Jump to content
SAU Community

Where Do I Tap My Profec2 On Rb26 ?

cobrAA

By cobrAA,
in Engines & Forced Induction

 Share

Recommended Posts

cobrAA Mentor

cobrAA

Posted
Posted

My mechanic is not sure where to tap the vacuum of my Boost controller because the closer lines to the turbo are in metal and he don't want to cut these. He said it's better to have them the closer you can from the turbos.

Any thought??

Would this Tutorial for RB20DET work the same for the RB26 ??

http://forums.gtrcanada.com/gts-tech/t-how...ighlight=profec

Also,

My mechanic is not sure where to tap the vacuum of my Boost controller because the closer lines to the turbo are in metal and he don't want to cut these. He said it's better to have them the closer you can from the turbos.

Any thought??

Would this Tutorial for RB20DET work the same for the RB26 ??

http://forums.gtrcanada.com/gts-tech/t-how...ighlight=profec

Also,

I broke my valve unit harness on my profec2 and I can't find which wire goes where.

So, If you take the back of the unit in front of you. you will find the power harness and the vacuum to your left. Which wire is on the extreme right? white or green ?

Thanks a lot!!!

Link to comment
https://www.sau.com.au/forums/topic/320819-where-do-i-tap-my-profec2-on-rb26/
Share on other sites
nuclear_skyline Mentor

nuclear_skyline

Posted
Posted

HIJACK!

I have realised that my bnr32 doesnt have the solenoid! Its been taken out and the two lines to it plugged up... Could definately be a reason it feels down on power - but my question is should I buy an original solenoid and put it in or just replace the original unit with a profec B???

nuclear_skyline Mentor

nuclear_skyline

Posted
Posted

Before someone makes comment, I do know that I wont be able to adjust the boost via a factory item (not really what I want at this stage anyway but will in the future).

SiR_RB Grand Master

SiR_RB

Posted
Posted (edited)

u sure u dont have a boost tap of some sort controlling boost pressure?

sometimes there hidden or cable tied somewhere hard to see, have abit of a look around, especialy on the turbo side...

Edited by SiR_RB
tuk32R Contributor

tuk32R

Posted
Posted
HIJACK!

I have realised that my bnr32 doesnt have the solenoid! Its been taken out and the two lines to it plugged up... Could definately be a reason it feels down on power - but my question is should I buy an original solenoid and put it in or just replace the original unit with a profec B???

wellyou allready have the profec B, so you may aswell put that in now and just get the boost set to what you want it on now.then you can just turn it up latter when your ready,unless of course you want to buy a stock one,

tuk32R Contributor

tuk32R

Posted
Posted (edited)
So, i have to tap METAL LINES? there's no way to by-pass this!?

yeah you can just run all new boost lines. from the nipple on the plenum to the solenoid and then to a tee peice, from the tee to the 2 wastgate actuators,,, all new, you could take the other pipes off alltogether if you wanted. Oh and dont forget to block off the hose coming from the air connector- the dark blue pipe/hose on the diagram.

Edited by tuk32R
cobrAA Mentor

cobrAA

Posted
  • Author
Posted
yeah you can just run all new boost lines. from the nipple on the plenum to the solenoid and then to a tee peice, from the tee to the 2 wastgate actuators,,, all new, you could take the other pipes off alltogether if you wanted. Oh and dont forget to block off the hose coming from the air connector- the dark blue pipe/hose on the diagram.

OK thanks for the info. I will be checking this saturday.

tuk32R Contributor

tuk32R

Posted
Posted
why do need to block of the blue hose in the diagram between the two wastegates ? mines still connected and seems to run/idle/boost perfectly !

If the blue line isnt blocked off you will have an air/vacume leak cause that joins to the inlet pipe from the airflow meter.So if im correct it will be sucking in unmetered air ,does that make sense?

SiR_RB Grand Master

SiR_RB

Posted
Posted (edited)

the blue hose that goes into the inlet pipe between the 2 wastgates ? follow that around and it goes to the old boost control solenoid....thats not in use anymore so can it still get a pressure leak?

if thats the case il block it, got no probs with the car at all but might aswell do it lol

Edited by SiR_RB
tuk32R Contributor

tuk32R

Posted
Posted
the blue hose that goes into the inlet pipe between the 2 wastgates ? follow that around and it goes to the old boost control solenoid....thats not in use anymore so can it still get a pressure leak?

if thats the case il block it, got no probs with the car at all but might aswell do it lol

Im not sure it can leak if still conected to the stock solenoid,if your cars runs fine it mustn"t leak, but it cant hurt to block it off..up to u i guess :D

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

    • Kinkstaah
      NC MX5

      By Kinkstaah · Posted

      You ask for things. You specifically state you want responsiveness. A link was provided for a far superior, more responsive option. Find a MX5 workshop that will install it for you. Maybe MX5 Mania will throw on the Fab9 kit. It seems they want to charge almost 14K installed for their kit, so if they charge you $6K to install the FAB9 kit then you'll be ahead? Though really, the 2.5 with a 2860 running low boost will more or less feel as good as anything else. It's a lot of displacement and a small turbo. Think of a more modern RB26 with one stock turbo :p TBH, truth be told I've been driving my own car, and use about 50% throttle at most for 99.9% of the time. Mr Bogan is likely similar so this is all going to be semantics for the use case he actually has. (He'll be happy with anything relative to now) However, the EFR is hands down far superior in this use case. You really, really, really, really do notice it over the Garrett or equivalent.  
    • Dose Pipe Sutututu
      NC MX5

      By Dose Pipe Sutututu · Posted

      You are correct, the earlier the torque, the earlier things snap
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Gents, it will be getting the MX5 Mania kit and the 2.5 will be staying where it is My query was about the 0.64 or the 0.86, whilst the 0.64 might spool a bit faster, would the 0.86 be better IRT EGT and mechanical sympathy, with only a small difference in spool And as I assume I won't need alot of boost to get to 200kw, probably around 10 psi, and with max rpm at 6500, would high EGT even really be a issue with a 0.64 I'm heading into MX5 Mania at the end of Jan to discuss the install, so any info is welcome prior to that Basically have a chat and book a time so they can throw on the turbo kit, and fit a oil cooler with a thermostat, drive in drive out of course  In other news: just finished cleaning the car inside and out, it's now all ready to get covered in bugs and dirt driving to Goulburn tomorrow to lunch,  and go for a stroll along woolondilly River with the daughter and her boy, and of course, visit my grandcats and my new grandpuppy 
    • GTSBoy
      HY51 Fuga Hybrid

      By GTSBoy · Posted

      Sounds like it has an actual problem with mode select doors, or something.
    • alburger87
      HY51 Fuga Hybrid

      By alburger87 · Posted

      Hope your all having a mean Xmas! If anyone happens to know any trick to using the insanely complex climate control system, I cannot get it to not be on dual zone no matter how many times I deselect it (will say it's not but both vents blow different temps). Also one side is always hot, one always cold 🤷
×
×
  • Create New...