Boost gauge

Discussion in 'Modifications & DIY how-to' started by wrxbacano, Mar 25, 2008.

  1. wrxbacano

    wrxbacano Member

    ok just installed a boost gauge and its reading 10lbs most of the time but it will get up to maybe 12lbs, the only mods I have on the car is a full 3" exhaust and intake, is this where the boost should be or could I have istalled the gauge incorrectly? and could I push a lil more boost? thanks for any input.
     
  2. Davidwrx

    Davidwrx Member

    I think stock boost is about 13 psi. As far as if you could increase it, tuning / EM could safely do it some. You said you had exhaust, but did not mention any EM - cobb or other. The Cobb stage 2 MAP goes to 15 psi or so.

    Keep in mind that the boost is dependent on RPM, throttle position, and also gear (I think you get highest in 3rd or 4th).
     
  3. FRCFED4

    FRCFED4 Member

    im cobb stage 2 and i see about 17 psi in 2nd and 3rd. i think 10 would be about right if u dont have EM
     
  4. wrxin8or

    wrxin8or Mullitt Staff Member

    reset your ecu, and see if that fixes it.

    IIRC, peak boost in first and second is 10lbs, then it should be 14ish in 3rd-5th
     
  5. wrxbacano

    wrxbacano Member

    How can I reset the ecu?
     
  6. Berzerklo

    Berzerklo Active Member

    Unplug one of the leads on your battery for 5 minutes. Viola!
     
  7. STiBottom

    STiBottom Member

    No where near that long, unplug the battery, open your door, see dome light go off, presto it's reset.
     
  8. dontcallitarex

    dontcallitarex Active Member

    Those boost levels sound about right. My car makes about the same. I can't tell exactly since my boost gauge is an OEM STI one and it reads in Bar. Stock max boost is quoted as "11.9." I think with a catback you'll make a little bit more. I know I spool faster and push a bit more boost with my 3" CBE.
     
  9. ScoobyMike

    ScoobyMike OG Mod

    reset your ecu, and you should be fine.... full TBE and a intake should maybe raise your boost level maybe 1psi in 3rd-5th you should be hitting 13-high 14ish....
     
  10. FTZ

    FTZ ^.^

    The Vishnu reset used to be, unplug - from battery, step on brake for about 5 seconds, done.
     
  11. wrxbacano

    wrxbacano Member

    ok thanks for the input. But as far as the boost, can I raise it any, just wondering before I try anything stupid, cause I do have a MBC that Id luv to try out.
     
  12. AK_Raptor

    AK_Raptor Member

    Mbc=ftl
     
  13. wrxbacano

    wrxbacano Member

    ok ok im lost, ive been out of it for a while, MBC=manual boost control, right? whats ftl haha I feel dumn as F......! lol
     
  14. AK_Raptor

    AK_Raptor Member

    Manual Boost controller For The Lose=FTL
    They're just not a good idea
     
  15. wrxbacano

    wrxbacano Member

  16. dontcallitarex

    dontcallitarex Active Member

    Yeah, upping the boost sounds like a great idea until something begins to smoke and subsequently explodes. You can't just increase boost, you have to change lots of other factors in the way the motor applies the boost. I'm sure Will or someone could tell you exactly why.

    But, in short, a MBC is like a Vorpal blade for your EJ.:thumbsdow
     
  17. wrxbacano

    wrxbacano Member

    so I guess next step would be EM, or what would you guys recomend?
     
  18. AK_Raptor

    AK_Raptor Member

    Cobb AP
     

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