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Thread: 3D printing cylinder heads ???

  1. #41
    boostaholic
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    Re: 3D printing cylinder heads ???

    Unfortunately in my life there is no "the money"

    Quote Originally Posted by Dr. Johny Dodge View Post
    unless the low cost of the car enables you to spend "the money" elsewhere
    we can find good cars and parts cheap - not so if you needed a cuda , challenger or road runner with a worthwhile shell , just to start
    I know I can't find anything else <<that good for the same 25hun as <<

  2. #42
    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: 3D printing cylinder heads ???

    noted ..

    as for an idea what's involved both effort and cost wise .. this guy would have a valid opinion
    to bad for us he makes ford 2.3stuff

    https://www.youtube.com/watch?v=pv6h9auhMPQ

  3. #43
    Boost, it's what's for dinner... Turbo Mopar Staff Aries_Turbo's Avatar
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    Re: 3D printing cylinder heads ???

    Quote Originally Posted by cordes View Post
    For all that work, just run a Masi head and be done with it.
    what does a masi flow at 500 and 600 lift? it looks really good at 350 lift according garys info from back in the day.

    honda k series does 307/316 at 500/600 lift intake and 207/211 exhaust.

    masi exhaust looks pretty good compared for the exhaust side but im curious what the intake does.

    if you interpolate the chart i saw, the k20a2 does around 277 at .350 lift intake and 198 at .350 exhaust.

    stock k20a2.

    Intake

    Lift CFM
    .100 107.79
    .200 196.52
    .300 261.67
    .400 294.65
    .500 307.84
    .600 316.64



    Exhaust

    .100 46.07
    .200 122.55
    .300 193.59
    .400 203.86
    .500 207.41
    .600 211.82

    so the exhaust seems better on a masi head but the honda intake smokes it.

    hence the discussion about a custom head with honda style ports.



    Brian

    Quote Originally Posted by turbovanman
    This one is easy, I have myself to blame, I rush things, don't pay attention to gauges when I should, change to much stuff at once then expect miracles, the list is endless.

  4. #44
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: 3D printing cylinder heads ???

    Quote Originally Posted by Aries_Turbo View Post
    what does a masi flow at 500 and 600 lift? it looks really good at 350 lift according garys info from back in the day.

    honda k series does 307/316 at 500/600 lift intake and 207/211 exhaust.

    masi exhaust looks pretty good compared for the exhaust side but im curious what the intake does.

    if you interpolate the chart i saw, the k20a2 does around 277 at .350 lift intake and 198 at .350 exhaust.

    stock k20a2.

    Intake

    Lift CFM
    .100 107.79
    .200 196.52
    .300 261.67
    .400 294.65
    .500 307.84
    .600 316.64



    Exhaust

    .100 46.07
    .200 122.55
    .300 193.59
    .400 203.86
    .500 207.41
    .600 211.82

    so the exhaust seems better on a masi head but the honda intake smokes it.

    hence the discussion about a custom head with honda style ports.



    Brian
    That's a good question. I've mainly gone off of Todd's statements about the flow. I don't recall numbers.

  5. #45
    Garrett booster
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    Re: 3D printing cylinder heads ???

    I know flow numbers are just a tool to see if what you changed made improvements. But my exhaust flows 237@.450 lift and intake 302@.450. I've never looked at stock k numbers. But I know cnc k's exhaust and intake flows a lot more, and now they have the billet head and new aftermarket cast heads. So options are endless.

  6. #46
    turbo addict
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    Re: 3D printing cylinder heads ???

    Why does it matter what a head flows at a lift that's pretty much physically impossible? I haven't checked yet (Rick Diogo could speak to this maybe), but I don't think the Masi can get a valve .500 off the seat. There's a few reasons I say that, but there's physical limitations in the valve train area that will cap what can be done.

    I'd rather have fat duration at a decent flow at a lower lift than a huge peak number and nothing in between ruining valve springs...that's just me.

  7. #47
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    Re: 3D printing cylinder heads ???

    Quote Originally Posted by Reaper1 View Post
    Why does it matter what a head flows at a lift that's pretty much physically impossible? I haven't checked yet (Rick Diogo could speak to this maybe), but I don't think the Masi can get a valve .500 off the seat. There's a few reasons I say that, but there's physical limitations in the valve train area that will cap what can be done.

    I'd rather have fat duration at a decent flow at a lower lift than a huge peak number and nothing in between ruining valve springs...that's just me.
    Having had Rick's head in my posession for a while I can attest that .460-.470 lift has been attained. A whole bunch more duration than stock too. You have potential piston to valve as well as valve to valve issues running this kind of lift in a Masi head. Even assembly before timing belt is installed needs to be done with care. As earlier mentioned, bucket bores need to be modified for increased lift and duration of camshaft.
    Todd

  8. #48
    Garrett booster
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    Re: 3D printing cylinder heads ???

    What are you talking about not possible???? You donít see me posting numbers at one inch. My crane 24ís are .453 lift, ,450 is a real number. 👀

  9. #49
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    Re: 3D printing cylinder heads ???

    Quote Originally Posted by 4 l-bodies View Post
    Having had Rick's head in my posession for a while I can attest that .460-.470 lift has been attained. A whole bunch more duration than stock too. You have potential piston to valve as well as valve to valve issues running this kind of lift in a Masi head. Even assembly before timing belt is installed needs to be done with care. As earlier mentioned, bucket bores need to be modified for increased lift and duration of camshaft.
    Todd
    Todd, I actually knew about the valve to piston and valve to valve issues. I just didn't know where that started happening, especially because we do know that stock lift is something like .330"? I also know about the mods that need to be done in order to get much past stock (bucket bores being relieved, etc).

    Quote Originally Posted by boots View Post
    What are you talking about not possible???? You donít see me posting numbers at one inch. My crane 24ís are .453 lift, ,450 is a real number. 👀
    As I just stated to Todd, I didn't exactly know where the Masi started having mechanical interference. I knew more than stock (a LOT more) could be achieved, I just didn't know how much. I was specifically talking Masi, not the other heads as I do know A420/2.4 heads can get up in that range.

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