Jump to content
SAU Community

Hks Evc Iii Installation

brother_david
 Share

Recommended Posts

brother_david Rising Star

brother_david

Posted
Posted (edited)

I recently received my 1994 R33 GTS-t, it got 5Zigen exhaust-system, HKS induction kit, apexi boostgauge (unfortunetly it leaks, to be replaced) nismo adj. suspension etc. etc.

Its still winter here with ALOT of snow everywhere, hopefully spring will hit in 1-2 weeks, so meanwhile im installing my HKS EVC III (3).

Now, my 2 questions are:

1. One of the vacuum-hoses from the solenoid is supposed to be going directly to the intake, and according to the installation-manual NOT to the same hose as the Fuel pressure regulator, UNLESS it specifically said to do.

Now my problem is that i've heared that the same goes for a boostgauge, "NOT to the same hose as the Fuel pressure regulator, UNLESS it specifically said to do", but my boostgauge is connected to the same hose as the FPR, and im wondering if that's right, and if im supposed to be using the same hose for the solenoid?

2. Another one of the hoses from the solenoid is supposed to be going to the turbo compressor-side or to the pressure-pipes BEFORE the intercooler.

My problem here is that as far as i can see it doesnt have an appropriate vacuum-nipple on the turbo, or the piping before the IC, altough there is one close to the IC on the pipe from the IC to the intake, is this "to late" on the piping, or can i use this nipple?

Hoping you can help me with these 2 problems!

Cheers!

-David

Edited by brother_david
Link to comment
https://www.sau.com.au/forums/topic/109223-hks-evc-iii-installation/
Share on other sites
BHDave Grand Master

BHDave

Posted
Posted (edited)

1) You can tee the boost pressure signal into the line for your stock boost gauge. I think it is a 3mm hose and there is a nipple on the back of the head for it. I also run my aftermarket boost gauge off the fpr line, though i wouldn't want to start running multiple things off it. Some don't like it, some do. The good thing about having your boost gauge on it is it is really obvious if you have blown the hose off as you have no vacuum at idle showing on the gauge.

2) The pressure inlet to the solenoid that you have mentioned will be fine. If it doesn't work right then the easiest way is to get a nipple brazed into the compressor outlet pipe.

Edited by BHDave

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kapr
      RB20DE NEO smallbox clutch.

      By Kapr · Posted

      For once a good news  It needed to be adjusted by that one nut and it is ok  At least something was easy But thank you very much for help. But a small issue is now(gearbox) that when the car is stationary you can hear "clinking" from gearbox so some of the bearing is 100% not that happy... It goes away once you push clutch so it is 100% gearbox. Just if you know...what that bearing could be? It sounding like "spun bearing" but it is louder.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      Yeah, that's fine**. But the numbers you came up with are just wrong. Try it for yourself. Put in any voltage from the possible range and see what result you get. You get nonsense. ** When I say "fine", I mean, it's still shit. The very simple linear formula (slope & intercept) is shit for a sensor with a non-linear response. This is the curve, from your data above. Look at the CURVE! It's only really linear between about 30 and 90 °C. And if you used only that range to define a curve, it would be great. But you would go more and more wrong as you went to higher temps. And that is why the slope & intercept found when you use 50 and 150 as the end points is so bad halfway between those points. The real curve is a long way below the linear curve which just zips straight between the end points, like this one. You could probably use the same slope and a lower intercept, to move that straight line down, and spread the error out. But you would 5-10°C off in a lot of places. You'd need to say what temperature range you really wanted to be most right - say, 100 to 130, and plop the line closest to teh real curve in that region, which would make it quite wrong down at the lower temperatures. Let me just say that HPTuners are not being realistic in only allowing for a simple linear curve. 
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I feel I should re-iterate. The above picture is the only option available in the software and the blurb from HP Tuners I quoted earlier is the only way to add data to it and that's the description they offer as to how to figure it out. The only fields available is the blank box after (Input/ ) and the box right before = Output. Those are the only numbers that can be entered.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      No, your formula is arse backwards. Mine is totally different to yours, and is the one I said was bang on at 50 and 150. I'll put your data into Excel (actually it already is, chart it and fit a linear fit to it, aiming to make it evenly wrong across the whole span. But not now. Other things to do first.
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      God damnit. The only option I actually have in the software is the one that is screenshotted. I am glad that I at least got it right... for those two points. Would it actually change anything if I chose/used 80C and 120C as the two points instead? My brain wants to imagine the formula put into HPtuners would be the same equation, otherwise none of this makes sense to me, unless: 1) The formula you put into VCM Scanner/HPTuners is always linear 2) The two points/input pairs are only arbitrary to choose (as the documentation implies) IF the actual scaling of the sensor is linear. then 3) If the scaling is not linear, the two points you choose matter a great deal, because the formula will draw a line between those two points only.
×
×
  • Create New...