HKS black box

[mickr33]

I have recently discovered that this box is disconected doing sweet bugger all. I now know that the boost is controlled via a solinoide hi low switch (bleed valve) type set up. My question is that should i persue in getting this hks box believed to be either a EVC or EBC, reconnected or just stick with the current set up. Note that of the box there is a wiring harness going inside the cabin connected to nothing. Any info on this item or suggestions would be greatly appreciated.

[caminperth]

If the black box is under the bonnet, which it sounds like it is, then it could be the solenoid for a hks evc 3 or 4. However, I think it's pretty worthless without the electronic controller that goes in the cabin.

[mickr33]

Cam do you think it's worth trying to purchase a electronic controller or not.

[tang0]

the hks evc4 manual states that the solonoid will not work unless the serial number matches the in cabin control unit ....

nice of them to do that huh ...

[mickr33]

Is this system a much better set up as apposed to simple bleed valve set up.?

[tang0]

in a word - yes

i have used this evc for years on many different turbo cars, i had friends with bleed valves, and i can honestly say that i would not use a bleed valve ...

dont get me wrong, there is nothing really wrong with the bleed valve, but the evc learns the boost curve of your turbo, and closes the wastegate at the right time for your turbo thus getting maximum boost at low revs ...

well, in the seat of my pants this is how it feels ...

gotta go and do a learning run in a moment actually as now have the gcg high flow fitted, the evc needs to know how it performs ...