Upgrading from GTX2867, Gtx 3071(gen2) or gtx3076(gen2)

Discussion in 'Forced Induction' started by tharshan, Apr 24, 2018.


  1. tharshan

    tharshan Member

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    Hi guys!

    Well my b18c-R engine blew at 1.7 bar on stock block with thick headgasket, arp headstuds and supertech dual valvespring + Ti Retainers. Well, it actually did run great untill I put on some "oem denso coils", and it blew as soon as I got into full boost.

    Well, enough of that story. I just got hold on benson sleeved, laskey build b18c engine 84mm x 89mm, so now I'm considering if I also should upgrade the turbo aswell. I mean the rest of my system should support around 500-600hp:

    ARP Headstuds
    Supertech valve spring og ti retainers
    Valvecover with 2 -10an
    Hondata intake gasket
    Thermal 3" exhaust
    ACT 6-puck disc
    ACT xtreme pressure plate
    Exedy 9lbs flywheel
    Hasport 62A engine mounts
    OEM torque mounts
    Ingals engine damper
    AEM water methanole kit
    Hondata Traction control
    Hondata CPR
    ID1000cc injectors
    Walbro 400lph fuel pump
    AEM fuel rail black
    AEM fuel pressure regulator

    Turbo:
    Full-race ramhorn AC compitabel manifold
    Garrett GTX2867r .82 a/r
    Full-race 3" DP
    Intercooler from Full-race painted black
    Tial 44mm wastegate
    Tial blow of valve
    IC piping from full-race + custom pipe, 2.5"

    cooling:

    Mishimoto x-ine full-size radiator -16an fittings and hose
    Setrab 60 row oilcooler with -10an hose and fittings
    Mishimoto sandwich w/thermostat
    Spoon thermostat
    Spoon fan switch
    1.3 bar radiatorcap

    I really like the responsivness from the GTX2867r, but with the new engine, I could easily run a lot more power. But the car is used as a daily driver in the summer + circuit racing.

    The turbos I consider is the GTX3071r or GTX3076r, GEN 2 of course. I would love the 76 because it will support more power, but how much slower spool and shorter wideband would it be?

    Anyone running these turbos?
     

  2. jesse888

    jesse888 Ek9+Turbo+Nurburgring= Heaven Staff Member Donator

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    ive had 2 of the 3 turbos you mention.
    i couldnt get 1.7bar out of my gtx2867 gen1 though, too much intake heat and it was clearly fading away at the top of the rev range.

    i jumped from that to a gtx3071r gen1, also stepped up from 0.63 to 0.82 AR exhaust housing.
    mine gets the full 1.7bar by 4500RPM on an 1800cc bottom end, stock b16b head.
     
  3. tharshan

    tharshan Member

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    Cool. I have the .82 a/r on my GTX2867 know, maybe it was therefore I managed to get 1.7bar. But since you mention it, I actually recall that if it got hot, I couldn't get more then 1.4-1.5 bar on it.

    So In theory maybe I should get full boost around 4500rpm with a gtx3076 gen 2 with the 2l engine?
     
  4. jesse888

    jesse888 Ek9+Turbo+Nurburgring= Heaven Staff Member Donator

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    i wouldnt call that an unreasonable target on 2000cc
     
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  5. tharshan

    tharshan Member

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    Thanks man. I'll try to keep my thread updated. Unfortunatly photobucket wants money to show my old pictures :p
     
  6. jesse888

    jesse888 Ek9+Turbo+Nurburgring= Heaven Staff Member Donator

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    yeah they ruined mine aswell
     
  7. harvey j

    harvey j PSN: DIRTY-JDM-B20

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    Just read this, looks interesting, how's it coming along?
     
  8. tharshan

    tharshan Member

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    Hi,

    I ordered the gtx3076 gen2 with .82a/r. I also decided to rebuild my head, and it should be ported and finished by Monday.

    Spec:
    Integra b18c6 head
    Oem itr cam and camdrive
    Ferrera comp Plus valve std
    Ferrera 85lbs valve springs and ti retainers
    Ferrera valve keepers
    Ferrera valve seals
    Ferrera valve guides

    I’m hoping to drop the new engine by the next weekend with the new turbo. I’ll keep you updated.
     
  9. tharshan

    tharshan Member

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    The car is running. Going the meassure the power at the dyno on Thursday.
     
  10. tharshan

    tharshan Member

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    Unfortunately the dyno day didn’t go as I planed. My water/meth started to throw out false errors, a lot of boost leak and the intake coupling impoled Over 1.7 bar.

    Results with boost leak and imploding intake after 7500 rpm:
    503hp@7400
    548nm@5800(it starts to leak badly from here)

    Video from a street pull. Boost by gear.


    I managed to get it leak free and fixed the intake. I almost ran 2.2 bar on 9000rpm, and the car was insane, but sadly the oil pump failed.
     

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