Ported exhaust manifolds?

Discussion in 'Generation 4 - Performance Upgrades' started by 15SHOPP, Feb 22, 2020.

  1. 15SHOPP

    15SHOPP SHO Member

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    For those that have upgraded their turbos, have you looked into swapping exhaust manifolds for ported/extrude honed ‘13+ OEM options?
     
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  2. Jordan_R

    Jordan_R Stock Block Ready To Knock...er..Rock

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    When I build the motor I plan on extrude honing the 13+ manifolds I have on the car as well as the exhaust side of the turbos however until you are ready to make like 600+ I don't see a point in thinking about it. Matt at GH estimates I am making 550awhp right now despite being tuned currently by AJPTurbo and things are flowing marvelously. However I think once the whole engine gets a bit of porting and cleaning it would be a wonderful combination
     
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  3. SHOdded

    SHOdded SHO Member

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    bpd1151 is working on upgrading the ex manifolds on his SHO buildout.
     
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  4. 802SHO

    802SHO FULL SEND

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    Even just swapping out the 10-12 for the 13+ without extruder honing the 13+ should see a substantial increase. Until now I never knew how pathetic the OEM 10-12 exhaust manifold is.
     
  5. 15SHOPP

    15SHOPP SHO Member

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    But I already have the ‘13+ manifolds in my ‘15. I was just planning ahead for my future plans. Didn’t know how much a restriction, if at all, the manifolds are when upgrading to larger turbos
     
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  6. 802SHO

    802SHO FULL SEND

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    I just contracted Max Power Automotive to hand port a brand new set of 2013+ Exhaust Manifolds. I will share the flow data.
     
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  7. 802SHO

    802SHO FULL SEND

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    Actually, no flow data ubkess I want to pay another 200. Sorry boys, I think I'll pass on that. We'll just have to realize ported is better than stock all day long. I'll share images, and pic comparisons of my stock 10-12 to the new ported 13+ prior to a finished install.
     
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  8. 802SHO

    802SHO FULL SEND

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    Update. The 13+ manifolds were a special order item and took some time to reach Tasca. They shipped today to MaxPower Automotive. I forwarded the tracking number and will be getting pics of the process. Stay tuned.
     
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  9. Wsho

    Wsho SHO Member Supporting Member

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    So if I get manifolds from a 2013 port and polish them I can get more performance power?
     
  10. SHOdded

    SHOdded SHO Member

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    Wonder if dimpling the interior of the exhaust manifold would help the exhaust flow in any way.
     
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  11. 802SHO

    802SHO FULL SEND

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    Just swapping your 10-12 Exhaust Manifolds out to 13+ should result in more air flow to the turbos. The stock 10-12 Exhaust Manifolds are big time restrictive....something our older siblings 13+ don't have....

    I had to dig but I found the FB post from SHO Ecoboost Owners. Someone did a flow test on the 10-12 compared to the 13+ cast manifolds. Also another guy, Randy Baird hand ported his own 13+ manifolds and compared to the stock 10-12...huge difference. FB_IMG_1583070837729.jpg Screenshot_20200301-085536.png FB_IMG_1583070883794.jpg FB_IMG_1583070864013.jpg FB_IMG_1583070853761.jpg
     
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  12. 15SHOPP

    15SHOPP SHO Member

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    Thanks so much for sharing these! I can’t believe how restrictive those 10-12 manifolds are!!!!!

    After some reading and following, having low miles on my stock turbos (18k), I decided to stick with the stockers and upgrade when I need to. Turbos, LPFP, and meth are the next mods to do but also my last mods to do. When the time comes, I’ll probably pick up a set of manifolds to port and install them with the GH turbos.
     
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  13. Wsho

    Wsho SHO Member Supporting Member

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    Just ordered my new 13+ manifolds
     
  14. KillerRottie

    KillerRottie New Member

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    There is no question that they will absolutely flow better. I am no expert, but i believe the original design is for a reversion stop measure.

    CR Performance has a design that they use on the F-150 Ecoboost, but they would need a group order and they would run close to the $1000 range
     
  15. 802SHO

    802SHO FULL SEND

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    There was this video I found that made me wonder if it's all in vein...hopefully not.

     
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  16. SM105K

    SM105K HATER MAKER

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    I wouldn't get wrapped up in the just the dyno numbers honestly. I would like to see if the TQ curve moved earlier in the RPM range. Was it making the same boost? Was the WGDC percentage down? Was it hotter or colder that day? There are so many factors that he does not address.

    Remember, when I installed my GH IC....I made the same power, but with 2 psi less boost. That being said, same power but it was more efficient.
     
  17. KillerRottie

    KillerRottie New Member

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    I 2nd SM105K's remark about don't get wrapped up in the numbers as ambient weather and lots of factors can affect the numbers.

    As well as they did not show the area under the curve which is most important than just a peak value. Example - Would you give up 8 peak HP over 200 rpm to gain 2HP more over 75% of the curve between shift points?
     
  18. Wsho

    Wsho SHO Member Supporting Member

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    So if I'm swapping out the downpipes exhaust manifolds and new turbos what all parts do I need to put it back together? I have the gaskets that go to exhaust system and to the turbos from the downpipes and I just ordered exhaust manifold gaskets and I guess I need turbos gaskets that hook to the manifold am I missing anything?
    That video he buying extra parts from the dealer some of the Parts don't make sense but then again it wasn't F-150
     
  19. 802SHO

    802SHO FULL SEND

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    If your oil and coolant lines to the turbos are in good shape, you might want to change at least their gaskets as well
     
  20. 802SHO

    802SHO FULL SEND

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    So true! I'm after low WGDC% and thus make my turbos more efficient and build more boost with ease
     
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