Anyone know which pins I need to put in on the OFAM plug to do this?

Thanks!

 

If I get a chance I'll dig out a wiring diagram and check for you mate.

 

Cheers dude I did message rob but he ain't replies for a while so I dunno if he's away or busy..

 

Sorry mate, txts generally get ignore by mistake. Emails are the way forward as I check them first thing when I get to work and again through out the day. Out of hours txts I generally don't read and forget to reply when actually working.

PIN 33 on the ford ecu. One side of the solenoid goes to PIN33 the other end goes to switched 12V via a 2-5A fuse.

Be warned that some solenoids have an internal diode (they will tell you in the datasheet of with a symbol on the side of the valve) and importantly!!!! If you currently have boost issues, a solenoid WILL NOT FIX THEM.

Ecu controlled boost is there to provide a simple, convenient and accurate method for altering boost pressure dependent on a number of programmable variables. I read on another thread that you are struggling to make more than 0.5bar? the solenoid will not help you here.

My advice is always to start off with a mechanical bleed valve, if this is capable of altering the boost pretty reliably within the range that you require then ecu controlled boost will work and better if the closed loop settings are properly tuned.

Good luck

Rob,

 

Cheers Rob, no worries as I know your busy.

I know it wont help my boost issues, thats down to the actuator so waiting on a replacement. Once thats dialled in ill plumb the electronic one in. I just wanted the ECU to control it rather than a bleed valve if im honest

 

Ahh now worries mate. It can be a faf to make work properly but when its all setup its much better as you can target a different boost for a particular TPS position etc, which is great in the rain with wheel spin, ie 100% throttle is 20psi, 90% throttle is 16psi etc.

Good luck!

Rob,

 

Out of interest chaps, which valve do you use with OFAM?

Lee

 

MAC Valve Lee.

 

There are a few that you can use. I have about 6 different types which will potentially work well, I'm just waiting for some time to dyno test, I used a vauxhall valve on a car a while ago which looked like it would work well but at high boost it seemed to jam causing over boost or under boost no matter how I plumbed it in which was very annoying as it would have been a very cheap option for people.

I will be re testing the vauxhall valve in the future with a few other changes to see if it can be made to work properly at high boost.

Rob,

 

I'm quite interested in this. I'll be going OFAM at some point, but I'm currently working on a small personal project: a microcontroller based boost controller. I started by making a digital gauge, that was easy but I've moved it on to PWM valve boost control. I've read a lot about MAC but there are 10000 different versions.

Lee

 

http://www.ebay.co.uk/itm/3-Port-Ele...item2ecd67bcef

 

Sounds like good fun Lee, what are you micro are you using... PIC, Arduino?


Ultimately you will have most joy with a PID control algorithm as the open loop PWM is very variable dependent.


Best of luck with it


Rob,

 

It's an Arduino Uno Rob. I used a 4 digit seven segment display for my boost gauge (Which was actually just powered by an Adafruit Trinket), but I'm swaying towards something a bit more flashy and maybe touchscreen for the boost controller.

It's a bit geeky but I'm enjoying it.

Lee

 

Good stuff Lee, its great having a real application that you can learn with rather than just trying to learn about something for the sake of it!

Good luck

Rob,