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Cam selection

Discussion in 'Turbo Tech Questions' started by Remco R, Jul 24, 2023.

  1. Remco R

    Joined:
    Jul 15, 2023
    I don't know it any more , too many camshafts to choose. certainly don't want anything that works in the high rpm range, 6K is about the maximum.
    Car Chevrolet C 30 dually a 7000 pound truck. Engine 454 twin GT 45 turbos feeding a 12/71 supercharger. propane fuel, megasquirt pro ECU for ignition and fuel, Supercharger about 8 psi, the turbos should do the rest, in the high 20s should be able to run on propane. But which camshaft or in which direction should I look.
    thanks remco
     
    Remco R, Jul 24, 2023
    #1

  2. sam51

    Joined:
    Apr 4, 2018
    Here's the specs I'm using in my 5.9 magnum, which was a truck motor.
    Comp Cams
    Adv. dur 264/274
    lift .512/.512 @.050 210/220
    lobe sep 114
    operating range 900-5200
    This is a very mild build for street driving, my redline is 5500 so it all works well together. I have a 78/75 single turbo currently making 5 psi but I'll doubling that in the near future, I just needed to work out any bugs with low boost so I don't kill anything.
     
    sam51, Jul 25, 2023
    #2
    Remco R likes this.

  3. tbird

    Joined:
    Sep 1, 2004
    whats the application/use?
     
    tbird, Jul 25, 2023
    #3
    Remco R likes this.

  4. Remco R

    Joined:
    Jul 15, 2023
    As I wrote it,s for a 7000 pound dually truck .
    Not one stock part left in the engine. all forged internals. aloy heads , etc Detroit Locker
    Higher boost levels.
    Application FUN Tire fryer. Faster 0-60 that those suits in their audi Q8s overhere in the Netherlands .
    Might take it to the track if it ends up fast enough .
     
    Remco R, Jul 25, 2023
    #4

  5. B E N

    Joined:
    Nov 22, 2016
    I think with 454" you will want something in the 268-272° advertised duration range. Should peak close to 5700 and you will shift by 6k. The blower and displacement will cover any issues low in the RPM range and it will freight train at the top.
     
    B E N, Jul 26, 2023
    #5
    Remco R likes this.
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