Hi,

I need help on setting my newly install AVC-R. So far, I have no luck on finding a good setting from the Forum.

I'm new. I read the manual back and forth. But still there is a lot of unknown setting. Basically, I mean I'm an idiot on this stuff. Can someone help?

Thanks.

 

well if its like most boost controllers which i'm assuming it is, it will have a gain setting and a set setting. The gain setting will be how fast the turbo spools up. Basicly this means it controls how fast the wastegate will open and at what time. The set will adjust how much the wastegate opens and stays open to regulate desired boost. They pretty much work together, what I will tell you is becasue cars vary bit by bit adjust your boost to a resonalbe leval to start out with. Being the stock wastegate makes 11psi when the boost controller is off (boost solenoids open) Set the gain to 40% above stock, which would be 40% more then 11psi so it would yeild about 15-15.5 psi Then graduallt raise the gain until your peek boost has no spikes in it or a spike of less then .5 psi. You do not want spikes in your boost but remember the less gain you have the slower the car will build boost so adjust acording. Once your gain is set do not ever change it unless you change parts on your car. Only adjsut set numbers to raise your boost. The only thing gain will be used for is spooling up and regulation spikes. Hope this helps you out...

 

I had an AVCR that I purchased for my WRX, but never got to install it before selling the car. I can tell you that you need to re-read that manual and flow-chart many times over, and really understand the terminology, before it starts making sense. It will begin to jell and finally will make sense .....trust me.

The AVCR is a very complex boost controller, but does give you the ability to set boost levels by rpm point which is very nice indeed. The original AVCR had issues holding higher boost levels due to a fairly small solenoid. I understand that this has been changed/rectified in the AVCR II which uses a bigger, stronger solenoid. This doesn't mean the original is bad, its just not as good for running higher boost pressures as the new version, or say maybe an SBC id or Dsbc which use dual solenoids to split the pressure to allow much higher boost levels.

Although they may not understand the Evo specifically, you should also visit Nasioc and do some searches on the AVCR as there is a wealth of knowledge available regarding AVCR set-up and features. Also make sure and get a boost units conversion table to make sure you have your boost levels set appropriately. These are readily available if you do a search on Yahoo for "pressure conversion tables".


N10S

 

I got an initial setting on the AVC-R. The car runs fine. From the monitor, I can tell I can hold 1.3 bars steadily up to 7000rpm.

But I'm a bit worry on the spike. I can tell the boost spike as high as 1.6 bars. 1.6 bars = 23.2 psi. This is only takes less than a second.

Can I do anything or change any setting so the boost don't spike as high as 1.6 bars?

I replaced all vacuum hose so the restrictor is out.

 

Too much gain usually results in boost spiking.Here's a link with a little theory and background on EBC's .

http://splparts.com/doc/tech/EBC.htm

 

Ok I am use the avc-r in my evo and love it no problems. Here are my settings. Put F/B to 3 for all gears. Set boost level and 1.30 for the whole rpm range. Then set duty cycle to 61%. No go and drive the car hard but be sure to watch the boost pressure cause for the first few runs the avc-r will tweak the duty cycle a bit so you get the quickest and least amount of boost spike. Once the avcr has learned the duty cycle setting you will see *** where you previously entered the 61% . Last thing is remember that the avc-r doesnt read in bar, it reads mmhg which is about 14.2psi for every 1.0mmhg. If you have anymore questions feel free to PM me and I can give you a more detailed description of my settings.