peter22

could someone please explain how to install the above in to a my97 turbo, as the supplied instructions arent very clear, ive installed the wireing harness and the wires to the ecu but unsure about the pipework under the bonnet, ie connecting the pressure sensor etc, also some info on setting up the duty rates etc,
thanks for your help.

Daniel-S

Someone will be along soon

peter22

AlanG

you got this?

peter22

yes ive got that, and ive read it, just not very easy to understand, dont want to install it wrong, as the instructions arent that great..

AlanG

try this thread
Failing that type in avcr under advanced search and make sure you click for titles only, not, all posts

peter22

thanks ill try it and see how i get on,

Jolly Green Monster

iTrader: (4)

Sorted?? don't want to type it all in if you know already.

Peanuts

iTrader: (15)

The apexi-usa instructions are pretty good I thought.
print out the wiring diagram for an ej20 and away you go.

peter22

i wont be able to finish fitting it till sunday, but will have a go and report back as im bound to go wrong somewhere

peter22

peanuts- do you mean the diagram for the ej20h? isnt it a twin turbo engine, a legacy?? or is it basicaly the same but with the extra turbo.

Peanuts

iTrader: (15)

its only the wiring diagram to show which wires are connected into which on the ecu.
you then only have a pressure sensor and boost solenoid to plumb in, both very easy to do.
Take your time and it will be fine

peter22

could someone quicklky tell me what order the pipes from the boot control valve connect to the turbo etc, save me searching again, please

DABALLS

HI THERE MATE JUST FINISHED FITTING MINE LAST WEEK,YOU NEED TO PUT THE ACTUATER TO THE (COM )PORT AND PUT THE (NO)PORT TO THE TURBO HOUSING. AND YOUR PRESSURE SENSOR NEEDS TO GO IN THE PIPE FROM THE FUEL REG TO THE INLET MANIFOLD. AND THERE YOU GO JOB DONE. AND JUST SO YOU NO IT SAYS IN THE BOOK TO DISCONECT THE OLD BOOST SOLENOID PLUG THIS MADE MY ENGINE LIGHT COME ON SO I PLUGED IT BACK IN

peter22

do i tee the pipes in so there in the same configuration as the original ones but going through the apexi boost valve instead of the oe one.
so i should just com port to the actuator and no port to turbo housing where intercooler pipe connects to turbo

Peanuts

iTrader: (15)

just make the direct connections and remove the original pipework.

peter22

have connected the pipes up, all seems ok, what should i initialy set the boost pressure and duty to? also before i fitted the apexi the boost gauge only reach 0.5 bar, which seems a bit low?? although i have replaced the turbo hoses etc, with some fancy blue ones, but havent refitted the little brass restrictor,that ive read about, would this cause low boost? dont no what it was boosting to before as only just fitted gauge,
finally, do you need the restrictor with the apexi avcr installed?
car is a my97 if that helps
sorry for the ramble but better post it before i forget it.

peter22

finished fitting now, anyone no what the standard boost pressure for a my97 is, in kg/cm2 if poss as thats what the avcr measures in,

peter22

i set the target boost to 0.5kg/cm2 initially as didnt no at the time wat standard boost for my97 and thats wat it said on boost gauge,(read above) and the duty to 40%,?? went for run, according to to avcr made 0.68kg/cm2 at 4333 revs and 51% solonoid duty, i think this boost pressure is to low,
any ideas where to go from here, just want the car to be running standard boost.

Peanuts

iTrader: (15)

set the boost pressure target to 0.9kg/cm^2 in "setting" <A>.
If you ever want it to run 0.5kg/cm^2 just change it to setting <off>.
when up to 0.9bar, monitor to see if you hit target boost, and whether its slow to spool or ok.
best to write it down straight away on a slip of paper
come back with the results and we can hazard a guess at adjusting the duty up or down for you.

peter22

set the boost to 0.9kg, and 55% duty, after a run max boost was 0.88kg and a solonoid duty was 90% but only at about 4500 revs(these were peak values), turbo seems to spool up fairly quickly,but could prob be better..........

Peanuts

iTrader: (15)

you can up the duty in specific rev areas if its not holding boost all the way, you can also increase the duty at the lowest end of the scale if its taking ages to spool up.
go for a run with a mate and get him/her to log the revs where its not holding max boost, then increase or decrease the duty at those rev values.
with a little bit of faffing about you can get the avcr to hold nice solid boost throughout the whole rev range.
just keep adjusting the duty and trying again til its spot on.

ZEN Performance

The peak of 90% will occur up to 500rpm below the minimum ne-point. After that it will go by the duty you set in the duty cycle menu. There is alot of setting up on an AVCR, ideally you need the following for best results.

Wire up RPM pickup (not injector) to avc-r
Set gear judge valves
Set self learn flags
Set FB-speed for each gear
Set initial duty for 1-4 gear
optimise duty cycle map for each setting (A and B).

Paul

peter22

i have the ne points set at 3000,3500,4000 etc, feed back speed is 33333, all the duty settings for the different rpms are set at 0% at the mo, are these the ones i adjust up and down, i thought the unit was supposed to learn the solonoid duty, it is wired to rpm not injector signal, will have a fiddle over the next few days and see what occurs,
thanks to everyone whos helped so far,

ZEN Performance

you need to set up the specific values for the gear judge in the "etc" menu. If you don't do this, the gear dependant settings will be up the shoot.

The unit will self learn if the actual boost is reasonably close to the target, and the duty cycle is steady. Ideally turn off self learn for gears 1-3, and possibly 4th too.

Try raising the FB speed in each gear, for the lower gears, 6-7 is okay, for 4th and 5th you are probably looking at 4-5 depending on your overall setup (turbo, exhaust, actuator etc).

To self learn, I would try it in 4th gear and start from below 3000rpm and floor it, it will adjust the duty cycle for each RPM point as it goes, but it can take a few tries, and isn't always successful. Probably a good idea to keep the FB-speed a notch lower if you're trying to get it to self learn.

Once you're happy with the response in 4th and 5th, try increasing the initial duty cycle for gears 1-3 and you should see an improvement in response in those gears.

If you want an easy controller to setup but still works well, then Greddy Profec B is a good choice.

Paul

peter22

how do you set up the gear judge values, highlight first then drive and enter the number that comes up, then highlight 2nd and drive in second etc, drive fast or steady, or just start in first and drive through to 5th

ZEN Performance

as per first suggestion, different value for each gear.

peter22

ive now set up the gear judge, and the unit seems to have gone into self learn mode, *** appears on the boost/duty setting screen, also duty has changed from 55% to 56% in the first 3 gears, ive left gear learn on in all gears at the mo, rpm dutys are all set to zero, feedback speeds are 66644, to get a bit more response in the lower gears do i just up the duty in those gears by say 1-2%