Jump to content


Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse
 

Photo
- - - - -

Subaru 93 Gt Turbo Lag?


  • Please log in to reply
5 replies to this topic

#1 Scobaru

Scobaru

    New User

  • Members
  • Pip
  • 4 posts
  • Auckland

Posted 03 December 2011 - 06:35 PM

Hey guys ive recently brought a 93 2nd Gen sedan EJ20TT.
Everything is completly stock engine wise so yesterday i installed a B.O.V and a Pod Filter,
And Now my first turbo is lagging for like 5 secs in 1st gear
Im Pretty sure i did everything correctly as they were both just bolt on,

Posted Image

Posted Image

anything i could do to not lag?

Edited by Scobaru, 03 December 2011 - 06:38 PM.


#2 Turbone

Turbone

    The Original Rob

  • Moderator
  • 12,120 posts
  • WA

Posted 03 December 2011 - 10:34 PM

Yes, remove the bov. Venting to atmosphere is bad to do.

#3 rxleone

rxleone

    Subaru Fanatic!

  • Members
  • 528 posts
  • Christchurch, New Zealand

Posted 03 December 2011 - 11:42 PM

Yeah dude, EJ20TTs aren't exactly the most reliable engine to start with, and a vent-to-atmosphere BOV is not something you want on there. Plus they can mess with the pressure balance between the two turbos in the crossover, at least I'm pretty sure that was the cause of my brother-in-laws EJ20TT problems before it blew up on the North Western. :-p

#4 Scobaru

Scobaru

    New User

  • Members
  • Pip
  • 4 posts
  • Auckland

Posted 04 December 2011 - 03:14 AM

I had a look at it properly today turns out the hosing on my frist turbo managed to slip off the front of the turbo :/ so i hooked that back up but i think its best that i hook up a recirculating bov.

#5 rxleone

rxleone

    Subaru Fanatic!

  • Members
  • 528 posts
  • Christchurch, New Zealand

Posted 04 December 2011 - 04:49 AM

That'd do it too haha, yeah plumb back BOVs are the way to go, circulating BOVs sound cool but do nothing for the life of your turbo. Nice buy though, keep oil in it and keep it in top shape and it should last you quite a while! How many KMs on it?

#6 roostema4328

roostema4328

    USMB Regular

  • Members
  • PipPipPip
  • 113 posts
  • Belgrade, MT

Posted 04 December 2011 - 01:35 PM

yeah you should not use a vent to atmosphere bov on a vehicle that has a MAF sensor. It will cause driveability issues because the MAF sensor measured that air already that you are venting. lol

If you use a standalone like I did on my TT. you can make it run without the MAF and just use the MAP sensor. It wont effect it then. I actually am in the process of modding a WRX intercooler on to mine. I welded all the doors open on the switching devices and deleted the BBOD. I will then use one BOV on the wrx intercooler and put a external wastegate on the front crossover pipe. Then it will tune like it has one really big turbo. ha ha.




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users