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boost or bump compresion

Discussion in 'Engine Building' started by 97hatch, Apr 10, 2005.

boost or n/a B20 in a crx

  1. boost

    100.0%
  2. 0 vote(s)
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  1. 97hatch

    97hatch ?

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    ok i have a b20 in a crx with n2o now. Im towrn between runing a 50 shot and like 8psi or puting rods and pistons in going to about 11.0:1 CR with a say a 150 shot.


    please help me decide

    im runing 12.5s now with a 100shot tell my what you all think
     
  2. reckedracing

    reckedracing TTIWWOP VIP

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    boost it...
     
  3. Speedracer228

    Speedracer228 ......

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    N/A, slap a V-TEC head on that bad boy. But ive heard if you want to bump the compression in the b20, you should resleeve it.

    But if you plan on boosting it, im sure sooner or later you are going to get tired of how it is, and want to turn up the boost your going to have to resleeve it eventually...
     
  4. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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    Drag -> boost
    Road Course -> N/A
     
  5. pissedoffsol

    pissedoffsol RETIRED

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    150 shot -> boom on the stock b20 sleeves
     
  6. 97hatch

    97hatch ?

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    thats not what i want to hear B
     
  7. 97hatch

    97hatch ?

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    well boost is the answer im hoping to get to 11's.


    just purchased ys1 with a quaife
    SFP race manifold
    tial 42mm W/G


    soon to come
    precesion gt32E
    Intercooler
    FMU
    and a day of plumbwork
     
  8. reckedracing

    reckedracing TTIWWOP VIP

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    hmmm... you may want to look into something other than an FMU for managment...
     
  9. MikeBergy

    MikeBergy Blah blah blah....

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    Or you could do a mixture of both. That would be my choice. Here is my ideal setup.

    B16 - Sleeved and Bored slightly
    Forged CP pistons w/swain coating 10.5:1 CR
    Cunningham I beam rods
    -I am not familiar with the different series of turbos, but I'd run about 7-10 psi of boost, with optimization right around there. A t3 would probably be enough.
    RM head goodies
    TurboEdit Fuel management with larger injectors, probably 450's or 550's, anything more would probably be overkill.
    An walbro intank would probably be necessary.

    A lot of preliminary concepts would have to be looked into more in depth, but a good balance of both high compression and turbocharging would net you the most efficient performing engine. Of course, this requires a higher level of tuning to be reliable than either just NA or Turbo apps. Just make sure you have fun whatever you do.
     
  10. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  11. pissedoffsol

    pissedoffsol RETIRED

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    FMU :bash:

    please god no. you're better off running a 200 shot. lol
     
  12. 97hatch

    97hatch ?

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    realy no fmu as a get it done thing for now i have a set of accel 280s now so it has new injectors and a walbro

    what is so bad about a fmu the work for S/C aplications why not turbo and low boost
     
  13. reckedracing

    reckedracing TTIWWOP VIP

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    do they work... yes...

    are they the best choice? no definately not...

    you will be no where near your HP potential without proper tuning... and proper tuning would be larger injectors and fuel maps to give it enough fuel during boost conditions...

    FMU = running rich

    accel 280's?
    http://www.allmotorhonda.com/techpages/injector.htm
     
  14. 97hatch

    97hatch ?

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    well there 310s or 260s im not sure not 280s like i was told
     
  15. pissedoffsol

    pissedoffsol RETIRED

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    your setup has "oh shitttt" written all over it.

    id highly suggest you do some more reading about boost before you start buying stuff.
     
  16. FFCiv

    FFCiv Senior Member

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    read up on Uberdata if your OBD1 or Turbo edit if your OBD0
     
  17. 97hatch

    97hatch ?

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    thanks b what should i do then what is wrong im open just let me know
    what part says o shit
     
  18. projectxspeed

    projectxspeed Senior Member

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    B's point is that you have a pretty good setup planned, and then you are crapping all over it with your FMU. Uberdata is only like 200 and thats if you are really lazy and what it done for ya.
     
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