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    Author Topic: 383/496 stroker dyno!  (Read 4435 times)

    Offline Tmb84

    • Jr. Member
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    • Posts: 56
    383/496 stroker dyno!
    « on: May 09, 2017 - 10:58:27 AM »
    First round, 577hp 909nm, after some tuning it delivered 616hp 976nm

    Im very happy with this
    Logged
    71 Barracuda Hemi -Sox&Martin
    70 Charger 383 -Top banana


    Offline 73_Cuda_4_Me

    • Jr. Member
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    • Posts: 423
    Re: 383/496 stroker dyno!
    « Reply #1 on: May 09, 2017 - 04:31:00 PM »
     :bananasmi

    Awesome results!

    Now I'm officially jealous... but still happy with my 340 cruiser... Have FUN!!!

     :burnout:
    Logged
    1973 Plymouth Cuda BS23H3B567783

    R11 V6X EN2
    M21 M25 M31 M88 N41 N42
    V1X U B41 C56 G37 J54
    JY9 A6X9 0 703 501616
    E55 D34 BS23 H3B 567783

    Offline cudabob496

    • Sr. Resident
    • ******
    • Posts: 8024
    Re: 383/496 stroker dyno!
    « Reply #2 on: May 09, 2017 - 04:47:45 PM »
    what are details of engine and components?
    Logged
    72 Cuda, owned 25 years. 496, with ported Stage VI heads, .625 in solid roller, 254/258 at .050, 3500 stall, 3.91 rear. 850 Holley DP, Reverse manual valve body.

    1999 Trans Am, LS1, heads, cam, headers, stall, etc! Love to surprise the rice rockets with this one. They seem so confident, then it's "what the heck just happened?"

    2011 Kawasaki Z1000

    Offline 73_Cuda_4_Me

    • Jr. Member
    • **
    • Posts: 423
    Re: 383/496 stroker dyno!
    « Reply #3 on: May 09, 2017 - 05:21:31 PM »
     :clueless:

    I am really curious how 'some tuning' nets 40 HP!!! What was involved with that, sheesh! I want that!
    Logged
    1973 Plymouth Cuda BS23H3B567783

    R11 V6X EN2
    M21 M25 M31 M88 N41 N42
    V1X U B41 C56 G37 J54
    JY9 A6X9 0 703 501616
    E55 D34 BS23 H3B 567783

    Offline 73cudabr

    • Jr. Member
    • **
    • Posts: 134
    Re: 383/496 stroker dyno!
    « Reply #4 on: May 09, 2017 - 10:31:37 PM »
    My first trip to the dyno I went from 250 Rear wheel to 270 after tuning and 400 dollars for the tech to change jet sizes and timing. I thought it was a good deal until the timing was so far off it wouldn't run haha. I'm sure results will vary with others.
    Logged

    Offline Tmb84

    • Jr. Member
    • **
    • Posts: 56
    Re: 383/496 stroker dyno!
    « Reply #5 on: May 10, 2017 - 02:38:19 AM »
    The carb is a holley dp 950, it had the same injectors front and back, the fuel was way to rich..
    He went down on front injectors and up on the rear ones. The timing was also a bit high.

    496 stroker kit from 440-source
    Upgraded rods
    Comp cam 286 roller
    Edelbrock alu heads
    Edelbrock performer rpm dual plane
    Holley 950
    MSD pro billett distributor and ignition box
    TTi 1,7/8 headers
    3" exhaust with open resonators
    Electric water pump

    2500 stall speed converter

    Rwhp did go from 443 to 474

    -dynapack dyno
    Logged
    71 Barracuda Hemi -Sox&Martin
    70 Charger 383 -Top banana

    Offline 73_Cuda_4_Me

    • Jr. Member
    • **
    • Posts: 423
    Re: 383/496 stroker dyno!
    « Reply #6 on: May 10, 2017 - 06:38:30 AM »
     :2thumbs:
    Logged
    1973 Plymouth Cuda BS23H3B567783

    R11 V6X EN2
    M21 M25 M31 M88 N41 N42
    V1X U B41 C56 G37 J54
    JY9 A6X9 0 703 501616
    E55 D34 BS23 H3B 567783

    Offline Tmb84

    • Jr. Member
    • **
    • Posts: 56
    Re: 383/496 stroker dyno!
    « Reply #7 on: May 10, 2017 - 10:28:10 AM »



    « Last Edit: May 10, 2017 - 10:29:56 AM by Tmb84 »
    Logged
    71 Barracuda Hemi -Sox&Martin
    70 Charger 383 -Top banana

    Offline 73cudabr

    • Jr. Member
    • **
    • Posts: 134
    Re: 383/496 stroker dyno!
    « Reply #8 on: May 10, 2017 - 02:34:00 PM »
    Great numbers 700+ tq before 4000 RPMs (assuming the google conversion is correct). Are those heads CNCed?
    Logged

    Offline Tmb84

    • Jr. Member
    • **
    • Posts: 56
    Re: 383/496 stroker dyno!
    « Reply #9 on: May 10, 2017 - 03:12:00 PM »
    no work on heads, not sure of the compression ratio, but it need minimum 98 octane RON gas, i think that is the same as 95 R+M gas
    Logged
    71 Barracuda Hemi -Sox&Martin
    70 Charger 383 -Top banana

    Offline todd383

    • Jr. Member
    • **
    • Posts: 300
    • I'm a llama!
    Re: 383/496 stroker dyno!
    « Reply #10 on: May 15, 2017 - 09:19:12 PM »
    Very nice! I also have a 496 383 kit ,  it makes 486 rwhp and 490 rwtq,  it's a blast!  I'm goin on 4 years now and about 20,000 of hard ass miles now, and raced it twice !
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    Offline CUDA8U

    • Jr. Member
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    • Posts: 166
    Re: 383/496 stroker dyno!
    « Reply #11 on: May 15, 2017 - 11:08:31 PM »
    are the heads eddy rpm's?
    Logged

    Offline todd383

    • Jr. Member
    • **
    • Posts: 300
    • I'm a llama!
    Re: 383/496 stroker dyno!
    « Reply #12 on: May 16, 2017 - 06:40:59 AM »
    Quote from: CUDA8U on May 15, 2017 - 11:08:31 PM
    are the heads eddy rpm's?
      no, mine are stage 1 ported, and flow around 300, 305 cfm at around 550ish lift,  there 440 sorce aluminum
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    Offline 734406pk

    • Andy
    • Sr. Member
    • ****
    • Posts: 1716
    Re: 383/496 stroker dyno!
    « Reply #13 on: May 16, 2017 - 08:57:23 PM »
    That's some very strong number! Congrats! :cheers:
    Logged
    1973 Challenger 440 6 pack auto 3.91 rear
    2012 Dodge Ram 3500 dually 6.7 Cummins Fleece EFI Live
    1973 Challenger 318 2bbl auto 2.73 rear 22.5 mpg RIP
    1970 Challenger TA 340 4bbl auto-Sold and sad
    1999 Dodge Ram 3500 dually 5.9 Cummins Fleece tuned VGT-sold
    1995 Kawasaki ZX1100E & still alive

    Offline Tmb84

    • Jr. Member
    • **
    • Posts: 56
    Re: 383/496 stroker dyno!
    « Reply #14 on: May 18, 2017 - 12:52:10 PM »
    I got 472 rwhp, 140hp lost in the 727!!
    Logged
    71 Barracuda Hemi -Sox&Martin
    70 Charger 383 -Top banana
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