519 update from your old pal Nate

Discussion in 'Big Block Cadillacs' started by Natonia1969, Nov 13, 2018.

  1. Natonia1969

    Natonia1969 Active Member

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    Upgraded just about everything in my engine to a roller set up, fully ported aluminum heads, port matched single plane intake, .650 lift cam, adjustable rockers, 650hp sniper efi, 383 ford 9" true trac gears with 3" magnaflo exhaust.
    Bit the bullet bc I've been so busy that I forked over the cash to have a local speed shop do the labor. Having some issues with leaks from the intake bc it doesn't fit exactly as it should. You'd think a $700 intake would fit like titts and not need much porting. How small the runner holes were compared to my heads was comical. Anway it leaks from somewhere on the rail but its going back to the shop to get it worked out on their dime. Also the efi is tapped out I need the dominator sniper next I guess from what I'm told. I couldn't really get on the throttle all the way bc I have hardly any brakes. I Installed a vacuum pump to find out my booster is bad. But..it finally gives me the butterflies in my stomach like when you're on a roller coaster drop. So its pretty damn fast now lol and can now live up to the nick name I gave it when I started the build of the Villain.
     
  2. Natonia1969

    Natonia1969 Active Member

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  3. Natonia1969

    Natonia1969 Active Member

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    Belt slipping at end of video
     
  4. Cad Man

    Cad Man Active Member

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    What are you gonna do about the 4150 Sniper pulling too much vacuum and not able to supply enough fuel for the hp..?

    How much vacuum did it pull at wot?

    Good news is your making alot of power must be over 650 even with the snipers shortcommings

    I found out too that the 4150 sniper is only rated at 800cfm..
     
    Last edited: Nov 13, 2018
  5. Natonia1969

    Natonia1969 Active Member

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    He said it pull a couple inches of vacuum at wot, but I have an intake leak from somewhere plus a bad brake booster. As for the sniper it looks like I will hold off for a little while and get the dominator sniper if Holley says it will run something with less than the advertised 800hp +
     
  6. Cad Man

    Cad Man Active Member

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    A few inches vacuum while vague still sounds like way more than you want at wot..

    That minimum hp is more hype..
    I think that's based on smaller cubes and forced induction.. since its
    1400 cfm... the tunning parameters for cams dont add up to the minimum 800hp deal either. In fact they tell you with larger cams it wont be fully able to self tune anyway. ..


    Courtney has ran it on less than 800

    For you it would make a good bit more power than what you have as yours is only 800 cfm.
     
    Last edited: Nov 13, 2018
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  7. nosgood

    nosgood Active Member

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    Nice man, your set up is where I want to go next with my engine. Let us know what Holley says about that Dominator Unit.
     
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  8. Cad Man

    Cad Man Active Member

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    They will tell you it's no good for your motor guaranteed..

    I have 1 sitting in the living room waiting to see if I need to send it back for the money if need be. It's kinda under rated for my end plan anyway
     
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  9. PJ McCoy

    PJ McCoy Well-Known Member

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    NATE!!!!!!!!!!!!!!!
    AWESOME!!!!!!!!
    that sounds soooooooo damnnnn good!!!!!!!!!!!!
    Thank You.
    PJ
     
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  10. Roy Heisenberg

    Roy Heisenberg The 472 Crank is stronger due to overlap

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    Nice video ! That sounds mean and nasty !!!!

    You DaMAN !
     
  11. Natonia1969

    Natonia1969 Active Member

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    Thanks man. Working on brake system next. I have plenty of go and no woh lol
     
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