please help with setting AVC-R

[makaveli]

hI GUYS, my uncle and I have recently fitted an Apexi AVC-R to my r32 gts-t. In the etc. menu I have put the correct settings to what car it is etc...

Although my problem is that its boosting more than it should. I have set it to 0.7 bar (11psi) and through testing its reached a max of 0.83 bar and an average of 0.76 bar.

I believe that the duty cycle may need to be set properly. I know that the AVC-R is wired correctly because its showing correct stats on speed, revs, boost etc...

Maybe I have left something out although I can only think its the duty cycle at this point in time.

Thanks

Mark

[uLa32]

under boost set your desired boost and in duty cycle, step down one by one % until you reach your desired boost. if it doesn't change, then you've hooked up the solenoid wrong. remember to do the boosting in the same gear.

different gears give different boost levels (not by much tho) so use the gear learning function to keep your boost the same in each gear.

and don't get busted speeding when testing your boost level

[makaveli]

thanks uLa32 I will continue to try and do so:)

[makaveli]

i have done the sensor check and it seems to be right, although I have one question that maybe effecting it - instead of drilling a hole before the throttle body for one of the hoses for the solaniod valve a mechanic said that it would work the same from the actuator hose (the one ur ment to close off) so thats what we have done, also to avoid drilling a whole in the piping. Is that wrong?

thanks heaps for your help

[predator]

Which do you mean by actuator hose? Do you mean the one from the return from the BOV? In mine it was blocked off there, and taken from before the throttle side.

There should also be settings to adjust "sharpness" or basically reduce spiking, but i'm not fully familiar with the AVC-R functions so couldn't say definitely. I know in my ProfecB that setting can effect whether it hits an exact boost when u quickly put your foot to the floor or creep up 1-2psi over.

You probably should take it to somebody to specifically dyno tune after the install - as you will also need fuel/air adjustments as well to sort it all. The whole characteristics will have changed, even if you're running similar boost levels.

[makaveli]

Hey Gordo, its the actuator hose that goes to the front of the turbo i believe, which is getting intake air anyway thats why the mechanic said it should work rather than drilling a hole in the intake before the throttle body. I feel completely lost after trying to set it for so long i think i give up. Im gonna give it a service next week and a dyno also

Do you think Ice will be able to look at it for me?

Do they know about the avc-r?

Is it better to get a service before the dyno or doesn't it matter?

Thanks Gordo

[Grim]

makaveli, when monitoring does your inj readout always show around 50% ?

[makaveli]

sorry Gordo but do u mean it was taken from a hose before the throttle side or actually drilled into the intake before the thottle?

thanks mate

[makaveli]

Hi Grim, I believe when the avc-r was set up we chose to connect engine rpm instead of injector duties. Although the injectors say 80% or so and decrease when reving.

[predator]

On mine at least, on the cooler piping before it goes into the throttle body there is a nipple (part of the HKS piping) - this goes via hose into the "in" side of my boost solenoid. From there the "out" side goes direct to the actuator.

Depending on how the AVC-R works, it may just need a t-piece into the existing intake->actuator line. Wait a tic.. will check the installation diagram for u.

i will post a pic tonight as i have a new shiny digicam *woot* picture is 1000 stupid words

Ice definitely would know about the AVC-R (or VMS, BMT or any other workshop probably) and probably installed 50 or more.. they can tell u what you are doing wrong. If you have time go down there and they'll probably tell u in 5 seconds. They can hook you up with a dyno tune as well.

Service will help if they clean or replace the plugs. New oil, and new fuel filter might make the engine rev a bit more smoothly too... so might be a good idea b4 the dyno.

cheers

[Jedcoyxiicut]

If u want bring your car down later to BMT and i will check it for u. Try giving me a call on 0411757399 to see if i am there first

[predator]

I'm looking at the diagram right in front of me.. From what it sounds like, you've got the air line side of things connected up all fine. As long as you got your pressure sensor rigged between the fuel reg and the plenum all should be fine.

Sounds like something else is going on.. anyway, sounds like the BMT guys can sort it out for you.

[makaveli]

Thanks heaps Gordo ur a great help mate!!!!

Thanks Jedcoyxiicut if got it ready to be seen by Excess Engineering as they aparently distribute all the apexi stuff, although I will contact you if all fails. Thanks heaps again mate!

Also could you tell me how much it would cost for a basic service and dyno tune?

Thanks again guys

[makaveli]

Hey Gordo sorry to be a pain but my pressure sensor is mounted on my firewall is that ok? What do you mean by rigged between the fuel reg and plennum?

[Dr_Drift]

Makaveli - gimme 5 mins on the dyno and I'll map out your boost curve and explain how modifying the duty cycle affects your boost curves.... It's quite interesting....

[Grim]

Dr Drift....how are ya mate?!? Still shredding snow tyres at your secret industrial drift road? hehehehe

Grim.

PS sorry for the thread hijack.

[Dr_Drift]

Hijacker... Deserter!!!!

No more snowies left

Just have to play with.....

[makaveli]

Thanks heaps Dr Drift, I'll definetly be comming to u for dyno tunes and services and stuff. I will need a dyno very soon so i will give u a buzz, also thanks for offering to explain the cycles with me as Im very interested with the dyno stuff

Talk to you soon Mate

Mark

[Dr_Drift]

No probs mark.