3.4L drysump build | Page 2 | FerrariChat

3.4L drysump build

Discussion in '308/328' started by Newman, Apr 16, 2018.

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  1. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    91 ethanol-free here and dynamic compression ratio (not static) is what matters!
     
    Newman, May 12, 2018
    #26
  2. hyenahf

    hyenahf F1 Rookie

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    u must be running hotter cams... yes! :)
     
    hyenahf, May 14, 2018
    #27
  3. BigTex

    BigTex Seven Time F1 World Champ Owner Rossa Subscribed

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    Nice work,,thanks for sharing the project.

    Pistons look yummy!!
     
    BigTex, May 14, 2018
    #28
  4. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    A CIS engine would not approve of these cams im running :)
     
    Newman, May 14, 2018
    #29
  5. hyenahf

    hyenahf F1 Rookie

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    even better yet... :)
     
    hyenahf, May 15, 2018
    #30
  6. 350HPMondial

    350HPMondial F1 Veteran Silver Subscribed

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    Oh,,,, I get it.
    im running CIS cams.

    I am working on a F.A.S.T. corp.
    port injection mod.

    I guess Ill need new cams for this fun mod.
    Thanks for this Blog. Learning a lot.

    Edwardo
     
    350HPMondial, May 17, 2018
    #31
  7. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Newman, May 29, 2018
    #32
    Dr Tommy Cosgrove, hyenahf and guygowrie like this.
  8. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Newman, May 30, 2018
    #33
    dinogt4guy, Albert-LP, Dr Tommy Cosgrove and 1 other person like this.
  9. sltillim

    sltillim Formula 3 Silver Subscribed

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    sltillim, May 30, 2018
    #34
  10. Hannibal308

    Hannibal308 F1 Veteran

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    Any HP ballpark estimate? I have a steel dry sump car in restoration for the past two years...motor hasn’t been touched!
     
    Hannibal308, May 30, 2018
    #35
  11. George Vosburgh

    George Vosburgh F1 Rookie Silver Subscribed

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    It's great Paul!
    What's the duration on the cams?
     
    George Vosburgh, May 31, 2018
    #36
  12. hyenahf

    hyenahf F1 Rookie

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    such fantastic build and attention to detail...

    how does one check the headgasket seal on these pressurize the chamber through the spark plug hole? how much psi do you run through it...arent the pressures up to around 1200-1500 psi during a burn on a running motor?
     
    hyenahf, Jun 1, 2018
    #37
    Newman likes this.
  13. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    The 2 valve wet sump ones make 335HP. 4 valve EFI around 375HP. I personally don't believe the 255HP claim of the dry sump engine vs 235HP for the wet sump. Running an extra pump creates parasitic losses and the windage tray in the wet sump cars would be pretty effective so Ill call it a wash. I like to say you get about a 100HP bump on a carb'd car.
     
    Newman, Jun 1, 2018
    #38
  14. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    You don't check cylinder pressure other than if I did a leak down test which would only be 100PSI. I run 16LBS on the cooling system and watch for it to drop over time and visually watch that the liner o-rings are sealing so its done prior to mounting it on the box.
     
    Newman, Jun 1, 2018
    #39
    hyenahf likes this.
  15. Newman

    Newman F1 World Champ Consultant Owner Professional Ferrari Technician

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    Nope can't tell you that :)
     
    Newman, Jun 1, 2018
    #40
  16. Hannibal308

    Hannibal308 F1 Veteran

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    Thanks. I always wondered about how adding a sump pump increased HP and assumed any difference between the dry and wet outputs was secondary to cam profile and carb set up differences. Appreciate your response. Keep up the great work!
     
    Hannibal308, Jun 1, 2018
    #41
  17. George Vosburgh

    George Vosburgh F1 Rookie Silver Subscribed

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    HA!
     
    George Vosburgh, Jun 1, 2018
    #42
  18. 4right

    4right F1 Rookie Rossa Subscribed

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    Another satisfied customer.
     
    4right, Jun 4, 2018
    #43
    Newman likes this.
  19. stacy

    stacy Karting

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    stacy, Jun 28, 2018
    #44
    Albert-LP likes this.
  20. Hannibal308

    Hannibal308 F1 Veteran

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    Sweet!
     
    Hannibal308, Jun 28, 2018
    #45
  21. Nino1964

    Nino1964 Formula Junior Silver Subscribed

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    Nice work.
     
    Nino1964, Jul 5, 2018
    #46
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