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Thread: Two Piece Porting

  1. #61
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Two Piece Porting

    Fits like a glove. (Albeit upside down...)
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  2. #62
    Slugmobile & MeanMini Caretaker Turbo Mopar Contributor wheming's Avatar
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    Re: Two Piece Porting

    AJ, any chance of getting more material and doing a group buy in the future?
    Also what internal diameter did you use for the spacer ports?
    Thanks.
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  3. #63
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    Re: Two Piece Porting

    I looked into doing some of these.
    https://www.ebay.com/sch/i.html?_odk...sheet&_sacat=0
    the material is inexpensive and can be purchased in sheets.

    weird problem is they seem to come in 12 inch pieces. our intake was 13 or 14 inches across at that gasket..
    So i considered making them two pieces. to save on odd material stock sizes.



    either way it came out with out low volume of orders to be about 70-90 each set to make..

    those look nice though. I would love to have one. wonder what the temp RSI values are of that material.

  4. #64
    Supporting Member Turbo Mopar Contributor supercrackerbox's Avatar
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    Re: Two Piece Porting

    Quote Originally Posted by wheming View Post
    AJ, any chance of getting more material and doing a group buy in the future?
    Also what internal diameter did you use for the spacer ports?
    Thanks.
    And how well does it line up with the holes on a stock manifold? I spent a lot of time with templates to make the transition from the top half to the runners as smooth as possible.

  5. #65
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Two Piece Porting

    Lined up perfect with my ported manifold. I’ll take some photos when I have time.

  6. #66
    See me ride out of the sunset... Turbo Mopar Staff BadAssPerformance's Avatar
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    Re: Two Piece Porting

    Sometimes there is enough core shift porting to the gasket will break through the wall so you can add some material on the backside before hand. While the welder is out you can add a couple more bosses for potential direct port fuel or nitrous later on. Here is the one on JoeDuno's van back when it was "in process"

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  7. #67
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: Two Piece Porting

    Bummer inn the core shift, mine didnt get thin there bit I HD to lay down a third Layer of molten aluminium in some low spots today to go 60mm consistent
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  8. #68
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    Re: Two Piece Porting

    Quote Originally Posted by Force Fed Mopar View Post
    What a local machinist friend did with mine, is made a template that matched the stock upper and lower ports together as close as possible, installed locating pins in the lower and matching holes in the upper to make sure everything stayed put. Used the template and dye to mark what needed smoothing for a perfect transition. No porting per say, but could have been done in the same fashion. Same was done to the neck and 52mm TB. That way anytime it need to be take apart for any reason, the pins would locate everything right back in perfect position.
    I have a 2 piece intake like this. It was bolted to a Shelby engine that I picked up last year ( mid FL ). The roll pins are super tight and the plenum to runner transition is nearly seamless. I wish I took pics before I installed it...

  9. #69
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Two Piece Porting

    Here's the spacer sitting on the lower half of my ported manifold.
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  10. #70
    Supporting Member Turbo Mopar Contributor supercrackerbox's Avatar
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    Re: Two Piece Porting

    Not too shabby. Any hood clearance issues? (if you've gotten that far)

  11. #71
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    Re: Two Piece Porting

    Shouldn't be, I've had one on my GLHT for years. Mine is 3/8" and I measured clearance by placing a wad of aluminum foil placed on top of the manifold and closing the hood. About 1" of clearance, IIRC.
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  12. #72
    Supporting Member II Turbo Mopar Contributor ajakeski's Avatar
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    Re: Two Piece Porting

    It's going in my van, so there shouldn't be.

    Quote Originally Posted by supercrackerbox View Post
    Not too shabby. Any hood clearance issues? (if you've gotten that far)

  13. #73
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    Re: Two Piece Porting

    Quote Originally Posted by ajakeski View Post
    Here's the spacer sitting on hte lower half of my ported manifold.
    I bolted mine to the lower, cleaned up any disparities with the scroll rolls, then tuned it over and bolted it to the top of the mani and did the same thing with clean up. THen when you bolt it all together, it's perfect

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  14. #74
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    Re: Two Piece Porting

    I was thinking of making a spacer by hand. I have a lengel intake that's going in an h body. Should I get 3/8 or 1/2 thick material?

  15. #75
    Supporting Member Turbo Mopar Contributor 2.216VTurbo's Avatar
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    Re: Two Piece Porting

    Im thinking more is more. Still theory at this point tho. I'd go an inch (most ebay stuff seems to be metric?) if L body hood clearance wasn't an issue...

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  16. #76
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    Re: Two Piece Porting

    I found 18x12x 1/2 thick g10 on the bay. I actually have a machine shop with a water jet 9 miles from my house so shot them a message.

  17. #77
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    Re: Two Piece Porting

    A 2 piece gasket is right about 2 3/4 X 12 7/8, buy material so as many can fit on your stock as possible. Heck, make 4 and sell 2 of them. Once the waterjet place has the pattern entered in(my place charged me 2 hours labor for this) their CAD program, they can make as many as needed. THey charge a fee by the 1/4 hour increments but the phenolic cuts fast.

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  18. #78
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    Re: Two Piece Porting

    I was thinking it would be badass to have o-ring grooves machined so I could do away with God forsaken paper gaskets but I think that would add quite a bit of expense.

  19. #79
    Moderator Turbo Mopar Staff Force Fed Mopar's Avatar
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    Re: Two Piece Porting

    Quote Originally Posted by thedon809 View Post
    I was thinking it would be badass to have o-ring grooves machined so I could do away with God forsaken paper gaskets but I think that would add quite a bit of expense.
    Make sure both surfaces are completely flat, then use anaerobic sealant.
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  20. #80
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    Re: Two Piece Porting

    Quote Originally Posted by thedon809 View Post
    I was thinking of making a spacer by hand. I have a lengel intake that's going in an h body. Should I get 3/8 or 1/2 thick material?
    with the Lengal plenium I'd consider making the spacer a simple rectangle instead of cutting it to the shape of the gasket - then it would also block the plenium from any "line of site" heat transfer from the exhaust castings below

    by nature that polished aluminum can is going to collect and store heat

    leaning on the polished fins on a black valve cover shows the difference in heat retension / transmission of polished parts vs black painted ones

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