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2011-2014 Mustang GT Cooling Head Mod by MMR, eliminate the #8 cylinder failure today

Discussion in 'Engine/Tuning' started by Modular Racing, Aug 7, 2012.

  1. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    MMR 2011-2016 5.0 Head Cooling Mod

    UPDATE! HUNDREDS OF THESE KITS SOLD WITHOUT A SINGLE #8 CYLINDER FAILURE !!

    MMR's cooling head mod is designed to help eliminate hotspots in the #8 cylinder by promoting coolant flow around cylinder # 8 - the cylinder long known to be the first to detonate with aggressive naturally aspirated tunes and forced induction. Dont fall victim to this failure, protect your investment with this simple, professional kit. Installation requires tapping out the factory freeze plugs (very easy) and simply installing the MMR kit. Kit is sealed with high grade O rings (included). Socketless hose does not require hose clamps for simple push on installation. Inlcudes all parts shown, no other parts required. Fits all Mustang, BOSS and F150 with 5.0 TiVCT engine. Billet Alloy construction. This should be the first step in modifying your 5.0 , 100% USA MADE by MMR

    Normally $229.99
    ON SALE NOW FOR $199.99

    Order here now: http://www.modularmotorsportsracing...page=product_info&cPath=26_27&products_id=555

    Dealer Inquiries Invited

    or call 1-877-MOD-POWR



    [​IMG]

    [​IMG]
     
    Last edited: Jan 10, 2017
  2. 01bluesnake

    01bluesnake Authorized Vendor Authorized Vendor Established Member

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    Very nice setup, another item added to my list to grab from you guys lol.
     
  3. 32V Stang

    32V Stang New Member Established Member

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    is it possible to install in car? and is it hard?
     
  4. Sof Top

    Sof Top boost junkie! Established Member

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    x2 more info on install.
     
  5. scott_0

    scott_0 Well-Known Member Established Member

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    I don't see this being done with the motor in the car, if it indeed will help with the issue, it'd be worth it
     
  6. jymboslice

    jymboslice Rookie Established Member

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    i dont think you will be able to install this while the engine is in the car either. Look at the mounting points and look at how much room you have behind the engine to the firewall.
     
  7. RFM50

    RFM50 Active Member Established Member

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    He described tapping out the freeze plugs. I'm pretty sure you can't do that unless the heads are off the block.
     
  8. jymboslice

    jymboslice Rookie Established Member

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    you can do them while the heads are on the block. The freeze plugs are just on the back of the head, uncovered/out in the open. At least i think they are.
     
  9. twistedneck

    twistedneck Active Member Established Member

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    why would Ford not have done this?
     
  10. r.barn

    r.barn New Member Established Member

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    Because it cost money and is only necessary on modified engines.
     
  11. o2gt

    o2gt Active Member Established Member

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    what are considered normal cylinder head temps for the 5.0?
     
  12. svt5.4

    svt5.4 SALLY NUTS RACING Established Member

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    Didn't LMS engine find that the heating issues are not the #8 but the center cylinders because of block design?
     
  13. slagburn

    slagburn SVT Crazy Poster Established Member

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    After just having a couple Coyote powertrains out, I wonder if this couldn't be done by lowering the entire cradle but leaving the trans crossmember bolted up. That might give enough room to knock the freeze plugs out.
     
  14. wazslow

    wazslow New Member Established Member

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    Basically the same as the 03-04 Cobra. I was able to do the head cooling mod with that motor still in the car. Interested to see if this is the same way.
     
  15. nicksender

    nicksender Member Established Member

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    I'm curious as well to hear if there was any testing done on this to prove it out. I had the parts in hand to do this on my Cobra but could never get motivated to put it on due to the installation hassle and lack of concrete evidence I needed it.

    Hopefully MMR can chime in here and answer some of these questions on installation and cooling benefits. It looks like a very profitable item for them if the data supports the claims.
     
  16. SirJAG

    SirJAG Member Established Member

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    more info on the intsall please MMR.
     
  17. fake

    fake New Member Established Member

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    So improper cooling is causing the #8 to pop? It would be interesting to see MMR's explanation on why the #8's were popping. I thought it was early tunes causing the issue? You also have the isolated issues where guys are "claiming" their # 8 popped with a completely stock engine.
     
  18. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    The Install can be completed in the car, like many modifications such as headers etc it is tight but can be done. A local customer just did the install and said he removed the intake manifold and used a curved pry bar between the firewall and the freeze plug, once the freeze plug turned sideways he was able to grab it with a pair of pliers and pull it out, he explained it as being pretty easy with the manifold being off.

    In regards to testing. We have been using this product for quite some time on our new racecar engines that we have been testing. It is is interesting to not that ford built the same exact thing into the front of the block ( a passage to balance coolant flow from side to side), the problem is the water is fed to the engine from the front, by the time it reaches the rear cylinders it is at its highest temperature. This product simply balances the flow and promotes flow at the rear cylinders.

    We initially noted the problem when our test engine had higher EGT's in the # 8 cylinder than all of the others. The reason for this is as coolant temp rises, evaporation of fuel in the cylinder head intake port and in the chamber (prior to being ignited) is higher, this makes the cylinder run more lean than the others increasing the chance for detonation/pinging.

    Lastly, the picture below shows the large water jacket (just below the intake ports) surrounding the intake port on cylinder # 5, 6 and 7, note that cylinder # 8 (far left) does not have it, another reason for the higher coolant temp on cylinder # 8

    [​IMG]

    For those considering having the engine out of the car or a clutch job done this is a no brainer, the install in this case is takes just a few minutes and this is cheap insurance to protect your engine (new or old)

    MMR
     
    Last edited: Aug 8, 2012
  19. Modular Racing

    Modular Racing Authorized Vendor Authorized Vendor

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    Hopefully the picture added above just a moment ago will help people understand the cause of the problem a little bit better.

    Please call anytime if you have questions

    MMR
     
  20. Chris_Red_V8

    Chris_Red_V8 Shiny. Established Member

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    Very cool. Is there any concern with air being trapped at the top of the arc of the crossover?
     

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