Jump to content
SAU Community

Recommended Posts

All,

Managed to get some time at the weekend to install my evc IV, i've had it sat around for ages, was on my mr2 turbo, then the wifes pulsar gti-r - now both cars have gone, it i reclaimed it for the skyline ... anyway, having installed it both on the mr2 and the pulsar, thought it would be a fairly straight forward job on the line as well ....

well, i STRUGGLE to find a pre-intercooler port to T off for the valve controller, it requires a pre intercooler, post intercooler (throttle body) and actuator plumbing ..

my question is this - I cant be the only person to have installed one of these - where do you get the pre intercooler connection from ????

cheers

Link to comment
https://www.sau.com.au/forums/topic/49463-hks-evc-iv-installation/
Share on other sites

I know WHAT is needed, its WHERE

yes there are dozens of post intercooler outlets, and thats fine, its the PRE intercooler ... could not SEE anywhere to T off from, unless there is something i couldn't see / feel ...

Where would your waste gate normally get pressure from? that is where you T in the pre intercooler.

Post Intercooler, anywhere on the head with pressure.. there are dozens.

Well obviously you have a stock turbo... and the stock turbo has to have a wastegate.. this wastegate has a pipe the gets pressure, normally off the side of the turbo compressor housing.

This is where you take the pressure for the boost controller. Then the out of the Boost controller goes to the wastegate.

and i say yet again, i know WHAT i need to find, its where to find it

the actuator has a pipe that goes to the actuator solonoid, the thing that controls 5 or 7 psi, this in turn has 2 pipes comming from it, both which seem to go to the post intercooler line ....

on the other cars i have fitted an evc to, the watstegate actuator has its line plumbed directly to the pressure side of the turbo housing ... THIS (as you correctly state) is what i am looking for, but there does not seem to be a connection on the pressure side on the turbo house on this turbo.

and yes, it is a standard turbo.

/me sighs

i'll be back under the bonnet at the weekend to try and look for it.

Well obviously you have a stock turbo... and the stock turbo has to have a wastegate.. this wastegate has a pipe the gets pressure, normally off the side of the turbo compressor housing.

This is where you take the pressure for the boost controller. Then the out of the Boost controller goes to the wastegate.

Ah I see, i forget about the solenoid.

I have ran all my EVC boost controllers with pressure post intercooler from the pleenum. This is on a GTR.

On GTS-Ts etc I had always ran them pre intercooler It dosn't really seem to make any difference.

I would just take the pipe that supplies pressure to the solenoid (the other one will be a bleed) even if it is post intercooler.

But if you are really worried about long pipe length and the EVC not getting the signal fast enough.. just tap into your intercooler pipe. Drill a hole.

SOLENOID

------------

|......Port 1.|---> intercooler pipe where the standard wg actuator plumbs (before throttle body)

|......Port 2.|---> to the wastegate

|......Port 3.|---> to T-piece in the fuel pressure reg line (manifold - FPR)

-------------

-rb25

Thanks for all the post but OMG !!! are people NOT reading my posts !!!

I KNOW HOW TO PLUMB IN THE EVC

i am asking WHERE a PRE intercooler outlet is, NOT what it goes to on the EVC

sorry for the outburst

GTR-Ben -

the reason to get that feed pre intercooler is so that the evc is not overworking the turbo, to get, lets say 10 psi, at the plenum the turbo has to work harder than if you measure to get 10 psi at the tip of the turbo housing, this is because the turbo has to work to pressurise the whole of the intake system before you start measuring at the plenum.

The EVC IV has the inputs to read pre and post intercooler, as rb25 points out, this is port number 3 it then calculates the offset between the 2 and delivers the output required ....

anyway,

didn't get a chance to look for it at the weekend, and don't like the idea of looking for it after work, when the turbo is nice and hot, and its a bit dark ... guess it'll have to wait until this weekend when the wife has friends over ! :D

and I already have the EVC IV manual pdf'd in case anyone wants it ...

thanks anyway

um

thats not right

have been under the bonnet this afternoon (working from home is great !)

anyway, the solonoid has TWO pipes, one that plumbs back to the inlet (post afm, pre turbo) and one that goes to the actuator. There is DEFFINATLY not an outlet pre intercooler ...

its looking like i either stick with a post intercooler feed, or drill and tap a hole :cheers:

The stock solenoid has has 3 lines.  1 goes to wastegate, 1 is a bleed return line, which plumbs into the AFM to turbo inlet pipe - this is for emissions purposes.  The last one, is the pressure line from the turbo oulet.

So, it is just a process of elimination.

be screwed if I could tell !!!

there is DEFFO 2 lines comming from solonoid, DEFFO one goes to actuator, and one goes back to pre turbo inlet ...

VERY strange ..

am taking line from post intercooler currently, and its working, although i am getting a few spikes, ebc is set to .7 of a bar, and comming off boost under hard driving will spike to .8, and running uphill slightly under hard boost will be running at .75

anyway

if anyone wants to have a look, and is in the shire, then please feel free to pop over and see ..

well if it has TWO lines, where does the pressure come from to open the wastegate??????

Well as I said, every GTR I have ever seen or installed a EVC on has got pressure post intercooler.. should be ok for your car too.

Yes I know it's best to get the reading pre intercooler so it's getting the actual pressure the turbo is creating.. but unless you have a huge pressure drop at your intercooler.. it's really not going to matter.

It has never caused me any problems.. a .05bar spike is ok

There must be a line that feeds pressure to the wastegate solenoid or you would be free boosting..?

The line to the wastegate isnt via a T peice is it?

possibly was, cant remember now

but now you mention it, it could well have been ....

be interested for someone to check out their standard setup and see what goes where

am just using the post that is post intercooler and making do with that ....

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...