Skip to content
View in the app

A better way to browse. Learn more.

Ultimate Subaru Message Board

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

No boost?!?!?!

Featured Replies

well i fixed a bunch of issues since my last post but anyways here are the engine specs to start. EA82T, Spyder intake, 87.5 xt wiring harness, K26 turbo charger, custom uppipe, external wastegate, and an intercooler.

 

now for my problem my car wont seem to boost i can get to 2psi tops in first and second gear WOT. in second at WOT it seems to stumble just a little bit. i have checked for exhausts leaks (stethascope style) and came up with nothing. when sitting still and revving the turbo sounds like it wants to spool fine (not siezed) i have checked the wastegate and it seems fine i even unplugged it to see if it was opening to soon and it still only boosted to 2psi

 

vac at idle(1000rpm) - 16lb/hg

vac off throttle - 22lb/hg

fuel pressure at idle - 30psi

fuel pressure WOT - 36psi

 

i am going crazy trying to figure this one out!!, if you have any ideas i'll take them!!!!! thank you!

blame the gauge!

 

isn't it supposed to be inches of mercury :cool:

 

stock turbo system with wastegate line removed will easily do 25+ psi on regular gas :grin:

  • Author

i wish it was just the guage but acceleration screams no boost, lol. its like a damn snail

are you 100% sure the turbo spins freely? have you tried pressurizing the intake tract to see if it leaks or not?

Maybe whoever sold you the engine overheated it and didn't tell you. That happens sometimes.

  • Author

the turbo spins quite nicely (no play whatsoever) i havent pressurized the intake but i have checked for leaks with carb cleaner and didnt come across anything.

Please sign in to comment

You will be able to leave a comment after signing in

Sign In Now

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.