Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: craig on September 18, 2005, 04:31:06 PM

Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 04:31:06 PM
hi all  just had a lovly morning    fitting  my boost controler back  on after having it disconected.
does any 1 know the settings for the hks evc 3   as all it does is over boost  
Gain  ratio settings and also max boost psi/bar as its set to boost  to 8 bar at the mo  
oh  and what would be the best clutch to fit  as now it seemed to slip abit  lol  1 thing after another  :cool  :evillaugh
thank you for any help you could give me its on a 92 fd3 btw :)
Title: HKS evc 3 settings help
Post by: Trevrx on September 18, 2005, 06:07:04 PM
Hey Craig,

I\'ve got the original HKS EVC which works a treat at controlling a boost spike I had after de-catting.
It hasn\'t got gain ratio, but are you saying you set it for 0.8 bar and it over boosts?
Have you tried it turned off?  Should get 0.5 bar.  If not perhaps you haven\'t disconnected the vac pipe from wastegate actuator to wastegate solenoid valve?
Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 06:14:38 PM
i set it  for 0.8   did not know what the right max boost is for a rex   when i turn it off  it works like it used to  and everything is ok at 0.5.Its the other settings ect on it   that im unsure  of, what they should be set to.  It had been in the car befor  but not when i had it   they had put red and white dots on the pipes to conect it back up   so that was no prob.Its just the settings on the unit its self im unsure of  as it seems to back the car off    and some god awful  beeping sound comes on and will not go off  :?
Title: HKS evc 3 settings help
Post by: Trevrx on September 18, 2005, 06:40:16 PM
Stock boost is 0.7 bar.   What mods have you got, dont wanna run too lean with too much boost.

Sounds like an overboost warning beep?  Mine doesn\'t have that.

Take a look at this website and you\'ll see a link for the evc3 instruction manual.

http://www.hksusa.com/faq/?ID=1647
Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 06:49:17 PM
it only boosts to 0.5  always has  well since i got it. cant say i have to many mods    uprated rad and intercooler   and a feed induction kit    kps racing zorst. i think it might be  running  lean  as it   flames   in most gears .lol  but im  told  they all do that.
 ill  go over the manual    and see if i can see anything  thank you  for ya help  m8
Title: HKS evc 3 settings help
Post by: Trevrx on September 18, 2005, 07:16:15 PM
It was prob only boosting to 0.5bar because the wastegate solenoid valve was disconnected when they originally fitted evc.
Sounds like you have a de-cat mid pipe same as me, that\'s a big mod in itself.
Much gd fun tho, mine shoots 10 ft flames lol!

0.7 bar is still safe AFR with stock ECU (some say it isn\'t), but anything more is risking det.  I run at just over 0.8 (12psi) and haven\'t had any probs yet.  Thinking about an Apexi FC tho to be safe.
Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 07:34:27 PM
just tryed  setting it up off the manual  cant get it to work right :(   so have turned it off  so should be back to stock  but she now  does not tick over right  and chugs   like fuel is not getting through   :(  i could cry
Title: HKS evc 3 settings help
Post by: bnaellis on September 18, 2005, 08:51:10 PM
Quote from: craigjust tryed  setting it up off the manual  cant get it to work right :(   so have turned it off  so should be back to stock  but she now  does not tick over right  and chugs   like fuel is not getting through   :(  i could cry

Post a pic of it up as I don\'t remember off the top of my head what they evc 3 looks like. Some of the models are quite the opposite for setting up.
If you get a pic I can instruct you how. Probably only getting that boost due to not setting the gain.
Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 10:23:43 PM
ill  get a pic sorted but the problem with the car now is that it chugs and trys to gut out   is not ticking over right at all ill try and sort out a sound file of it.its like  say  you   turn a corner in to hi gear  and there is not enough  fule  getting through    so the car chugs well its like that  but  im in the right gear:?
Title: HKS evc 3 settings help
Post by: craig on September 18, 2005, 10:35:16 PM
here is a pic  ill have ta get a better 1   you can just make it out in top of the Steering Wheel (//%5BIMG%5Dhttp://img.photobucket.com/albums/v337/craig-york/Craig4.jpg)[/IMG]
Title: HKS evc 3 settings help
Post by: bnaellis on September 19, 2005, 12:04:22 AM
I can\'t see clearely but I think I recognise it. to have approx .8 bar of boot set your boost to .8 bar and set the gain to approx 85 and it should be fine if all wired up ok.

rgds
Title: HKS evc 3 settings help
Post by: Trevrx on September 19, 2005, 12:34:30 AM
I dont like the sound of the chugging Craig, how high you been boosting? Are you on stock ECU?  Hope you haven\'t chucked a tip mate.  Mine chugged like that when I did, and would struggle like feck to tickover with air con turned on. Is it high mileage?
Title: HKS evc 3 settings help
Post by: craig on September 19, 2005, 09:16:30 AM
well  she has dun 63000km   but was rebuilt   by pip   about 5-6 months  ago it was all run in well  and the car has been running fine as stock on stock ecu  boosting to 0.5  now with the evc on  i set it to  boost to 0.8   and all goes to pot.if it has chucked a tip   how much was it to fix? is there any chance i could of just dun somthing to the  settings on the ecu  and just resetting that would fix it.
Thank you all for your help
Title: HKS evc 3 settings help
Post by: Trevrx on September 19, 2005, 04:45:10 PM
You should be ok boosting at 0.8  ,  did you get any big spikes over 1bar when you were testing it yesterday?  Do u use ordinary unleaded in it?
What rpm is it tickin over at now?
Title: HKS evc 3 settings help
Post by: craig on September 19, 2005, 10:17:57 PM
she only went to 0.8  nothing over    i run her on   Optimax  only stuff she seems to work with   runs realy odd with bp  she tickes over at just under 1000 rpm  around 800   mark  but she always sat it that when warm   and  sat at 1500  for a few mins  when cold.im  going to put the old piping back on and take the evc   out  just hope it goes back to norm  will try  resetting the ecu as well   ya never know just praying its not a tip  as i will have to get rid if it is,what was the cost  btw   when yours went ?
Title: HKS evc 3 settings help
Post by: Trevrx on September 20, 2005, 06:02:48 PM
The cost was a re-build, but had done 65k miles anyway.

Mine was about 500rpm at idle, rough as feck and wouldn\'t tick over with air con turned on - just struggled.   Boost guage was jumpy at idle too.  Still pulled like a train tho!
If urs idles at 800 thats gd,  so its just chugging when you floor it?
Title: HKS evc 3 settings help
Post by: craig on September 20, 2005, 10:16:05 PM
no  just when going slow   on pick up   if i drop it down a gear    and boot it  she is just as norm    and everything  behaves the same boost turbos the lot  its just at low revs   going slow  i dont sopose it could be anything funny like my clutch as i have been needing a new 1   and all it did was burn   when i had the evc hooked up  they dont do that when they slip do they
Title: HKS evc 3 settings help
Post by: Trevrx on September 21, 2005, 12:16:43 AM
No, clutch wont cause that.  
I wonder if its a bad O2 sensor , when u floor it it goes into open loop so would drive normal again.
Or try this 1st, being as it only started happening after u connected the evc, did u dislodge the ground strap - firewall to UIM?  I\'ve heard of similar symptoms caused by bad ground.
Is it worse with A/C turned on?
You could try adding an earth strap from battery neg to chassis.
Title: HKS evc 3 settings help
Post by: craig on September 22, 2005, 11:13:03 AM
ill take the  evc out on saterday   only  time i have to look at it because of work :(   been looking in to an earth strap looks like they are a good idea :)
Title: HKS evc 3 settings help
Post by: craig on September 22, 2005, 12:33:06 PM
just taken her for a run   i sat her on the drive for 5 mins ticking over  and   she seemed ok  so took her out with air con on  as you said  and revs did  not  drop  but  still does not pick up right   im wondering if it could be the sparkplugs  or somthing /  still be the weekend befor   i can fully have a look  :)
Title: HKS evc 3 settings help
Post by: craig on October 01, 2005, 11:29:00 PM
right  got the car back to stock  well evc off anyway ,i think its  just not firing right    and have got to thinking that all of the cars probs are because it needs  better spark plugs as its just running the stock 1\'s at the mo.going to get some on order and have a go at changing them    the oil and fule filter  at the same time