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Thread: Pinto 3D model of cylinder head

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    Re: Pinto 3D model of cylinder head

    Great thread, did you stick with the pinto valves ?

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    Pit Crew 5tox's Avatar

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    Re: Pinto 3D model of cylinder head

    Very interesting read

    top work!

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    Re: Pinto 3D model of cylinder head

    Incredible!

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    Re: Pinto 3D model of cylinder head

    Hope you have had a successful dyno by now.

    Once you had you CAD model finished did you do any CFD analysis on it? I have no experience in this area but am still interested in it. I have no idea if your CAD model is of the type even to permit analysis....sort of asking questions well out of my depth
    1970 Mk1 Escort Tarmac Rally Car

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    Re: Pinto 3D model of cylinder head

    Great work Mac
    I would like to pick you brain. I have a mk1 escort race car running a pinto and currently want to manufacture my own roller rockers. I also work with Solidworks and would like to know if you drew up the geomarty of the valves and cam position. I do not have the probe to my exposal like you have. Picking up the correct angle of the valves proves to be very difficult and is not accurate enough to my liking. Any help would be appreciated.

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    Re: Pinto 3D model of cylinder head

    Bit of an update

    Been playing around with my carbs and ignition timing and the engines running really good now, still want to get it on the rolling road thou. But I have plans for engine management over the winter. I always want to be able to compare this engine to my old one on the 45ís. Now it's up and running and usable I think Iím going to have to change my cwp, 4.6 isnít really very good with a torquay engine.

    Regard the valve angleís, see the drawing below, should give you most the stuff you need.


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    Re: Pinto 3D model of cylinder head

    Mac,

    Again, Great work.

    Have you any more pics from the process?

    Which valves (type) and sizes did you end up with.

    Did you put the head on a flowbench? Figures?

    Shaun

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    Re: Pinto 3D model of cylinder head

    Finally got my escort on the rolling road to get this engine set up.

    As my plan all along was to make a nice drivable engine with lots of torque the peak power figure was never going to impress. But it still made 135 BHP, but I'm almost hitting max torque at about 3250rpm and it runs flat till about 5250rpm before dropping off.

    This new engine is about 40 BHP down on my on my last engine, but it feels quicker, We'll see what I can do the 1/4 mile in at classic ford show. I've got 14.5 to beat.


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    Re: Pinto 3D model of cylinder head

    what camshaft was used? can't remember if you mentioned it.
    its not dead till it's buried!


    T.I.T engineering. "Feel the power!"

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    Re: Pinto 3D model of cylinder head

    Quote Originally Posted by Mac View Post
    Finally got my escort on the rolling road to get this engine set up.

    As my plan all along was to make a nice drivable engine with lots of torque the peak power figure was never going to impress. But it still made 135 BHP, but I'm almost hitting max torque at about 3250rpm and it runs flat till about 5250rpm before dropping off.

    This new engine is about 40 BHP down on my on my last engine, but it feels quicker, We'll see what I can do the 1/4 mile in at classic ford show. I've got 14.5 to beat.

    good stuff TBH the way you have ported the head i would expect it to pick up a lot of bottom end, its the sort of shape i like for road engines

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    Re: Pinto 3D model of cylinder head

    Quote Originally Posted by caprimentle View Post
    what camshaft was used? can't remember if you mentioned it.
    Cam is a kent fr34 which is fast road injection, as I did plan to fit injection to the engine, it may happen 1 day

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    Re: Pinto 3D model of cylinder head

    Yet another great home brewed thread thou i think i might be speaking for a few of us this CAD programming lark is over my head.....

    keep the updates flowing and you seem to be going in the right direction

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    Re: Pinto 3D model of cylinder head

    Great thread and very interesting. Thank you for sharing.

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    Re: Pinto 3D model of cylinder head

    Quote Originally Posted by Mac View Post
    Cam is a kent fr34 which is fast road injection, as I did plan to fit injection to the engine, it may happen 1 day
    isn't that cam simply a mild version for use with the OEM injection ?

    perhaps that why its all so low down ?

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    Re: Pinto 3D model of cylinder head

    I know this is an old thread but its a fascinating one. Did this head under go any more cnc work or valve/cam changes in the last few years?

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    Re: Pinto 3D model of cylinder head

    Hi Mac just found your post. I race historic formula ford 2000 and I port my own heads. A big ask from a total stranger but would you be willing to share the basic un-ported cad file? I have cnc machinery and I have made a manual 4th and 5th axis table so that I can machine heads. We have strict rules in our series so we cannot add material only remove we are also governed by the cam and carb etc. We also have a dyno and flow bench it’s only a hobby but we take it seriously.

    I’ll totally understand if you do not want to share I understand the amount of work you have put in to get where you are.

    I would only only use it for myself I’m not interested in selling other people them.

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    Re: Pinto 3D model of cylinder head

    I'd be interested in the cad file or an STL file. I've got into 3D printing and it would be interesting to print it out.
    I've been doing sierra parts at the moment. Like this rear bumper bracket for a sapphire


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