Jump to content
Please check your junk folder for registration emails ×
  • Current Donation Goals

    • Raised $0.00

GF8 not much boost?


syy0628

Recommended Posts

Hi,

I have owned my MY99 WRX wagon for about nine months now, it is stock apart from strut brace and swaybar. The car is much faster than the Suzuki SX4 I used to drive back in China, but a mechanic (who have driven lots of subarues) told me that the car is definitely low on power. "I don't feel any boost at all" he said.      And I also feel the car is a bit slower than when i first got it, it used to have the blow pass valve noise when let off the throttle, but I haven't heard it for quite some time. I can still hear the turbo spinning up from around 3000rpm if the window is closed    What might be the problem?  I also noticed the rpm drops to almost 500 sometimes when idling, and then it goes back to normal.(about once in a week)     My idea is to install a boost gauge and see if the boost is normal.  Does anyone have ran into this kind of problem before? any advice would be helpful, thanks

Link to comment
Share on other sites

9 hours ago, syy0628 said:

A more generalized version of the question above

 

How can u tell if the turbocharged car's power is at the normal level without going for a dyno?

When it pushes you back in the seat and you go holy S***..

Link to comment
Share on other sites

On 12/7/2016 at 7:26 AM, pedro said:

When it pushes you back in the seat and you go holy S***..

Thanks for the reply, this is my first car, I went holy S*** when I first got it, but now it is less exciting.

I just got a boost gauge installed, I am reading 18 vacuum at idle, and around 12psi of boost, my car has a 160kw ej205 engine with td04 turbo, is that level of boost normal for a old stock car? I read somewhere that a stock wrx should have around 14psi boost?

Link to comment
Share on other sites

10 hours ago, evowrx said:

Sounds about right iirc. Easiest thing would be to get @PBMS to run it on the dyno to see if its doing what it should. 

How much would it cost to do a dyno?  I plan to check leaks around blow pass valve(I have cleaned throttle body and didn't replace the blow pass valve gasket) and check the waste gate pre load. Then may be go for a dyno. There are some model with the same engine and turbo combo that is running 250 ps from factory.  To achieve that level of power, (from 220 to 250) do I need to get it tuned by professionalor i can just play with the waste gate preload? Thanks 

Edited by syy0628
Link to comment
Share on other sites

  • 2 months later...

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

  • Recent Status Updates

    • MrSg9Sti04

      Afternoon team,
      im new to the group first time posting. Im hoping some body can help me get my launch control all dialled in on my link g4x. Ive had the computer and car all tuned from chris at prestige awesome knowlegable guy super happy with the results but now im wanting to get my launch/anti lag all dialled in. Ive been reading multiple different forums etc all with different conflicking information which has made me nervious with what do i listen to this or that if you get what i mean. Now ive started to make myself familiar with my PClink software etc the past few weeks and im eager to learn how to do minor setups or tweaks etc so im not relieing on my tuner so much and obviously saving myself abit hurt in the back pocket. 
      Now back to the question at hand.... Im wondering if theres and one who could please share there knowledge and wisdom with setting all my values, timing, fuel etc when i have launch control armed and engaged, or even a launch tune file they can possibly send me to load onto my tune. Ive figured out the setup of my digital inputs turning launch control on etc and its obvisously on its pre set factory settings. It engages but doesnt sound the greatest or as angry as it should i feel. Hence reaching out to you good buggers. 
       
      Cheers in advance for any info and help yous maybe able to give me.
       
      Cheers Shaun
      · 0 replies
    • Joker  »  gotasuby

      updated your DP's too : hope that's ok!
      · 0 replies
    • Joker  »  SAS

      Updated your DP's to reflect your business page  
      · 0 replies
    • Joker  »  Nachoooo

      Updated your Avatar : couldnt help myself  cheers!
      · 0 replies
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    40.9k
    Total Topics
    573.5k
    Total Posts


×
×
  • Create New...