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Duntov 30-30

Discussion in 'The Hokey Ass Message Board' started by 30Abone, Dec 24, 2008.

  1. 30Abone
    Joined: Jun 20, 2005
    Posts: 220

    30Abone
    Member

    who has used it or still useing it? and how do they run on the street.
    I am thinking of putting one in my 327 for my a sedan.
     
  2. 327-365hp
    Joined: Feb 5, 2006
    Posts: 5,435

    327-365hp
    Member
    from Mass

    I'm pretty sure that's what's in my car. Motor's been in it since 1965. It's runs good and sounds even better! It's sounds like a drill, whizz whizz. I'm running a 4 speed, and no vacum advance, it might be tough to run with an automatic. A word of warning though, it's hard not to get on it at every chance I get!! :D
     
  3. carkiller
    Joined: Jun 12, 2002
    Posts: 849

    carkiller
    Member

    I ran one 35 years ago in my 55 w/283 punched to 292 w/stick turned 8-9 rpm all the time. Nice responce fair idle. Dont think it would have worked w/auto w/stock converter.
     
  4. gerrald meacham
    Joined: Oct 23, 2006
    Posts: 134

    gerrald meacham
    Member

    valves are real loose on the 30 30 that means 30 thousands , thats loose needs lot of attention , i used to run one in 56 chevy , it would run like u terpintined a cat
     
  5. easyrider47
    Joined: May 7, 2004
    Posts: 670

    easyrider47
    Member

    I've ran several of them over the years. They do have an impressive idle, but I found them pretty soft below 3500 rpm. It will wind out big time, but you have to have your rpms up to get the real performance. I thought the earlier F.I. cam for the 283 was a better street cam, the 8 and 18 Duntov.
     
  6. Babyearl
    Joined: May 23, 2008
    Posts: 610

    Babyearl
    Member

    098 Duntov :D
     
  7. 30Abone
    Joined: Jun 20, 2005
    Posts: 220

    30Abone
    Member

    I forgot to say that it will be a dual purpose car.
    drag and street. if that makes a differince.
     
  8. moon man
    Joined: Nov 1, 2006
    Posts: 871

    moon man
    BANNED

  9. gasserjohn
    Joined: Nov 9, 2008
    Posts: 1,218

    gasserjohn
    Member

    i did monthy tuneups on a corvette for one of the younger engineers at the a/c sheet metal shop next door to where i was a mechanix ...you must make sure you have it on the flat of the lobe to set it then you will get a true 30/30 setting not too noisy then &setting lasts longer
     
  10. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 32,795

    Jalopy Joker
    Member

    30/30 with solid lifters, good breathing and exhaust via a stick trans/ good rear gears and you will have fun on street/ some strip. Check cam builder sites for specific info. More than one supplier now.
    I had a all stock '54 Ford 1/2 ton PU with a true Vette small block with the 30/30 solid lifter set up. I would pull up to a stop sign and would see people looking around for the Corvette that the sounds were coming from. It was a lot of fun.
     
  11. propwash
    Joined: Jul 25, 2005
    Posts: 3,857

    propwash
    Member
    from Las Vegas

    Have run several "30-30" cams, and have had great luck running them at .028/.028 - the lumpy idle can't be beat and while they don't have the pull at low rpms, when they come on...it's just exciting. My enamoration with adjusting valves interminably has subsided over the years, and pretty much I either use the LT-1 (370hp) cam or a good quality aftermarket with similar specs for a hydraulic dual-purpose cam that still elicits a nice rumble at idle.

    dj
     
  12. woody2
    Joined: Aug 19, 2007
    Posts: 162

    woody2
    Member

    Great cam for street and strip. I ran one years ago in a 327 with fuelly heads and a tricked powerglide.It would run hard all thr way to 7500 rpm with a stock points dizzy.And you will never get sick of that idle.If you want to sell it I want first dibs.
     
  13. Back in the late fifties and sixties it was about the best cam you could buy for a small block chevy , we always ran them in 283s and 327s , ,,,,,,,
     
  14. Shaggy
    Joined: Mar 6, 2003
    Posts: 5,207

    Shaggy
    Member
    from Sultan, WA

    Crane cams makes one, I belive it's in Something like "Factory Muscle" cams or something you can get 'em through summit, they call them a stock 64 vette solid grind or something like that, it's the one with .485/.485 lift

    Was gunna run one on my 301 in my 64 'camino but i think i'm gunna try the "Factory offroad 1" also known as "041" z-28 grind instead
     
  15. 30Abone
    Joined: Jun 20, 2005
    Posts: 220

    30Abone
    Member

    i found one in the competition products catalog made by elgin for 169.95 with howards edm lifters. for the rest of the motor i am thinking fo going with some aftermarket headsbecause it will be more cost effective than having my 461s rebuild. and i have a offy 2x4 intake with 2 afbs. i am hoping for around 425 hp.
     
  16. 30Abone
    Joined: Jun 20, 2005
    Posts: 220

    30Abone
    Member

    I am looking to run pump gas so i am thinking 10-10.5:1 comp.
     
  17. Shaggy
    Joined: Mar 6, 2003
    Posts: 5,207

    Shaggy
    Member
    from Sultan, WA

    Aftermarkets just dont look as cool as camel humps, i wish i could run em' on my 301 but i'd be over 11 to 1 with em
     
  18. Dick Steinkamp
    Joined: Mar 15, 2006
    Posts: 65

    Dick Steinkamp
    Member


    I don't believe you can run a 10.5 motor and probably not a 10.0 motor on pump gas without severely knocking back the timing...which would negate the gains of the high compression.

    Coldwar is correct. A cam made for 11-12/1 CR is pretty much dead at the CR's we can run on today's pump gas. You really only have "bragging rights" with that 30/30.

    Have one of the name cam grinders grind you a cam with loose valve clearances and a lumpy idle so that you make the right noises, but so that it will make some HP in a 9/1 motor.
     
  19. dave lewis
    Joined: Dec 12, 2006
    Posts: 1,381

    dave lewis
    Member
    from Nampa ID

    We used that cam forever ! on the old dirttrack motors..
    Cam tech sure has come a long way since then.
    That said, here is the trick to wake up the bottom end for street use..
    #1, advance that thing 4 deg.
    #2, close up the intake lash 6 thou. and close up the exhaust lash 2 thou.
    It will be slightly less noisy at idle and way more responsive..
    BTW , if you are running a 350 or bigger this cam set up in this manner will even work for power brakes ! ( the longer stroke is less sensitve to a big cam ) This grind in a 283/301 sounds way wicked, and calmer in a 327... and almost mild in a 350,,,In a 400 you can barley hear it..
    This is a perfect grind if you want that vintage sound.
    Dave
     
  20. 30Abone
    Joined: Jun 20, 2005
    Posts: 220

    30Abone
    Member

    i know they don't look as cool as the camel humps but it is going to take about 800-1000 dollars to rebuild them and do the port work. i can get s pair of iron eagles ready to run that will out flow the ported 461s outof the box for under 1000. or for 1200 i can get a set of canfield aluminums
    with 200cc intake runners and 65cc cnc'd chambers.
     
  21. 32Rules
    Joined: Mar 17, 2007
    Posts: 202

    32Rules
    Member

    I run one in my 61 corvette with roller tip rockers. Rockers take away a lot of the clatter but you still have to work in traffic to keep the revs up. Constantly going up and down the gears in my close ratio 4 speed to keep revs above 3,000. Lots of slipping the clutch to get rolling at what the local police would consider a normal take off.
    But it sure got a nice idle and is very fun on a summer day with the top down.
     
  22. 32 Barn Car
    Joined: Jul 2, 2008
    Posts: 663

    32 Barn Car
    Member
    from Oregon

     
  23. fab32
    Joined: May 14, 2002
    Posts: 13,985

    fab32
    Member Emeritus

    Like almost everyone has said it's hard to beat the idle of a .030/.030 but put two equally (and I mean equally) prepared cars side by side, one with a '030/.030 and one with a 350 hp 327 hydraulic and the one with the 350 hp hydraulic will be watching the other one in his rearview mirror before your half way through second gear. It just has more usable torque through the usable RPM range than the .030/.030. Lest we all forget its torque not HP that moves a car. All about whether you want to talk the talk or walk the walk.
    With that said there are so many grinds available today that outperform both of these cams it's almost a joke to consider using either unless your more anchored in nostalgia than running the best you can. A call to your favorite cam grinder (I prefer Comp Cams) will net you one that will fit your application better than any of the old "one size fits all" grinds of yesteryear.

    Frank
     
  24. Al Napier
    Joined: Feb 6, 2007
    Posts: 400

    Al Napier
    Member
    from Central CT

    Modern cam grinds are certainly more efficient, but, I still love my old 30-30 cammed engines.

    Just make sure you run some gear in your rear, limit your centrifugal advance and then add some back in initial and you'll be lovin' it too :)

    Al in CT
     
  25. 39cent
    Joined: Apr 4, 2006
    Posts: 1,569

    39cent
    Member
    from socal

    I bought a 30/30 cam for my bored out 265 with dual quads, and 10 1/2 pistons ported heads, and the sound and the performance was awesome for the times.We used to tighten up the valves at the drags, and had to check them a lot. Things are different today and I will go for the performance.
     
  26. skunx1964
    Joined: Aug 21, 2008
    Posts: 1,455

    skunx1964
    Member

    now i know nothing about the cam yer speakin of, but my 355 in my 58 has 10.5 to 1 comp and its fine on 93 octane, w booster. its basically a roundy round motor, about 415 hp.
     
  27. 39cent
    Joined: Apr 4, 2006
    Posts: 1,569

    39cent
    Member
    from socal

    Also the corvette cam didnt have vacumn advance
     
  28. Cut55
    Joined: Dec 1, 2007
    Posts: 1,980

    Cut55
    Member
    from WA

    The 327 in my '55 was built by a speed shop in SoCal in the '70s and it has a 30-30. Very nice chop, especially with the required compression. The car has the long "Hemi" style Thrush turbos with short turn-downs, also from the '70s, and it sounds great. Drives as good as any '55 with a nasty old 327/4-speed combo. One of my favorite aspects is sitting at a stop light and seeing people stare at the snarling beast as it rumpity-rumps and spews 108 fumes. Green light--see ya.
     
  29. Pete1
    Joined: Aug 23, 2004
    Posts: 2,261

    Pete1
    Member
    from Wa.

    I have one in my race car.
    Good cam...Turns 7800 twice a lap.
    One of my best selling cams.
     
  30. HotRodFreak
    Joined: Mar 25, 2005
    Posts: 1,935

    HotRodFreak
    Member

    My avatar coupe has a NOS 30-30 Duntov which sounds wicked at idle and performs awesome at 11.5 CR with stick tranny. Mechanical lifters like to be noisy.
     

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