controller you should see what setting it is on.  Then its as simple as moving the marker to the next boost setting.  The number 52,53 etc relates to delaying boost.  Like 40 would be holding boost back until later in the rev range and the higher number say 55 would bring boost in earlier.

<{POST_SNAPBACK}>

Cheers for the explanation Robo. A couple of questions:

1. You can shift the #1 and #2 up and down to choose the boost value you want, but which of these does it actually use??

2. Wouldn't you want to be increasing the duty number to the highest value so as to bring boost on sooner? Obviously there is a reason why you wouldn't, what are the implications of putting this value too high??

[Cubes]

Does the powerfc go through a 'learn' mode where it gradua.ly increases boost? Or does it run in a kind of closed loop mode where it monitors current boost level and adjusts duty cycle real time?

Edited November 22, 2005 by Cubes

[Cubes]

With regards to what boost level you have selected.

That would be the last boost level highlighted prior to returning to the main menu. It selects the value eactly the same as when you select which AFM to use.

[Primordial]

With regards to what boost level you have selected.

That would be the last boost level highlighted prior to returning to the main menu. It selects the value eactly the same as when you select which AFM to use.

<{POST_SNAPBACK}>

Ahhh gotcha.. yeah that makes sense. Ignore question 1 up there^^.. I was getting it mixed up with the monitor selection screen where you move the numbers according to what sensors you want to watch.

I'm still wondering about the duty cycle values though...

Interestingly if I have mine set on 1.00 and 46 duty, the peak boost i get is 0.86bar. Is this inaccuracy of the sensor maybe? Or is it just to do with this duty cycle? Hmm...

[paulr33]

when you work can you pm me how ill add to powerfc faq

[Cubes]

Does the powerfc go through a 'learn' mode where it gradua.ly increases boost? Or does it run in a kind of closed loop mode where it monitors current boost level and adjusts duty cycle real time?

<{POST_SNAPBACK}>

Any one know?

[Robo's]

What i have noticed if you bring the duty cycle up a little you get slight increase in boost and when you lower duty it reduces boost a little. Maybe this is boost spike, im not to sure.