daydreaming

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    Author Topic: daydreaming  (Read 822 times)

    Offline imean340

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    daydreaming
    « on: June 28, 2008 - 11:50:33 AM »
    Anyone ever see/use the mopar R3 block? I saw an article on mopar muscle (if I remember correctly) where they used an R3 block and ported w-9 heads to make something insane like 600hp at 7500rpm on 91 octane! Im just daydreaming thinking about motors I could build if I won the lotto...you see so many LA strokers and people doing bigblock swaps but I thought it would be neat to make a high winding little 340 that puts out 600hp on 91 octane.  :eek2: The ford guys wouldn't know what hit em! :burnout:
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    Kris
    '70 340 challenger- 69 crank and block,  bored .030 over, speed pro forged pistons, eagle forged I beam rods, 2.02/1.60 "J" heads, 3 angle valve job, 230*/230* .480/.480 110LSA cam, Eddy performer manifold, hooker supercomp 1 3/4's headers, Holley 670 street avenger, TACTRANS 727, Protorque converter, 4.56 gears, L60 M/T "I" treads, SS springs, 70/30+50/50 drag shocks---spray coming soon---


    Offline Chryco Psycho

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    • 70 Challenger R/T SE 70 tube Chassis Cuda now sold
    Re: daydreaming
    « Reply #1 on: June 28, 2008 - 04:04:40 PM »
    Mopars race parts definatly work , the R3 / W8or 9 heads make power
    I saw an Article a few years back where Ritter & Weber did a small block W9 engine in a prostock chassis , there were 250-300lbs lighter than a legal prostock & were running .3 seconds slower then the 500" prostocks
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    Challenger - You`ll wish You Hadn`t

    nivvy

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    Re: daydreaming
    « Reply #2 on: June 28, 2008 - 04:26:08 PM »
    fully max effort ported w9's will flow 380 cfm @.700 lift /// that makes way more than 600hp about 800HP        :scared:

    LIFT-----AS-CAST--------PORTED
    ------------IN/EX-----------IN/EX
    .100”------72.5/N/A--------74.2/N/A
    .200”---129.4/103.5-----141.5/102.8
    .300”---189.8/146.6-----200.1/158.7
    .400”---239.8/172.5-----245.0/203.6
    .450”---265.6/176.0-----276.0/215.6
    .500”---288.1/182.8-----303.6/226.0
    .550”—293.2/182.8-----332.2/233.6
    .600”---295.0/184.6-----349.8/241.5
    .650”---295.0/184.6-----370.2/247.7
    .700”---295.0/184.6-----379.2/251.1
    .750”----N/A/N/A--------387.5/258.1
    « Last Edit: June 28, 2008 - 04:44:06 PM by StRoKer »
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    Offline imean340

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    • Posts: 66
    Re: daydreaming
    « Reply #3 on: June 28, 2008 - 07:37:22 PM »
    380 cfm's holy crap!  :burnout: :burnout: No doubt that a r3/w9 motor would be  :money: but at least it'll help a mopar hang with the chevy lsx guys.  :ylsuper:

    I guess the only thing a 340cid r3/w9 combo would be lacking is the torque to push a heavy street car (e body) without some really steep gears compared to a stroker or a bigblock but man...screaming at 8000rpm's has got to be a blast!

    I found the article
    http://www.moparmusclemagazine.com/techarticles/155_0310_340_engine_600_hp/index.html

    the cam they used didn't sound too bad for  street use. 630 lift 260 duration with 108 LSA.

    "All told, the engine has a powerband of 3,600 to 8,500 rpm and idles at 850 rpm"
    « Last Edit: June 29, 2008 - 02:31:57 AM by imean340 »
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    Kris
    '70 340 challenger- 69 crank and block,  bored .030 over, speed pro forged pistons, eagle forged I beam rods, 2.02/1.60 "J" heads, 3 angle valve job, 230*/230* .480/.480 110LSA cam, Eddy performer manifold, hooker supercomp 1 3/4's headers, Holley 670 street avenger, TACTRANS 727, Protorque converter, 4.56 gears, L60 M/T "I" treads, SS springs, 70/30+50/50 drag shocks---spray coming soon---
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