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Who's using HKS EVC Boost Controller

meshmesh
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meshmesh Mentor

meshmesh

Posted
Posted

We've just fitted the EVC 4, and have a few problems....

1. If I set the High Boost to say 1.1bar, the boost reading goes upto 1.2-1.3, but on the dyno the boost is holding spot on.

2. Had a mate look at the instructions, and he thinks the LOW boost setting is when the controller starts to open the wastegate for spooling & the HIGH boost setting is the limit of boost. I thought he was crazy, because as I understand it, the LOW boost is for lazy driving & the HIGH boost is for everyday driving. But after some testing, I think he is correct, maybe someone can test it themselves? When I set my LOW Boost to eg: .5 and HIGH to 1.1 the boost comes on smooth and early, if I set my LOW boost equal to my HIGH boost, the boost is much more agressive and comes on later.

I'm running HKS Silver Actuators which I believe are .9 ~ 1bar, If I'm setting my EBC LOW Setting below this figure, is it useless having these actuators?

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KamikazeR33 Grand Master

KamikazeR33

Posted
Posted

from the experience i have with mine

i used to have my low boost set at .5 bar and high of .75 bar and it seemed correct according to the boost guage

thats how it worked for me so thats my understanding of it

Emre Proficient

Emre

Posted
Posted

Your mate is incorrect.

EVC has two boost settings, hi and low. Their adjustments do not have any effect on how the boost comes on and judging it by the seat of the pants can be misleading.

If you have 1 bar actuators, you can't set the low boost below that. Simply, the boost controller can not hold boost at 0.5 bar, if your wastegates don't open tilll 1 bar.

So, set your low boost at minimum 1 bar and high boost to whatever the car has been tuned to on pump fuel. If it isn't holding boost correctly it can be fined tuned with the offset feature. FWIW, mine is set at 1.40 bar and never gets touched, would you set your rev-limiter at 6000 rpm...?

The best way to monitor your boost levels is on the dyno, as the peak hold values shown on the hand controller doesn't mean much. Saying that it's common for an EBC to behave differently on the road compared to the dyno, if a high ramp rate have been used.

  • 1 month later...
meshmesh Mentor

meshmesh

Posted
  • Author
Posted

Just thought I update this thread...

My problem is all fixed now.. turned out the evc needed a RESET & LEARNING MODE run. I basiclly followed the instructions as detailed in the EVC setup manual. The boost now holds/reads perfectly, and the OFFSET mode setting is spot on 100 where it should be.

After the RESET & LEARNING MODE runs, I also turned off the AUTO ADJUST setting as specified in the manual which it recommends to do, simply by: Turn the Ignition to ON, holding the MOD button, flick the SW-PO switch > wait for the beep (still holding te MOD button) then return it SW-PO to it's original position and you should hear another beep.

So if anyone is having issue with boost readings going over the set boost levels, and you cannot adjust your OFFSET any more (eg: 50 or 150 - like me) just do the above or refer to the manual.

tang0 Proficient

tang0

Posted
Posted

Does anyone have an evc 4 pdf manual ???? or know where to get one ...

i have an evc 4 sitting in a box, waiting to be fitted as soon as I move into my new abode, and get to unpack all the boxes ..

and i'll be buggered if I can remember how to install it. had it in my mr2 turbo first, then pulsar gti-r, now the skyline ... rar

also ,i have not taken delivery of the car yet ...

i managed to get a grade 3.5 gtst s2, in solid red ... a rare colour as far as I can tell ...

anyway, if anyone does have a manual, can you forward it to :

barry@host32.com

Thanks very much ...

rb25 Grand Master

rb25

Posted
Posted

When you first install the evc you have to let it learn your actuator. go for a drive, put it in 3rd and from 2000rpm floor it to redline. Then tune it from there. I have the ricey EVC5 and its a really good controller imho.

-rb25

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