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my FC3S RX7 build

Discussion in 'Other Vehicle Discussions' started by hosmer, Apr 21, 2010.

  1. hosmer

    hosmer I made the millionth post VIP

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    I bought this car about 4 months ago and have been putting it together, finishing up the engine and moving onto suspension, exterior, ect in the near future

    1991 Mazda RX7 Turbo II (original tII, not a conversion)
    86k on this chassis

    Engine:
    S4 13b block
    S5 manifolds/accessories/sensors
    Streetport
    3mm Apex seals
    Racing Beat top mount manifold
    Greddy compression tube
    Precision SC61 ball bearing turbo
    Tial 44mm ext wastegate
    Tial BOV
    Godspeed front mount w/custom piping
    RC Engineering 1200cc primary and secondary injectors

    Management/Electronics:
    FD3S Apexi Power FC w/hand commander
    Banzai patch harness for the FC3S
    GM 3 bar MAP
    Simplified engine harness (11 plugs total in the engine bay including the 4 for the injectors)
    PLX SM-AFR wideband
    Blitz boost gauge
    Autometer oil pressure gauge

    [​IMG]

    [​IMG]

    Installing the Power FC and injectors
    [​IMG]

    Put back together
    [​IMG]

    [​IMG]


    The car has an appointment at Dent Sport next Friday (4/30).

    When I get it back, next purchase is tires for the wheels I picked up for it.
    17x8, 17x9 Volk GTP's..offset should be decent for a flush fit

    [​IMG]
     
  2. 94H_Ex

    94H_Ex Under employed

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    This is going to be a build thread worth watching.
     
  3. hosmer

    hosmer I made the millionth post VIP

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    if it doesn't put down 400 next week I'm burning it to the ground
     
  4. Korax

    Korax New Member

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    No way dude, i'll come pick it up. We could burn my car instead?
     
  5. TurboMirage

    TurboMirage YEEAAAHHH VIP

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    tell matty i said hi :)
     
  6. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    sweet toy :thumbsup:


    what happened to the ms3?
     
  7. Briansol

    Briansol Admins Admin VIP

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    nice. should make some good numbers.
     
  8. Matts96HB

    Matts96HB . Moderator VIP

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    dont burn it :(

    nice looking project! dont know much about rotaries, except that they are interesting :p
     
  9. hosmer

    hosmer I made the millionth post VIP

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    flood waters took it...totalled
     
  10. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    shitty... well good luck with the new build
     
  11. GlassHeadlights

    GlassHeadlights West West Yall

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    I like thoes, nice build.

    How do the N/A ones fair up? I have a kid at school talking trash to me.... :ph34r:
     
  12. TurboMirage

    TurboMirage YEEAAAHHH VIP

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  13. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  14. GlassHeadlights

    GlassHeadlights West West Yall

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    Like slower than a D16Z6 CRX? :D
     
  15. hosmer

    hosmer I made the millionth post VIP

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    So it went in and all we could do is load a (custom made by Chris@Banzai in IN) base map to get it to start and idle...cuz it was only running on 1 rotor :mad:


    Well I traced that out to a faulty injector plug. The wire had broken inside the insulation about 2 inches from the plug...how the fuck that happened is beyond me but whatever, it was only 3 hours of my life with a stupid multimeter and testing injectors/rails/ect OFF THE MOTOR (the injectors are a bitch to get at on the motors, they're under the intake)

    I'm still getting this weird issue where the car breaks up sometimes at anything over 25% throttle, I THINK its the TPS but who the hell knows. I rang out both side (has 2 sensors, a wide range and a narrow) and 1 side came back .3 ohms over spec (5.4 instead of a 5.1 max)...so maybe, we'll see when I find another one to swap in there

    When it does run correctly its scary fast...so heres this for now:

    YouTube - Modified 1991 Mazda RX7 Turbo II SC61 BB idle





    -It shuts off after I rev it the 2nd time because I need to adjust a bleeder...I took the 2 stage fuel pump system out (resistor that cuts voltage to the pump at idle/cruising) and wired in a relay to get 12 volts all the time to the pump...the 1200's kind of need it
     
  16. phunky.buddha

    phunky.buddha Admin with a big stick Admin VIP

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  17. GSRCRXsi

    GSRCRXsi Super Moderator Moderator VIP

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    Damn you have an asston of room in that engine bay
     
  18. hosmer

    hosmer I made the millionth post VIP

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    I know...its so nice to be able to see the bolts I'm trying to take out for a change
     
    1 person likes this.
  19. 94civicturbo

    94civicturbo New Member

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    i like this car man :thumbsup: +rep for a nice build
     
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